Dynamic model of stirling engine crank mechanism with connected electric generator
Date issued
2009
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
University of West Bohemia
Abstract
This paper treats of a numerical dynamic model of Stirling engine crank mechanism. The model is included in the complex model of combined heat and power unit. The unit is composed of the Stirling engine and of attached threephase synchronous generator. This generator should start the Stirling engine in motor mode as well. It is necessary to combine the crank shaft dynamic model and the complete thermal model of Stirling engine for simulations and analyses of engine run. Our aim is to create a dynamics model which takes into account the parameters of crankshaft, piston rods, pistons, and attached generator. For unit working, the electro-mechanical behaviour of generator is also important. That is why we experimentally verified the parameters of generator. The measured characteristics are used in a complex model of heat and power unit. Moreover, it is also possible to determine the Stirling engine torque by the help of these electro-mechanical characteristics. These values can be used e. g. for determination of optimal engine working point or for unit control.
Description
Subject(s)
energetické strojírenství, klikový mechanismus, synchronní motory, matematický model
Citation
Applied and Computational Mechanics. 2009, vol. 3, no. 1, p. 185-194.