Abstract
In this study, a novel concept of Organic Rankine Cycle (ORC) power generation from industrial waste heat recovery (IWHR) combined with solar hot water system (SHWS) by using vapor compression heat pump (VCHP) as heating booster was proposed. The system is mathematically modeled and simulated to evaluate the economics and the environmental impact of the system. The weather condition of Phitsanulok, Thailand was taken as the input data of the simulations. The results of the evaluation showed that the more number of solar collectors is, the more electricity the system can generate. For instant, when the number of the solar collectors is 700 units, the system can produce 47.0 MWh/Year of electricity with the Levelized Electricity Cost (LEC) and payback period of 0.098 USD/kWh, and 22.5 Year, respectively. In term of the environmental impact analysis, the system can reduce the CO 2 emission by approximately 25.8 Ton CO 2 eq./Year.
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