Thermodynamic Performance Analysis of a Gas Turbine in an Equatorial Rain Forest Environment

DOI: 10.4236/jpee.2015.31002   PDF   HTML   XML   7,985 Downloads   9,069 Views   Citations


This paper discusses the thermodynamic analysis of a gas turbine power plant located in the equatorial rainforest of southern Nigeria. Steady state monitoring and direct collection of data from the Mk IV Speedtronics system and log books in the control room was performed. The variation of operating conditions (ambient temperature, compressor discharge temperature, turbine inlet temperature, exhaust temperature and fuel mass flow rate) on the performance of gas turbine (thermal efficiency, net power output, heat rate, specific fuel consumption and compressor work) were investigated using various thermodynamic relations and equations. The results show that a degree rise in ambient temperature could be responsible for the following: 1.37% reduction in the net power output, 1.48% increase in power drop, 1.49% reduction in thermal efficiency, 2.16% increase in heat rate, 2.17% increase in specific fuel consumption and 0.3% increase in compressor work. Furthermore the thermal efficiency decreases by 0.006% for 1 kcal/kWh increase in heat rate and the heat transfer in the hot gas part was found to increase by 0.16% for a degree rise in ambient temperature. Also the work reveals that the gas turbine had a huge drop in power due to influence of site parameters in contrast to designed data.

Share and Cite:

Lebele-Alawa, B. and Jo-Appah, V. (2015) Thermodynamic Performance Analysis of a Gas Turbine in an Equatorial Rain Forest Environment. Journal of Power and Energy Engineering, 3, 11-23. doi: 10.4236/jpee.2015.31002.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] Lebele-Alawa, B.T., Hart, H.I., Ogagi, S.O.T. and Probert, S.D. (2008) Rotor-Blades’ Profile Influence on a Gas Turbine’s Compressor Effectiveness. Applied Energy, 85, 494-505.
[2] Lebele-Alawa, B.T. (2010) Axial Thrust Responses to Gas Turbine’s Rotor-Blade Distortions. Journal of Engineering Physics and Thermophysics, 83, 991-994.
[3] Cohen, H., Rogers, G.F.C. and Saravanamuttoo, H.I.H. (1998) Gas Turbine Theory. 4th Edition, Addison Wesley Longman Ltd., London.
[4] Rahman, M.M., Thamir, K.I. and Ahmed, N.A. (2012) Thermodynamic Performance Analysis of Gas Turbines Power Plant. Journal of the Physical Sciences, 6, 3539-3550.
[5] Charles, M., Abeeku, B.H. and Seth, P.A. (2010) Thermodynamic Analysis of the Gas and Steam Turbine at Takoradi Thermal Power Station. Journal of Technology and Advanced Engineering Research, 1, 62-72.
[6] Odubo, E.O. (1997) Air Flow Regulator for Gas Turbine Combustion Chamber Temperature Control. Master of Technology Dissertation, Rivers State University of Science and Technology, Nigeria.
[7] Javaniyan, J., Eftari, M., Kaliji, H.D., Ghadak, F. and Rad, M. (2013) Analytical Modeling of Performance Characteristics of Axial Flow Two-Stage Turbine Engine Using Pressure Losses and Comparing with Experimental Results. Journal of Applied Science, 21, 1250-1259.
[8] Vinicius, G.M., Edson, L.Z., Claudia, R.A. and Lima, R.C. (2012) Numerical Simulation of Performance of an Axial Turbine First Stage. Journal of Aerospace Technology, 4, 175-184.
[9] Huadong, Y. and Hong, X. (2013) The Effect of Surface Roughness on Thermodynamic Performance Parameters of Axial Flow Compressor. Journal of Applied Science, Engineering and Technology, 5, 4458-4463.
[10] Fidelis, I.A., Ikpi, U.U. and Dodoye, I.I. (2012) Performance Analysis and Components Irreversibities of a (25 MW) Gasturbine Power Plant Moduled with a Spray Cooler. Journal of Engineering and Applied Services, 5, 35-41.
[11] Hart, H.I. (1998) Thermodynamic “Appraisal of Niger Delta Gas Turbine Performance”. Ph.D. Dissertation, Mechanical Engineering, University of Nigeria, Nsuka.

comments powered by Disqus

Copyright © 2020 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.