Radiant Exchange in Stratified Environments: Considerations and Challenges for Hourly Energy Simulation of UFAD, DV, and Radiant Cooling Systems
|
|
- Simon Lynch
- 5 years ago
- Views:
Transcription
1 Radiant Exchange in Stratified Environments: Considerations and Challenges for Hourly Energy Simulation of UFAD, DV, and Radiant Cooling Systems CBE Timothy Moore CENTER FOR THE BUILT ENVIRONMENT SimBuild August 2006
2 Published methodologies for UFAD and DV
3 Load splits or Plume Factors UFAD and TDV differences in stratification height and gradient based upon Loads and T Airflow rate Coupling with radiant systems Cooling vs. Dead-band vs. Heating modes Radiant and conductive heat transfer to UFAD plenum Radiant exchange (with all view factors accounted for) plus convective heat transfer in radiant cooling applications
4 UFAD and TDV differences in stratification per T
5 Cooling Load splits for UFAD and TDV Apportioning internal loads to return plenum is a good idea, but methods proposed in EDR document need refinement or replacement Assigning occupants to plenum zone w/o fixing OA per zone results in reduction of ventilation rate and related loads One overall split may be adequate for component loads, but needs to vary with system mode (cooling, heating, or dead-band) Differentiation based on system type & configuration (table ) Evolving UFAD version of equest/doe-2 comes closer Cooling, heating, and dead-band plume factors for UFAD or DV Ability to model UFAD supply plenum (including thermal decay) Plume factors can be used for some radiant cooling applications to apportion load to chiller/cooling tower and not airside systems
6 Cooling Load splits for UFAD and TDV Perimeter loads not adequately addressed in EDR guidelines are included in equest-ufad development Existing method would need additional glazing in RA plenum zone Proportionate U-Factors and SHGC adjustment in both added and actual to maintain same loads (but would need to leave T vis in actual glazing unchanged for daylighting) equest-ufad single plume factor for each zone effectively incl. this Need guidance on splits for different diffuser types, blinds, etc. Need guidance re: TDV limitations and variable load splits Not typically recommended for perimeter zones with high loads Maintaining comfort avoiding excessive stratification - requires high airflow or added sensible load removal (e.g., radiant cooling) High airflows = high fan energy & reduced load split (plume factor) Diffuser size limits capacity for high airflows
7 Stratification change with airflow rate Test results for airflow rate with constant load, swirl diffusers, interior zone Height, ft cfm/sq. ft 0.6 cfm/sq. ft 0.3 cfm/sq. ft ASHRAE Std F T 1 0 Still satisfies vertical temperature difference (5 F) with 40% less air Room Temperature, F
8 Cooling Fan energy Fan power reduction for lower static Essential to provide for reduced static pressure set point: e.g., iwc less than OH for some UFAD designs Depends on reduction of ductwork plus air-side load fraction Allow for static pressure reset with load in VAV systems 80% % Fan Power Savings (Relative to Overhead VAV System) 60% 40% 20% Underfloor VAV Low Volume: 90% CFM, 75% FSP Underfloor VAV High Volume: 120% CFM 75% FSP 0% -20% 50% 60% 70% 80% 90% 100% % of Design Load
9 Cooling - Zone equipment Zone equipment needs to be adequately represented Series fan-powered-boxes Perimeter heating by FPB drawing from occupied space vs. plenum Cooling-only boxes for modulating diffuser systems Fan coils or radiant systems for TDV Return Air Plenum No U/A diffusers in perimeter zones Raised Access Floor Return Air Grille T Heating Coil Glazing Fan Coil w/ ECM motor Flex Duct
10 Cooling Economizer Not accounting for thermal decay in UFAD plenum will lead to overestimate of economizer savings Savings for Oakland with AHU supply air temperature (SAT) : 65 F = 83% 60 F = 31% Must account for thermal decay in plenum affect on SAT Decay depends on airflow and plenum configuration Economizer operation also limited in some radiant applications High-capacity panel system +DOAS dehumidification may limit economizer hours in off-design conditions Hours San Francisco Outdoor Temperature Distribution (Dry Bulb temperatures betweeen 8am and 8pm) % Economizer Load Reduction? 2217 Hours 54 Hours Outdoor Dry Bulb Temperature [F]??
11 Heating TDV Separate heating system typically required Baseboards, radiant, or fan coils in perimeter Fan coils ok for interior, but switch to mixed Becomes well-mixed space in heating operation UFAD Need heating options for heating-only fan coils or baseboards Becomes well-mixed space in heating operation
12 Load-Split Plume Factors Proliferation In addition to Cooling, heating, and deadband Case UFAD Core zone, high-throw vs. low-throw diffuser % load to Space UFAD Perimeter, blinds open, high-throw vs. low-throw diffuser UFAD Perimeter, blinds closed UFAD Atrium (two-or-more-story, fully glazed atrium) UFAD with Radiant chilled ceiling (high- T panels vs. low- T overhead slab) TDV Core zone TDV Perimeter (low loads or loads reduced by radiant cooling, or similar) TDV Atrium (two-story fully glazed atrium with chilled slab) Peak solar load Height [ft] Height [m] Height [ft] Blinds open, 8 Linear bar grilles, vanes at cfm/sf Blinds closed, 8 Linear bar grilles, vanes at cfm/sf Room Temperature [ F] INT_8-2 INT_8-3 INT_8-4 INT_8-5 INT_8-6 INT_ Room Temperature [ F]
13 Typical Distribution of Room Cooling Load Heat transfer into SA plenum: UFAD with hung ceiling RA plenum Heat gain into space 100% (internal and perimeter loads) Through slab 24% Through raised floor (mostly radiation from ceiling) 11% Airside Extraction 65% Total into supply plenum ~35% (+/- 5% per airflow rate) Removed from airside (still seen as coil load to maintain SAT at diffuser)
14 Potential for thermal decay in UFAD plenum Initial thermal conditions in UFAD plenum (before implementing spread diffusers on stub ducts) --- Flack+Kurtz CFD modeling
15 Stacked thermal zones simulation approach A commonly used and often recommended approach to modeling stratified environments with geometrically based thermal model + linked inter-zonal bulk airflow model Atria, UFAD, TDV, radiant cooling (radiant designs where downsized airside system leads to thermal stratification)
16 Stacked thermal zones simulation approach Separate RA plenum (if included) and SA plenum zone for UFAD is straightforward Zones linked only by holes or air barriers can be used to represent occupied and stratified sub-zones Loads with appropriate radiant and convective splits can be places in relevant sub-zones Added sub-division of stratified zone improves representation of thermal stratification, but exacerbates fundamental limitation
17 Stacked thermal zones simulation approach Temperature ( F) Temperature ( F) Stacked zones do permit approximation of stratified environments using linked bulk airflow models, however :00 06: Air temperature: 0 Return Air Plenum (ufad - energy pw 3 strat z + occ bot zx - with stub duct.aps) Air temperature: 3 lower Stratified zone (ufad - energy pw 3 strat z + occ bot zx - with stub duct.aps) Air temperature: 6 UFAD Plenum (ufad - energy pw 3 strat z + occ bot zx - with stub duct.aps) Air temperature: 0 Return Air Plenum (ufad - energy pw 3 strat z + occ bot z - with stub duct.aps) Air temperature: 3 lower Stratified zone (ufad - energy pw 3 strat z + occ bot z - with stub duct.aps) Air temperature: 6 UFAD Plenum (ufad - energy pw 3 strat z + occ bot z - with stub duct.aps) Air temperature: 7 Stub Duct to UFAD Pln (ufad - energy pw 3 strat z + occ bot z - with stub duct.aps)
18 Direct-bean solar and LW IR reaching floor Simple shoe-box model used to test effect of stacked zones in geometrically based simulation tools (such as EnergyPlus, iesve, etc.) While there is full accounting for solar radiation and radiant heat transfer between surfaces in a single zone, stacked zones present view-factor issues
19 Limitations of stacked thermal zones approach Floor Surface Temperature Floor Surface Temperature and Incident and Incident Solar Solar Flux FluxReaching the Floor relative to single zone model 2 zones, 4 spaces Solar Flux temp Temperature (F) solar flux (Btu/hr-ft^2) 1 zone, 4 spaces 2 zones, 2 spaces 1 zone, 2 spaces 1 zone, 1 space 0% 20% 40% 60% 80% 100% 120%
20 Possible simulation tool solutions Appropriate dynamic simulation of stratified environments, or those with significant buoyancy-driven thermal convection, where radiant heat transfer is also significant, may be accomplished by: Adding capability for appropriate accounting of solar gains and radiant exchange between surfaces across inter-zonal adjacencies so that inter-zonal airflow models can be employed (i.e., across sub zones) OR Including appropriate multi-node airflow models applicable within a single zone (wherein radiant exchange is properly accounted for by the geometrically based thermal model of that zone) Must either be adaptable to or adjustable for various configurations, or provided in versions for each (e.g., for radiant cooling, DV, UFAD, atria, etc. and various combinations thereof). EnergyPlus UFAD and DV airflow models point to potential paths, but there is much work yet to be done here.
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 informationDisplacement Ventilation
Displacement Ventilation Displacement Ventilation Displacement Ventilation vs. Dilution Ventilation Characteristics Design Considerations Layout and Selection Product Overview Casino Case Study Dilution
More informationDESCRIPTION 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 informationUnderfloor 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 informationRADIANT 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 informationdesign 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 information7. 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 informationHVAC 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 informationIDL20e (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 informationSpace 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 informationHVAC 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 informationASHRAE 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 informationTemperature 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 informationUNDERFLOOR 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 informationENGINEERING 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 informationMaking 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 informationJim 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 informationHigh-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 informationPOTENTIAL AND LIMITATIONS FOR HYDRONIC RADIANT SLABS USING WATERSIDE FREE COOLING AND DEDICATED OUTSIDE AIR SYSTEMS
POTENTIAL AND LIMITATIONS FOR HYDRONIC RADIANT SLABS USING WATERSIDE FREE COOLING AND DEDICATED OUTSIDE AIR SYSTEMS Timothy Moore Center for the Built Environment (CBE), University of California, Berkeley,
More informationUFAD 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 informationBetter 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 informationSummary Comparison of Simulation Program Features
Summary Comparison of Simulation Program Features FEATURE DOE2.2 equest TRACE 700 HAP Public/Proprietary Public Domain Proprietary Proprietary Proprietary Simulation Method 8760 hours 8760 hours 8760 hours
More informationHVAC 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 informationMechanical 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 informationAir Conditioning Clinic
Air Conditioning Clinic VAV Systems One of the Systems Series July 2012 TRG-TRC014-EN VAV Systems One of the Systems Series A publication of Trane Preface VAV Systems A Trane Air Conditioning Clinic Figure
More information1080 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 informationFAST 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 informationChilled 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 informationEnergy Savings Potential of Passive Chilled Beam System as a Retrofit Option for Commercial Buildings in Different Climates
Purdue University Purdue e-pubs International High Performance Buildings Conference School of Mechanical Engineering 2014 Energy Savings Potential of Passive Chilled Beam System as a Retrofit Option for
More informationState 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 informationFORM 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 informationEngineering 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 informationCEE 243. Week 2 HVAC systems at Y2E2
Week 2 HVAC systems at Y2E2 Today s lecture will focus on HVAC systems and the type of systems contained in Y2E2 Basic info about Y2E2 Contains a diverse range of HVAC Systems and zone equipment Introduce
More information4. 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 informationAPPLICATION 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 informationBALANCING ENERGY EFFICIENCY & INDOOR THERMAL COMFORT
BALANCING ENERGY EFFICIENCY & INDOOR THERMAL COMFORT Ashak Nathwani AM Adjunct Senior Lecturer ashak.nathwani@sydney.edu.au PRESENTATION THREE SESSIONS This presentation will be in three parts addressing
More informationAir System Sizing Summary for Lobby System Project Name: Existing Lobby 04/04/2005 Prepared by: psuae
APPENDIX C Air System Sizing Summary for Lobby System Project Name: Existing Lobby 04/04/2005 12:56PM Air System Information Air System Name Equipment Class Air System Type Lobby System CW AHU SZCAV Number
More informationUNIVERSITY 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 informationThe 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 informationCHAPTER 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 informationA 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 informationHVAC Mandatory Provisions Part II, Page 1
HVAC Mandatory Provisions Part II, Page 1 Mandatory Equipment Efficiency Worksheet (6.4.1.1) System Equipment Type Size Category (Tables 6.8.1A through K) Sub-Category or Rating Condition Units of Efficiency
More informationDESIGNING MODULAR VAV SYSTEMS
FORM 5.2 REV 0905 THERMA-FUSER THERMALLY POWERED VAV DIFFUSER DESIGNING MODULAR VAV SYSTEMS MODULAR VAV SYSTEMS The Therma-Fuser diffuser is a simple stand alone device that provides VAV control when supplied
More informationCARRIER edesign SUITE NEWS. Modeling 100% OA Constant Volume Air Systems. Volume 6, Issue 1. Page 1 Modeling 100% OA Constant Volume Air Systems
Volume 6, Issue 1 CARRIER edesign SUITE NEWS Modeling 100% OA Constant Volume Air Systems This article provides an overview of how to model a stand-alone constant air volume (CAV) 100% OA system in HAP.
More informationChilled 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 informationChilled Ceilings / Beams Working Principles & Applications
5 th International Conference on Energy Sustainable Energy Polices and Technologies 15-17 October 2014 Chilled Ceilings / Beams Working Principles & Applications Francis W H Yik ATAL Building Services
More informationAir System Sizing Summary for AHU/CU-1 Project Name: Wilton Manors Fire Station#16 06/26/2016 Prepared by: L.N.I.
Air System Sizing Summary for AHU/CU-1 AHU/CU-1 Floor Area 1678.0 ft² Central Cooling Coil Total coil load 4.8 Tons Total coil load 57.8 MBH Sensible coil load 41.8 MBH Coil CFM at Jul 1500 1909 CFM Max
More informationBall 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 informationphoto by PFC Price Fan Column
photo by www.mrobinsonphoto.com PFC Price Fan Column Typical Applications The Price Fan Column (PFC) is a vertical fan unit designed to discharge into a raised access floor plenum. The unit s compact design
More informationYan Xue 1 and Qingyan Chen 2,1* Abstract
1 2 3 4 5 6 7 8 9 1 11 12 13 14 15 16 17 18 19 2 21 22 23 24 25 26 27 28 29 3 31 32 33 34 35 36 37 38 Xue, Y. and Chen, Q. 214. Influence of floor plenum on energy performance of buildings with UFAD systems,
More informationApacheHVAC User Guide Part F: Loads Analysis and Reporting Tools
ApacheHVAC User Guide Part F: Loads Analysis and Reporting Tools IES Virtual Environment Copyright 2017 Integrated Environmental Solutions Limited. All rights reserved. No part of the manual is to be copied
More informationInffusers. 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 informationResidential ventilation concepts based on the idea of displacement airflow distribution
A strategy for reducing energy demand Student: Aris Gkitzias (I.D:4180380) Mentors: Dr. Regina Bokel, Ir. John van der Vliet MSc graduation project Department of Building Technology, faculty of architecture
More informationPharmaceutical Facility Design
PhEn-602 Pharmaceutical Facility Design J. Manfredi Notes 9A PhEn-602 J. Manfredi 1 Primary & Secondary HVAC units Primary Primary air handling unit arrangement: One unit is responsible for all of the
More information2009 IECC Commercial Mechanical Requirements
BUILDING ENERGY CODES UNIVERSITY 2009 IECC Commercial Mechanical Requirements Ken Baker PNNL-SA-66171 Learning(Objec-ves(( ( 1. Find(minimum(equipment(efficiency(requirements( and(recite(at(least(3(common(terms(for(measuring(
More informationCONSTRUCTION AND ENERGY COSTS FOR RADIANT VS. VAV SYSTEMS
COMPARISON OF CONSTRUCTION AND ENERGY COSTS FOR RADIANT VS. VAV SYSTEMS IN THE CALIFORNIA BAY AREA FINAL REPORT Prepared by Jingjuan Dove Feng, P.E., Senior Engineer Hwakong Cheng, P.E., Principal Prepared
More informationHVAC Controls Upgrades: Requirement Details ( )
REQUIRED CONTROLS/FEATURES To qualify the upgrade must add or substantially modify 3 or more sequences/system capabilities. Also, all sequences and items listed under the required section are needed in
More informationUnderfloor Air Distribution in a Commercial High Rise: The New York Times Headquarters
Underfloor Air Distribution in a Commercial High Rise: The New York Times Headquarters Glenn D. Hughes The New York Times Company Michael C. English, PE, CCP, LEED Horizon Engineering Associates, LLP Synopsis
More informationNOVEMBER 2012 THE EUROPEAN EXPERIENCE
Radiant-cooling systems have progressed in the last few decades, garnering attention as a comfortable and energy- and material-efficient option. 1 Compared with air radiant-cooling hydronic systems use
More informationSystem Components with ` Emphasis on Packaged Rooftop Application and Installation. Jerry Cohen President Jacco & Assoc.
System Components with ` Emphasis on Packaged Rooftop Application and Installation Jerry Cohen President Jacco & Assoc. Agenda Define and relate in practical terms the following components: System Effect
More informationDuct Design and Installation
Duct Design and Installation John Proctor, P.E. Proctor Engineering Group, Ltd. San Rafael, CA 2004 Proctor Engineering Group, Ltd. 1-888-455-5742 mail@proctoreng.com www.proctoreng.com Duct Design ACCA
More informationChilled Beams in Labs Eliminating Reheat & Saving Energy on a Budget
VanceFox.com 2006, American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (www.ashrae.org). Published in ASHRAE Journal Vol. 49, Jan. 2006. For personal use only. Additional reproduction,
More informationIntroduction to HVAC. American Standard Inc Air Conditioning Clinic TRG-TRC018-EN
Introduction to HVAC Agenda Psychrometrics Human Comfort Heat Transfer Refrigeration Cycle HVAC Terminology HVAC Systems Introduction to HVAC Psychrometrics 2000 TRG-TRC002-EN Properties of Air Dry-bulb
More informationTechnical Assignment 3 11/15/04. Executive Summary
Executive Summary This report is an analysis of the existing systems within the Outreach Innovation Building in University Park, PA. One significant design criteria was a lower than average noise criteria
More informationApacheHVAC User Guide. IES Virtual Environment 6.4
ApacheHVAC User Guide IES Virtual Environment 6.4 Contents VE 6.4.0.9 Update 1 Introduction... 8 1.1 What is ApacheHVAC and where does it fit within the Virtual Environment?...8 1.2 ApacheHVAC Interface
More informationDehumidifying 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 informationAugust 15, 2013 Page 1 of 19
Section C401 Application Compliance with C402, C403, C404 and C405 AND (either C406.2, C406.3 or C406.4) Compliance with C402, C403, C404 or C405 Section C402 Building Envelope (Climate Zone 5A) Space-Conditioning
More informationHalton Vario Design Guide
Halton Vario Design Guide Enabling Wellbeing Table of contents 1. Halton Vario - ventilation and air conditioning system overview 3 1.1 Room level, Zonal level and central level 4 1.2 Flexible design and
More informationAppendix 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 informationIRRAD - PHASE II RADIANT COOLING - DESIGNING FOR FLEXIBLE PARTITION OF SPACE
IRRAD - PHASE II RADIANT COOLING - DESIGNING FOR FLEXIBLE PARTITION OF SPACE Cooling System RADIANT COOLING PIPING LAYOUT Proposal for the REHAU core temperature control (CCTC) pipe size: RAUTHERM S 20x2,0mm
More informationAgenda and Objectives
Agenda and Objectives Trane Engineers Newsletter Live Series Rooftop variable-air-volume (VAV) systems are used to provide comfort in a wide range of building types and climates. This ENL discusses HVAC
More informationIAQ 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 informationRADIANT COOLING SYSTEMS OPPORTUNITIES FOR RADIANT COOLING IN NORTH AMERICAN CONSTRUCTION DALE HANSCOMB, REHAU Sales Manager Building Technology
RADIANT COOLING SYSTEMS OPPORTUNITIES FOR RADIANT COOLING IN NORTH AMERICAN CONSTRUCTION DALE HANSCOMB, REHAU Sales Manager Building Technology www.rehau.com Construction Automotive Industry LEARNING OBJECTIVES
More informationEADQUARTERS. Technical Report One. Stephanie Kunkel Mechanical Option
EADQUARTERS 707 N. Calvert St. Technical Report One ASHRAE Standard 62.1 Ventilation ASHRAE Standard 90.1 Energy Design Stephanie Kunkel www.engr.psu.edu/ae/thesis/portfolios/2011/slk5061 Mechanical Option
More informationThe School District of Philadelphia Administration Headquarters Shell and Core Renovations 440 North Broad Street Philadelphia, PA
2.0 Depth Work - Alternative Mechanical Designs 2.1 Objectives The goal of designing alternative systems is to compare energy usage, system costs, emissions, lost rentable space, and constructability.
More informationINTRODUCTION TO: ASHRAE STANDARD 90.1, HVAC System Requirements for Reducing Energy Consumption in Commercial Buildings
INTRODUCTION TO: ASHRAE STANDARD 90.1, 2013 HVAC System Requirements for Reducing Energy Consumption in Commercial Buildings Rocky Mountain ASHRAE Technical Conference, April 29, 2016 SEAN BEILMAN, P.E.,
More informationApacheHVAC in VE 2012
ApacheHVAC in VE 2012 Cooling tower loop Condenser water loop Electric water cooled chiller Chilled water loop Open cooling tower Towb L T 1 T lct V c Compressor T let V e Cooling tower loop pump Water-to-water
More informationCARRIER edesign SUITE NEWS. Interpreting High (Low) Peak Design Airflow Sizing Results for HVAC. Equipment Selection.
Volume 5, Issue 1 CARRIER edesign SUITE NEWS Interpreting High (Low) Peak Design Airflow Sizing Results for HVAC Equipment Selection A design challenge sometimes occurs when computing design loads using
More informationLife Safety Damper Installation ASHRAE St Louis Chapter Feb. 9,2015. Peter McDonnell, PE, LEED AP BD+C McClure Engineering
Life Safety Damper Installation ASHRAE St Louis Chapter Feb. 9,2015 Peter McDonnell, PE, LEED AP BD+C McClure Engineering UL DAMPER TEST STANDARDS UL 555 - FIRE DAMPERS UL555S SMOKE DAMPERS UL555C CEILING
More informationDisplacement 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 informationSelected 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 informationUnderfloor Air Conditioning in North America David Arnold Troup Bywaters + Anders/ Director and Regional Chair ASHRAE Region at Large
CIBSE/ASHRAE Group Meeting 08 December 2004 Underfloor Air Conditioning in North America David Arnold Troup Bywaters + Anders/ Director and Regional Chair ASHRAE Region at Large UFAC/UFAD in North America
More informationHAP 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 informationRadiant Cooling Nonresidential HVAC Stakeholder Meeting #2
1 Radiant Cooling Nonresidential HVAC Stakeholder Meeting #2 California Statewide Utility Codes and Standards Program Abhijeet Pande Heschong Mahone Group, Inc. Kristin Heinemeier Western Cooling Efficiency
More informationmaximize 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 informationSenior 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 informationEarthWise System Seminar
EarthWise System Seminar Tim Gasper, P.E. Solutions Engineer Brady-Trane Services, Inc. EarthWise Systems? Energy Efficiency Emissions Buildings use 39% of the Primary Energy Consumed in the United States
More informationHVAC Controls Upgrades: Requirement Details ( )
REQUIRED CONTROLS/FEATURES HVAC non CENTRAL PLANT 1) Zone Level Scheduling & Override for all air handlers (supply and exhaust) to match occupied hours by zone DDC or occupancy sensors (OS) allowed. (403.2.4.3,
More information4-Pipe VAV vs. Active Chilled Beams for Labs
Steven T. Taylor 4-Pipe VAV vs. Active Chilled Beams for Labs BY STEVEN T. TAYLOR, P.E., FELLOW ASHRAE Variable air volume (VAV) laboratory HVAC systems, including VAV fume hoods, are now standard practice
More informationWhy Doesn t My HVAC System Work?
Why Doesn t My HVAC System y y y Work? Defining Not Working Too hot and humid in the Summer-- Maybe the whole house, or just certain rooms. Too cold in the Winter Goldilocks and the three bears problem--
More informationSingle 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 information97.501B. Prepared by: (415) Sponsored By: Final Report. Author: Presented at: ASHRAE. Meeting SF Me!
97.501B Prepared by: Proctor Engineering Group, Ltd. San Rafael, CA 94901 (415) 451-24800 Monitored In-Situ Performance of Residential Air-Co onditioning Systems Sponsored By: Arizona Public Service Company
More informationImproving 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 informationIntermediate framed denotes standard framing 16 inches on center with headers insulated with a minimum of R-10 insulation.
CITY OF PORT ORCHARD Permit Center Office located at 720 Prospect Street Mailing address: 216 Prospect Street Pt Orchard, WA 98366 (360) 874-5533 permitcenter@cityofptchard.us RESIDENTIAL ENERGY CODE WORKSHEET
More informationSUPPORTING DOCUMENT RESIDENTIAL ENERGY CODE WORKSHEET (2015) EFFECTIVE JANUARY 1, 2017
SUPPORTING DOCUMENT RESIDENTIAL ENERGY CODE WORKSHEET (2015) EFFECTIVE JANUARY 1, 2017 The Residential Energy Code Worksheet is a tool to help you plan your energy code needs for new or remodeled homes,
More informationApacheHVAC User Guide Part B: Equipment, Loops, Components, and Controls
ApacheHVAC User Guide Part B: Equipment, Loops, Components, and Controls IES Virtual Environment Copyright 2017 Integrated Environmental Solutions Limited. All rights reserved. No part of the manual is
More informationNEW AR-L AR-C AND HIGH-CAPACITY LINEAR COOLING PANELS. Higher energy efficiency. Increased thermal comfort
NEW AR-C AND HIGH-CAPACITY LINEAR COOLING PANELS Higher energy efficiency Increased thermal comfort Higher capacity than standard radiant ceilings Significant space savings Reduced new construction costs
More informationWelcome. High Performance Mechanicals for Houses That Work. Energy Design Conference - Duluth, MN. February 21 st, 2018
Welcome High Performance Mechanicals for Houses That Work Energy Design Conference - Duluth, MN February 21 st, 2018 Local Sponsor EEBA National Education Partners CEU s 4 In accordance with the Department
More informationMODELING OF THE SINGLE COIL, TWIN FAN AIR-CONDITIONING SYSTEM IN ENERGYPLUS
MODELING OF THE SINGLE COIL, TWIN FAN AIR-CONDITIONING SYSTEM IN ENERGYPLUS Clayton Miller 1,* and Chandra Sekhar 1 1 National University of Singapore, Singapore * Corresponding email: miller.clayton@nus.edu.sg
More informationThe School District of Philadelphia Administration Headquarters
Jayme Antolik Architectural Engineering Mechanical Option Senior Thesis 2006 Presentation Outline Reason for Renovations School District Administration Relocation Previous to move Originally in 4 offices
More information