Affiliation:
1. Laboratory of Applied Thermodynamics, Mechanical Engineering School, National Technical University of Athens, Zografou Campus, Heroon Polytecheiou 9, 15780 Athens, Greece
Abstract
Three distinct thermodynamic analysis models are developed and applied to a renowned cryogenic engine (PPG-102), namely the isothermal model, the ideal Schmidt model, and the ideal adiabatic model. Through a comparative analysis, the theoretical outcomes derived from these models are juxtaposed with the corresponding theoretical results from the existing literature. The comprehensive evaluation of these findings demonstrates significant convergence, with minor deviations primarily attributed to the inherent assumptions underlying each model. The design of the PPG-102 engine is meticulously executed within the Solidworks environment, allowing for the subsequent simulation under operating conditions identical to those of the computational models. Remarkably, the simulation results closely approximate the outcomes of the adiabatic analysis, thus corroborating the validity and effectiveness of this particular model. In this work, the presented models, initially developed for thermal Stirling engines, are augmented and applied to a cryogenics Stirling engine, offering a unique understanding of the workings of this apparatus.
Subject
Energy (miscellaneous),Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment,Electrical and Electronic Engineering,Control and Optimization,Engineering (miscellaneous),Building and Construction
Reference19 articles.
1. Walker, G. (1990). Cryocoolers, Springer.
2. Chen, N.C., and Griffin, F.P. (1983). Review of Stirling-Engine Mathematical Models.
3. A review of solar-powered Stirling engines and low temperature differential Stirling engines;Kongtragool;Renew. Sustain. Energy Rev.,2003
4. Collins, S.C., and Cannaday, R.L. (1958). Expansion Machines for Low Temperature Processes, Oxford University Press.
5. Martini, W. (1978). Stirling Engine Design Manual, Technical Report.