Stirling Engines of Saitama University



The Dynamics of Machinery Laboratory (Prof. Iwamoto), Department of Mechanical Engineering, Faculty of Engineering, Saitama University had studyed and developed the Stirling engines till March 1998. But the laboratory is not studying the Stilring engine now, because Prof. Iwamoto has retired from Saitama University on March 31, 1998.
Follows are the web pages which was made by Iwamoto's students in these days.

Welcome to Stirling engines of Saitama university page !

...The main field of our laboratory research regerds STIRLING ENGINE. Stirling engines are able to use any heat source and are easy on the environment. From the characteristics of Stirling engines to the research contents of our laboratory, we may introduce them widely with this home page.

Contents of research

@At present, the world has important problems such as energy and the environment, thus we need power source that is clean and has a low impact on the environment. Fossil fuels will be drying up in near future. Because off this, we will need new power sources that use clean energy such as solar, windpower, waterpower, geothermal heat and the like. We are researching low temperature difference Stirling engines which use low grade heat sources such as hot springs or exhaust gases, to solve these problems.
@The power of low temperature Stirling engine which use low heat source is less than ones that use higher heat sources, and it's heat efficiency to be low. The earth has alot of low temperature heat sources, we think that using this energy effectively is going to be extremely significant in the future.
@Can Stirling engines actually use every heat source? And in that case, are there technical problems?

  • Introduction
    Introduction of Stirling engine for beginner
    This page made for people who have questions such as "What's a Stirling engine?"

  • Low temperature difference Stirling engines
    1 kW class low temperature difference Stirling engine
    We introduce a high powered low temperature difference Stirling engine.
    300 W class low temperature difference Stirling engine
    We introduce a low temperature difference Stirling engine that uses hot spring heat as low temperature heat source.
    Small alpha-type low temperature difference Stirling engine
    This is the first prototype of the alpha-type low temperature difference Stirling engine.
    10 W class low temperature difference Stirling engine
    This is a engine for getting the basic characteristics of the low temperature Stirling engines.
    Low temperature difference solar Stirling Engine
    We introduce a low temperature difference Stirling engine which uses solar energy as heat source.

  • High temperature difference Stirling engines
    Vertical two-piston-type Stirling engine [NSE]
    This is a 100W class Stirling engine which uses a high temperature heat source.
    The Stirling engine that use exhaust gas as the heat source
    This Stirling engine runs by exhaust gas of an internal combustion engine.
    The horizontally opposed type Stirling engine
    Various experiments Have been with this engine.

  • New elemental technology
    The one-way-type piston ring
    This is ideal piston ring that have little leakage and friction.

  • Analysis methods
    Analysis of Stirling Engines
    If you are interested in the analysis of Stirling engines, please visit here.
    Analysis programs
    You can calculate simply examples by JAVA.

  • Model Stirling engines
    Various models of the Stirling engine
    Those are our self-made model Stirling engines.
    Models of the Stirling engine "Students Works 1996"
    Stirling engines made by 1996's students.

  • Other information
    Introduction of our laboratory
    The members who made this web pages are introduced here.

    Return to Stirling Engiene Home Page Academic Edition

    Koichi Hirata (