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Design and analysis of cooling co-generation cycle using aqua-ammonia as working fluid
R. Shankar, T. Srinivas, B. Anand, , W. Rivera
Published in Elsevier Ltd
2020
Volume: 20
   
Abstract
The world faces an emerging power crunch due to the increase in population and their needs. The per capita power consumption for refrigeration and air-conditioning in domestic applications is relatively high and it is at a peak during summer. Producing power and cooling output in a single cycle and to increase the thermal performance of the system is the main objective. A new cooling cogeneration cycle is proposed, and it is designed and analysed experimentally. The system is operated at three pressures viz condensing pressure, source and sink pressure. The plant comprises of pump, separator, superheater, turbine, condenser and absorber. The ammonia vapor at exit of separator expands through the turbine from generator pressure to condensing pressure to generate electricity. The same ammonia vapor is condensed to liquid and it is further expanded from condensing pressure to sink pressure to achieve the cooling effect. The power and cooling output of 1.8 kW and 8.04 kW are obtained experimentally at 0.25 of ammonia concentration. Maximum energy utilization factor (EUF) of 0.2 is obtained at the hot fluid supply temperature of 110 ⁰C and it can be further increased by raising the strong solution concentration of ammonia and lowering sink temperature. The proposed system is suitable for both domestic and industrial applications. © 2020 Elsevier Ltd
About the journal
JournalData powered by TypesetThermal Science and Engineering Progress
PublisherData powered by TypesetElsevier Ltd
ISSN24519049