우분 고체연료 연소 보일러와 유기랭킨사이클을 결합한 난방 및 발전 시스템의 수치해석 모델 개발

다국어 초록 (Multilingual Abstract)

The necessity of energy utilization using livestock manure has been proposed with the decrease in domestic agricultural land. Livestock manure solid fuel has been investigated as a promising energy resource owing to its convenient storage and use in agricultural and livestock fields. Additional electricity production is possible through the integration of a biomass combustion boiler with the organic Rankine cycle (ORC).
In this study, a mathematical system model of the cattle manure solid fuel boiler integrated with the ORC was developed to analyze the components performance under variable operating conditions. A sensitivity analysis was conducted to confirm the electrical efficiency of the ORC turbine and the applicability of this system. The minimum required waste heat recovery rate was derived considering the system marginal price and levelized cost of electricity of the ORC. The simulation results showed that, in Korea, more than 77.98% of waste heat recovery and utilization in ORC turbines is required to achieve economic feasibility through ORC application.