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Thermodynamic modeling and analysis of a solar and geothermal assisted multi-generation energy system
Energy Conversion and Management ( IF 10.4 ) Pub Date : 2021-05-06 , DOI: 10.1016/j.enconman.2021.114186
Ozan Sen , Omer Faruk Guler , Ceyhun Yilmaz , Mehmet Kanoglu

A geothermal and solar energy-assisted multi-generation energy system supplying electricity for the residences is modeled and analyzed. The system considered is a novel configuration consisting of a binary geothermal power plant and a parabolic trough concentrating solar power plant for electricity production and water electrolysis and fuel cell unit for hydrogen storage and utilization. Thermodynamic performance evaluation of the system is performed using Afyonkarahisar's geothermal and solar energy values. In Afyonkarahisar province, geothermal water temperature ranges between 70 and 130 °C and mass flow rate between 70 and 150 kg/s. Also, solar radiation incident varies between 300 and 1000 W/m2. The geothermal and solar power plants could produce 2900 kW power. If this is used entirely for hydrogen production, 0.0185 kg/s hydrogen could be produced. One can produce 1615 kW power by using this hydrogen in the fuel cell. The overall system's energy and exergy efficiencies are calculated to be 5.90% and 18.99%, respectively. The system's parametric study is performed considering geothermal resource temperatures and solar radiation values on the power output and hydrogen production.



中文翻译:

太阳和地热辅助多代能源系统的热力学建模和分析

为住宅供电的地热和太阳能辅助多代能源系统进行了建模和分析。所考虑的系统是一种新颖的配置,由二元地热发电厂和抛物槽式聚光太阳能发电厂组成,用于发电和水电解,以及用于氢存储和利用的燃料电池单元。使用Afyonkarahisar的地热和太阳能值对系统进行热力学性能评估。在阿菲永卡拉希萨尔省,地热水温度在70至130°C之间,质量流率在70至150 kg / s之间。另外,太阳辐射入射在300至1000 W / m 2之间变化。地热和太阳能发电厂可产生2900 kW的功率。如果将其完全用于制氢,则可以产生0.0185 kg / s的氢气。通过在燃料电池中使用这种氢气,可以产生1615 kW的功率。整个系统的能源效率和火用效率分别为5.90%和18.99%。该系统的参数研究是在考虑地热资源温度以及太阳辐射值对功率输出和氢气产量的影响下进行的。

更新日期:2021-05-06
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