文章基本信息

标题：Development of Reciprocating Heat Engine Using Shape Memory Alloy
本地全文：下载
作者：Kenji KANEKO ; Kazuki ENOMOTO
期刊名称：Journal of Environment and Engineering
电子版ISSN：1880-988X
出版年度：2011
卷号：6
期号：1
页码：131-139
DOI：10.1299/jee.6.131
出版社：The Japan Society of Mechanical Engineers
摘要：This research aims at developing the heat engine system using Shape Memory Alloy (SMA) wires, which work by alternating supply of hot/cold water through the newly developed automatic valves. The SMA wire is connected to the chain and sprocket system having the ratchet type bearing and the spindle with the flywheel. The valves for supplying hot/cold water to the SMA wires are driven by the flywheel, so no outside power is necessary. Output power of the developed heat engine with two φ 0.3 mm SMA wires is 0.1W at 30∼40 rpm. The SMA wire used in the developed heat engine was produced by the Furukawa Electric Co., Ltd.. The wire shows the fatigue life of more than 10⁵ cycles under conditions of 150 MPa in loading and heating/cooling cycle rate of 0.5 Hz in the cyclic transformation fatigue tests. The heat engine system works without any adjusting process of a length of SMA wire and water supplying timing. The stress of the SMA wire is kept to be rather higher during working because that the engine has no crank system. So, the developed heat engine system is hopeful to use in recovering energy from waste hot water.
关键词：Energy Conversion;Waste Heat Recovery;Shape Memory Alloy;Phase Transformation;Cyclic Transformation Fatigue;Ratcheting Drive System;Self-Drive Rotational Valves;Heat Engine