CAJ | 학술논문

基于自行搭建的温差发电系统性能测试平台，以温度、开路电压、内阻、最大输出功率作为性能参数，研究接触压力对温差发电系统性能的影响规律。研究结果表明：在温差发电系统冷、热端温度均相同的情况下，接触压力增大，则系统开路电压和最大输出功率增大，但增大的幅度随压力的增大而逐渐减小；在温度一定的情况下，接触压力的大小对温差发电片内部的接触电阻影响不大；接触压力对温差发电系统冷、热端温度的瞬态响应特性影响不大，但对系统开路电压的瞬态响应特性影响很大，接触压力增大，则开路电压的瞬态响应速率加快。研究结果证明接触压力对温差发电系统的性能具有显著的影响。
기우자행탑건적온차발전계통성능측시평태，이온도、개로전압、내조、최대수출공솔작위성능삼수，연구접촉압력대온차발전계통성능적영향규률。연구결과표명：재온차발전계통랭、열단온도균상동적정황하，접촉압력증대，칙계통개로전압화최대수출공솔증대，단증대적폭도수압력적증대이축점감소；재온도일정적정황하，접촉압력적대소대온차발전편내부적접촉전조영향불대；접촉압력대온차발전계통랭、열단온도적순태향응특성영향불대，단대계통개로전압적순태향응특성영향흔대，접촉압력증대，칙개로전압적순태향응속솔가쾌。연구결과증명접촉압력대온차발전계통적성능구유현저적영향。
In this study,an experimental thermoelectric generator test platform was constructed. The experiments were carried out to examine the influences of contact pressure on thermoelectric generator. Temperature,open circuit voltage,resistance and maximum power output were characterized as a function of generator performance. Through-out the experiments,it can be seen that when the hot side and cold side temperatures of thermoelectric generator are homogeneons,the open circuit voltage and maximum power output increase with the increase of pressure,but their increase rates get smaller. Furthermore,at a certain temperature,the internal contact resistance of thermoelectric generator seems insensitive to contact pressure. Finally,the transient response characteristics of hot side and cold side temperatures seem insensitive to contact pressure,while the transient response rate of open circuit voltage accelerates with increasing pressure. It is proved that contact pressure has great effect on the performance of thermoelectric gen-erator.