FORCED AIR CONVECTION THERMAL SWITCH CONCEPT FOR RESPONSIVE SPACE MISSIONS
|
|
- Kellie Andrews
- 5 years ago
- Views:
Transcription
1 FORCED AIR CONVECTION THERMAL SWITCH CONCEPT FOR RESPONSIVE SPACE MISSIONS 6 August 26 2 th AIAA/USU Small Sat Conference Andrew D. Williams Air Force Research Laboratory, Space Vehicles Directorate Kirtland AFB, NM Dr. Scott E. Palo University of Colorado, Department of Aerospace Engineering Sciences
2 Overview The Problem in a Nutshell Study Approach Forced Air Convection Thermal Switch Concept Hot Case Design Cold Case Design Summary of Subsystem Design Future Work
3 The Problem in a Nutshell Challenges - No clear ORS definition - Requirements vacuum Orbits? Payloads? Components? Pre-built satellites in a warehouse - Short tactical timelines Trade-offs - Mass is no longer THE driver - Time is the primary driver - Cost is the secondary driver Things we do know - Relegated to smallish satellites <4 kg - Must be fast and affordable Modular satellites How do you design a TCS under these parameters?
4 Study Approach Some system detail is required to begin TCS design Current ORS limitation is to 4 kg satellites Used this limitation to determine what capabilities a small satellite can provide - Developed a baseline low capability bus (LCB) - Developed a much higher capability bus (HCB) - LCB and HCB represent the upper and lower design bounds Evaluated all circular LEO orbits to determine the absolute worst hot and cold environments Literature search to investigate relevant technologies Developed busy, subsystem, and component models to compare passive conduction based approach to Forced Air Convection Thermal Switch (FACTS) approach
5 Summary of Bus Capabilities Subsystem Capability Nominal Power Size Low capability bus [kg] [W] [cm] Minimum capability required Qty Mass ADC -5 attitude control x 24 x 2 TTC Mbs, S-band transmitter x 9.6 x 7.2 NG 2 channel GPS receiver x 4.5 x. CDH Plug-n-play USB architecture x 25 x 2 PM 5 W, 3J array, PPT system x 23 x 2 Structure Al Honeycomb Panels 2.5 n/a 27 x 4.5 x 7 xx x 4.5 x 7 Propulsion Not applicable High capability system Higher capability system for more demanding missions Not the end all be all solution but the 8% solution Represents the upper bound of the design regime Subsystem for broad reaching utility Baseline entry level position Represents the lower bound of the design regime Capability Nominal Power Size [kg] [W] [cm] Qty Mass ADC. - attitude control x 35 x 22 TTC 274 Mbs, Ku-band transmitter x 25 x 5 NG 2 channel GPS receiver x 4.5 x. CDH Plug-n-play USB architecture x 25 x 2 PM 5 W, 3J array, PPT system x 23 x 2 Structure Al Honeycomb Panels 38.6 n/a 52 x 4.5 x 7 xx x 4.5 x 7 Propulsion Not applicable
6 FACTS Concept Forced Air Convection Thermal Switch (FACTS) Concept. Subsystems separated into hermetically sealed enclosures - Easy to swap out subsystems to provide different capabilities - Subsystem enclosure is isolated from base plate - Subsystems are pre-engineered - Short timeline thermal design is to balance subsystem heat loads at the subsystem enclosure level and not all of the components ADC PM C&DH C&DH ADC NG TTC PM2 NG TTC PM
7 FACTS Concept Forced Air Convection Thermal Switch (FACTS) Concept 2. Add a DC axial fan and a finned heat exchanger (HX) to the system - Fan is used to vary the heat transfer rates between the hot and cold cases - Finned HX significantly increases the heat transfer rate - Thermally isolated hermetic seal to minimize conduction through the - enclosure to the bus structure Minimize radiation by using low emissivity surface coatings Enclosure Legacy Interface Board Interstitial Material Processor Board Mounting Flange Finned HX Base Plate
8 Pros and Cons Advantages - Heat switch operation w/o the problems of conduction heat switches - Very lightweight; good reliability on the fan for short lifetimes - Higher heat transfer rates than conduction alone - Sealed enclosure reduces clean room requirements in depot environment - Thermal joint requirements are reduced - Modular approach; simply swap subsystems Disadvantages - Multiple single point failure - locations Added enclosure mass required to contain 5 psi internal pressure Nitrogen compatible hermetic seal Increased power requirements Adds complexity to the ADC
9 Hot Case Design Effect that Adding a Finned Heat Exchanger has on the Convection Coefficient Convection Coefficient [W/m^2-K] CDH Finned Heat Exchanger CDH Bare Aluminum Base Plate PM Bare Aluminum Base Plate Flow Rate [CFM] Two rows of cm tall fins with a spacing of.5 cm Heat exchanger pushes flow into the turbulent regime 35 4
10 Hot Case Design The Effect that Adding a Finned Heat Exchanger to the Base Plate has on the Maximum Temperature of the CDH 42 With Finned Heat Exchanger Bare Aluminum Base Plate Maximum Temperature [K] Flow Rate [CFM] Point of diminishing returns on the system Between and 5 CFM the heat transfer rate of the finned HX exceeds that of the base plate
11 Adding Fins to the Enclosure Heat transfer from the components can be increased by adding fins to the other walls of the enclosure - Takes advantage of conduction from the components to the enclosure - Additional fins increase the heat transfer surface area - Reduces importance of component thermal design 37 Finned Heat Exchanger on Base Plate Only Additional Fins on Other Enclosure Walls Maximum Temperature [K] Flow Rate [CFM]
12 Cold Case Design Isolate enclosure - Maximizes switching - Minimizes heater power Interface conductivity - 5 W/m2-K better - W/m2-K adequate Joint configuration - O-ring or Teflon energized hermetic seal - Felt interstitial material - 5 mm Teflon spacer - Isolate bolts with Teflon sleeves and washers Enclosure Mounting Flange Interstitial Material Contact Resistance Material Resistance R= R= Base Plate Contact Resistance Subsystem LCB ADC CDH PM TTC HCB ADC CDH PM TTC AK int R= L AK AK int Heat Load [W] Surface Area [m^2] Power Joint Density Conductivity [W/m^2] [W/m^2-K]
13 Subsystem Design Using FACTS The optimal flow rate is 5 CFM - Flow rate can be increased to 4 CFM to maximize heat transfer - Better approach is to reduce the enclosure interface temperature Bare aluminum enclosures used; heater power can be added to subsystems that are at the edge of the lower temperature limit Conservative conductance ratio of 69: using FACTS - Conservative because different contact areas between on and off - Actual performance is dependent on the base plate area Parameter Variable Value Units 5.8 FHE Area Multiplier CFHE Convection Coefficient at 5 CFM h 57.8 W/m^2-K Convection Coefficient at 4 CFM h 236 W/m^2-K Base Plate Thickness L.635 m Conductivity of Aluminum Kal 85 W/m-K KJ 435 W/m^2-K Base Plate Interface Conductivty
14 Future Work Design, prototype, and test a thermally isolative dry nitrogen hermetic seal The primary requirements for the seal are: - Provide a joint conductivity of 5 W/m2-K - Provide a hermetic seal - Maintain an internal pressure of atm in a vacuum - Be compatible with dry nitrogen - Survive the space environment for an absolute minimum duration of one month without significant degradation or failure Investigate lightweight enclosure designs that are capable of withstanding an internal pressure of atm in a vacuum with minimal deflection Build a prototype/mock CDH subsystem assembly and test it in a thermal vacuum chamber to validate thermal model
15 Questions???
THERMAL VACUUM TESTS OF A FIVE WATT PSEUDO CHIP SEM-X ELECTRONIC MODULE CLAMPED IN A SATELLITE BOX
IN A THERMAL VACUUM TESTS OF A FIVE WATT PSEUDO CHIP SEM-X ELECTRONIC MODULE CLAMPED IN A SATELLITE BOX William H. Greenwood and Ronald L. Akau Sandia National Laboratories PO Box 5800 Albuquerque, New
More information88MLV Series Open Channel Modular UV Systems
88MLV Series Open Channel Modular UV Systems Series description Modular 88MLV series is based on up-to-date high output amalgam lamps and designed for installation into open channels for wastewater disinfection.
More informationLoop Heat Pipe Radiator Trade Study for the K Temperature Range
Loop Heat Pipe Radiator Trade Study for the 300-550 K Temperature Range William G. Anderson 1 and Walter Bienert 2 1 Advanced Cooling Technologies, 1046 New Holland Ave., Lancaster, PA 17601 2 Consultant,
More informationTECHNICAL GUIDE SPLIT-SYSTEM AIR-COOLED EVAPORATOR BLOWER 25, 30, 40 & 50 TON LA300, LB360, 480 & 600 (50 Hz) PROVEN PERFORMANCE GENERAL FEATURING
TECHNICAL GUIDE SPLIT-SYSTEM AIR-COOLED EVAPORATOR BLOWER 25, 30, 40 & 50 TON LA300, LB360, 480 & 600 (50 Hz) PROVEN PERFORMANCE GENERAL The LA/LB line is a flexible performer. LA300, LB360 & 480 can be
More informationA STUDY ON COMPACT HEAT EXCHANGERS AND PERFORMANCE ANALYSIS
A STUDY ON COMPACT HEAT EXCHANGERS AND PERFORMANCE ANALYSIS V. BHOGESWARA RAO Research Scholar Email:pallivayala@gmail.com Dr. S. CHAKRADHAR GOUD Principal, Sri Sarada Institute of Science and Technology
More informationThe FireBird mission - a scientific mission for Earth observation and hot spot detection
The FireBird mission - a scientific mission for Earth observation and hot spot detection Terzibaschian, Thomas Reile, H., Lorenz, E. DLR, Germany 9th IAA SYMPOSIUM ON SMALL SATELLITES FOR EARTH OBSERVATION,
More informationRemote Helium Cooling Loops for Laboratory Applications
Remote Helium Cooling Loops for Laboratory Applications T. Trollier, J. Tanchon, Y. Icart, A. Ravex Absolut System SAS Meylan 38240 FRANCE ABSTRACT In order to provide high cooling capacity to vibration
More informationTWO-PHASE MICRO-CHANNEL HEAT SINK FOR SPACE CRAFT THERMAL CONTROL
TWO-PHASE MICRO-CHANNEL HEAT SINK FOR SPACE CRAFT THERMAL CONTROL Vance K. Hashimoto Department of Mechanical Engineering University of Hawai i at Mānoa Honolulu, HI 96822 ABSTRACT The increasing requirements
More informationSensor Grand Challenges: An NVESD Perspective
Approved for public release; distribution is unlimited Sensor Grand Challenges: An NVESD Perspective James D. Howe U. S. Army NVESD 23 February 1999 Form SF298 Citation Data Report Date ("DD MON YYYY")
More informationOptimization of Various Thermal Management Techniques for High Thermal Loads
SSC10-VII-4 Optimization of Various Thermal Management Techniques for High Thermal Loads Carl Schwendeman Texas A&M University College Station, Texas;(830)-285-9646 carlsch_005@yahoo.com Rebecca Hay Texas
More informationHot Reservoir Stainless-Methanol Variable Conductance Heat Pipes for Constant Evaporator Temperature in Varying Ambient Conditions
Joint 18th IHPC and 12th IHPS, Jeju, Korea, June 12-16, 2016 Hot Reservoir Stainless-Methanol Variable Conductance Heat Pipes for Constant Evaporator Temperature in Varying Ambient Conditions Jens Weyant
More informationPerformance of Evacuated Flat- Plate Solar Collectors Integrated with Thermal Energy Storage Systems
Performance of Evacuated Flat- Plate Solar Collectors Integrated with Thermal Energy Storage Systems Paul Henshall, Philip Eames CREST @ Loughborough University 1 Project Introduction Project: High Performance
More informationCHOOSING THE RIGHT COOLING METHODOLOGY
ABOUT ATRENNE INTEGRATED SOLUTIONS is a vertically-integrated, component and system provider serving aerospace, defense, computing, communications, and other technology-driven industries. delivers integrated
More informationAn ultra-low vibration cryocooling kit based on a miniature Rotary Compressor
SSC15-IV-9 An ultra-low vibration cryocooling kit based on a miniature Rotary Compressor Olly Dmitriev, Eugene Tabota, Professor Ian Arbon EurIng, CEng, FIMechE VERT Rotors UK Limited 12 Miller Row, Edinburgh
More informationCHAPTER 7 COMPARISON OF HEAT EXCHANGERS
168 CHAPTER 7 COMPARISON OF HEAT EXCHANGERS Heat exchangers may be classified according to their flow arrangement. In parallel flow heat exchangers, the two fluids enter the exchanger at the same end,
More informationVacuum drying oven for non-flammable solvents
VD series 53 Vacuum drying ovens Vacuum drying oven for non-flammable solvents A BINDER vacuum drying oven of the VD series is impressive while gently drying with its homogeneous temperature distribution.
More informationThermal management architectures for rack based electronics systems. Sukhvinder Kang, David Miller Aavid Thermalloy, Concord NH, USA
Thermal management architectures for rack based electronics systems Sukhvinder Kang, David Miller Aavid Thermalloy, Concord NH, USA 2011 MEPTEC HEAT IS ON SYMPOSIUM, SAN JOSE, March 21-22, 2011 Abstract
More informationWEDECO Quadron UV System
WEDECO Quadron UV System reliable UV disinfection from every angle WEDECO Quadron UV System The deactivation of bacteria, viruses and parasites with the help of ultraviolet (UV) light is a triedand-tested
More informationExperimental Analysis of Open, Simple and Modified Greenhouse Dryers for Drying Potato Flakes under Forced Convection
RESEARCH ARTICLE OPEN ACCESS Experimental Analysis of Open, Simple and Modified Greenhouse Dryers for Drying Potato Flakes under Forced Convection Tanuj Kumar Sahu 1, Vishal Gupta 2, Ajay Kumar Singh 3
More informationLOW RECIRCULATION RATE EVAPORATORS
WHITE PAPER LOW RECIRCULATION RATE EVAPORATORS Written by: Jeff Welch President Welch Engineering Corporation Abstract Fin coil evaporators with enhanced internal tube surfaces allow for optimum performance
More informationObstructions and ESFR Sprinklers Phase 2 FINAL REPORT
Obstructions and ESFR Sprinklers Phase 2 FINAL REPORT PREPARED BY: Garner A. Palenske, P.E., and William N. Fletcher, P.E. Aon Fire Protection Engineering San Diego, CA, USA September 2015 Fire Protection
More informationinter.noise 2000 The 29th International Congress and Exhibition on Noise Control Engineering August 2000, Nice, FRANCE
1 inter.noise 2000 The 29th International Congress and Exhibition on Noise Control Engineering 27-30 August 2000, Nice, FRANCE I-INCE Classification: 1.0 STUDY OF AEROACOUSTIC PHENOMENONS AT DUCTED COOLING
More informationDesign Optimization of Variable Geometry Microchannel Heat Exchangers
Purdue University Purdue e-pubs International Refrigeration and Air Conditioning Conference School of Mechanical Engineering 2014 Design Optimization of Variable Geometry Microchannel Heat Exchangers Long
More informationExperimental Study on Match for Indoor and Outdoor Heat Exchanger of Residential Airconditioner
Purdue University Purdue e-pubs International Refrigeration and Air Conditioning Conference School of Mechanical Engineering 2014 Experimental Study on Match for Indoor and Outdoor Heat Exchanger of Residential
More informationFinned Heat Sinks for Cooling Outdoor Electronics under Natural Convection
Finned s for Cooling Outdoor Electronics under Natural Convection Lian-Tuu Yeh, Ph D & PE Thermal Consultant, Dallas, TX, 75252 USA Abstract For tower or poled mounted electronics, the heat sink weight
More informationThermal and fluid dynamic analysis of the air cooling/conditioning on board of MDS (Mice Drawer System) facility
Thermal and fluid dynamic analysis of the air cooling/conditioning on board of MDS (Mice Drawer System) facility MDS main features: MICE DRAWER SYSTEM Facility dedicated to experiment on mice strains able
More informationAssessment of Domestic Evacuated Tube. Direct Solar Water Heater
Assessment of Domestic Evacuated Tube Direct Solar Water Heater Abstract F. Kamel 1, Paul Wilson 1 1 Renewable Energy Research Laboratory 2 School of Electrical&Computer Engineering, Faculty of Applied
More informationNatural Convection Heat Transfer Augmentation from Heat Sinks using Perforated Fins: A Review
(JMSME) Print ISSN : 2339-9095; Online ISSN : 2393-9109; Volume 2, Number 6; April June, 2015 pp 80 84 Krishi Sanskriti Publications http://www.krishisanskriti.org/jmsme.html Natural Convection Heat Transfer
More informationRIGID DC LIQUID CHILLER
RIGID DC LIQUID CHILLER Phone: +86-579-8837-9768 Email:info@rigidhvac.com Website: www.rigidchill.com 1 1. WHAT S LIQUID CHILLER? Liquid Chiller cooling refers to cooling by means of the convection or
More informationFike set out to develop a better understanding of the power density trends in data centers around the world.
Fike set out to develop a better understanding of the power density trends in data centers around the world. We wanted to learn how increasing power density translates into energy augmented combustion.
More informationSEL Arc-Flash Solutions
SEL Arc-Flash Solutions Arc-Flash Protection at the Speed of Light Protect personnel and equipment Detect arc-flash events and send a trip signal in as little as 2 ms to enhance safety and minimize equipment
More information"COP Enhancement Of Domestic Refrigerator By Sub cooling And Superheating Using Shell &Tube Type Heat Exchanger"
"COP Enhancement Of Domestic Refrigerator By Sub cooling And Superheating Using Shell &Tube Type Heat Exchanger" 1 Prof.Gaffar G.Momin, 2 Sagar B. Tupe, 2 Swapnil A. Parate 2 Omkar G. Yewale 2 Aakash P.
More informationTECHNICAL GUIDE SPLIT-SYSTEM AIR-COOLED EVAPORATOR BLOWER 25, 30, 40 & 50 TON LA300, LB360, 480 & 600 PROVEN PERFORMANCE GENERAL FEATURING
TECHNICAL GUIDE SPLIT-SYSTEM AIR-COOLED EVAPORATOR BLOWER 25, 30, 40 & 50 TON LA300, LB360, 480 & 600 PROVEN PERFORMANCE GENERAL The LA/LB line is a flexible performer. LA300, LB360 & 480 canbepositionedinupto12differentpositionsandsuspended
More informationGATEKEEPER GAS PURIFICATION SYSTEM DX SERIES FOR 20, 30, 50 AND 60 NM 3 /HR
ELECTRONIC MATERIALS GATEKEEPER GAS PURIFICATION SYSTEM DX SERIES FOR 20, 30, 50 AND 60 NM 3 /HR Continuous flow, point-of-use purified CO 2 gas at a low cost of ownership continuous flow, point-of-use
More informationCOOLING OF DESKTOP COMPUTER USING HEAT PIPES
Proceedings of the International Conference on Mechanical Engineering 07 (ICME07) 29-31 December 07, Dhaka, Bangladesh ICME07- COOLING OF DESKTOP COMPUTER USING HEAT PIPES Tanvir Reza Tanim, Tanvir Hussain,
More informationExperimental Research and CFD Simulation on Microchannel Evaporator Header to Improve Heat Exchanger Efficiency
Purdue University Purdue e-pubs International Refrigeration and Air Conditioning Conference School of Mechanical Engineering 2006 Experimental Research and CFD Simulation on Microchannel Evaporator Header
More informationFigure 1: Overview of Rovinari Power Station FGD project planned situation.
Wet Position Booster Fans for Reduced Power Consumption and Optimized Environmental Performance of Power Stations with FGD and Wet Stack Lewis Maroti and David Anderson, Alden Research Laboratory Marco
More informationSpace-grade 3D Metal Printed Heat Exchangers
Space-grade 3D Metal Printed Heat Exchangers Justin Wenning, Production Engineer Fabrisonic LLC Why 3D Printed Heat Exchangers? NASA s Jet Propulsion Laboratory (JPL) constantly makes headlines with its
More informationThe Basics of Package/Device Cooling
The Basics of Package/Device Cooling Various cooling methods are available for keeping electronic devices within their operating temperature specifications. Cooling Consumer Products In the case of consumer
More informationSEL Arc-Flash Solutions
SEL Arc-Flash Solutions Arc-Flash Protection at the Speed of Light Protect personnel and equipment. Detect arc-flash events and send a trip signal in as little as 2 ms to enhance safety and minimize equipment
More informationEXPERIMENTAL PERFORMANCE ANALYSIS OF SOLAR AIR HEATER WITH THREE DIFFERENT MODIFICATIONS IN ABSORBER PLATE
EXPERIMENTAL PERFORMANCE ANALYSIS OF SOLAR AIR HEATER WITH THREE DIFFERENT MODIFICATIONS IN ABSORBER PLATE ABSTRACT: 1 Chandan Kumar, 2 Hari Singh 1,2 Mechanical Engineering dept, Gyan Vihar University,
More informationWET POSITION BOOSTER FANS FOR REDUCED POWER CONSUMPTION AND OPTIMIZED ENVIRONMENTAL PERFORMANCE OF POWER STATIONS WITH FGD AND WET STACK
WET POSITION BOOSTER FANS FOR REDUCED POWER CONSUMPTION AND OPTIMIZED ENVIRONMENTAL PERFORMANCE OF POWER STATIONS WITH FGD AND WET STACK Authors: Lewis Maroti and David Anderson Alden Research Laboratory,
More informationAir Handling Units. Ranging from 15 to 2,000+ tons and 500 to 400,000+ CFM
Air Handling Units Ranging from 15 to 2,000+ tons and 500 to 400,000+ CFM THE NORTEK AIR SOLUTIONS AIR HANDLER ADVANTAGE Nortek Air Solutions is the largest custom HVAC manufacturer in North America, with
More informationAir treatment solutions. Aftercoolers & condensate treatment
Air treatment solutions Aftercoolers & condensate treatment RELIABLE AND CLEAN AIR Atlas Copco aftercoolers and condensate treatment The air that leaves a compressor reaches 100% humidity. It also contains
More informationExperimental Assessment of the Thermal Performance of Storage Canisterm01d ing Fix ture Conj?gurations
LA-3376-MS UC-722 ssued: November 997 Experimental Assessment of the Thermal Performance of Storage Canisterm0d ing Fix ture Conj?gurations for the Los Alamos Nuclear Materials Storage Facility John D.
More informationOIL AND GAS INDUSTRY
FIRED HEATER DESIGN This case study demonstrates the implementation of an API 560 fired heater compound component in Flownex. It also shows how Flownex has been used during the process design and preliminary
More informationijcrr Vol 04 issue 07 Category: Research Received on:06/02/12 Revised on:17/02/12 Accepted on:02/03/12
EXPERIMENTAL ANALYSIS OF THE EFFECT OF FIN GEOMETRY ON HEAT TRANSFER RATE THROUGH THE REFRIGERATOR CONDENSER ijcrr Vol 04 issue 07 Category: Research Received on:06/02/12 Revised on:17/02/12 Accepted on:02/03/12
More informationApplication of two hybrid control methods of expansion valves and vapor injected compression to heat pumps
AM-4249223-1 - Application of two hybrid control methods of expansion valves and vapor injected compression to heat pumps Christian K. Bach, Graduate Student, Eckhard A. Groll, Reilly Professor, James
More informationModifications and Improvements to the NPDGamma Liquid Hydrogen Target System and Safety
Modifications and Improvements to the NPDGamma Liquid Hydrogen Target System and Safety Prepared: H. Nann, Indiana University, November 01, 2011 Checked: S. Penttila, ORNL, November 01, 2011 Approved:
More informationOptiVenn TM Series INDUSTRIAL UV SYSTEMS. High performance, cost-effective system for stringent Industrial applications
INDUSTRIAL UV SYSTEMS OptiVenn TM Series High performance, cost-effective system for stringent Industrial applications 4040 Norex Drive, Chaska MN 55318 phone: 952.448.4412 fax: 952.448.6180 sales@smithengineeringinc.com
More informationW. W. Hansen Experimental Physics Laboratory STANFORD UNIVERSITY STANFORD, CALIFORNIA Gravity Probe B Relativity Mission
W. W. Hansen Experimental Physics Laboratory STANFORD UNIVERSITY STANFORD, CALIFORNIA 94305-4085 Gravity Probe B Relativity Mission UV CHARGE CONTROL COMMISSIONING PROCEDURE FOR SM GYROSCOPES GP-B P0203
More informationHealthy Buildings 2017 Europe July 2-5, 2017, Lublin, Poland. Experimental study of a novel dew point indirect evaporative cooler
Healthy Buildings 2017 Europe July 2-5, 2017, Lublin, Poland Paper ID 0232 ISBN: 978-83-7947-232-1 Experimental study of a novel dew point indirect evaporative cooler Wenhua Chen, Zhiwei Zhang, Jiayu Li,
More informationSection B Field Instruments
91-00-01-01 Section B Field Instruments Contents Product Type Literature No. Overview 30-00-02-01 34 ST 3000 Series 100e Smart Pressure s SMV 3000 Smart Multivariable Model STM125 Series 100e Models Series
More informationEnhancement of Heat Exchanger Performance by the Extended Surfaces-Fins
Enhancement of Heat Exchanger Performance by the Extended Surfaces-Fins Piyush Kumar Kashyap 1, priyanka jhavar 2 1 sri satya sai, College of engineering& science, Sheore, 466001 Abstract: 2 sri satya
More informationLaser Level Measurement Products. Introducing the New LLT100
Laser Level Measurement Products BU Measurement and Analytics, June Introducing the New LLT100 Slide 1 Introducing the LLT100 Lasers for level: Now everything is possible The LLT100 revolutionizes the
More informationOptimized Finned Heat Sinks for Natural Convection Cooling of Outdoor Electronics
Journal of Electronics and Information Science (2018) 3: 22-33 Clausius Scientific Press, Canada Optimized Finned Heat Sinks for Natural Convection Cooling of Outdoor Electronics Lian-Tuu Yeh, ASME Fellow
More informationCOMPLEX SATELLITE SYSTEMS EVERY SATELLITE IS BORN SOMEWHERE
COMPLEX SATELLITE SYSTEMS EVERY SATELLITE IS BORN SOMEWHERE CAD-TERV COMPETENCIES CAD-TERV Engineering LTD has been offering professional engineering services since 997. Our portfolio consists of comprehensive
More information[Jhansi, 5(10): October 2018] ISSN DOI /zenodo Impact Factor
GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES PERFORMANCE ANALYSIS OF VCR SYSTEM WITH TWISTED TAPE CONDENSER BY USING R134a REFRIGERANT Chidige Jhansi* 1 & Dr.Smt.G.Prasanthi 2 *1 PG Research Scholar
More informationA Cost Effective Multi-Spectral Scanner for Natural Gas Detection
A Cost Effective Multi-Spectral Scanner for Natural Gas Detection Semi-Annual Progress Report No. 1 Reporting Period Start Date: October 1, 2003 Reporting Period End Date: March 31, 2004 Principal Authors:
More informationDrop-in Testing of Next-Generation R134a Alternates in a Commercial Bottle Cooler/Freezer
Purdue University Purdue e-pubs International Refrigeration and Air Conditioning Conference School of Mechanical Engineering 2012 Drop-in Testing of Next-Generation R134a Alternates in a Commercial Bottle
More informationFailure Modes, Effects and Diagnostic Analysis
Failure Modes, Effects and Diagnostic Analysis Project: Detcon FP-700 Combustible Gas Sensor Customer: Detcon The Woodlands, TX USA Contract No.: DC 06/08-04 Report No.: DC 06/08-04 R001 Version V1, Revision
More informationDevelopment of a Compact High Efficiency Cooling Device for the PA8000 Processor*
Development of a Compact High Efficiency Cooling Device for the PA8000 Processor* Guy R. Wagner Hewlett-Packard Co., Fort Collins Systems Laboratory 3404 E. Harmony Road Fort Collins, Colorado 80525 Phone:
More informationCoil Heaters, Mini Coil Heaters, Formable/Flexible Tubular Heaters
Coil Heaters, Mini Coil Heaters, Formable/Flexible Tubular Heaters Coil Heaters Square, Mini Coil Heaters, Formable/Flexible Tubular Heaters National Plastic Heater, Sensor and Control Inc., is a leading
More informationPURIFICATION SOLUTIONS. R-Series 1. cycling refrigeration compressed air dryers flow capacity: scfm ( Nm 3 /hr)
PURIFITION SOLUTIONS R-Series R cycling refrigeration compressed air dryers flow capacity: 20-2000 scfm (34-3400 Nm 3 /hr) R-Series cycling refrigeration compressed air dryers flow capacity: 20-2000 scfm
More informationBourns Thick Film Resistive Heaters
Bourns Thick Film Resistive Heaters WHITE PAPER SATISFYING THE NEED FOR CUSTOMIZED OPEN FRAME RESISTIVE ELEMENT HEATERS Resistive element or thick film heaters have become necessary design elements in
More informationSECTION AIR HANDLING UNIT
SECTION 15800 - AIR HANDLING UNIT PART 1 - GENERAL 1.01 RELATED DOCUMENTS A. Basic Requirements: Provisions of Section 15010, BASIC MECHANICAL REQUIREMENTS, and Section 15030, ELECTRICAL REQUIREMENTS FOR
More informationBasic Input Data Needed to Develop a High Performance Fan/Blower with Low Noise, Energy Saving and High Efficiency
Basic Input Data Needed to Develop a High Performance Fan/Blower with Low Noise, Energy Saving and High Efficiency Haiye Lou TurboMoni Applied Dynamics Lab Abstract It is often happened, when a project
More informationXYZ XYZ XYZ XYZ XYZ XYZ. Energy Utility Based billing for Individual Tenants. Comprehensive Base Station Monitoring. Diesel Generator Monitoring
Advanced Tower Monitoring Power Equipment Status Battery Health Fuel Level Energy Consumption Energy Utility Based billing for Individual Tenants Comprehensive Base Station Monitoring Diesel Generator
More informationProduct Data. Features/Benefits. 28CB, 28LA Direct-Expansion. evaporator coils. 7 1 / 2 and 10 Nominal Tons Cooling
Product Data 28CB, 28LA Direct-Expansion Evaporator Coils 7 1 / 2 and 10 Nominal Tons Cooling 28CB Copyright 2001 Carrier Corporation 28LA Direct-expansion evaporator coils that easily accommodate upflow
More informationINTERNATIONAL JOURNAL OF PURE AND APPLIED RESEARCH IN ENGINEERING AND TECHNOLOGY
INTERNATIONAL JOURNAL OF PURE AND APPLIED RESEARCH IN ENGINEERING AND TECHNOLOGY A PATH FOR HORIZING YOUR INNOVATIVE WORK EXPERIMENTAL INVESTIGATION OF HELICAL COIL AND STRAIGHT TUBE HEAT EXCHANGER 1.
More informationInternational Reactor Bulletin 1100 Corporation. Standard and Custom Reactors for the Chemical Process Industries
International Reactor Bulletin 1100 Corporation Standard and Custom Reactors for the Chemical Process Industries 2 International Reactor Corporation 521 Kiser Street Dayton, Ohio 45404-1641 Phone: 937-224-4444
More informationModular: available in any length Current monitoring & error detection Wavelengths: from UV to Visible and IR. LOTUS Line lights
Product Overview LED SOLUTIONS COBRA Slim Line lights Intensity: Now up to 2900 klux Design: Slim and compact Field adjustable: focusing distance and diffusers Chip-On-Board: Extreme brightness and high
More informationAir Resource Specialists, Inc.
Air Resource Specialists, Inc. Optec NGN-2A Nephelometer Support Systems Price List July 2006 FULLY INTEGRATED OPTEC NGN-2A MONITORING AND DATA LOGGING SUPPORT SYSTEMS (costs do not include the Optec NGN-2A
More informationVIBstudio is an intelligent platform for online condition monitoring, failure protection and vibration-based diagnostics of machinery.
VIBstudio VIBRATION MONITORING SYSTEMS VIBstudio is an intelligent platform for online condition monitoring, failure protection and vibration-based diagnostics of machinery. The platform allows to: reduce
More information39G Air Handling Unit
39G Air Handling Unit Air flow: 2000 ~ 60000 m³/h The Manufacturer reserves the right to change any produt specifications without prior notices Version: Supersede: Effective Date: CAT_39G_E-1307_02 CAT_39G_E-1205_01
More informationJWST FGS SRR. April 7, Ed Nelan TIPS May 20, FGS SRR 7-April
JWST FGS SRR April 7, 2004 Ed Nelan TIPS May 20, 2004 FGS SRR 7-April-04 02-1 System Requirements Review: Objectives The FGS SRR will be a joint CSA/NASA review. The System Requirements Review (SRR) assesses
More informationSimscape Refrigerant Loop Product
Aims The product is an easy to use simscape simulator with simple GUI or HMI allowing to define: - the different configurations of the physical system - the different operating modes: start, stop, load
More informationSTUDY ON HYBRID SYSTEM OF SOLAR POWERED WATER HEATER AND ADSORPTION ICE MAKER
, Volume 6, Number 4, p.168-172, 2005 STUDY ON HYBRID SYSTEM OF SOLAR POWERED WATER HEATER AND ADSORPTION ICE MAKER Zhaohui Qi School of Energy Science and Engineering, Centralsouth University, Changsha,
More informationElectric radiator test
Electric radiator test Final Report 56161/1 Carried out for Cornwall Heating Solutions Ltd & Bright Heating By Calum Maclean 27 June 2012 Electric radiator test Carried out for: Cornwall Heating Solutions
More informationComparative analysis of power supply single speed air mover and an entire electronics enclosure system fan
Comparative analysis of power supply single speed air mover and an entire electronics enclosure system fan Typical densely packaged electronic systems and power supplies utilize a fan for forced-air cooling.
More informationPurdue e-pubs. Purdue University
Purdue University Purdue e-pubs International Refrigeration and Air Conditioning Conference School of Mechanical Engineering 206 Experimental Investigation of the Refrigerant Flow Distribution Characteristic
More informationTHERMAL ENGINEERING LABORATORY II. To train the students with principles and operation of thermal Engineering equipments.
AIM: THERMAL ENGINEERING LABORATORY II To train the students with principles and operation of thermal Engineering equipments. OBJECTIVES: To experimentally analyze conduction, convection and radiation.
More informationRosemex Products 96 VENTILATION CLIMATAIR COMPARTMENT AIR HANDLING UNITS
10 Rosemex Products 96 VENTILATION CLIMATAIR COMPARTMENT AIR HANDLING UNITS 2 INDEX Page Description - Introduction -Application - Data... 2 Typical Installation... 3 Sound performance... 3-6 Dimensional
More informationNew Copper-based Heat Exchangers for R744 Refrigerant: Technologies for Tubes and Coils. Y. Shabtay, J. Black, N. Cotton
New Copper-based Heat Exchangers for R744 Refrigerant: Technologies for Tubes and Coils Y. Shabtay, J. Black, N. Cotton IIR International Conference, April 16-18, 2015 Introduction This paper presents
More informationEVALUATING LOOP HEAT PIPE PERFORMANCE IMPROVEMENT USING CIRCUMFERENTIAL GROOVES. Nadjara dos Santos, Roger R. Riehl
Abstract EVALUATING LOOP HEAT PIPE PERFORMANCE IMPROVEMENT USING CIRCUMFERENTIAL GROOVES Nadjara dos Santos, Roger R. Riehl National Institute for Space Research INPE - Space Mechanics and Control Division-DMC
More informationDesign And Analysis Of Centrifugal Pump
Design And Analysis Of Centrifugal Pump GUIDED BY: Assistant Professor Jayendra B. Patel PRESENTED BY: Makwana Hardik Modh Hiren Patel Gaurang Patel Dhaval 1 Introduction It Convert the mechanical energy
More informationImportant Considerations When Selecting a Fan for Forced Air Cooling. By: Jeff Smoot, CUI Inc
Important Considerations When Selecting a Fan for Forced Air Cooling By: Jeff Smoot, CUI Inc Designing an appropriate thermal management solution requires a systemic approach; each component on a circuit
More informationSpool Compressor Technology Introduction
Spool Compressor Technology Introduction June 12,2012 The Next Generation in Refrigerant Compressor Introduction The sluggish economy is just the tip of the iceberg of business challenges impeding the
More informationCOMPACT HEAT EXCHANGERS FOR MOBILE CO 2 SYSTEMS
COMPACT HEAT EXCHANGERS FOR MOBILE CO 2 SYSTEMS A. Hafner SINTEF Energy Research Refrigeration and Air Conditioning Trondheim (Norway) ABSTRACT The natural refrigerant carbon dioxide (CO 2 ) with all its
More informationSummary: thermal analysis, CFD simulations. - Enrico Da Riva - CERN (EN/CV/PJ) Workshop on SiPM cooling for Fiber Tracker, 17 October 2013
Summary: thermal analysis, CFD simulations - Enrico Da Riva - CERN (EN/CV/PJ) Workshop on SiPM cooling for Fiber Tracker, 1 Contents A. Computational Fluid Dynamics (CFD) simulations for design optimization
More informationEnergy Conservation with PARAG Energy Efficient Axial Flow FRP Fans
PARAG FANS & COOLING SYSTEMS LTD. Energy Conservation with PARAG Energy Efficient Axial Flow FRP Fans Registered Office & Works Plot No.1/2B & 1B/3A, Industrial Area No.1 A.B.Road, Dewas 455001 (M.P.)
More informationIntroducing the Digital Illumination Interface Alliance
Introducing the Digital Illumination Interface Alliance The global industry alliance for DALI lighting control March 2019 1 DiiA: The global industry alliance for DALI DiiA the Digital Illumination Interface
More informationFeasibility Study of Condensation Heat Exchanger with Helical Tubes for a Passive Auxiliary Feedwater System
Feasibility Study of Condensation Heat Exchanger with Helical Tubes for a Passive Auxiliary Feedwater System Kwanghee Seo 1) and Taewan Kim 2)* 1) KEPCO Engineering & Construction Company. INC., 269 Hyeoksin-ro,
More informationnext generation R 1 cycling refrigerated compressed air dryers flow capacity: scfm ( Nm 3 /hr)
next generation R 1 cycling refrigerated compressed air dryers flow capacity: 20-2000 scfm (32-3210 Nm 3 /hr) cycling refrigerated compressed air dryers R 1 flow capacity: 20-2000 scfm (32-3210 Nm 3 /hr)
More informationEngineering Guideline. pac-carriers Type SIEMENS ET-200M Fail-safe signal modules
Engineering Guideline pac-carriers Type 9195 SIEMENS ET-200M Fail-safe signal modules pac-carrier Type 9195 2 Engineering Guideline/SIEMENS 19.05.2015 pac-carrier Type 9195 Integration of conventional
More informationExperimental Comparison of Natural Convection Heat Transfer from a Blackened V-Fin Array
International Journal of Modern Studies in Mechanical Engineering (IJMSME) Volume 4, Issue 1, 2018, PP 11-16 ISSN 2454-9711 (Online) DOI: http://dx.doi.org/10.20431/2454-9711.0401002 www.arcjournals.org
More informationTHEORY OR OPERATION 2 SENSOR UNIT - MECHANICAL 6 SENSOR UNIT - ELECTRICAL 8 CONTROL UNIT - MECHANICAL 9 CONTROL UNIT - ELECTRICAL 9 OPTIONS 11
Table of Contents INTRODUCTION 1 THEORY OR OPERATION 2 DESCRIPTION 5 SENSOR UNIT - MECHANICAL 6 SENSOR UNIT - ELECTRICAL 8 CONTROL UNIT - MECHANICAL 9 CONTROL UNIT - ELECTRICAL 9 SPECIFICATIONS 10 OPTIONS
More informationExperience In Motion. WXH and WXM Utility-Grade Multistage Ring Section Pumps
Experience In Motion WXH and WXM Utility-Grade Multistage Ring Section Pumps High reliability and performance in rapid-cycling applications The WXH and WXM multistage ring section pumps are specifically
More informationCRYOGENIC PRODUCTS SEB Series Trim Heater
SEB Series Trim Heater Cryoquip manufactures a new series of modular Trim Heaters. The new units are available for use with industrial gases such as Oxygen, Nitrogen, Argon, CO2 as well as other specialized
More informationTRANSIENT MODELING OF HYBRID LOOP HEAT PIPE SYSTEMS WITH MULTIPLE EVAPORATORS
Frontiers in Heat Pipes Available at www.thermalfluidscentral.org TRANSIENT MODELING OF HYBRID LOOP HEAT PIPE SYSTEMS WITH MULTIPLE EVAPORATORS Dmitry Khrustalev * and Peter Cologer ATK Space, Beltsville,
More information