The grooves on the heated surface lowered the flow resistance and enhanced the filmheattransfer coefficient 2-3 times that of flat plates.
相同雷诺数的槽板平均表面换热系数是平板的2~3倍,同时减小了流动阻力。
2
The results showed that compared to conventional smooth segment baffle heat exchanger, the plate heat exchanger(PHE) can effectively strengthen the filmheattransfer coefficient of the shell side.
研究结果表明,与传统的光滑管弓形隔板换热器相比,板式换热器能非常有效地强化空气侧的膜传热系数。
3
The mass transfer equation was introduced into heattransfer model of falling film evaporation. The radial velocity, mass diffusion coefficient and variation of film thickness were taken into account.