有机液体与储氢材料组成的浆液储氢体系的能量分析

对C6H6/C6H12-LaNi5/LaNi5H6-H2组成的浆液储氢体系的储、放氢过程进行了能量衡算,提出了两种车载氢源系统的概念设计:随车脱氢和随车加氢-脱氢系统。考察了两种车载氢源系统的脱氢转化率和系统运行过程中放出的废热利用率对整个车载氢源系统热效率的影响,并就两种车载浆液氢源系统与氢内燃机或燃料电池构成的氢能汽车动力系统的能效进行了评估。研究表明,无论是采用氢内燃机还是燃料电池作为氢能汽车的动力驱动方式,车载浆液氢源系统在能效上是经济、可行的。

15-19.ENERGY ANALYSIS OF THE SLURRY HYDROGEN STORAGE SYSTEM FORMED BY THE LIQUID ORGANIC AND METAL HYDRIDES

The thermal efficiency of the slurry hydrogen storage system formed by C6H6/C6H12 and LaNi5/LaNi5H6 was analyzed.Two conceptive designs of the on-board hydrogen sources based on the slurry hydrogen storage systems,dehydrogenation system and hydrogenation-dehydrogenation system,were proposed.The influences of the conversion rates of the dehydrogenation of cyclohexane and the utilization ratios of the exhausted waste heat produced in the systems to the systematic thermal efficiencies were also investigated.The total energy efficiencies of the hydrogen-powered vehicles,which were driven by the hydrogen engine or the fuel cell on board equipped with a slurry hydrogen storage source,were estimated.In terms of our systematic energy efficiency analyses,on-board slurry hydrogen storage system is economically practicable with a promising perspective in the near future.