Ajetunmobi, David Tunmise and Ayanrinde, Ayanniyi Wole (2020) EXERGETIC ANALYSIS OF AN AIR CONDITIONING SYSTEM USING R-22 AND R-600a REFRIGERANTS. International Journal of Scientific & Engineering Research, 11 (8). pp. 1392-1396. ISSN 2229-5518
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EXERGETIC-ANALYSIS-OF-AN-AIR-CONDITIONING-SYSTEM-USING-R-22-AND-R-600a-REFRIGERANTS Ajetunmobi & Ayanrinde.pdf Download (1MB) |
Abstract
Exergy analysis has been applied to two air conditioning systems which made use of R-22 and R-600a refrigerants in an effort to characterise exergy consumption and to identify areas requiring greater improvements in the systems. The study was conducted by taking temperature and pressure data to perform mass and exergy analysis of the refrigeration system which comprises of the compressor, the condenser, a throttle valve and an evaporator. The coefficient of performance, exergy destruction and exergetic efficiency and inefficiency of the refrigeration systems was determined. Results show that the highest irreversibility occurs in the compressor and the evaporator which have very close values. In the air conditioning system using R-22 refrigerant, the total exergy destroyed was 5.47 kW, with the highest value of 1.76 kW in the evaporator and an inefficiency of 32.16% while the R-600a system had the highest irreversibility in the compressor having 2.28 kW and inefficiency of 30.97%. The R-22 air conditioning system had a COP of 3.08 and had a minimum temperature of 18°C in the delivery air while the COP of R-600a was 4.13, though higher than that of R-22, had a minimum temperature of 21°C. The major energy into the system was through the compressor. The work done in the compressor of the R-22 air conditioning system was found to be 1.104 kJ/s while that of the R-600a system was 1.102 kJ/s
| Item Type: | Article |
|---|---|
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Joy Oluwabukola Olayiwola |
| Date Deposited: | 17 May 2021 09:06 |
| Last Modified: | 17 May 2021 09:06 |
| URI: | http://eprints.federalpolyilaro.edu.ng/id/eprint/1298 |
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