热磁对流
磁制冷
材料科学
热机
机械工程
热能
传热
汽车工程
核工程
热力学
工程类
物理
磁场
磁化
量子力学
作者
Zeeshan Zeeshan,Muhammad Uzair Mehmood,Sungbo Cho
出处
期刊:Energies
[Multidisciplinary Digital Publishing Institute]
日期:2021-09-13
卷期号:14 (18): 5768-5768
被引量:3
摘要
Thermomagnetic energy harvesters are one form of technology that can be effectively used to extract energy from low grade heat sources, without causing damage to the environment. In this study, we investigated the output performance of our previously designed thermomagnetic heat engine, which was developed to extract thermal energy by exploiting the magnetocaloric effect of gadolinium. The proposed heat engine uses water as the heat transfer fluid, with heat sources at a temperature in the range 20–65 °C. Although this method turned out to be a promising solution to extract thermal energy, the amount of energy extracted through this geometry of thermomagnetic engine was limited and depends on the interaction between magnetic flux and magnetocaloric material. Therefore, in this paper we carry out an in-depth analysis of the designed thermomagnetic heat engine with an integrated approach of numerical simulation and experimental validation. The computational model improved recognition of the critical component to developing an optimized model of the thermomagnetic heat engine. Based on the simulation result, a new working model was developed that showed a significant improvement in the rpm and axial torque generation. The results indicate that the peak RPM and torque of the engine are improved by 34.3% and 32.2%, respectively.
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