Ma Shuaijie, Lin Wensheng. Optimization and Analyses of an Organic Rankine Cycle Combined System Utilizing the Waste Heat of Gas Turbine Exhaust[J]. Journal of refrigeration, 2019, 40(6).
Ma Shuaijie, Lin Wensheng. Optimization and Analyses of an Organic Rankine Cycle Combined System Utilizing the Waste Heat of Gas Turbine Exhaust[J]. Journal of refrigeration, 2019, 40(6). DOI: 10.3969/j.issn.0253-4339.2019.06.039.
In this study a combined organic Rankine cycle system is proposed to utilize the waste heat of gas turbine exhaust. The thermodynamic properties of the system are analyzed in detail. Taking an engine-driven gas compressor station as an example
13 working fluids were compared and the parameters were determined to maximize the net output work using MATLAB and REFPROP 9.0. The results show that when toluene
R141b
and acetone are selected as the working fluids of the three subsystems
the system can achieve a maximum net output power of 1 587 kW
thermal efficiency of 20.26%
and exergy efficiency of 42.68%. The maximum net output work is 23.33% higher than that of a single-stage cycle. The exergy loss of components is analyzed and it is concentrated in the evaporator