Piston Surface Pressure of Piston-Cylinder System with Finite Piston Speed

Siti Nurul Akmal Yusof; Yutaka Asako; Tan Lit Ken; Nor Azwadi Che Sidik

Authors

Siti Nurul Akmal Yusof Department of Mechanical Precision Engineering, Malaysia-Japan International Institute of Technology, University Technology Malaysia, Jalan Sultan Yahya Petra, 54100 Kuala Lumpur, Malaysia
Yutaka Asako Department of Mechanical Precision Engineering, Malaysia-Japan International Institute of Technology, University Technology Malaysia, Jalan Sultan Yahya Petra, 54100 Kuala Lumpur, Malaysia
Tan Lit Ken Department of Mechanical Precision Engineering, Malaysia-Japan International Institute of Technology, University Technology Malaysia, Jalan Sultan Yahya Petra, 54100 Kuala Lumpur, Malaysia
Nor Azwadi Che Sidik Department of Mechanical Precision Engineering, Malaysia-Japan International Institute of Technology, University Technology Malaysia, Jalan Sultan Yahya Petra, 54100 Kuala Lumpur, Malaysia

Keywords:

irreversible compression process, pressure , ideal gas , kinetic molecular theory

Abstract

Understanding the thermodynamics’ fundamental are important for the advance of energy and environmental technologies. The study aims to derive an expression of the average pressure on the piston surface, pps in an adiabatic piston-cylinder system during an irreversible process with finite piston speed using the kinetic molecular theory. Expressions for the average pressure on the piston surface, pps are derived from the change of momentum and change of energy. The Maxwell-Boltzmann distribution is used to estimate the gas molecule velocities. The piston surface pressure obtained from the change of momentum is 37.18% lower than that obtained by the previous study. The piston surface pressure obtained from the change of energy is 26.94% lower than that obtained by the previous study.