2021 Volume 33 Issue 1 Pages 1-39
The Stirling engine has been expected to be a "dream engine" able to enhance power-generation efficiency close to that of Carnot cycle for 200 years，but yet to prevail for practical use. In 2015，Professor Jürgen Kleinwächter published the low-temperature Stirling engine Sunpulse500 (with heat-source temperature of 200℃ and 25℃，on the high- and low-temperature side，respectively，and with power-generation efficiency of 12%) after many years of research.
We have developed a new low-temperature Stirling engine (detailed design level) with reference to the Sunpulse 500，incorporating the latest advanced technologies such as low friction-coefficient materials and highly heat-insulating materials. Power-generation output of 308 W and efficiency of 11.4% should be achieved with heat-source temperature of 95℃ and 5℃，on the high and low temperature side，respectively，in our estimation.
Excellent in power-generation efficiency while lowering energy loss and device，operation，and heat-source costs，the Low-temperature Stirling engine should use a heat source with low exergy and a low-grade heat source，to reduce power-generation cost with price competitiveness against other power generation equipment and power generation methods.
