Computational analysis of Stirnol Engine
DOI:
https://doi.org/10.31349/RevMexFis.72.040601Keywords:
LTD (Low Temperature Difference) engine , Stirling engine, Nitinol, Shape Memory Effect (SME), Stirnol engineAbstract
Global energy requirement is accelerating on daily basis resulting in energy void which leads to human quest to find simple and cost-effective solutions. A promising resolution is the application of renewable energy with thermo-mechanical conversion systems such as Stirling engines. Considerable effort is in hand at industry and academia domains to stimulate the development of Stirling technology. An encouraging answer to this problem is the revival of Stirling engines with the modification of Shape Memory Alloy Nitinol in it. Efficiency of Stirling engine is lower than other Internal Combustion Engines of this class. Stirling engine is being used for power generation but no significant work has been reported on its efficiency improvement; so, the options were required to be explored in order to increase its efficiency. In this regard two dimensions of engineering i.e., Stirling Engine and Shape Memory Alloy were studied and combined. The study employed a two-prong approach, integrating computational modeling and experimental analysis. The results of this integration reveal that addition of Nitinol spring enhances the overall efficiency of engine, demonstrating positive impact of shape memory alloy towards performance output of Stirling engine. The name of newly modified engine is coined as STIRNOL ENGINE (combination of Stirling and Nitinol). This research focuses on modelling of both engines in ANSYS Software and subsequent conduct of computational analysis. The significance of the research is that the low energy wastage (exhausts of home appliances like air conditioners, automobiles, factory waste etc.) can be utilized to run Stirnol engines which can produce useful work.
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