Thermal Performance and Cost of Organic Rankine Cycle System for Mixed Biomass
With the increasing severity of global warming,reducing greenhouse gas emissions has received widespread attention from society,among which livestock manure pollutants are one of the main sources.In order to process livestock and poultry manure more cleanly and effectively,biomass fuel mixed with plants and livestock and poultry manure is used for combustion and power generation.While reducing greenhouse gas emissions,its calorific value is reused for power generation.Organic Rankine cycle boilers with cyclohexane as the organic working fluid were designed for different evaporation temperatures,and the optimal operating range was obtained by combining thermal performance and cost.Meanwhile,by calculating four types of mixed biomass fuels,the impact of fuels with different calorific values on the speed of fecal treatment was obtained.Research has shown that the output power and efficiency of the system increase with the increase of evaporation temperature,and the optimal evaporation temperature range is 250-260℃.In terms of fuel selection,when the rated thermal power of the boiler is constant,choosing a compound biomass fuel made by mixing fruit tree residues with animal manure has a higher cost-effectiveness.
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