Raised Access Floor - (AE Breadth Area)

Size: px
Start display at page:

Download "Raised Access Floor - (AE Breadth Area)"

Transcription

1 Raised Access Floor - (AE Breadth Area) Currently, the Plaza has a raised access flooring system on both the 7 th and 8 th floors. The 8 th floor is designed with an independent HVAC system utilizing an underfloor distribution system. The 7 th floor, however, uses a conventional distribution HVAC system which is tied to the building HVAC. The suggestion to use a raised access flooring system was made by the architect, Kendall Heaton, primarily due to the sophisticated and rapidly changing technical needs of the communication system on those floors. Benefits Utilizing raised access flooring throughout an office has proven to be a beneficial choice for a variety of building owners and occupants. Pennsylvania s Department of Environmental Protection found that by using a raised access flooring system coupled with an underfloor air distribution system they could reduce life cycle and energy costs while increasing occupant productivity. Also, ASHRAE has found that underfloor air can provide increased indoor air quality and occupant comfort. The primary benefits addressed in this analysis are the ease of initial installation of the systems, the quicker renovation Investigated Benefits Ease of initial installation Quicker renovation times Reduced churn costs Additional Benefits Improved Indoor Air Quality (IAQ) Improved occupant comfort durations and the decreased churn costs. Currently, the Plaza is designed with a complex system of ductwork. This presents not only an MEP coordination challenge, but also adds to the overall cost of the systems. Basic Design Components The raised access flooring system is a 12 inch high system, 24 x24 flooring tiles. It is covered by modular carpeting tiles, allowing for ease of access to the flooring system. The underfloor HVAC system utilizes the space below the flooring as the supply air plenum, with specialized ducted designs for zones which have more specific climate control needs. Air terminals supply air through the floor into the occupied space. These terminals, also called MIT s (Modular Integrated Terminal), can be used either with or without ductwork, and function as either a simple diffuser or also as a VAV box. The system uses the ceiling plenum as the return air plenum. HVAC control, power, data and voice are all supplied through specialized modular components. These include control boxes, utility boxes, and quick connect cables. Because these systems share an integrated supply system, are modular, and have plug connections, installation is greatly simplified, reducing installation time and labor cost. 15

2 Concerns Floor to floor height considerations One obvious concern with raised access flooring is the idea that it will require additional floor to floor height, thus adding to the overall cost of the structure. On the Plaza, the additional floor to floor height between floors seven and eight, however, is a result of the overhead HVAC and fifteen foot ceilings. A raised access floor can be implemented on floors two through six with no increase in floor to floor height. There are a few beams which, under the modified system, would protrude six inches below the bottom of the ceiling. This can be solved, however, with minimal modification by constructing small bulkheads around these beams. Cold Feet On early implementations of underfloor air distribution, occupants complained of having cold feet and legs. This problem is correctable, however, by utilizing air terminals which offer both air volume control as well as directional control, and by locating these terminals between occupant workspaces. HVAC System Design Airflow Design The underfloor air system is a displacement system. In contrast to a traditional HVAC system, a displacement system is designed to supply air at only a few degrees cooler than the desired room temperature. Diffusers in the floor supply this cool air at a low velocity, displacing the warmer air already in the room. The warmer air, rising naturally, is exhausted through returns located at ceiling level. Because air supplied at a warmer temperature and at a lower velocity this system is less drafty than a conventional overhead air supply system. Also, because the air is moving from the floor to the ceiling, the heat and contaminants produced in the space are carried away from the occupants rather than forced toward them. Base Building System The system currently designed for the Plaza is a traditional overhead supply system, supplying air at 55 degrees and at a higher velocity. For a displacement distribution system, which supplies air at 65 degrees, the cooling loads are lessened. Also, the elimination of ductwork reduces the fan load on the system. This allows for the current chillers and air handling units to be retained. A common concern of displacement systems is humidity control. Because the supply air is warmer than a traditional system, it is more difficult to ensure that the air is sufficiently dehumidified as it passes through the chiller system. This concern is addressed, however, by retaining the current chilled air temperature. 16

3 Because the air supplied by the chiller is at a cooler temperature than the required supply air temperature, VAV boxes with reheat coils are required on each of the floors. Also, underfloor supply plenum systems generally incorporate individual air handling units for each floor. This is emulated by the VAV boxes, however, by allowing each floor to individually mix and control the air being supplied. The underfloor system also allows for the elimination of some of the base building ductwork. The main vertical supplies and returns must be retained. The main supply and return trunks on each floor, however, are no longer necessary. HVAC Zones To help with individual control of building zones with differing climate control needs, a rectangular office building such as the Plaza, is divided up into no less than 9 zones. These zones include a central zone, four perimeter zones and four corner zones. These are further divided for areas such as conference rooms and individual offices. In order to separately control the individual zones, plenum barriers, VAV air terminals and underfloor ductwork are utilized. Each of these zones utilizes the space above the ceiling as the return air plenum. Central Zones The central zone is the most basic of the various zones. Because the heating and cooling loads are consistent across the entire space, the air can be supplied at a constant volume throughout the zone. The air terminals used in this space do not need to be automatically controlled, although accessible manual controls are often viewed as a benefit by the occupants. The floor plenum in the Plaza is obstructed by the underfloor ductwork needed to supply air to enclosed spaces, such as conference rooms. Also, the ceiling return plenum is obstructed by a few deep girders. Therefore, these are used as natural zone barriers, which separate the central zone into four smaller zones. Therefore, each of these smaller zones has its own supply and return ducting to compensate. Perimeter Zones Because of the additional heating and cooling loads which are incurred around the perimeter of the building, additional thermal control is required. In order to compensate for this, perimeter zones are created using a semi-ducted distribution system. Air terminals are placed both along the perimeter wall as well as along the central zone. The terminals are connected through ductwork, and a fan powered heating terminal. During cooling mode, all of the air terminals act as simple, independent VAV boxes, regulating the supply from the underfloor plenum. During heating mode, the central air terminals act as intakes, from which the fan draws air from the occupied space, through the heating terminal, and is supplied back to the occupied space through the perimeter air terminals. 17

4 Corner Zones Corner zones are separate from perimeter zones, but are treated similarly. Two air terminals are placed along the central zone as air intakes, while another two air terminals are placed along the perimeter wall as supply air. These units are connected in the same fashion as with the perimeter system, with ductwork and a fan powered heating terminal. Perimeter Enclosed Offices Perimeter enclosed offices utilize the same system as perimeter zones. Because the air terminals are individual VAV boxes, each terminal can be separately controlled, thereby independently regulating office temperatures. Non-perimeter Enclosed Offices These office spaces can be regulated using constant volume air terminals, treated in the same way as the central zone. If the space is expected to receive unusually high cooling loads, it can be treated instead as a conference room and supplied with ducted cooling. Conference Rooms Because of the higher and more varied loads experienced by conference rooms, a ducted system is preferable to the underfoor plenum. The air is then supplied through VAV air terminals, which combined with individual thermostats, allows for temperature control of individual rooms. 18

5 Construction Although there is the added task of installing the raised access floor, the installation of the mechanical, electrical and communication infrastructure is simplified. By utilizing a fully modular system, installation and connection of these components is made significantly simpler. Because power, data and voice can all utilize a shared cable, only one cable needs to be run between each box. The HVAC controls utilize a similar system, even further simplifying the overall installation. Renovation Because of the modular nature of these systems, renovation is simplified. Components can be reused, virtually eliminating additional materials costs. This includes nearly all of the components, from the mechanical system VAV boxes to the modular carpet tiles. The modular nature of the system also allows for convenient renovation of individual work spaces, which permits spaces to be configured to meet the needs of specific employees. Impact to Initial Cost The base building costs are increased for a raised floor system due to the additional costs of the floor and of the need to raise the core area. For the Plaza redesign, there was no change to the base building HVAC systems. The tenant fitout costs are also slightly more for the raised floor system. This is due to the increased cost of materials for the specialized distribution systems. The HVAC costs are significantly reduced, however, due to the elimination of large quantities and complexities of ductwork. Also, because of the modular nature and integration of the electrical and communication distribution systems, installation labor costs are reduced. The additional first cost, therefore, is only $800,000, or about $3.67/SF. First Costs Conventional Overhead Systems Raised Floor Systems Base Building Raised Access Floor $0 $1,104,831 Raised Core Area $0 $231,192 HVAC $2,015,000 $2,015,000 Tenant Fitout HVAC $1,873,182 $1,011,893 Electrical Power $982,091 $1,146,100 Data/Comm. $1,081,364 $1,259,032 TOTAL $5,951,636 $6,768,048 Cost/SF $26.77 $30.45 Additional First Cost Per SF $0.00 $3.67 Total $0 $816,411 Churn Cost Analysis The average office churn rate for utilities is nearly 50%, while typical general office buildings are around 40% (International Facilities Management Association). Because 19

6 this building is not exclusively leased by PPL Resources, the more conservative general office churn rate of 40% is Distributed Churn Costs used in the cost savings analysis. For a typical overhead system the churn costs for the Plaza would be $1.2 million per year. For a raised access system, however, the yearly churn cost is only $270,000, an 80% reduction in cost. Therefore, the payback period for the system is less than a year. Impact to Schedule The schedule is impacted in a variety of ways through the use of Conventional Overhead Systems Raised Access Systems Churn Cost /SF $14.89 $3.08 Churn Cost Total $3,309,694 $684,066 Churn Rate (%) 40% 40% Churn Cost /Year $1,323,878 $273,626 Churn Cost Savings /Year $0 $1,050,251 First Costs /SF $27 $30 First Costs Total $5,951,636 $6,768,048 Additional First Cost $0 $816,411 Payback Period (Years) raised access flooring, an underfloor air distribution system and a modular utility distribution system. The raised access floor itself increases the duration of the schedule. For the Plaza, 70 days are necessary to install the flooring system. This is done simultaneously to the installation of MEP rough-ins, however, and is offset by the decrease in time required to install the MEP systems. The significant simplification and reduction in ductwork will decrease MEP coordination times, and overall cause the project to progress more smoothly. 20

UFAD and Displacement Ventilation. Dan Int-Hout, FASHRAE Chief Engineer Krueger Richardson, Texas

UFAD and Displacement Ventilation. Dan Int-Hout, FASHRAE Chief Engineer Krueger Richardson, Texas UFAD and Displacement Ventilation Dan Int-Hout, FASHRAE Chief Engineer Krueger Richardson, Texas UFAD and DV Systems, Objectives: Understand Differences between: Well Mixed, Partially Stratified and Fully

More information

Underfloor Air Systems. How It s Different: Overhead vs. Underfloor Air Systems

Underfloor Air Systems. How It s Different: Overhead vs. Underfloor Air Systems Underfloor Air Fresher Design Developers, building owners and architects face a complex challenge: build buildings that are not only pleasing aesthetically, but also are efficient, flexible and smart.

More information

maximize displacement ventilation Opportunities

maximize displacement ventilation Opportunities maximize displacement ventilation Opportunities DESIGN STRATEGIES In Seattle, the Amazon Headquarters building, features an open air atrium that provides natural ventilation throughout the facility. DESIGN

More information

DESCRIPTION OF TECHNOLOGY

DESCRIPTION OF TECHNOLOGY March 2009 Underfloor Air Distribution INTRODUCTION Copyright 2009 Glumac. All rights reserved. While this Green Paper discusses primarily the use of raised access floors for air distribution, HVAC integration

More information

Displacement Ventilation in Classrooms

Displacement Ventilation in Classrooms TWO DIFFUSERS, THE WHITE COLUMNS ON EACH SIDE OF THE WHITEBOARD, PROVIDE COOL SUPPLY AIR TO THE DEMONSTRATION DV CLASSROOM. THE DV CLASSROOM DEMONSTRATION FEATURED A CUSTOMIZED ROOFTOP HVAC UNIT. Displacement

More information

Technical Assignment 3

Technical Assignment 3 0 David H. Koch Institute for Integrative Cancer Research Senior Capstone Mechanical Option Technical Assignment 3 Mechanical Systems and Existing Conditions Report David H. Koch Institute for Integrative

More information

Temperature Control and Zoning of UFAD Systems

Temperature Control and Zoning of UFAD Systems Temperature Control and Zoning of UFAD Systems Presented by TROX USA Raised access flooring systems have become a very popular conduit for the delivery of power, voice and data services, as their accessibility

More information

Single Zone System. One duct system Used mostly in small buildings Forced air system All spaces controlled by a single thermostat Single air return

Single Zone System. One duct system Used mostly in small buildings Forced air system All spaces controlled by a single thermostat Single air return Single Zone System One duct system Used mostly in small buildings Forced air system All spaces controlled by a single thermostat Single air return Multi Zone System Used in small to medium sized buildings

More information

IDL20e (2 way discharge) IDS60e (4 way discharge) Inffusers. UDI (vertical discharge) Frequently Asked Questions

IDL20e (2 way discharge) IDS60e (4 way discharge) Inffusers. UDI (vertical discharge) Frequently Asked Questions IDL20e (2 way discharge) IDS60e ( way discharge) Frequently Asked Questions UDI (vertical discharge) Inffusers INFFUSER FREQUENTLY ASKED QUESTIONS The following are frequently asked questions (FAQ s) on

More information

Displacement Ventilation

Displacement Ventilation Displacement Ventilation Displacement Ventilation Displacement Ventilation vs. Dilution Ventilation Characteristics Design Considerations Layout and Selection Product Overview Casino Case Study Dilution

More information

Better Air Dispersion for. Underfloor. Plenums

Better Air Dispersion for. Underfloor. Plenums Better Air Dispersion for Underfloor Plenums Uniform Air Mixing for UFAD Plenums Inlet Connection Zippered inlet collar secures to metal using DuctBelt and Anchor UFAD Technology UnderFloorSox (UFSoxTM)

More information

Jim Aswegan Chief Engineer

Jim Aswegan Chief Engineer Displacement Ventilation Jim Aswegan Chief Engineer Displacement Ventilation Systems Comfort & Contaminate Control DV Concepts & System Benefits Outlet Types and Air Patterns Example l Space Layouts Displacement

More information

Improved Thermal Comfort & Energy Efficiency with low-pressure VAV diffusion design

Improved Thermal Comfort & Energy Efficiency with low-pressure VAV diffusion design Improved Thermal Comfort & Energy Efficiency with low-pressure VAV diffusion design Technical Paper A guide to the design of an effective low pressure VAV air distribution system By Noel de Villiers Pr.

More information

FORM EG2 (502) FlexSys Configured Packaged Rooftop Air Conditioning Units

FORM EG2 (502) FlexSys Configured Packaged Rooftop Air Conditioning Units FORM 100.50-EG2 (502) TM FlexSys Configured Packaged Rooftop Air Conditioning Units TABLE OF CONTENTS PAGE TOTAL INTEGRATED HVAC SYSTEM... 3 AN INTEGRATED SOLUTION... 4 INTRODUCTION... 6 System Description...

More information

High-Performance VAV Systems

High-Performance VAV Systems This article was published in ASHRAE Journal, October 2011. Copyright 2011 American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. Posted at www.ashrae.org. This article may not

More information

HVAC 101. H V A C S y s t e m s

HVAC 101. H V A C S y s t e m s H V A C 1 0 1 S y s t e m s Introduction & Overview Should you care? Mechanical System Types Components & operation Popular Application Key Issues and Design Considerations System Comparisons First Cost

More information

UFAD Underfloor air distribution system

UFAD Underfloor air distribution system UFAD Underfloor air distribution system Design guide Version 1.0 Index Introduction... 4 System description... 5 The raised access floor... 5 Underfloor air distribution... 5 Perimeter and interior zones...

More information

Dehumidifying with Dedicated Outdoor Air

Dehumidifying with Dedicated Outdoor Air Dehumidifying with Dedicated Outdoor Air System Configurations Figure 71. Configurations for dedicated outdoor-air systems A dedicated outdoor-air handler separately filters, cools, dehumidifies, heats,

More information

7. MECHANICAL SYSTEM DESIGN

7. MECHANICAL SYSTEM DESIGN 7. MECHANICAL SYSTEM DESIGN The second primary topic of this thesis is to investigate the application of a dedicated outdoor air system (DOAS) to the SLCC. The stated goals for this thesis of improved

More information

ASHRAE JOURNAL ON REHEAT

ASHRAE JOURNAL ON REHEAT Page: 1 of 7 ASHRAE JOURNAL ON REHEAT Dan Int-Hout Chief Engineer Page: 2 of 7 Overhead Heating: A lost art. March 2007 ASHRAE Journal Article Dan Int-Hout Chief Engineer, Krueger VAV terminals provide

More information

IAQ Building Education and Assessment Model (I-BEAM)

IAQ Building Education and Assessment Model (I-BEAM) Heating, Ventilation, and Airconditioning (HVAC) Text Modules IBEAM IAQ in L... http://www.epa.gov/iaq/largebldgs/ibeam/text/hvac.html Page 1 of 6 10/21/08 IAQ in Large Buildings http://www.epa.gov/iaq/largebldgs/ibeam/text/hvac.html

More information

Senior Thesis Centre Community Hospital East Wing Addition - Proposal Keith Beidel Mechanical Option 12/05/02 1

Senior Thesis Centre Community Hospital East Wing Addition - Proposal Keith Beidel Mechanical Option 12/05/02 1 Table of Contents Page Number(s) Executive Summary 2 Project Background 3 Proposed Depth Alternatives 4 Proposed Depth Redesign 5-7 Justification of Proposed Depth Redesign 8 Proposed Breath Redesign 9

More information

FAST AND ROBUST BUILDING SIMULATION SOFTWARE. Chilled Beam Performance: 1 Shelly Street, Sydney

FAST AND ROBUST BUILDING SIMULATION SOFTWARE. Chilled Beam Performance: 1 Shelly Street, Sydney FAST AND ROBUST BUILDING SIMULATION SOFTWARE Chilled Beam Performance: 1 Shelly Street, Sydney 3D Model Creation 1 Shelley Street, Sydney 3D Model Creation 1 Shelley Street, Sydney Daylight Analysis 1

More information

Underfloor Air Distribution:

Underfloor Air Distribution: Underfloor Air Distribution: An underfloor air distribution system utilizes a plenum space between the structural slab and the underside of a raised floor to distribute the conditioned air to the room.

More information

OSU Alumni Center Phase I Implementation Review. Oregon State University 130 Oak Creek Bldg. Corvallis, Oregon

OSU Alumni Center Phase I Implementation Review. Oregon State University 130 Oak Creek Bldg. Corvallis, Oregon OSU Alumni Center Phase I Implementation Review Prepared for Oregon State University 130 Oak Creek Bldg. Corvallis, Oregon 97331 October 31, 2011 Job No. 02.11.00113 Introduction: Glumac was engaged by

More information

HVAC DISTRIBUTION and DELIVERY SYSTEMS

HVAC DISTRIBUTION and DELIVERY SYSTEMS HVAC DISTRIBUTION and DELIVERY SYSTEMS (Part 1) Ball State Architecture ENVIRONMENTAL SYSTEMS 2 Grondzik 1 REMINDER HVAC = Heating, Ventilating, Air-Conditioning The AC part of HVAC implies a system that

More information

Engineering Guide VAV Diffusers. Please refer to the Price Engineer s HVAC Handbook for more information on VAV Diffusers.

Engineering Guide VAV Diffusers. Please refer to the Price Engineer s HVAC Handbook for more information on VAV Diffusers. VAV Diffusers lease refer to the rice Engineer s HVAC Handbook for more information on VAV Diffusers. Diffuser Types Ceiling Diffusers Conventional air distribution systems typically group several rooms

More information

Ventilation and Humidity Control in Army Barracks Using DOAS for Better Indoor Air Quality and Energy Conservation

Ventilation and Humidity Control in Army Barracks Using DOAS for Better Indoor Air Quality and Energy Conservation Ventilation and Humidity Control in Army Barracks Using DOAS for Better Indoor Air Quality and Energy Conservation Author:John Vavrin, PE Presenter: Dale Herron US Army Corps of Engineers Engineer Research

More information

State of the art building simulation software... Frenger Radiant chilled beam performance at 1 Shelly St - Sydney

State of the art building simulation software... Frenger Radiant chilled beam performance at 1 Shelly St - Sydney Frenger Radiant chilled beam performance at 3D Model Creation Daylight Analysis Comparison of the performance of various HVAC systems at 1 Shelly St, Sydney VAV fancoil Active chilled beam Passive chilled

More information

2 Existing Mechanical System

2 Existing Mechanical System 2 Existing Mechanical System 2.1 Design Objectives and Requirements The Gossett Field House project consists of a 25,000 sqft addition and a 40,000 sqft renovation of the existing facility for the University

More information

UNDERFLOOR PRODUCTS E3

UNDERFLOOR PRODUCTS E3 UNDERFLOOR PRODUCTS E3 Introduction Introduction Changes in office space usage, sustainable design, and indoor air quality issues have sparked considerable interest in the application of supplying conditioned

More information

Mechanical System Redesign. Dedicated Outdoor Air System. Design Criteria

Mechanical System Redesign. Dedicated Outdoor Air System. Design Criteria Mechanical System Redesign Dedicated Outdoor Air System Design Criteria The outdoor air conditions used were for Philadelphia, Pennsylvania IAP at a 0.4% occurrence. The supply air conditions were developed

More information

Architectural Engineering Senior Thesis Mechanical System Redesign

Architectural Engineering Senior Thesis Mechanical System Redesign Saint Joseph Medical Center Architectural Engineering Senior Thesis Mechanical System Redesign Chris Nicolais Building Description Existing Mechanical System Proposed Redesign Alternative Option Emergency

More information

Linear Floor Heaters

Linear Floor Heaters Linear Floor Heaters The Price Linear Floor Heater family provides ultimate flexibility in terms of style, performance, and ease of installation. Using room-side heat virtually eliminates the requirement

More information

Ball State Architecture ENVIRONMENTAL SYSTEMS 2 Grondzik 1. Contextual Reminder

Ball State Architecture ENVIRONMENTAL SYSTEMS 2 Grondzik 1. Contextual Reminder HVAC DISTRIBUTION and DELIVERY SYSTEMS (Part 2) Ball State Architecture ENVIRONMENTAL SYSTEMS 2 Grondzik 1 Contextual Reminder All-air systems Single zone Terminal reheat Multi-zone Dual-duct VAV Combinations

More information

design brief This design brief provides an introduction into the design and application of DV. It addresses the following issues:

design brief This design brief provides an introduction into the design and application of DV. It addresses the following issues: energydesignresources design brief DISPLACEMENT VENTILATION Summary Displacement ventilation (DV) is an alternate air distribution method for commercial and industrial spaces. 1 Used since the late 1970s

More information

Civil Engineering Building

Civil Engineering Building Continuous Commissioning Report For the Civil Engineering Building Building 492 Submitted to: Utilities Energy Office Physical Plant Department Texas A&M University Prepared by: Energy Systems Laboratory

More information

Challenges and Methods of Estimating a Conceptual HVAC Design

Challenges and Methods of Estimating a Conceptual HVAC Design Challenges and Methods of Estimating a Conceptual HVAC Design ABSTRACT In any conceptual HVAC design, estimators are faced with the challenge of trying to capture all of the pieces that complete a system.

More information

HVAC 101. The Basics of Heating, Ventilation and Air Conditioning

HVAC 101. The Basics of Heating, Ventilation and Air Conditioning HVAC 101 The Basics of Heating, Ventilation and Air Conditioning HVAC Heating, Ventilation and Air Conditioning Provides comfort for people Allows humans to exist under adverse conditions. Comfort Comfort

More information

DX Units. Ranging from 15 to 750 tons and 1,000 to 300,000+ CFM

DX Units. Ranging from 15 to 750 tons and 1,000 to 300,000+ CFM D Units Ranging from 15 to 750 tons and 1,000 to 300,000+ CFM INDUSTRY-LEADING HVAC MANUFACTURER Nortek Air Solutions is the largest custom HVAC manufacturer in North America, with a combined total of

More information

Chilled beams. TRACE 700 incorporates two chilled beam strategies: passive and active.

Chilled beams. TRACE 700 incorporates two chilled beam strategies: passive and active. TRACE 700 incorporates two chilled beam strategies: passive and active. Passive chilled beams consist of a fin-and-tube cooling coil, contained in a housing (or casing), suspended from the ceiling. Chilled

More information

ENGINEERING BULLETIN. Overview of Chilled Beam Technology. Purpose. Summary. Theory

ENGINEERING BULLETIN. Overview of Chilled Beam Technology. Purpose. Summary. Theory Overview of Chilled Beam Technology Purpose Chilled beam technology is new to the United States but has been used in Europe since the 1950 s. Chilled beams can reduce energy costs, improve indoor air quality,

More information

Trane Performance Climate Changer Air Handlers. An air handler for every need.

Trane Performance Climate Changer Air Handlers. An air handler for every need. Trane Performance Climate Changer Air Handlers An air handler for every need. Trane Performance Climate Changer air handlers: designed to optimize your HVAC system. Trane Performance Climate Changer air

More information

Problems Air and Water Distribution Systems

Problems Air and Water Distribution Systems Problems Air and Water Distribution Systems ME419 D. Abata 1. Cooled air at 1 atm, 50 F, and 10% relative humidity is transported in a 600 ft long circular sheet metal duct at a rate of 800 cfm. If the

More information

COMMERCIAL HVAC EQUIPMENT Indoor Self-Contained Units

COMMERCIAL HVAC EQUIPMENT Indoor Self-Contained Units COMMERCIAL HVAC EQUIPMENT Indoor Self-Contained Units Technical Development Program Technical Development Programs (TDP) are modules of technical training on HVAC theory, system design, equipment selection

More information

Select DOAS, Ceiling Radiant Cooling Panel- Chilled Beam Projects. Updated 9/23/2008

Select DOAS, Ceiling Radiant Cooling Panel- Chilled Beam Projects. Updated 9/23/2008 1 Select DOAS, Ceiling Radiant Cooling Panel- Chilled Beam Projects. Updated 9/23/2008 Classroom Building-1, PA Classroom Building-2, PA Classroom Building-2, PA DOAS-Chilled Ceiling Classroom Building-3,

More information

Benefits Offered by Passive Dehumidification Wheel Speed Control

Benefits Offered by Passive Dehumidification Wheel Speed Control Benefits Offered by Passive Dehumidification Wheel Speed Control White paper By John Fischer Benefits Offered by Passive Dehumidification Wheel Speed Control The most significant advantage of the Pinnacle

More information

PRODUCTS TAO TAO PRODUCT: ADVANCING THE SCIENCE OF AIR DISTRIBUTION. temperature ambient optimizer. Redefine your comfort zone.

PRODUCTS TAO TAO PRODUCT: ADVANCING THE SCIENCE OF AIR DISTRIBUTION. temperature ambient optimizer. Redefine your comfort zone. A I R D I S T R I B U T I O N PRODUCTS PRODUCT: TAO TAO temperature ambient optimizer F O C U S 04 ADVANCING THE SCIENCE OF AIR DISTRIBUTION Redefine your comfort zone. www.titus-hvac.com Rethink what

More information

A REASONABLE ALTERNATIVE TO CHILLED BEAMS Dan Int-Hout Chief Engineer

A REASONABLE ALTERNATIVE TO CHILLED BEAMS Dan Int-Hout Chief Engineer Page: 1 of 6 A REASONABLE ALTERNATIVE TO CHILLED BEAMS Dan Int-Hout Chief Engineer The DOAS Fan Powered Terminal Unit Page: 2 of 6 ASHRAE is advocating that energy use in buildings be reduced 30% below

More information

Technical Report Three

Technical Report Three Technical Report Three Existing Conditions for Mechanical Systems Contents Executive Summary...2 Building Overview...2 Mechanical Systems Overview...2 Mechanical System...3 Outdoor & Indoor Design Conditions...3

More information

Continuous Commissioning: A Valuable Partner to Retrofit Projects

Continuous Commissioning: A Valuable Partner to Retrofit Projects Continuous Commissioning: A Valuable Partner to Retrofit Projects Yeqiao Zhu Aamer Athar Kenneth Banks Ph.D. PE, CEM PE, CEM Energy Systems Laboratory Sempra Energy Solutions Sempra Energy Solutions Charles

More information

B. Use UT Austin specifications and equipment schedule format for HVAC equipment where available.

B. Use UT Austin specifications and equipment schedule format for HVAC equipment where available. PART 1: GENERAL 1.01 General Requirements A. This standard is intended to provide useful information to the Professional Service Provider (PSP) to establish a basis of design. The responsibility of the

More information

BES-TECH TECHNOLOGY & SYSTEM INTEGRATION

BES-TECH TECHNOLOGY & SYSTEM INTEGRATION BES-TECH TECHNOLOGY & SYSTEM INTEGRATION BES-TECH TECHNOLOGY & SYSTEM INTEGRATION DIGI-ACC Digi-ACC is a control kit for air cooled chiller systems, optimizing both chiller and pumps thereby reducing consumption

More information

Space Air Diffusion II

Space Air Diffusion II MEBS6008 Environmental Services II http://me.hku.hk/bse/mebs6008/ Space Air Diffusion II Ir. Dr. Sam C. M. Hui Visiting Assistant Professor Department of Mechanical Engineering The University of Hong Kong

More information

Humidity Control Systems for Civil Buildings in Hot Summer and Cold. Winter Zone in China

Humidity Control Systems for Civil Buildings in Hot Summer and Cold. Winter Zone in China Humidity Control Systems for Civil Buildings in Hot Summer and Cold Winter Zone in China Xiaoping Yu Doctoral Candidate Chongqing University of Science & Technology Chongqing, China, 400042 xiaoyup@163.com

More information

CHAPTER 4. HVAC DELIVERY SYSTEMS

CHAPTER 4. HVAC DELIVERY SYSTEMS CHAPTER 4. HVAC DELIVERY SYSTEMS 4.1 Introduction 4.2 Centralized System versus Individual System 4.3 Heat Transfer Fluids 4.4 CAV versus VAV Systems 4.5 Common Systems for Heating and Cooling 4.6 Economizer

More information

Selected Laboratory Energy Efficiency Measures

Selected Laboratory Energy Efficiency Measures Selected Laboratory Energy Efficiency Measures These are some of the most effective energy efficiency measures for laboratories 1. Reduce (optimize) air changes per hour in lab space 2. Design to the proper

More information

VariCool VAV. (Variable Air Volume) 9 to 70 tons Variable Air Volume Water-Cooled and Chilled Water. Unique Solutions for All-Indoor HVAC Projects

VariCool VAV. (Variable Air Volume) 9 to 70 tons Variable Air Volume Water-Cooled and Chilled Water. Unique Solutions for All-Indoor HVAC Projects VariCool VAV (Variable Air Volume) 9 to 70 tons Variable Air Volume Water-Cooled and Chilled Water Unique Solutions for All-Indoor HVAC Projects Water Source Heat Pump Water-Cooled Chilled Water Modular

More information

Trane Performance Climate Changer Air Handlers. An air handler for every need.

Trane Performance Climate Changer Air Handlers. An air handler for every need. Trane Performance Climate Changer Air Handlers An air handler for every need. Trane Performance Climate Changer air handlers: The most comprehensive air-handler portfolio in the industry. The portfolio

More information

Improving Performance with a Building Tune-Up. Janice Peterson, P.E. LEED AP Market Manager, Building Operations BetterBricks

Improving Performance with a Building Tune-Up. Janice Peterson, P.E. LEED AP Market Manager, Building Operations BetterBricks Improving Performance with a Building Tune-Up Janice Peterson, P.E. LEED AP Market Manager, Building Operations BetterBricks How much is too much? Most buildings can cut total energy use by 5-30% while

More information

Chilled Beam and Radiant Cooling Basics. Salt Lake City, UT ASHRAE Chapter December 2013 Nick Searle

Chilled Beam and Radiant Cooling Basics. Salt Lake City, UT ASHRAE Chapter December 2013 Nick Searle Chilled Beam and Radiant Cooling Basics Salt Lake City, UT ASHRAE Chapter December 2013 Nick Searle nsearle@dadanco.com Contents Radiant Ceilings & Chilled Beam Basics Energy & Space Savings First and

More information

APPLICATION GUIDE BEAMS

APPLICATION GUIDE BEAMS BEAMS There is an increasing need for energy efficient air conditioning systems as energy codes become more stringent. Chilled beam systems are one such alternate to traditional all air conditioning systems.

More information

HAP e-help. Modeling Induction Beams in HAP v4.8 QB TIP 001

HAP e-help. Modeling Induction Beams in HAP v4.8 QB TIP 001 This HAP e-help provides a high-level overview of induction beams, how they work and how to model them in HAP 4.8 (and later versions). The first half of the article explains how induction beams work.

More information

ENGINEERING. Edition No. 13 October 2002

ENGINEERING. Edition No. 13 October 2002 Edition No. 13 October 2002 ENGINEERING S Y S T E M S O L U T I O N S W e at McQuay are very proud of our tradition of producing industry leading water source heat pumps. Our heritage stretches back more

More information

The Creative and Performing Arts High School (CAPA) Pittsburgh, PA 11/11/2002 Andrew Tech Mechanical Option Prof. S. A. Mumma

The Creative and Performing Arts High School (CAPA) Pittsburgh, PA 11/11/2002 Andrew Tech Mechanical Option Prof. S. A. Mumma Objectives and Requirements For the Creative and Performing Arts High School (CAPA), the main objective of the mechanical design is to provide an energy efficient system that is easily maintainable and

More information

Modular Active. Chilled. Beams

Modular Active. Chilled. Beams Modular Active Chilled Beams How Twa MAC Beams Work Primary air (100% outside air) is dehumidified to between 50-57 F dew point and is used to: control the latent requirements of the space, provide fresh

More information

General HVAC Recommendations

General HVAC Recommendations General HVAC Recommendations DESIGN GUIDELINES FOR ENERGY EFFICIENT HVAC SYSTEMS Thank you for your interest in energy efficiency! Energy efficient heating, ventilation, and air conditioning (HVAC) equipment

More information

UNIVERSITY OF MISSOURI Heating Ventilating and Air-Conditioning (HVAC) 2016 Q1

UNIVERSITY OF MISSOURI Heating Ventilating and Air-Conditioning (HVAC) 2016 Q1 GENERAL: This section provides general standards for overall sizing and design of Heating, Ventilating, and Air Conditioning (HVAC) systems. Other sections contain specific standards for each system per

More information

T-Series Climate Changer Air Handler. It s Hard To Stop A Trane.

T-Series Climate Changer Air Handler. It s Hard To Stop A Trane. T-Series Climate Changer Air Handler TM It s Hard To Stop A Trane. T-Series Climate Changer Air Handler The Trane tradition of excellence continues with the T-Series Climate Changer air handler. Using

More information

Mechanical Technical Report 1. ASHRAE Standard 62.1 Ventilation Compliance Evaluation

Mechanical Technical Report 1. ASHRAE Standard 62.1 Ventilation Compliance Evaluation Mechanical Technical Report 1 Standard 62.1 Ventilation Compliance Evaluation Lutheran Theological Seminary at Philadelphia The New Learning Center Prepared For: William P. Bahnfleth, Ph.D., P.E. Department

More information

1080 Marina Village Parkway, Suite 501 Alameda, CA (510) Fax (510) HVAC DESIGN INTENT

1080 Marina Village Parkway, Suite 501 Alameda, CA (510) Fax (510) HVAC DESIGN INTENT Taylor Engineering 1080 Marina Village Parkway, Suite 501 Alameda, CA 94501-1142 (510) 749-9135 Fax (510) 749-9136 LLC HVAC DESIGN INTENT PART 1 - GENERAL 1.1 Overview A. The project consists of a 3-story

More information

Making UFAD Systems Work BY STEVEN T. TAYLOR, P.E., FELLOW ASHRAE

Making UFAD Systems Work BY STEVEN T. TAYLOR, P.E., FELLOW ASHRAE his article was published in ASHRAE Journal, March 2016. Copyright 2016 ASHRAE. Posted at www.ashrae.org. his article may not be copied and/or distributed electronically or in paper form without permission

More information

Madeira City Schools Madeira, Ohio. HVAC Assessment. December 2011 (Revised February 2012)

Madeira City Schools Madeira, Ohio. HVAC Assessment. December 2011 (Revised February 2012) Madeira City Schools Madeira, Ohio HVAC Assessment December 2011 (Revised February 2012) Prepared by: CMTA Engineering Consultants, Inc. 10411 Meeting Street Prospect, KY 40059 www.cmtaegrs.com (502) 326-3085

More information

RADIANT COOLING RESEARCH SCOPING STUDY

RADIANT COOLING RESEARCH SCOPING STUDY INTERNAL REPORT APRIL 2006 RADIANT COOLING RESEARCH SCOPING STUDY Timothy Moore, Fred Bauman, and Charlie Huizenga Center for the Built Environment (CBE) University of California, Berkeley April 20, 2006

More information

MID MICHIGAN COMMUNITY COLLEGE HARRISON CAMPUS Harrison, Michigan 2015 MASTER PLAN

MID MICHIGAN COMMUNITY COLLEGE HARRISON CAMPUS Harrison, Michigan 2015 MASTER PLAN MID MICHIGAN COMMUNITY COLLEGE HARRISON CAMPUS Harrison, Michigan 2015 MASTER PLAN September 30, 2015 PBA Project No. 2015.0140.00 PETER BASSO ASSOCIATES INC. CONSULTING ENGINEERS 5145 LIVERNOIS ROAD,

More information

DEMAND CONTROLLED VENTILATION WITHOUT WIRES

DEMAND CONTROLLED VENTILATION WITHOUT WIRES DEMAND CONTROLLED VENTILATION WITHOUT WIRES With increased demand for intelligent climate control systems, more and more HVAC installations deploy VAV/VAQ terminals that allow temperature control in such

More information

Computing Services Center

Computing Services Center Continuous Commissioning Report for the Computing Services Center Building #516 Submitted to: Utilities Energy Office Physical Plant Department Texas A&M University Prepared by: Energy Systems Laboratory

More information

4.0 Mechanical Redesign

4.0 Mechanical Redesign 4.0 Mechanical Redesign As my depth area of research, I have performed a detailed analysis of the existing air handling units and the existing conditions of the FIT Science Lab. After one semester of breaking

More information

Mechanical Redesign, Proposal Elizabeth C. Krauss Mechanical Option September 18, 2013

Mechanical Redesign, Proposal Elizabeth C. Krauss Mechanical Option September 18, 2013 Mechanical Redesign, Proposal Elizabeth C. Mechanical Option September 18, 2013 State Institute of Rehabilitation T e c h n i c a l R e p o r t I 1 Mechanical Redesign, Proposal... 0 Executive Summary...

More information

Dream Big, Think Small: Innovative System Has All

Dream Big, Think Small: Innovative System Has All Page 1 of 5 Home Dream Big, Think Small: Innovative System Has All March 18, 2013 When mechanical engineers, installers, architects, and building owners have the rare luxury of designing a new facility

More information

Chilled beam technology overview John Woollett 1, Jonas Åkesson 2 Swegon AB 1,2

Chilled beam technology overview John Woollett 1, Jonas Åkesson 2 Swegon AB 1,2 Chilled beam technology overview John Woollett 1, Jonas Åkesson 2 Swegon AB 1,2 john.woollett@swegon.se, jonas.akesson@swegon.se SUMMARY The main focus of the paper will be on active beam technology regarding

More information

Zoning System Design Manual

Zoning System Design Manual Zoning Made Effortless 70-2321-03 Introduction The Concept of Zoning The basic principle of forced air zoning is to allow one HVAC system to be controlled by multiple thermostats, heating and cooling a

More information

National Institutes of Health Building 37 Modernization Bethesda, Maryland MECHANICAL DEPTH EXISTING MECHANICAL SYSTEM

National Institutes of Health Building 37 Modernization Bethesda, Maryland MECHANICAL DEPTH EXISTING MECHANICAL SYSTEM MECHANICAL DEPTH EXISTING MECHANICAL SYSTEM The need to maintain occupancy during the renovation and the strict NIH Design Guidelines were the main driving forces behind the design. The mechanical engineering

More information

MECHANICAL SERVICES 101. Ian White

MECHANICAL SERVICES 101. Ian White MECHANICAL SERVICES 101 Ian White Contents 1. Ventilation 2. Heat Gains & Losses 3. Heating Ventilation Air Conditioning (HVAC) Systems What are Building Services Building Services incorporate all aspects

More information

FAN WALL Technology. Product

FAN WALL Technology. Product FAN WALL Technology is a new approach to air handler design using an array of smaller fans to replace a traditional single large fan. FAN WALL Technology This is a fan-array approach to air handler design

More information

SYNOPSIS. Part-Load Control Strategies for Packaged Rooftop Units. In this issue... Bin Hour Profile Charlotte, NC

SYNOPSIS. Part-Load Control Strategies for Packaged Rooftop Units. In this issue... Bin Hour Profile Charlotte, NC VOLUME ONE NUMBER THREE SYNOPSIS A N H V A C N E W S L E T T E R F O R B U I L D I N G O W N E R S A N D M A N A G E R S In this issue... Part-Load Strategies Why they re important.......... 1 What Things

More information

Appendix 13. Categories of Cooling and Heating systems

Appendix 13. Categories of Cooling and Heating systems EcoShopping - Energy efficient & Cost competitive retrofitting solutions for Shopping buildings Co-funded by the European Commission within the 7 th Framework Programme. Grant Agreement no: 609180. 2013-09-01

More information

A Technical Introduction to Cool Thermal Energy Storage Commercial Applications

A Technical Introduction to Cool Thermal Energy Storage Commercial Applications A Technical Introduction to Cool Thermal Energy Storage Commercial Applications Cool Thermal Energy Storage is a new application of an old idea that can cut air conditioning energy costs in half while

More information

Des Places Residence Hall

Des Places Residence Hall Senior Thesis Presentation Duquesne University Pittsburgh, PA Project Team Owner: Duquesne University Architect: WTW Architects Mechanical/Electrical Engineer: CJL Engineering Structural Engineer: Barber

More information

Mechanical Systems Thesis Proposal: Calvert Memorial Hospital Prince Frederick, MD Holly Mawritz

Mechanical Systems Thesis Proposal: Calvert Memorial Hospital Prince Frederick, MD Holly Mawritz : Holly Mawritz Senior Thesis Project Proposal Penn State University Department of Architectural Engineering Mechanical Emphasis Faculty Consultant: Dr. Jim Freihaut 12-10-04 Table of Contents: Executive

More information

Technical Assignment 1

Technical Assignment 1 0 Technical Assignment 1 ASHRAE Standard 62.1 Ventilation and Standard 90.1 Energy Design Evaluations Compliance Analysis David H. Koch Institute for Integrative Cancer Research Massachusetts Institute

More information

REPRODUCTION/DISTRIBUTION IS PROHIBITED. Energy-Savings Strategies for. Rooftop

REPRODUCTION/DISTRIBUTION IS PROHIBITED. Energy-Savings Strategies for. Rooftop Energy-Savings Strategies for Rooftop VAV Systems Occupied set-point temperature Unoccupied set-point temperature Rooftop variable-air-volume (VAV) s are used to provide comfort in a wide range of building

More information

Inffusers. idl20 (2 WAY) ids60 (4 WAY)

Inffusers. idl20 (2 WAY) ids60 (4 WAY) Inffusers idl20 (2 WAY) ids60 (4 WAY) built on innovation what is an inffuser? DADANCO s INFFUSERS are quite simply an induction diffuser that uses special nozzles located in the underside of the air plenum

More information

Inspection Phase Three. Mechanical, Electrical & Plumbing Section 503

Inspection Phase Three. Mechanical, Electrical & Plumbing Section 503 Inspection Phase Three Mechanical, Electrical & Plumbing Section 503 COMCheck Mechanical Field Inspection Checklist Mechanical Mechanical, Electrical & Plumbing Equipment Efficiencies But a lot ore too

More information

Case Study: Furman University Charles H. Townes Center for Science. Michael K. Mantai, PE, CCP President System WorCx

Case Study: Furman University Charles H. Townes Center for Science. Michael K. Mantai, PE, CCP President System WorCx Case Study: Furman University Charles H. Townes Center for Science Michael K. Mantai, PE, CCP President System WorCx AIA Quality Assurance Learning Objectives 1. Case study example of Chilled Beam technology

More information

Retrocommissioning Findings Summary: Building X #1 Priority: Major Comfort/Control Problems

Retrocommissioning Findings Summary: Building X #1 Priority: Major Comfort/Control Problems IMPORTANT NOTICE: This sample document is provided for instructional purposes only. CCC is not rendering advice concerning any commission project or practices. This document is neither approved nor intended

More information

4. OVERVIEW OF MECHANICAL SYSTEM

4. OVERVIEW OF MECHANICAL SYSTEM 4. OVERVIEW OF MECHANICAL SYSTEM The 87,000 SF SLCC is served by six (6) Trane M-Series Climate Changer Air Handing Units (AHUs). Each unit serves a distinct zone within the facility that is unique in

More information

textile air dispersion products

textile air dispersion products DuctSox is the leader in the industry through our commitment to quality, service, and innovation. This allows us to expand our product offering to include textile air dispersion solutions for critical

More information

BOOK 1 OVERVIEW RD2XRT INSTALLATION AND OPERATION MANUAL. Table of Contents ABOUT BOOK 1:

BOOK 1 OVERVIEW RD2XRT INSTALLATION AND OPERATION MANUAL. Table of Contents ABOUT BOOK 1: 4510 Helgesen Drive, Madison, WI, 53718 608.221.4499, 800.627.4499, Fax: 608.221.2824 support@renewaire.com www.renewaire.com RD2XRT INSTALLATION AND OPERATION MANUAL BOOK 1 OVERVIEW ABOUT BOOK 1: This

More information

KLIMA Active Chilled Beams

KLIMA Active Chilled Beams KLIMA 2 600 Active Chilled Beams Index Subject Page Index 1 Introduction 2 General description 3-4 Product features 5-6 Dimensions 7 Performance data 8-11 Section example Guide specifications 13 1 Introduction

More information