Investigation of Separator Parameters in Kalina Cycle Systems

Deepak, K

doi:10.14741/ijcet/spl.2.2014.93

Cited by 1 publication

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References 7 publications

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“…Due to the increase in energy demand and the decrease in fossil fuel reserves and pollution of the environment, research on power generation from renewable energy sources and increasing the energy efficiency of these systems gained importance (Arslan, 2010;Arslan, 2011;Deepak et al, 2014;Yari et al, 2015;Zare and Moalemian, 2017;Acar and Arslan, 2019). Geothermal energy is one of the most preferred renewable energy sources in terms of sustainability.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic and Economic Analysis of Geothermal Energy Powered Kalina Cycle

Senturk

2020

Isı Bilimi Ve Tekniği Dergisi

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In this study, thermodynamic and economic analysis have been carried out to the determination of optimum design parameters of Kalina Cycle. The optimization of four key parameters (turbine inlet pressure, geothermal water outlet temperature at evaporator, condenser pressure and ammonia mass fraction) is also conducted. The thermodynamic properties of the medium temperature geothermal resource in the Simav region are used in the system designs. The energy efficiency and exergy efficiency of the system are evaluated through the thermodynamic analysis. Also, the system has been investigated economically with the net present value method. As a result of the exergy analysis, it is determined that the maximum exergy destruction occurs in the evaporator within the total exergy destruction of the system. In the system design with 90 % ammonia mass fraction, the exergy destruction in the evaporator constitutes 66.5 % of the total exergy destruction in the system. The geothermal water outlet temperature at evaporator, ammonia mass fraction, turbine inlet pressure and condenser pressure of the most effective geothermal energy powered Kalina Cycle are determined as 353.15 K, 90 %, 4808 kPa and 700 kPa, respectively. The energy efficiency and exergy efficiency of this system are calculated as 13.04 % and 51.81 %, respectively. Also, the net present value of this system is calculated as 119.377 Million US$ and it is seen that it is suitable for investment in economic terms.

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