吸收式制冷机
液化
有机朗肯循环
制冷
地热能
废物管理
地热能
火用
液态氢
可用能
环境科学
工艺工程
朗肯循环
性能系数
余热
地温梯度
氢
化学
工程类
热力学
机械工程
热泵
物理
热交换器
功率(物理)
有机化学
地球物理学
作者
Saman Faramarzi,Sajjad Gharanli,Mostafa Mohammadi,Amin Rahimtabar,Ali J. Chamkha
出处
期刊:Energy
[Elsevier]
日期:2023-11-01
卷期号:282: 128891-128891
被引量:5
标识
DOI:10.1016/j.energy.2023.128891
摘要
Liquid hydrogen is a solution to store and transport electricity which is produced by renewable energy sources like geothermal energy. In this paper, an organic Rankine cycle (ORC) and proton membrane electrolyzer (PEM), water-ammonia absorption refrigeration cycle, and a hydrogen liquefaction cycle are simulated and analyzed to store the geothermal energy as liquid hydrogen. The power produced by the ORC is used to produce hydrogen gas in PEM, additionally, cold energy from the absorption refrigeration cycle is used to precool the hydrogen gas to −26.9 °C. The novelty of this study is based on using cold energy from an absorption refrigeration system in the pre-cooling part of the hydrogen liquefaction cycle to convert geothermal energy to liquid hydrogen, this method leads to a reduction in power consumption. Specific energy consumption (SEC), figure of merit (FOM), and coefficient of performance (COP) of the final case in this study are 8.81 kWhkg−1, 0.83, and 0.49 respectively. The proposed cycle is compared with similar cycles available in the literature. The specific liquefaction cost (SLC) is 1.84 $kg−1. The minimum selling price is estimated to be 2.11 $kgLH2−1 with the payback time of three years.
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