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Journal of Applied Sciences
  Year: 2009 | Volume: 9 | Issue: 13 | Page No.: 2399-2407
DOI: 10.3923/jas.2009.2399.2407
 
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Energy and Exergy Analysis of Simple and Regenerative Gas Turbines Inlet Air Cooling Using Absorption Refrigeration

S.M.S. Mahmoudi, V. Zare, F. Ranjbar and L. Garooci Farshi

Abstract:
This study deals with energy and exergy analysis of simple and regenerative gas turbines with inlet air cooling using lithium bromide-water absorption refrigeration cycle. A parametric study has been carried out and effects of important factors like compressor inlet air temperature, pressure ratio and turbine inlet temperature on the performance of the cycles were studied. The results show that for each 10°C decrease of inlet air temperature, net output power increases around 6-12% and the first and second law efficiencies increase around 2-7%. It is shown that the amount of this increase is higher when the pressure ratio is high and turbine inlet temperature is low. Also exergy destruction of all components has been calculated and the results indicate that the combustor has the largest contribution on exergy destruction and the exergy destruction of absorption refrigeration cycle is very low as compared to that of the gas turbine one. It is also found that the energy content of exhaust gases in both simple and regenerative gas turbines is more than enough to run the refrigeration cycle. The results of required cooling load can be helpful in estimating the cost of the necessary absorption refrigeration unit.
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How to cite this article:

S.M.S. Mahmoudi, V. Zare, F. Ranjbar and L. Garooci Farshi, 2009. Energy and Exergy Analysis of Simple and Regenerative Gas Turbines Inlet Air Cooling Using Absorption Refrigeration. Journal of Applied Sciences, 9: 2399-2407.

DOI: 10.3923/jas.2009.2399.2407

URL: https://scialert.net/abstract/?doi=jas.2009.2399.2407

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