This paper uses second-order software for evaluating five Stirling engine
parameter?s effect on its performance to select an appropriate configuration
with optimal dimensions for its use in a concentrated solar power plant.
Appropriate configuration, heater shape, bundle tube heat exchanger size,
and regenerator type and geometry are studied. Results show that Alpha type
Stirling engine is the most suitable for high-temperature differences,
U-shaped tubes are advantageous in combining good efficiency and fewer
pressure losses. Shortening inner diameter and increasing U-shaped tubes
number is a good strategy to increase engine efficiency also an increase in
tubes length generates a reduction in engine efficiency. Regarding the
regenerator, the wire mesh regenerator presents a good compromise between
minimum pressure drop and heat losses and provides better engine efficiency.
For its size, better efficiency is obtained for a thicker mesh.