Thermoelectric Stirling Engine (TEG-Stirling Engine) Based on the Analysis of Thermomechanical Dynamics (TMD)

The thermoelectric energy conversion technique by employing the Disk-Magnet Electromagnetic Induction (DM-EMI) is examined in detail, and possible applications to heat engines as one of the energy-harvesting technologies are discussed. The idea is induced by the analysis of thermomechanical dynamics (TMD) for a nonequilibrium irreversible thermodynamic system of heat engines, such as a drinking bird and a low temperature Stirling engine, resulting in thermoelectric energy generation different from conventional heat engines. The current thermoelectric energy conversion with DM-EMI can be applied to wide ranges of machines and temperature differences. The mechanism of DM-EMI energy converter is categorized as the axial flux generator (AFG), which is the reason why the technology is applicable to sensitive thermoelectric conversions. On the other hand, almost all the conventional turbines use the radius flux generator to extract huge electric power, which uses the radial flux generator (RFG). The axial flux generator is helpful for a low mechanoelectric energy conversion and activations of waste heat from macroscopic energy generators such as wind, geothermal, thermal, nuclear power plants and heat-dissipation lines. The technique of DM-EMI will contribute to solving environmental problems to maintain clean and sustainable energy as one of the energy harvesting technologies.

The Application of Thermomechanical Dynamics (TMD) to Thermoelectric Energy Generation by Employing a Low Temperature Stirling Engine

A thermoelectric generation Stirling engine (TEG-Stirling engine) is discussed by employing a low temperature Stirling engine and the dissipative equation of motion derived from the method of thermomechanical dynamics (TMD). The results and mechanism of axial flux electromagnetic induction (AF-EMI) are applied to a low temperature Stirling engine, resulting in a TEG-Stirling engine. The method of TMD produced thermodynamically consistent and time-dependent physical quantities for the first time, such as internal energy ℰ(t), thermodynamic work Wth(t), the total entropy (heat dissipation) Qd(t)and measure or temperature of a nonequilibrium state T˜(t). The TMD analysis produced a lightweight mechanical system of TEG-Stirling engine which derives electric power from waste heat of temperature (40˚CT100˚C) by a thermoelectric conversion method. An optimal low rotational speed about 30θ′(t)/(2π)60(rpm) is found, applicable to devices for sustainable, clean energy technologies. The stability of a thermal state and angular rotations of TEG-Stirling engine are specifically shown by employing properties of nonequilibrium temperature T˜(t), which is also applied to study optimal fuel-injection and combustion timings of heat engines.

The Disk-Magnet Electromagnetic Induction Applied to Thermoelectric Energy Conversions

The thermoelectric energy conversion technique by employing the Disk-Magnet Electromagnetic Induction (DM-EMI) and improved DM-EMIs is shown, and possible applications to heat engines as one of the energy harvesting technologies are also discussed. The idea is induced by integrating irreversible thermodynamical mechanism of a water drinking bird with that of a Stirling engine, resulting in thermoelectric energy generation different from conventional heat engines. The current thermoelectric energy conversion with DM-EMI can be applied to wide ranges of temperature differences. The mechanism of DM-EMI energy converter is examined in terms of axial flux magnetic lines and categorized as the axial flux generator. It is useful for practical applications to macroscopic heat engines such as wind, geothermal, thermal and nuclear power turbines and heat-dissipation lines, for supporting thermoelectric energy conversions. The technique of DM-EMI will contribute to environmental problems to maintain clean and susceptible energy as one of the energy harvesting technologies.

月球基地核电源系统方案研究

月球基地的建立首先需解决能源供给问题,核电源系统具有功率大、寿命长、环境适应性强等优点,是月球基地及其他深空探测任务中理想的能源提供方案。本文分析了目前可用于月球基地的能源情况,有针对性地提出40kWe月球基地核电源系统的设计理念,经初步优化设计,给出了该系统的流程和总体设计参数,并从物理、屏蔽、热工以及结构方面对系统进行了分析和论证。结果表明,该系统方案合理可行,能满足安全和寿期要求。

火星表面核反应堆电源方案研究

火星作为地球的近邻,一直是人类进行深空探测和开发的首选目标。登陆火星、建立火星基地并开发利用火星资源首先需解决电力供给问题,核反应堆电源具有功率大、寿命长、环境适应性强等优点,是火星基地及其他深空探测任务的理想能源。通过分析目前可用于火星基地的能源情况,针对性地提出了40kWe火星表面核反应堆电源的总体方案,并从物理、安全、屏蔽、热工以及结构方面对电源方案进行了分析和论证。结果表明:该电源方案合理可行,能满足安全和寿期要求。

月球表面核反应堆电源方案

月球基地的建立首先需要解决能源供给问题,核反应堆电源具有功率大、寿命长、环境适应性强等优点,是月球基地及其他深空探测任务的理想能源。分析了目前可用于月球基地的能源情况,针对性地提出40 k We月球表面核反应堆电源的设计理念,经初步优化设计,给出该电源的方案和总体设计参数,并从物理、屏蔽、热工、结构方面对电源方案进行分析和论证。结果表明:该电源方案合理可行,能够满足安全和寿期要求。