EXPERIMENTAL RESEARCH ON NATURAL CONVECTION HEAT T
2004年11月16 00:00:00 来源：中国空调制冷网
Based on finned-tube room radiators , experimentally showed that for two-tube vertical arrangement, heat transfer coefficient of the lower tube is badly degraded by the preheating from lower tubes. Maximum total heat transfer at upper tubes is badly degraded by the preheating from lower tubes. Maximum total heat transfer rate occurs at minimum channel width. Heat transfer at upper turbes is significantly enhanced when four tubes aer horizontally staggered.
