An experimental study of the flow and heat transfer between enhanced heat transfer plates for PHEs

作者：Li Xiao wei; Meng Ji an^*; Li Zhi xin

来源：Experimental Thermal and Fluid Science, 2010, 34(8): 1194-1204.

DOI：10.1016/j.expthermflusci.2010.04.008

• Plate heat exchanger
• Inclined discrete rib plate
• Flow visualization
• Heat transfer enhancement

The flow and heat transfer between inclined discrete rib plates for plate heat exchangers have been experimentally studied. Dye injection method is used to visualize the flow structures. The visualization results show that front vortex, rear vortex and main vortex are formed between the plates. The rib parameter influence is also studied using visualization method. The pressure drop and heat transfer between the inclined discrete rib plates as well as that between inclined continuous rib plates and smooth plates are also measured. The measured results show that the inclined discrete rib plate can enhanced heat transfer 20-25% at the same pumping power compared with the commonly used inclined continuous rib plates.

• 出版日期2010-11
• 单位清华大学