Combined power-refrigeration cycle as an effective approach to enhance the thermodynamic performance of gas turbine power plants

Main Article Content

Giuma M Fellah http://orcid.org/0000-0002-3526-8459

Abstract

In the hot climate zones where the ambient temperature may reach 50oC, the net power output of the gas turbine cycles is extremely deteriorated. In order to reduce the effect of the high ambient temperature, specifically in the summer session, the inlet air could be cooled to the standard temperature of 15oC.

The goal of this article is to determine from the thermodynamic point of view, the feasibility of utilizing an absorption refrigeration cycle to enhance the thermodynamic performance of the combined cycle when the ambient temperatures vary between 15oC and 50oC.

This article proposes utilizing the exhaust gasses of the gas turbine cycle to power both a steam cycle and ammonia-water absorption refrigeration cycle in a combined power-refrigeration cycle. The task of the absorption refrigeration cycle is to keep the inlet air temperature at 15oC.

It is found that the net power output and the thermal efficiency of the power-refrigeration cycle could be increased by 30.16% and 3.12% respectively, over the conventional combined power cycle when the ambient temperature increases from 15 to 50oC.

Article Details

How to Cite
FELLAH, Giuma M. Combined power-refrigeration cycle as an effective approach to enhance the thermodynamic performance of gas turbine power plants. International Journal of Engineering papers, [S.l.], v. 2, n. 1, feb. 2017. Available at: <https://scigatejournals.com/publications/index.php/ijep/article/view/170>. Date accessed: 20 oct. 2017.
Section
Articles

References

[1] H. Abed, K. Atashkari, A. Niazmehr, and A. Jamali. Thermodynamic optimization of combined power and refrigeration cycle using binary organic working fluid. Int. J. Refrig., vol. 36, no. 8, pp. 2160–2168, 2013.
[2] Y. Dai, J. Wang, and L. Gao. Exergy analysis , parametric analysis and optimization for a novel combined power and ejector refrigeration cycle. Appl. Therm. Eng., vol. 29, no. 10, pp. 1983–1990, 2009.
[3] J. Wang, J. Wang, and Y. Dai. Thermodynamic analysis of a new combined cooling and power system using ammonia – water mixture. Energy Conversion and Mangement. no. 117, pp. 355-342, July, 2016.
[4] S. M. Sadrameli. APPLIED Optimum operating conditions for a combined power and cooling thermodynamic cycle. vol. 84, pp. 254–265, 2007.
[5] C. Yang, Z. Yang, and R. Cai.Analytical method for evaluation of gas turbine inlet air cooling in combined cycle power plant. Appl. Energy, vol. 86, no. 6, pp. 848–856, 2009.
[6] M. Farzaneh-gord and M. Deymi-dashtebayaz. Effect of various inlet air cooling methods on gas turbine performance. Energy, vol. 36, no. 2, pp. 1196–1205, 2011.
[7] M. M. Rashidi, O. A. Bég, and A. Aghagoli. Utilization of waste heat in combined power and ejector refrigeration for a solar energy source. vol. 8, no. 1999, pp. 1–16, 2012.
[8] G. M. Fellah. Effect of ambient temperature on the thermodynamic performance of a combined cycle. Journal of Engineering Research, no 13, pp. 38-48, March 2010.
[9] A. Fontalvo, H. Pinzon, J. Duarte, A. Bula, A. G. Quiroga, and R. V. Padilla. Exergy analysis of a combined power and cooling cycle. Appl. Therm. Eng., vol. 60, no. 1–2, pp. 164–171, 2013.
[10] J. Rashidi, P. Ifaei, I. J. Esfahani, A. Ataei, and C. K. Yoo. Thermodynamic and economic studies of two new high efficient power-cooling cogeneration systems based on Kalina and absorption refrigeration cycles. Energy Convers. Manag., vol. 127, pp. 170–186, 2016.
[11] J. Wang, P. Zhao, X. Niu, and Y. Dai. Parametric analysis of a new combined cooling , heating and power system with transcritical co2 driven by solar energy. Appl. Energy, vol. 94, pp. 58–64, 2012.
[12] V. Israel, “first and second law analysis of a new power and refrigeration thermodynamic cycle using a solar heat source,” vol. 73, no. 5, pp. 385–393, 2003.
[13] R. Vasquez, G. Demirkaya, D. Y. Goswami, E. Stefanakos, and M. M. Rahman. Analysis of power and cooling cogeneration using ammonia-water mixture. Energy, vol. 35, no. 12, pp. 4649–4657, 2010.
[14] J. Xu, J. Sui, B. Li, and M. Yang. Research , development and the prospect of combined cooling , heating , and power systems. Energy, vol. 35, no. 11, pp. 4361–4367, 2010.
[15] Y. A. Awin and G. M. Fellah. Performance Enhancement of Unit number six in Misurata Gas Turbine Power Plant by Effective Utilization of the Exhaust Gases. 23rd International Symposium on Transport Phenomena Auckland, New Zealand 19–22 November 2012