Assessment of a novel multi-generation solar CPV/T system combining adsorption and organic rankine cycle subsystems
Assessment of a novel multi-generation solar CPV/T system combining adsorption and organic rankine cycle subsystems
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DOI：
10.1016/j.solener.2022.03.024
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发表时间：
2022-04
期刊：
影响因子：
6.7
通讯作者：
Ibrahim Albaik;Yassir A. Alamri;M. B. Elsheniti;R. AL-Dadah;S. Mahmoud;M. Ismail
中科院分区：
文献类型：
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作者：
Ibrahim Albaik;Yassir A. Alamri;M. B. Elsheniti;R. AL-Dadah;S. Mahmoud;M. Ismail
基于可再生能源的多输出混合动力系统在提高能源利用效率方面具有很大潜力。在这项研究中，介绍了集中式光伏热能(CPV/T)系统与吸附-有机朗肯循环(ORC)集成系统的性能评估，其中对发电、制冷、加热和淡化水的不同集成方案进行了数学研究和实验验证。吸附热泵的蒸发器与ORC的冷凝器耦合，以降低ORC中的热排出温度，从而提高ORC的热力效率。研究了使用菲涅尔聚光器和不同均质器类型的多结太阳能电池的CPV/T，以在可能的最高温度下产生电能和热能，用于驱动吸附系统(AD)和ORC。通过在折射式均质器中使用减反射膜，光学效率提高到87.5%。结果表明：(1)在蒸发温度为15℃时，AD系统的总效率最高可达68.47%；(2)该集成系统仅用38.4万平方米的表面积就可提供13.08千瓦的电力、79.17升/天的饮用水、2.06千瓦的制冷功率或0.8千瓦的加热功率。
Renewable energy based multi-output hybrid systems have a great potential to augment the energy utilization efficiency. In this study, performance evaluation of a concentrated photovoltaic thermal (CPV/T) system coupled with an integrated adsorption-Organic Rankine Cycle (ORC) system is introduced in which different integration options to produce power, cooling, heating, and desalinated water are mathematically investigated and experimentally validated. The evaporator of the adsorption heat pump is coupled with the condenser of the ORC in order to lower the temperature at which heat is rejected in the ORC leading to higher ORC thermodynamic efficiency. CPV/T using a Fresnel concentrator and multi-junction solar cells with different homogenizer types is investigated to produce electricity and thermal energy at the highest possible temperature that can be used to drive the adsorption system (AD) and ORC. By using antireflective coating in the refractive homogenizer, the optical efficiency is increased to 87.5%. Results showed (i) maximum overall efficiency of 68.47% can be achieved at evaporation temperature of 15 °C in the AD system and (ii) the integrated system can provide electricity of 13.08 kW, potable water of 79.17L/day, cooling power of 2.06 kW or heating power of 0.8 kW using only 38.4 m2of surface area.