Thermodynamic, environmental, and economic analysis of a novel power and water production system driven by gas turbine cycle

Alexandria Engineering Journal

Guang Hu¹  Zhi Zeng²  Armin Asgari³  Xianglong Liu³ 

[1]Corresponding author.

[2]Department of Building Engineering, Hunan Institute of Engineering, Xiangtan Hunan 4411104, China

[3]Hunan Engineering Research Center of Energy Saving and Material Technology of Green and Low Carbon Building, Hunan Institute of Engineering, Xiangtan Hunan, 411104, China

关键词: Power and freshwater cogeneration;    Thermodynamic analysis;    Exergoeconomic analysis;    Economic analysis;    Economic profitability;   

DOI  :  

来源: DOAJ

【 摘 要 】

In the present study, the performance of a creative poly-generation plant generating electricity and freshwater was energetically, exegetically, economically, and environmentally analyzed. The system consists of a gas turbine as the prime mover and Kalina and humidification-dehumidification desalination units for waste heat recovery purposes. A sensitivity analysis was conducted to evaluate the influence of design parameters variation on the proposed system performance. The construction feasibility of the proposed system was assessed by utilizing Net Present Value and the payback period. According to the obtained data from the base simulation conditions, the total gained output ratio, exergetic efficiency, the total cost of products, Levelized total emission, and freshwater production capacity were obtained 0.9574, 43.05%, 20.22$/GJ, 63679kg/kW, and 10.77kg/s. The combustion chamber has the highest exergy destruction rate by 16382kW. Moreover, the sensitivity analysis revealed that an increase in the combustion temperature reduces pollutant emission and enhances the power generation rate and exergy efficiency. Regarding 2.5$/GJ and 0.085$/kWh as the fuel cost and electricity price, a total profit of 18.93$M at the end of economic book life can be obtained, with a payback time of 6.39years, demonstrating the feasibility of the plant for establishment.

【 授权许可】

Unknown