DESIGN AND PARAMETRIC OPTIMIZATION OF AN ORGANIC RANKINE CYCLE POWERED BY SOLAR ENERGY

摘要: This study presents the simulation and performance analysis of a regenerative superheated Organic Rankine Cycle (ORC). To this scope, anew model has been developed. The is based on zero-dimensional energy mass balances for all components system. Shell tube heat expanders with single shell double pass have chosen. Pump expander considered only form thermodynamic point view, constant compressor expansion efficiency. simulations carried out in order to find different optimization criteria use as preliminary design tools, especially organic fluid choice exchanger design. Firstly, ORC performances evaluated medium, varying temperature source. global efficiency plant, net electric power generation volumetric ratio evaluation parameters. results show that two hydrocarbons demonstrate good low, medium high source, namely Isobutene, n-Butene; R245fa can add them exploitation source up 170°C. Additional discover an criterion plant first one by following parameters: length, number diameter. Then was also performed using Golden Search technique. total cost objective functions. With respect function, higher boiling transfer area economical benefit. optimal configuration, compared initial one, shows increase incomes mechanical equal 60.1 48.2% respectively, against decrease 10.9%.