Effects of ambient conditions on performance of gas turbine cogeneration cycles
Küçük Resim Yok
Tarih
2017
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Turkish Society for Thermal Science and Technology
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this paper, effects of the ambient conditions on performance of cogeneration cycles are analyzed by using exergy analysis method. These cogeneration cycles are the simple cycle, the air preheating cycle, the air-fuel preheating cycle and the inlet air cooling cycle. Also, these cycles are evaluated thermodynamically for different air and fuel mass ratio and the performance of these cycles are compared. The electrical power generation increases about 10-15 % by decreasing the inlet air temperature of the compressor from 25 0C to 0 0C. However, the thermal power decreases about 10 % with decreasing inlet air temperature. During the summer, the electric power can be easily increased 2-7 % by injecting water into the inlet air of the compressor. The exergetic efficiency of cycles is decreased 11-13 %, by decreasing the compressor inlet air pressure from 101.3 kPa to 70.18 kPa. But this change decreases the electric power generation about 25 %. The highest exergy efficiency is obtained for the air-fuel preheated cycle. The simple cycle is the best among the four cycles to obtain high heat rate and heat exergy. The effects of all ambient conditions on these cycles are considered simultaneously, analyzed and compared with each other in this study. © 2017 TIBTD Printed in Turkey.
Açıklama
Anahtar Kelimeler
Cogeneration, Efficiency, Environment, Air preheaters, Atmospheric temperature, Cogeneration plants, Compressors, Efficiency, Electric power generation, Exergy, Fuels, Preheating, Thermal load, Ambient conditions, Cogeneration, Electrical power generation, Environment, Exergetic efficiency, Exergy efficiencies, Gas turbine cogeneration, Inlet air temperatures, Gas turbines, Cogeneration, Efficiency, Environment, Air preheaters, Atmospheric temperature, Cogeneration plants, Compressors, Efficiency, Electric power generation, Exergy, Fuels, Preheating, Thermal load, Ambient conditions, Cogeneration, Electrical power generation, Environment, Exergetic efficiency, Exergy efficiencies, Gas turbine cogeneration, Inlet air temperatures, Gas turbines
Kaynak
Isi Bilimi Ve Teknigi Dergisi/ Journal of Thermal Science and Technology
WoS Q Değeri
Scopus Q Değeri
Cilt
37
Sayı
1
