Basic Studies on Stirling Engine Using Combustion Heat of Biomass (Part 1)

Output Power of Displacer Type Model Built-in Regenerator

Abstract

Stirling cycle engine has a unique element of regenerator. It is a major attractive point of Stirling cycle engine that it has a possibility of higher thermal efficiency because of its regenerative effect. In case of low pressure operation in working fluid, its aerodynamic friction caused by flowing through regenerator matrix is a main power loss. This report described power output characteristic about a model which had a displacement piston built-in regenerator to get more power through decreasing aerodynamic friction losses. The regenerator was so effective and the engine produced more power than a previous trial-made model without a regenerator.