CAJ | 학술논문

首先对某采用双圆弧叶片的高效离心风机进行实验和数值对比，并在叶轮前盘形状、轮盖和叶片进出口安装角都相同的情况下，分析了采用双圆弧叶片和等减速叶型的模型风机的性能变化。结果表明，使用双圆弧长短叶片风机模型的稳定工况范围更宽、全压更高，等减速模型则在设计流量和小流量下效率更高、流动损失更小。
수선대모채용쌍원호협편적고효리심풍궤진행실험화수치대비，병재협륜전반형상、륜개화협편진출구안장각도상동적정황하，분석료채용쌍원호협편화등감속협형적모형풍궤적성능변화。결과표명，사용쌍원호장단협편풍궤모형적은정공황범위경관、전압경고，등감속모형칙재설계류량화소류량하효솔경고、류동손실경소。
In this paper, firstly, a high efficiency centrifugal fan adopting the double-arc blade model was studied experimentally and numerically. And then, the performance distinction between the centrifugal fan with double-arc blade model and that with uniform deceleration blade model was expounded in detail, while keeping the shroud and hub shape, and the inlet and outlet installation angle constant. The results show that double-arc blade model could cover a wide range of operation condition and reach high total pressure. Uniform deceleration blade model could reach higher efficiency and less flow losses under the design flow and small flow conditions.