IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) e-ISSN: 2278-1684,p-ISSN: 2320-334X, Volume 11, Issue 6 Ver. IV (Nov- Dec. 2014), PP 69-71 www.iosrjournals.org www.iosrjournals.org 69 | Page Development and fabrication of Alpha Stirling Engine Vishal Gehlot 1 , Abhinay Nigam 2 , Kunal Marmat 3 1 (Mechanical Engineering Department, MITS, Ujjain M.P. India) 2 (Mechanical Engineering Department, MITS, Ujjain M.P. India) 3 (Mechanical Engineering Department, SGSITS, Ujjain M.P. India) Abstract: This paper describes a new approach to Develop and fabrication of an Alpha Stirling engines with the goal of building a working prototype. The Stirling cycle is recast as a dynamic system where control design tools and techniques can be applied to determine optimal manufacturable parameters for the engine. This Alfa type Stirling engine constructed by two unused Kirloskar diesel engine as one is for power cylinder and another is for cooled cylinder. Both are coupled by two ways – one is flexible coupling and another is injector holder to heat exchanger joining by pressure pipe. This type of engine has a high power to volume ratio but has technical problems due to the usually high temperature of the hot piston and the durability of its seals. The paper proposes the way to build and utilize Stirling engine for the green energy applications. The research on Stirling engine is being increased, many inventions reveals the suitability of engine for low power applications that includes an alternative for engines in industries. Finally, the Stirling engine model is experimentally verified. Keywords: Alpha Stirling Engine, Regenerative heat exchanger, Design and fabrication, Parts and Components, Further scope, Implementations, I. Introduction Stirling engine provide clean, reliable, mechanical power when provided only with a temperature gradient. Unlike combustion engine, Stirling engines do not require a distillate fuel like gasoline and can therefore streak on heat from any source such as geothermal, solar, biomass or nuclear vitality. The Stirling cycle operates by shuttling a compressed gas between two chambers separated by a lightweight piston. The engine cycle is thrust by the transport of heat across a static temperature difference either side of the chamber. [1] Stirling Engine is a heat engine operating by cyclic compression and expansion of air or other gas, the working fluid, at different temperature levels such that there is a net conversion of heat energy to mechanical work. II. Alpha Stirling engine An alpha Stirling contains two power pistons in separate cylinders, one hot and one cold. The hot cylinder is situated inside the high temperature heat exchanger and the cold cylinder is situated inside the low temperature heat exchanger. This type of engine has a high power-to-volume ratio but has technical problems due to the usually high temperature of the hot piston and the durability of its seals. In practice, this piston usually carries a large insulating head to move the seals away from the hot zone at the expense of some additional dead space. Figure 1: Alpha Stirling engine III. Problem statement We have tried to develop an alpha type Stirling engine by coupling two diesel engines at a phase difference of 90degree. Thus we have tried to develop an engine that is:  Readily available in marked and thus easily replicable.  The spares of engine would be easily available. The manufacturing difficulties that arise in developing a new engine are avoided.  The engine can be easily reproduced in larger numbers if the experimental trials are successful.