NDLI: Branched GAX cycle gas fired heat pump

Content Provider	IEEE Xplore Digital Library
Author	Erickson, D.C. Anand, G. Papar, R.A.
Copyright Year	1996
Description	Author affiliation: Energy Concepts Co., Annapolis, MD, USA (Erickson, D.C.)
Abstract	GAX absorption heat pump cycles are characterized by the generator-absorber heat exchange (GAX) between the high-temperature end of the absorber and the low temperature end of the generator. The improved thermodynamic performance of the basic GAX cycle coupled with its mechanical simplicity has attracted substantial interest in using this cycle for gas-cooling. However, to be competitive in a cooling dominated market, the cycle has to achieve high cooling performance and also low installed cost. The branched GAX (BGAX) cycle promises higher cooling performance using similar components as the basic GAX cycle and an additional solution pump. By increasing the solution flow rate at the hot end of the absorber, the BGAX cycle makes more complete use of the temperature overlap. As a result, less external heat is supplied and higher coefficients of performance (COPs) are obtained. A breadboard prototype of the BGAX cycle has been developed and is now operating. A novel thermosyphon cooled absorber eliminates the need for the outdoor hydronic loop, and reduces cost by 10%. Other component improvements yield another 10% cost reduction. The breadboard prototype has operated for more than 200 hours. Gas cooling COP=0.87 has been consistently achieved at 30.6/spl deg/C (87/spl deg/F) ambient conditions. At the 35/spl deg/C (95/spl deg/F) ambient capacity rating condition, a cooling load of 4.5 refrigeration tons was achieved at a cycle COP=0.95.
Starting Page	1078
Ending Page	1083
File Size	409664
Page Count	6
File Format	PDF
ISBN	0780335473
ISSN	10893547
DOI	10.1109/IECEC.1996.553854
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-08-11
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Heat pumps Character generation Cooling Costs Absorption Prototypes Heat transfer Temperature dependence Thermodynamics Refrigeration
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Semi-GAX cycles for waste heat powered refrigeration [absorption heat pumps]

Secondary Fluids for GAX Absorption Heat Pump

Triple effect absorption cycles [refrigeration heat pumps]

The effect of cooling water on the performance of vapour absorption refrigeration system

Thermodynamic evaluation of triple effect absorption chiller

Gas Turbine Inlet Air Cooling Using Absorption Refrigeration: A Comparison Based on a Combined Cycle Process

Analysis and Measurement of Bubble Pumps and Impact on Single Pressure Absorption Refrigeration Cycle

A Novel Ammonia-Water Cycle for Power and Refrigeration Cogeneration

Thermodynamic analysis of adsorption refrigeration cycles

Branched GAX cycle gas fired heat pump

Similar Documents

Semi-GAX cycles for waste heat powered refrigeration [absorption heat pumps]

Secondary Fluids for GAX Absorption Heat Pump

Triple effect absorption cycles [refrigeration heat pumps]

The effect of cooling water on the performance of vapour absorption refrigeration system

Thermodynamic evaluation of triple effect absorption chiller

Gas Turbine Inlet Air Cooling Using Absorption Refrigeration: A Comparison Based on a Combined Cycle Process

Analysis and Measurement of Bubble Pumps and Impact on Single Pressure Absorption Refrigeration Cycle

A Novel Ammonia-Water Cycle for Power and Refrigeration Cogeneration

Thermodynamic analysis of adsorption refrigeration cycles

Branched GAX cycle gas fired heat pump