摘要
本研究采用端部热补偿的方法,消除了环形封闭夹层顶部和底部轴向导热的影响。通过在稳态下四种夹层间距、分别在五个放置角度下自然对流换热的测量,综合出适应于较大Ra数范围内、涉及了高深比和放置角度的换热关联式,它对同类工程应用具有一定的指导意义。
This paper discribes an experimental research of natural convection in annuius, it makes the heat compensation at the ends to reduce the heat losses in the axial direction. Under the steady state, experiment results for four annular gaps at five tilt anglesrespectively are obtained. The criterion equations include the effect of Ra* number, the aspect ratio and tilt angles. It can provide the theoretic foundation for the similar engineering conditions.
出处
《北京建筑工程学院学报》
1996年第4期9-16,共8页
Journal of Beijing Institute of Civil Engineering and Architecture
