CAJ | 학술논문

为了解决温差发电技术中发电片热端与尾气间热损失大造成输出功率和热电转化效率不高的问题，提出在尾气与温差发电片热端加装相变传热结构，并计算了加装相变结构后发电器的输出功率和效率，同时与相同传热面积时无相变传热情况进行了对比，并模拟了蒸发段管数和冷凝段高度对发电器输出功率及效率的影响。结果表明，相变结构可提高发电器的输出功率及转化效率，且输出功率随冷凝段长度增加出现峰值，蒸发段管数越多，峰值对应的冷凝段长度越长，而发电效率则随冷凝段长度增加而减少；蒸发段管数增加，输出功率和发电效率均增大。
위료해결온차발전기술중발전편열단여미기간열손실대조성수출공솔화열전전화효솔불고적문제，제출재미기여온차발전편열단가장상변전열결구，병계산료가장상변결구후발전기적수출공솔화효솔，동시여상동전열면적시무상변전열정황진행료대비，병모의료증발단관수화냉응단고도대발전기수출공솔급효솔적영향。결과표명，상변결구가제고발전기적수출공솔급전화효솔，차수출공솔수냉응단장도증가출현봉치，증발단관수월다，봉치대응적냉응단장도월장，이발전효솔칙수냉응단장도증가이감소；증발단관수증가，수출공솔화발전효솔균증대。
In order to solve the low power output and efficiency between the hot side of the thermoelectric generation and gas,this study developed to install a phase change structure between the hot side of the thermoelectric generation and gas,and calculated the power and efficiency of the generation with phase change structure,and investigated the performance curves of this structure design.The results show that the phase change structure can achieve higher power and efficiency. With an increase in the condenser height,the power output reaches a maximum while efficiency is decreasing.Both the power output and the efficiency increase when the section of evaporation increases.