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Towards the Isothermal Compression – A Novel Finned Piston-Cylinder with Increased Efficiency
Version 1
: Received: 27 February 2024 / Approved: 27 February 2024 / Online: 28 February 2024 (08:38:40 CET)
A peer-reviewed article of this Preprint also exists.
Rufer, A. Towards the Isothermal Gas Compression—A Novel Finned Piston-Cylinder with Increased Efficiency. Gases 2024, 4, 59-74. Rufer, A. Towards the Isothermal Gas Compression—A Novel Finned Piston-Cylinder with Increased Efficiency. Gases 2024, 4, 59-74.
Abstract
A novel concept of a finned piston system is presented and analyzed where the compression heat is continuously extracted from the compression chamber. The resulting compression characteristic moves in direction of an isothermal process, reducing so the temperature of the compressed fluid in the compression chamber and reducing the necessary mechanical work for the process. The finned piston concept consists in an integrated heat exchanger inside of the chamber and being constituated of imbricated flat fins placed on the stator part and on the mobile piston. The internal heat exchange surface is strongly increased in comparison with a classical piston/cylinder. The energetic performance of the new system is evaluated with the help of simulation. Pressures, forces and temperature of the compressed gas are simulated as well as the mechanical work needed. The different curves are compared with adiabatic and isothermal characteristics.
Keywords
gas compression; isothermal; energy efficiency; heat exchange; finned piston
Subject
Engineering, Mechanical Engineering
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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