Thermo-economic analysis of integrated linear Fresnel reflector gas turbine trigeneration power plants

9th Edition of the International SOLARIS Conference

Dabwan, Yousef N.^1^2 ; Gang, Pei^1

Department of Thermal Science and Energy Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, China^1

Department of Mechanical Engineering, Sana'a University, Sana'a, Yemen^2

关键词: Different sizes;    Economic feasibilities;    Integrated designs;    Levelized electricity cost;    Linear fresnel reflector (LFR);    Solar integrations;    Solar thermal power plants;    Tri-generation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/556/1/012023/pdf
DOI  :  10.1088/1757-899X/556/1/012023

来源: IOP

【 摘 要 】

The present work provides an economic feasibility and annual performance of integrated linear Fresnel reflector gas turbine trigeneration power plant (LFR-GTPP) that is progressively being installed to produce electricity, steam and chilled water. In order to pinpoint the best integration mode, different sizes of gas turbine and solar collector's area have been examined and presented. Thermoflow software was used for evaluating the performance of each integrated design under consideration. The optimal solar integration sizes have been determined. Moreover, reduction in CO2 emissions due to integrating the LFR system is estimated with respect to that of the conventional trigeneration plant. For the considered trigeneration plant (that is required to produce 120.5 MW of steam, and 2500kg/s of chilled water), the study revealed that LFR-GTPP with gas turbine sizes less than 190 MWe capacities have more economic feasibility and sufficient ability for utilizing solar energy. The levelized electricity cost (LEC) for the (LFR-GTPP) varied between 4.28 US and 5.6 US/kWh. Furthermore, the study revealed that integrating LFR system with a conventional gas turbine trigeneration power plant in Sun Belt regions leads to a considerable avoidance in CO2 emissions compared to the conventional trigeneration plant.