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What reference should I use to calculate the heat transfer coefficients of plate exchangers that has step-by-step solutions?
The total rate of heat transfer between the hot and cold fluids passing through a plate heat exchanger may be expressed as: Q = UA∆Tm where U is the Overall heat transfer coefficient, A is the total plate area, and ∆Tm is the Log mean temperature difference. Generally the heat transfer correlation for a fluid flow past a solid surface is expressed in a dimensionless form
Nu = Nu (Re, Pr)
where Nu is the non dimensionless Nusselt number expressed as
Nu=hd/k
Overall heat transfer coefficients in common heat exchanger designs - tubular, plate or spiral.
Plate heat exchanger, Overall heat transfer coefficients for liquid to liquid is generally-1000-4000 W(m2 K)
For detail please find attached herewith articles.
And below link
https://www.researchgate.net/publication/342411762_Plate_Heat_Exchanger_Overall_Heat_Transfer_Coefficient
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Heat transfer coefficient quantifies the efficacy of heat transmission between a fluid and a solid surface. The following equation may be used to determine the heat transfer coefficient:The heat
h = q / (A * ∆T)
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