This work addresses the optimization of ammonia–water absorption cycles for cooling and refrigeration applications with economic and environmental concerns. Our approach combines the capabilities of process simulation, multi-objective optimization (MOO), cost analysis and life cycle assessment (LCA). The optimization task is posed in mathematical terms as a multi-objective mixed-integer nonline...

Thermodynamic analysis of a novel combined system which is combination of methane fired gas turbine cogeneration system (CGAM) with a supercritical CO2 recompression Brayton cycle (SCO2) and an Organic Rankine Cycle (ORC) is reported. Also, a comprehensive parametric study is performed to investigate the effects on the performance of the proposed system of some important parameters. Finally, a ...

Abstract. A problem of the model-based optimization of fed-batch cultivation process is solved for two control actions: feed-rate and dilution rate. A goal of optimization is to maximize the yield of cells’ biomass at the end of cultivation cycle. Two alternative optimization methods, based on the maximum principle of Pontryagin and the finite dimensional optimization approach, are developed fo...