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Parametric Analysis of a Stirling Engine Using Engineering Equation Solver

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2022 Spring ASEE Middle Atlantic Section Conference


Newark, New Jersey

Publication Date

April 22, 2022

Start Date

April 22, 2022

End Date

April 23, 2022

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Paper Authors


Kaitlyn Kreider State University of New York at New Paltz

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Kaitlyn Kreider is currently a senior undergraduate mechanical engineering student at SUNY New Paltz. As an undergraduate student, Kaitlyn is a teaching assistant for the Dynamics course and an EES Tutor for the Thermal System Design course. She is designing and manufacturing a Stirling Engine iPhone Charger for her senior design project. During her undergraduate studies, she is an active member of the American Society of Mechanical Engineers (ASME) at SUNY New Paltz.

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Kevin T. Shanley State University of New York at New Paltz

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Dr. Shanley was the first faculty hired into the newly formed Mechanical Engineering program at SUNY New Paltz. He came to New Paltz after 4.5 years working as a technical specialist for the Rolls-Royce Corporation. He earned his Ph.D. in Mechanical Engineering at Clarkson University, M.S. in Applied Physics at UMass Boston, B.S. in Mechanical Engineering at Clarkson University, and B.A. in Engineering at Saint Michael's College. He was an EPA Graduate Research Fellow and a member of the Rolls-Royce Aerothermal Professional Leadership Scheme. Currently, he provides leadership and direction to the Mechanical Engineering program at New Paltz and is responsible for the curriculum.

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The Stirling engine is a clean energy source that converts heat into work efficiently with a theoretical thermal efficiency equal to that of the Carnot engine. As an external combustion engine, there is no limitation on the type of fuel source chosen to power the Stirling engine—so a wide range of unusual fuel sources may be used. This paper describes a program created in Engineering Equation Solver (EES) that is designed to create a power output matrix and a parametric analysis for any Stirling engine—whether alpha, beta, or gamma configuration—and is developed as a tool for use in a Senior Design project at SUNY New Paltz. Upon successful completion of this code, EES will compute a resulting power output matrix and P-v and T-s diagrams. The resulting power output matrix is two-dimensional: one dimension is an array of Revolutions Per Minute (RPM) values from 100 rpm to 1,000 rpm; the second dimension is an array of compression ratios. This power output matrix is created by utilizing the Parametric tables in EES. The Nasa Ideal Gas Library within the EES program contains 1,262 ideal gases to be chosen as the working fluid. The thermodynamic properties of these gases were recorded in 2002 at the Glenn Research Center. The thermophysical property functions in EES calculate the thermophysical property values at each state using the ideal gas assumption. The purpose of this program is that the user will input the length and bore of any chosen cylinder, as well as the hot and cold temperature values, to determine a power output matrix that varies with compression ratio and RPM, and then perform a parametric analysis for the Stirling engine. To prove the effectiveness of EES in designing and analyzing thermal systems, there is survey data completed by undergraduate mechanical engineering students who are using EES in their Thermal System Design course at SUNY New Paltz.

Kreider, K., & Shanley, K. T. (2022, April), Parametric Analysis of a Stirling Engine Using Engineering Equation Solver Paper presented at 2022 Spring ASEE Middle Atlantic Section Conference, Newark, New Jersey.

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