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wet and dry efficiency of recuperative air to air heat exchanger

wet and dry efficiency of recuperative air to air heat exchanger

wet and dry efficiency of recuperative air to air heat exchanger

(OP)
I would be very grateful if somebody can explain me how to calculate dry and wet efficiency of recuperative air to air heat exchanger.
I only have this equation for heat exchanger efficiency stated in DIN EN 308 standard.

n=(Tsupplyair-Tfreshair)/(Textractair – Tfreshair).

Please tell me if you need some additional information for this problem.

Thank you in advance.

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