Quantum-Mechanical Brayton Engine based on a Boson Particle Inside Cubic Potential

Abstract

Abstract Currently, the heat engine needs to be miniaturized to increase its thermal efficiency. In this theoretical study, the symmetrical potential box containing one particle with one of its walls moving freely is analogous to a cylinder with a piston. The potential box contains a massless Boson particle, while the piston-cylinder contains a monatomic ideal gas. The form of Quantum-Mechanical Brayton Engine (QMBE) thermal efficiency formulation has similarities to the classical version of the Brayton engine. However, the efficiency value of QMBE with a massless Boson particle is higher than the classic version because the heat capacity ratio of the Boson particle working fluid is 2, while the monatomic ideal gas is 5/3.