• Thermal Performance of Geothermal Power Plant with Kalina Cycle System
• Author  :  K. Deepak and A.V.S.S.K.S. Gupta
• Pages   :  61-64, DOI:http://dx.doi.org/10.14741/ijtt/2014.4.2.04
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• Abstract

With the advent of Kalina cycle, researchers are focusing on the development of new cycle configurations for the utilization heat energy from low temperature heat sources which might have otherwise not utilized. A model of low temperature Kalina cycle system is investigated for generating electricity from geothermal source. The thermodynamic properties of ammonia-water mixture are computed using Gibbs free energy equations. A computer code is developed to determine the cycle performance and properties of ammonia-water mixture at different operating conditions. The thermodynamic analysis of ammonia concentration at the turbine inlet on cycle performance is presented. A maximum efficiency of 11.77 % is achieved at separator temperature 125oC and 95% turbine inlet concentration. Also a maximum specific power of 74.32 kW is achieved at separator temperature 125oC and 92% turbine inlet concentration. This work provides an insight to the researchers for developing new configurations of Kalina cycle systems based on the available heat sources.

Keywords: Ammonia-water mixture, Geothermal power, Kalina cycle system, Low temperature heat utilization

Article published in International Journal of Thermal Technologies, Vol.4, No.2 (June- 2014)