Novel efficient low-pressure-drop plate-fin type heat exchanger fin
A plate-fin heat exchanger with low pressure drop technology, applied in the field of fin structure, can solve the problems of small heat transfer coefficient and large flow channel pressure drop, achieve strong turbulent flow, reduce flow resistance, and improve heat transfer capacity Effect
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[0013] Here is a specific example:
[0014] The fin form is a staggered corrugated fin, which is staggered with each unit wave as a unit, and the inside of each unit wave is divided into 6 segments by 5 cuts.
[0015] The wavelength of each unit wave is d 2 = 15mm.
[0016] The amplitude of the unit wave is A=2.0mm.
[0017] The fin pitch s=6mm.
[0018] Fin thickness d 1 It is 0.5mm; the height h of the fin is 9.5mm.
[0019] Compared with the conventional continuous corrugated fin with the same fin thickness, height, unit wavelength, amplitude, and pitch, this embodiment can increase the heat transfer coefficient by 15-25% under the condition of achieving the same pressure drop, and the fin weight Reduce by more than 15%. Compared with the conventional sawtooth fin with the same fin thickness, height, unit wavelength, amplitude, and pitch, this embodiment can reduce the pressure drop by 10-20% and the weight of the fin under the condition of achieving the same heat transfer coefficie...
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