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首页> 外文期刊>Energy Conversion & Management >Hydrogen production using solid oxide electrolyzer integrated with linear Fresnel collector, Rankine cycle and thermochemical energy storage tank
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Hydrogen production using solid oxide electrolyzer integrated with linear Fresnel collector, Rankine cycle and thermochemical energy storage tank

机译：使用固体氧化物电解器与线性菲涅耳收集器，兰峰循环和热化学能量储存罐的氢气产生

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摘要

Hydrogen has been hailed as a fuel due to growing energy requirements, as well as environmental considerations. So far, no research has been conducted on the simultaneous use of linear Fresnel collector and solid oxide electrolyzer cell with thermochemical storage tanks to produce hydrogen. In this paper, a newly developed system with the purpose of producing a constant flow of hydrogen using solar energy is proposed. The system includes four main subsystems. These subsystems include linear Fresnel solar collectors, solid oxide electrolyzer cell, Rankine power generation cycle, and thermochemical energy storage unit. Modeling of subsystems is done using MATLAB and Aspen HYSYS software. The system is studied from the perspective of the first and second laws of thermodynamics. Also, the effect of thermal energy storage with different periods on the overall performance is investigated. Four thermal energy storage scenarios and their effect on energy and exergy efficiency, solar fraction, thermochemical storage tank dimensions, and auxiliary heater load variations are presented as results. The system is capable of producing 50.4 kg of hydrogen per hour. Results show that the Rankine cycle has the capability to provide 42.78% of the electrical power consumed by the electrolyzer. Also, with the increase of thermal energy storage period up to one year, the energy and exergy efficiencies will reach to 20.17% and 13.73%, respectively. In this case, 0.83 of the energy required for the system, is supplied by the solar energy.
机译：由于能量需求不断增长，以及环境考虑，氢气被称为燃料。到目前为止，还没有在同时使用具有热化学储罐的线性菲涅耳收集器和固体氧化物电解槽和固体氧化物电解槽来产生氢气的研究。本文提出了一种新开发的系统，目的是使用太阳能产生恒定的氢气流动。该系统包括四个主要子系统。这些子系统包括线性菲涅耳太阳能集热器，固体氧化物电解槽单元，朗肯发电循环和热化学能量存储单元。子系统的建模是使用Matlab和Aspen Hysys软件完成的。从热力学的第一和第二定律的角度研究了该系统。而且，研究了热能储存与不同时期对整体性能的影响。为结果提供了四种热能存储场景及其对能量和高效效率，太阳能分数，热化学储罐尺寸和辅助加热器负载变化的影响。该系统能够每小时生产50.4千克氢。结果表明，朗肯循环具有提供电解柜消耗的42.78％的电力的能力。此外，随着热能储存期长达一年的增加，能量和漏洞效率分别达到20.17％和13.73％。在这种情况下，系统所需的0.83个能量由太阳能提供。

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