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Title: GAX absorption cycle design process

Abstract

This paper presents an absorption system design process that relies on computer simulations that are validated by experimental findings. An ammonia-water absorption heat pump cycle at 3 refrigeration tons (RT) and chillers at 3.3 RT and 5 RT (10.5 kW, 11.6 kW, and 17.6 kW) were initially modeled and then built and tested. The experimental results were used to calibrate both the cycle simulation and the component simulations, yielding computer design routines that could accurately predict component and cycle performance. Each system was a generator-absorber heat exchange (GAX) cycle, and all were sized for residential and light commercial use, where very little absorption equipment is currently used. The specific findings of the 5 RT (17.6 kW) chiller are presented. Modeling incorporated a heat loss from the gas-fired generator and pressure drops in both the evaporator and absorber. Simulation results and experimental findings agreed closely and validated the modeling method and simulation software.

Authors:
;
Publication Date:
Research Org.:
Ohio State Univ., Columbus, OH (US)
OSTI Identifier:
20002351
Report Number(s):
CONF-990102-
ISSN 0001-2505; TRN: IM200002%%351
Resource Type:
Conference
Resource Relation:
Conference: ASHRAE Winter Meeting, Chicago, IL (US), 01/23/1999--01/27/1999; Other Information: PBD: 1999; Related Information: In: ASHRAE transactions 1999: Technical and symposium papers. Volume 105, Part 1, 1387 pages.
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; ABSORPTION REFRIGERATION CYCLE; COMPUTER-AIDED DESIGN; AMMONIA; HEAT PUMPS; RESIDENTIAL BUILDINGS; COMMERCIAL BUILDINGS; COEFFICIENT OF PERFORMANCE; PARAMETRIC ANALYSIS

Citation Formats

Priedeman, D K, and Christensen, R N. GAX absorption cycle design process. United States: N. p., 1999. Web.
Priedeman, D K, & Christensen, R N. GAX absorption cycle design process. United States.
Priedeman, D K, and Christensen, R N. 1999. "GAX absorption cycle design process". United States.
@article{osti_20002351,
title = {GAX absorption cycle design process},
author = {Priedeman, D K and Christensen, R N},
abstractNote = {This paper presents an absorption system design process that relies on computer simulations that are validated by experimental findings. An ammonia-water absorption heat pump cycle at 3 refrigeration tons (RT) and chillers at 3.3 RT and 5 RT (10.5 kW, 11.6 kW, and 17.6 kW) were initially modeled and then built and tested. The experimental results were used to calibrate both the cycle simulation and the component simulations, yielding computer design routines that could accurately predict component and cycle performance. Each system was a generator-absorber heat exchange (GAX) cycle, and all were sized for residential and light commercial use, where very little absorption equipment is currently used. The specific findings of the 5 RT (17.6 kW) chiller are presented. Modeling incorporated a heat loss from the gas-fired generator and pressure drops in both the evaporator and absorber. Simulation results and experimental findings agreed closely and validated the modeling method and simulation software.},
doi = {},
url = {https://www.osti.gov/biblio/20002351}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jul 01 00:00:00 EDT 1999},
month = {Thu Jul 01 00:00:00 EDT 1999}
}

Conference:
Other availability
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