May 24, 2024
Shoaib Khanmohammadi

Shoaib Khanmohammadi

Academic rank: Associate professor
Address: Department of Mechanical Engineering, Kermanshah University of Technology, Kermanshah, Iran
Education: Ph.D in Mechanical Engineering
Phone: 0833-8305001
Faculty: Faculty of Engineering

Research

Title
Two-objective optimization of a transcritical carbon dioxide based Rankine cycle integrated with evacuated tube solar collector for power and heat generation
Type Article
Keywords
Evacuated tube solar collector Transcritical Rankine cycle CO2 Two-objective optimization Decision variables
Researchers Onder Kizilkan، Shoaib Khanmohammadi، Hisoshi Yamaguchi

Abstract

for power and heat generation is carried out. With Engineering Equation Solver (EES), the monthly thermodynamic performance of the integrated system is determined. Results show that the exergy rate of recovered heat in the winter is 0.029 kW, which is relatively low due to low solar intensity for the winter season (512 W/m2). The results revealed that the highest overall energy efficiency of the system takes place in July, and the highest overall exergy efficiency is calculated for August. The results of the parametric study indicate that changing the considered decision parameters has different effects on the recovered heat and net output power of the integrated system. Hence, a two-objective optimization with net output power and recovered heat as optimization targets is performed. In order to achieve the optimization solutions, the objective functions are defined seasonally. The results of optimum states regarding the concept of ideal point show that the best performance of the system is in summer with 0.262 kW for net power output and 0.921 kW for recovered heat.