Techno economic analysis of thermochemical energy storage and transport system utilizing “Zeolite Boiler”: case study in Sweden
Techno economic analysis of thermochemical energy storage and transport system utilizing “Zeolite Boiler”: case study in Sweden
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DOI：
10.1016/j.egypro.2018.08.174
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发表时间：
2018-09
期刊：
影响因子：
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通讯作者：
Shoma Fujii;Yuichiro Kanematsu;Yasunori Kikuchi;T. Nakagaki;J. Chiu;V. Martin
中科院分区：
文献类型：
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作者：
Shoma Fujii;Yuichiro Kanematsu;Yasunori Kikuchi;T. Nakagaki;J. Chiu;V. Martin
利用沸石蒸汽吸附和解吸循环的热化学能量存储和传输系统是解决工业余热与热需求不匹配的方法之一。为了利用 13X 沸石产生 60 °C 热水，开发了采用移动床和间接热交换器的沸石锅炉。将加压水加热，并将闪蒸蒸汽注入沸石床进行吸附。开发了求解热质量守恒方程的准二维模型，从而对该沸石锅炉进行了性能表征。开发的仿真模型也用于预测采用移动床的加热装置的性能。基于此计算，我们对当地钢铁厂和酒店之间的热传输进行了案例研究，并确定了所有相应的成本。平准化能源成本 (LCOE) 约为 60 欧元/MWh，与传统颗粒锅炉的成本相当。敏感性分析显示，更便宜的运输成本和一辆拖车上更大的沸石容量对 LCOE 的影响相当。
Thermochemical energy storage and transport system utilizing zeolite steam adsorption and desorption cycle is one of the methods to resolve the mismatch between industrial surplus heat and heat demands. To generate 60 °C hot water utilizing zeolite 13X, zeolite boiler employing moving bed and indirect heat exchanger was developed. Pressurized water is heated up and flash steam is injected into the zeolite bed for adsorption. A quasi – 2D model solving heat and mass conservation equations was developed, leading to a performance characterization of this zeolite boiler. The developed simulation model was used to predict performance of a heat charging device employing moving bed as well. Based on this calculation, a case study, heat transporting between a local steel works and a hotel was examined and all corresponding cost were fixed. The Levelized Cost of Energy (LCOE) results in around 60 €/MWh which is comparable cost against conventional pellet boiler. Sensitivity analysis showed both of cheaper transportation cost and larger zeolite capacity on the one trailer give a comparable impact on the LCOE.