CAJ | 학술논문

根据一个80KW 的高压 PEMFC 系统,以索科洛夫喷射器的结构设计方法为理论基础,设计出喷射器尺寸,搭建试验台架进行试验研究.研究了出口压力,引射压力以及进口压力对PEMFC 用喷射器使用特性的影响.研究表明:①引射流体压力升高会提高喷射器的使用性能.②工作流体对喷射器使用性能的影响比较复杂,不能简单的归纳为增大或减小,而是取决于喷射器出口压力的值,喷射器出口压力所处的工况不同时,喷射系数随工作流体压力变化的规律是不同的.
근거일개80KW 적고압 PEMFC 계통,이색과락부분사기적결구설계방법위이론기출,설계출분사기척촌,탑건시험태가진행시험연구.연구료출구압력,인사압력이급진구압력대PEMFC 용분사기사용특성적영향.연구표명:①인사류체압력승고회제고분사기적사용성능.②공작류체대분사기사용성능적영향비교복잡,불능간단적귀납위증대혹감소,이시취결우분사기출구압력적치,분사기출구압력소처적공황불동시,분사계수수공작류체압력변화적규률시불동적.
According to an 80KW of high -pressure proton exchange membrane fuel cell system , the size of the ejector was designed on basis of the Sokolovejector design theories , and a test bench for experimental re-search was built.Research on the three factors that affect ejector performance was done .The influence of three factors, outlet pressure, ejector pressure and outlet pressure on the PEMFC ejector were studied .The study shows that: ①the elevated ejector pressure will improve the service performance ; ②the working fluid impact on the performance of the ejector is more complex, and cannot be simply summarized as increased or decreased , but depends on the value of the outlet pressure of the ejector .When the ejector outlet pressure of the working condi -tions is different, the rule of the ejection coefficient change with the working fluid pressure change is different .