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首页> 外文期刊>Renewable energy >Energetic and exergetic performance of a novel polygeneration energy system driven by geothermal energy and solar energy for power, hydrogen and domestic hot water
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Energetic and exergetic performance of a novel polygeneration energy system driven by geothermal energy and solar energy for power, hydrogen and domestic hot water

机译：通过地热能和太阳能的电力，氢气和国内热水驱动的新型多元能源系统的精力充沛和前进性能

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摘要

The present study develops a novel energy system comprising a double -flash based geothermal cycle, a solar-driven cycle, a polymer electrolyte membrane (PEM) system and a waste heat recovery system. The proposed system can be used to generate electricity, produce hydrogen, space heating and prepare domestic hot water, and the solar-driven cycle can be turned off as a double -flash geothermal system when there is no solar radiation and the storage is empty. The unique aspect of the proposed system lies in the coupling relationship between the three turbine units in clear weather. Energy and exergy analyses are carried out to determine the irreversibilities, show the performance of the system and compare it with sole geothermal system. The results show that the proposed system has satisfactory thermodynamic properties. Under the reference conditions, the proposed energy system has a 148.3% (from 6171 kW to 15321 kW) increase in power generation compared with a sole double -flash geothermal system; under the optimal working conditions, the energy efficiency and exergy efficiency of the system can reach 29.6% and 29.2%, respectively. Furthermore, the effect of changing various system parameters on the energy and exergy efficiencies of the entire system and its subsystems were also studied.(c) 2021 Elsevier Ltd. All rights reserved.
机译：本研究开发一种新型能量系统，包括基于双重的地热循环，太阳能驱动的循环，聚合物电解质膜（PEM）和废热回收系统。该提出的系统可用于产生电力，产生氢气，空间加热并制备国内热水，并且当没有太阳辐射时，太阳能驱动的循环可以作为双重地热系统关闭，并且存储空间。所提出的系统的独特方面在于三个涡轮机单元在晴朗的天气中的耦合关系。进行能量和漏洞分析以确定不可逆转录，显示系统的性能，并将其与唯一地热系统进行比较。结果表明，该系统具有令人满意的热力学性质。在参考条件下，与唯一的双重地热系统相比，所提出的能量系统的发电量增加了148.3％（从6171千瓦至15321千瓦）;在最佳的工作条件下，系统的能效和高效效率分别达到29.6％和29.2％。此外，还研究了改变各种系统参数对整个系统及其子系统的能量和漏洞效率的影响。（c）2021 elestvier有限公司保留所有权利。

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  • 来源
    《Renewable energy》 |2021年第9期|318-336|共19页
  • 作者

    Li Tailu; Qin Haosen; Wang Jianqiang; Gao Xiang; Meng Nan; Jia Yanan; Liu Qinghua;

  • 作者单位

    Hebei Univ Technol Sch Energy & Environm Engn Tianjin Key Lab Clean Energy & Pollutant Control Tianjin 400301 Peoples R China;

    Hebei Univ Technol Sch Energy & Environm Engn Tianjin Key Lab Clean Energy & Pollutant Control Tianjin 400301 Peoples R China;

    Hebei Univ Engn Coll Energy & Environm Engn Handan 056038 Peoples R China;

    Hebei Univ Technol Sch Energy & Environm Engn Tianjin Key Lab Clean Energy & Pollutant Control Tianjin 400301 Peoples R China;

    Hebei Univ Technol Sch Energy & Environm Engn Tianjin Key Lab Clean Energy & Pollutant Control Tianjin 400301 Peoples R China;

    Hebei Univ Technol Sch Energy & Environm Engn Tianjin Key Lab Clean Energy & Pollutant Control Tianjin 400301 Peoples R China;

    Hebei Univ Technol Sch Energy & Environm Engn Tianjin Key Lab Clean Energy & Pollutant Control Tianjin 400301 Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Geothermal energy; Solar energy; Hydrogen production; Energy; Exergy; Efficiency;

    机译：地热能;太阳能;氢气生产;能量;漏洞;效率;

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