Abstract
The link between heat transfer intensity and hydraulic resistance of plate heat exchangers channels is determined with the use of modified Reynolds analogy of heat and momentum transfer. The formula to estimate the share in total hydraulic resistance of pressure loss due to friction is proposed. The resulting model enables to calculate film heat transfer coefficients in plate heat exchangers channels on a data of hydraulic resistance of the main corrugated heat transfer field. The calculations are compared with the experimental results on heat transfer in channels with cross corrugated walls available in the literature. The good agreement confirms the assumptions made on deriving the equation of the analogy between heat and momentum transfer in proposed form in plate heat exchanger channels.
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