Abstract
In this paper, a thermodynamic simulation is developed based on energy and exergy analysis for evaluating the features in the proposed cycle including combined power generation, water distillation and natural gas cooling cycle. The Faruj NGCS in Iran is selected as a case study to evaluate the proposed cycle. Based on exergy analysis, in the MSF distillation cycle, consisting of HRS, HRJS and brine heater, the exergy destruction rate of the HRS unit with 25 flashing stages is obtained 71%. Moreover, the results show that the proposed cycle is able to produce 9,000 m3/day distilled water from 30,000 m3/day brine water. Also, 2.1 MW electricity is generated by steam turbine. Moreover, the waste heat potential of all NGCSs in Iran, in order to produce distilled water, is investigated. Finally, economic analysis based on net present value (NPV), internal rate of return (IRR) and payback period indicators have been performed.
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