Robert Stirling - The Stirling Engine

The Reverend Dr. Robert Stirling (October 25, 1790 - June 6, 1878) was a Scottish clergyman, and inventor of the Stirling engine. Stirling was born at Cloag Farm near Methven, Perthshire, the third of eight children. He inherited his father's interest in engineering, but studied divinity at the University of Edinburgh and the University of Glasgow becoming a minister of the Church of Scotland as second charge of the Laigh Kirk of Kilmarnock in 1816. He was Minister of Galston Parish Church from 1824 until 1878. A Stirling engine is a heat engine that operates by cyclic compression and expansion of air or other gas (the working fluid) at different temperatures, such that there is a net conversion of heat energy to mechanical work. More specifically, the Stirling engine is a closed-cycle regenerative heat engine with a permanently gaseous working fluid. Closed-cycle, in this context, means a thermodynamic system in which the working fluid is permanently contained within the system, and regenerative describes the use of a specific type of internal heat exchanger and thermal store, known as the regenerator. The inclusion of a regenerator differentiates the Stirling engine from other closed cycle hot air engines. by Dap Dapple https://www.youtube.com/JabbaDoyle