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Performance of different working fluids in transfer-tank operated vapour absorption refrigeration systems

✍ Scribed by G. Karthikeyan; A. Mani; S.Srinivasa Murthy

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
518 KB
Volume
6
Category
Article
ISSN
0960-1481

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✦ Synopsis

A vapour absorption refrigeration system (VARS) in which a transfer tank replaces the conventional solution pump is analysed. Six fluid pairs with R22 as the refrigerant and different absorbents : DMA; DMF; DMETEG; DMETrEG; DMEDEG; and NMP are considered. Variations in COP, circulation ratio, percent mass of generated vapour utilised for transfer-tank operation, and minimum generator temperature are compared over a wide range of operating conditions. In general, R22-DMA, R22 DMF, and R22-DMETrEG are preferable for a transfer-tank operated VARS. At high generator temperatures or low condenser temperatures, R22-DMA gives the best overall performance. When the temperatures of the evaporator, absorber, and condenser are high, one may prefer R22 DMF as the working fluid.

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