基于塞贝克效应的燃气灶余热回收装置

Research on Gas Stove Waste Heat Recovery Device Based on Seebeck Effect

针对家庭燃气灶具周圈热能逸散流失严重的问题,设计一款基于塞贝克效应的新型余热回收装置.该装置能使逸散热能通过半导体发电模组正反面的温差势能驱动,持续转化为电能储存,而发电模组正反面温差则由微型冷却系统调节.试验结果表明,半导体发电模组正反面温差越大,装置发电功率越大,当温差达到70℃时,发电功率可达3 W;发电总电压与温差呈线性相关,在系统稳定状态下,空冷得到的发电电压为4.7 V,水冷得到的发电电压为6.8 V,可见水冷产生的温差效果较好,可实现更高效能的热电转化.该装置适用于普通家庭厨房,且具有较好的市场推广前景.

A new waste heat recovery device based on Seebeck effect is designed in this paper to address the problem of serious heat loss from the circumference of household gas cookers.The fugitive heat energy is driven by the potential energy of temperature difference between the front and the back of the semiconductor power generation module.It can continuously convert the heat energy into electrical energy for storage.The temperature difference between the front and the back of the module is regulated by a micro-cooling system.The test results show that the larger the temperature difference between the front and back of the module,the higher the power generated by the device,and the total voltage generated is linearly related to the temperature difference.When the temperature difference reaches 70℃,the power generation can reach 3 W.Secondly,under the steady state of the system,the power generation voltage is 4.7 V for air cooling and 6.8 V for water cooling,which shows that the temperature difference generated by water cooling is effective,which can realize higher efficiency of thermoelectric conversion.The device is suitable for common household kitchen and has good market prospect.