What is displacer in Stirling engine?

The displacer is a special-purpose piston, used in Beta and Gamma type Stirling engines, to move the working gas back and forth between the hot and cold heat exchangers.

How does a gamma Stirling engine work?

Gamma type engines have a displacer and power piston, similar to Beta machines, however in different cylinders. This allows a convenient complete separation between the heat exchangers associated with the displacer cylinder and the compression and expansion work space associated with the piston.

Why is a Stirling engine so special?

Stirling engine has high possibility to achieve low level of noise and vibration because cyclic torque fluctuation is smooth thanks to non-explosive combustion. The development objectives are improvement of the durability and cost reduction of components exposed to high temperature and high pressure such as over 10MPa.

How is a gamma type stirling engine made?

In this research work, a gamma type Stirling engine is developed, which is found as efficient among the three types of Stirling engines available. The detailed drawing of the entire parts was made in CATIA V5 and the manufacturing was done using CNC milling machines, lathe and universal drilling machines.

Which type of Stirling engine has more power to density ratio?

The efficiency for gamma type Stirling engine is more when compared with the other two types. Beta type Stirling engine possesses higher power to density ratio. Sayed et al. [5] carried out a study regarding the effect of working fluids in a Stirling engine.

Can Stirling engine become Green engine?

This data and engine can be used for future reference model, since Stirling engine has the potential to become Green engine. 1. Introduction Stirling engine is an external combustion engine invented by Robert Stirling in year 1816.