TECHNO-ECONOMIC ANALYSIS OF ORC R245FA PARABOLIC DISH-IIR CSP FOR 1 MWE PLANT IN KUPANG
DOI:
https://doi.org/10.35814/2was8h30Keywords:
Concentrating Solar Power, Indirect Illumination Receiver, Organic Rankine Cycle, R245fa, analisis tekno-ekonomiAbstract
Concentrating solar power has strong potential in Indonesia, especially in regions with high irradiation and relatively high electricity generation costs. This study evaluates the technical design and economic feasibility of a parabolic-dish Concentrating Solar Power (CSP) system with an Indirect Illumination Receiver (IIR) integrated with an Organic Rankine Cycle (ORC) using R245fa as the working fluid for a 1 MWe output. The research procedure included site selection based on Global Tilted Irradiation (GTI) and generation cost, thermodynamic simulation using Cycle Tempo 5.0, heat-exchanger design using HTRI, and economic analysis based on electricity tariff projection and EPC cost. The results indicate that Kupang, East Nusa Tenggara, is the most promising location, with an average GTI of 5.84 kWh/m²/day. The optimum operating case was obtained at 6.95 bar, R245fa temperature of 74.99 °C, R245fa mass flow rate of 70.30 kg/s, gross efficiency of 24.08%, and net efficiency of 20.39%. The CSP field area required for 24-hour operation was estimated at 21,941.24 m². The economic analysis suggests that the system is feasible for further development, particularly in eastern Indonesia, with a reference electricity tariff of IDR 1,629/kWh and an average EPC cost of USD 2,075.95/kWe.
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