Experimental study on the hydrogen charge and discharge rates of metal hydride tanks using heat pipes to enhance heat transfer

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题名:	Experimental study on the hydrogen charge and discharge rates of metal hydride tanks using heat pipes to enhance heat transfer
作者:	鍾志昂;Chung, C.A.;Yang, Su-Wen;Yang, Chien-Yuh;Hsu, Che-Weu;Chiu, Pai-Yuh
贡献者:	工學院能源工程研究所
关键词:	absorption;Alternative fuels. Production and utilization;Applied sciences;Charge;Charge transfer;cooling;desorption;Discharge;Energy;Energy. Thermal use of fuels;Exact sciences and technology;Fuels;heat exchangers;Heat pipe;Heat pipes;Heat transfer;hydrides;Hydrogen;Hydrogen storage;Metal hydride;pipes;powders;Storage tanks;Tanks;Theoretical studies. Data and constants. Metering
日期:	2013-01-01
上传时间:	2026-04-23 11:59:05 (UTC+8)
出版者:	Elsevier BV;Kidlington: Elsevier Ltd
摘要:	摘要： ► A metal hydrogen storage vessel equipped with finned heat pipes. ► Effects of heat pipes were shown experimentally using LaNi5 as the storage media. ► The absorption time was reduced more than half compared to that without heat pipe. ► The desorption time for hydrogen discharge was increased by 44%. Heat transfer is a critical factor affecting the performance of metal hydrogen storage tanks. Many studies have proposed inner tubular heat exchangers for increasing the heat transfer rate between the metal powders and the exterior environment of the tanks. However, connecting cooling and heating fluid tubes to the storage tanks can be a tedious task, especially for large-scale hydrogen storage systems with a large array of tanks. This study presents a novel design for a metal hydride vessel equipped with heat pipes. These heat pipes enhance heat transfer for hydrogen charge and discharge without the need for tubing through the metal bed. This study experimentally demonstrates the effects of using heat pipes to enhance heat transfer in a hydrogen storage tank using LaNi5 as the storage media and comparing tanks with and without heat pipes. Results show that heat pipes can enhance the hydrogen storage rates in both absorption and desorption. The absorption time was reduced more than half with a 10atm hydrogen supply pressure, and the desorption time for hydrogen discharge at 1L/min was increased by 44%. 出版者： Kidlington: Elsevier Ltd 出版日期： 2013-03-01 出處： Applied energy, 2013-03, Vol.103, p.581-587 版權： 2012 Elsevier Ltd 版權： 2014 INIST-CNRS 識別號： ISSN: 0306-2619 識別號： EISSN: 1872-9118 識別號： DOI: 10.1016/j.apenergy.2012.10.024 識別號： CODEN: APENDX
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