Optimization of slenderness ratio and geometric dimensions of the annular thermoelectric generator
Owing to the deterioration of environmental emissions and the diminishing supply of fossil fuels, renewable and environmentally safe energy transfer technology has been a major concern as human society has progressed. More than half of the energy converted in conventional energy conversion processes, particularly in automobiles, is wasted heat that is emitted into the atmosphere. Energy conversion efficiency would improve if we converted wasted energy into electricity. In the meantime, we can reduce the consumption of fossil fuels. Thermoelectric devices are being used for converting heat energy to electricity due to their low maintenance costs, zero emissions and safety. They are widely used in the recovery of vehicle waste heat and solar energy, among other things. They are not widely used due to their low conversion performance. My motivation to do this research comes from my deep interest in automobiles and sustainable energy system. The research should be able to demonstrate and prove that changes of slenderness ratio, thermoelectric materials, and geometries such as length, width, and height of thermoelectric legs do influence the thermoelectric performance and mechanical reliability of thermoelectric generator. The research aims to improve the thermoelectric performance of thermoelectric generator by obtaining the optimal materials and geometries of thermoelectric legs. The challenge is several similar researches have been done but not much research articles can be found that’s focusing on different materials, SOLIDWORKS software for modelling and different prism legs (shape) so the research is intended to focus on this gaps to improve it.The research would be carried out in three phases. The first is the modelling of the 3D model with different parameters in SOLIDWORKS software. The second phase is importing the thermoelectric leg model to ANSYS software workbench. Once the boundary conditions and properties of thermoelectric materials are set. Finite Element Analysis, mesh independence study and static thermoelectric analysis & simulation will be carried out. Mesh independence study will be repeated to make sure that the optimal mesh element size and method is obtained. Static thermoelectric analysis & simulation will be repeated too to obtain the optimal geometries and materials. Final phase will be detailed discussion and comparison with supervisor in terms of optimal geometries and materials to obtain the optimal structural parameters and materials. The research is expected to obtain the optimal structural parameters and thermoelectric materials. Next, a detailed discussion with supervisor in terms of research results and comparison would be held to obtain the optimal structural parameters and thermoelectric materials.