| Simulation, Optimization and Techno-Economic Evaluation of a Photovoltaic Hydrogen Fuel Cell Hybrid Power System |
| کد مقاله : 1064-THFC |
| نویسندگان |
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کیا نظیفی فرد * موسسه عالی آموزش و پژوهش مدیریت و برنامه ریزی، تهران، ایران |
| چکیده مقاله |
| Rapidly increasing energy demand along with environmental concerns are among the major drivers for adoption of renewable and low-carbon energy technologies. A Hybrid Power System (HPS) consists of two or more power sources and is considered a reliable power supply solution that can mitigate the intermittency of output power from renewable energy sources as well as the need for large energy storage systems. Hydrogen which is primarily produced by the electrolysis of water as an environmentally friendly and clean process, is a sustainable energy carrier that can be efficiently converted into electric power and as a result is used as an energy storage solution for intermittent renewable energy sources. In this study a hybrid PV-fuel cell system is simulated and optimized for a residential building located in the city of Kashan using Homer Pro software. In addition, an economic evaluation of the system is presented. The proposed HPS is based on hydrogen technology and consists of polymer electrolyte membrane (PEM) fuel cell, a hydrogen storage unit (tanks) and hydrogen production unit (electrolyzer) which operates by excess electric power from the PV system. The HPS is simulated and optimized by minimizing the net present cost of the system. The optimal HPS architecture for meeting the electrical load of the residential building with the peak load of 74.1 KWh and average daily load of 749.51 KWh/day is as follows: 577 kW of PV and 100 kW of fuel cell capacity. Power output from the fuel cell, rated at 100 kW using stored hydrogen as fuel, is 253,813 kWh/yr. In addition the total hydrogen production of the electrolyzer is 15223 Kg/yr. Results of the financial evaluation of the HPS showed that the levelized cost of electricity for the system is about 0.51 $/KWh. Sensitivity analysis showed the system LCOE is sensitive to variations in the discount rate. Although PV-FC HPS has higher initial capital, it has about 80% and 120% lower operating cost relative to PV-diesel-battery and diesel generators respectively and LCOE of PV-FC is lower than PV-diesel-battery and diesel generators. In addition, utilizing the proposed PV-FC HPS can lead to an estimated reduction of about 0.156 ton of CO2 per year when operating off-grid. Although the initial investment cost for PV-FC is high, lower LCOE and zero CO2 emission increase the economic viability of the system. Rapid development of fuel cell technologies will make them more cost efficient to be utilized alongside intermittent renewable energy sources in hybrid power systems to supply clean, sustainable and zero carbon power. |
| کلیدواژه ها |
| Fuel Cell, PEM, Hybrid Power System, Optimization, Homer Pro, LCOE |
| وضعیت: چکیده برای ارائه به صورت پوستر پذیرفته شده است |