NOVEL THERMAL ENGINE USING METAL HYDRIDE

被引:20
作者
NOMURA, K
ISHIDO, Y
ONO, S
机构
[1] Department of Energy Chemistry, The National Chemical Laboratory for Industry, Shibuya-ku, Tokyo
来源
ENERGY CONVERSION | 1979年 / 19卷 / 01期
关键词
Energy conversion; External combustion engine; LaNi[!sub]5[!/sub; Metal hydride; Thermal engine; Waste heat recovery;
D O I
10.1016/0013-7480(79)90016-0
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
A unique and compact prototype piston engine using LaNi5Hx as an energy conversion medium, was developed. It consists of two metal hydride containers, each having about 700 g (1.6 moles) of LaNi5Hx powder, a cylinder and piston, and two electromagnetic valves which work and synchronize with the movement of the piston. When one of the containers was heated in a hot water bath (80°C) and the other was cooled down to 20°C, the piston was kept working by the hydrogen pressure difference of about 10 kg/cm2 between them. On the average, 28 W of mechanical power output was generated for two minutes. The theoretical conversion efficiency is 15.5%, and the roughly estimated experimental value is 7.7%. © 1979.
引用
收藏
页码:49 / 57
页数:9
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