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Absorption refrigeration system for mobile applications utilizing exhaust gases

Koehler, J. and Tegethoff, W. J. and Westphalen, D. and Sonnekalb, M. (1997):
Absorption refrigeration system for mobile applications utilizing exhaust gases.
In: Heat and Mass Transfer, 32 (5), pp. 333-340. ISSN 0947-7411,
[Article]

Abstract

A breadboard prototype of an absorption system for truck refrigeration using heat from the exhaust-gases was designed, built and tested. Measured COP values of the unoptimized single-stage ammonia-water absorption cycle varied between 23 and 30%, but system modeling shows that this can be improved to values considerably over 30%. Computer simulation for the system included cycle analysis as well as component modeling, using a detailed two-fluid model for flow of the ammonia-water mixture in the condenser and absorber. This detailed model was also validated using test data. In addition, the recoverable energy of the exhaust gases was analyzed for representative truck-driving conditions for city traffic, mountain roads and flat roads. The results show that the system is promising for long distance driving on flat roads.

Item Type: Article
Erschienen: 1997
Creators: Koehler, J. and Tegethoff, W. J. and Westphalen, D. and Sonnekalb, M.
Title: Absorption refrigeration system for mobile applications utilizing exhaust gases
Language: English
Abstract:

A breadboard prototype of an absorption system for truck refrigeration using heat from the exhaust-gases was designed, built and tested. Measured COP values of the unoptimized single-stage ammonia-water absorption cycle varied between 23 and 30%, but system modeling shows that this can be improved to values considerably over 30%. Computer simulation for the system included cycle analysis as well as component modeling, using a detailed two-fluid model for flow of the ammonia-water mixture in the condenser and absorber. This detailed model was also validated using test data. In addition, the recoverable energy of the exhaust gases was analyzed for representative truck-driving conditions for city traffic, mountain roads and flat roads. The results show that the system is promising for long distance driving on flat roads.

Journal or Publication Title: Heat and Mass Transfer
Journal volume: 32
Number: 5
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Institute for Technical Thermodynamics (TTD)
Date Deposited: 26 Feb 2015 13:47
Official URL: http://dx.doi.org/10.1007/s002310050130
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