Abstract
A theoretical quantum Brayton engine research has been carried out using a potential box system to increase its thermal efficiency. The method applied in this research is a classical thermodynamics system model in the form of a piston tube containing a monatomic ideal gas analogous to a quantum model in the form of a potential box containing one particle. The efficiency formulation of the quantum Brayton engine obtained from this study is following the classical version. However, the efficiency value obtained on a quantum Brayton engine is higher when compared to its classic. It happens because the value of the Laplace constant owned by the Brayton quantum version is 3, while the classic version is 5/3.
Highlights
Energy is one of the basic needs that cannot be separated from human life
In order that energy can be utilized by the public, they invented a heat engine that can convert that energy into mechanical work
Not all heat flowed into the system is converted to mechanical work, so the rest of the heat that cannot be changed is discharged into a low-temperature bath [1,2]
Summary
Energy is one of the basic needs that cannot be separated from human life. Geothermal, nuclear fission, and fossil fuels are a few examples of the many sources of thermal energy. The main problem with heat engines today is that they have low thermal efficiency. One way to increase the efficiency of a heat engine is to replace a classical system with a quantum system. When the four processes are combined, they will form cycles such as Carnot, Otto, Brayton, Diesel, etc. This classical system is substituted by a quantum system. Research on the efficiency of the quantum Brayton engine has been carried out using a 1-dimensional potential well system [6,8,15]. This research offers a quantum Brayton engine with a quantum system in the form of the symmetrical 3dimensional potential well containing one particle instead of a piston tube
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