چكيده به لاتين
The problems of municipal waste accumulation on the one hand and increasing energy consumption on the other hand have led to the focus of recent research in the field of renewable energy on the methods of energy extraction from this precious source. In the present study ، the modeling and optimization of the system of cogeneration power ، heat and carbon dioxide gas by gasification from municipal waste fuel and then methane production for industrial greenhouse use. By designing the proposed system in Aspen Plus software environment and performing coding sensitivity analysis in Matlab software environment, five variables of gasification temperature, gasification pressure, methanogenic temperature, methanogenic pressure and vapor to biomass ratio as design variables. were chosen. Optimization results using Genetic Algorithm and considering two objective functions of exergy efficiency and net present cost have shown that at optimum operating point, the design parameters of gasification temperature C913 ° C, gasification pressure 1.9 bar, methane temperature °. C224, methane strain of 11.6 bar6 and 0.48 STBR have been recorded which result in exergy efficiency of 32.11%, $ 718697 annualized relative return and 4.47 year return on investment. Also under optimum operating conditions, net output power, net heat load and carbon dioxide absorbed by separation units were obtained 335 kW, 377.77 kW and 339 kW / h respectively, which indicate 20.97% electrical efficiency and efficiency. Co-production is 44.49%. Finally ، by examining the performance of the optimized system for setting up an industrial greenhouse ، lettuce cultivation with 254132 m ^ or tomato cultivation with 25280 m ^ can be utilized. In both scenarios, the surplus of electricity and heat is spent on the office-building units in the suburbs of the greenhouse and the carbon dioxide surplus is deposited after the accumulation of carbonated beverage plants.
