3. How will u find efficiency of Heat exchanger

Question

Accepted Answer

Efficiency of heat exchanger can be found by calculating the heat transfer rate and comparing it with the maximum possible heat transfer rate.

Calculate the heat transfer rate using the formula Q = U*A*ΔTlm, where U is the overall heat transfer coefficient, A is the heat transfer area, and ΔTlm is the log mean temperature difference.
Calculate the maximum possible heat transfer rate using the formula Qmax = m*Cp*ΔT, where m is the mass flow rate, Cp is the specific heat capacity, and ΔT is the temperature difference between the hot and cold fluids.
Divide the actual heat transfer rate by the maximum possible heat transfer rate to get the efficiency of the heat exchanger.
Efficiency can also be calculated using the NTU method or the ε-NTU method.
Regular maintenance and cleaning of the heat exchanger can improve its efficiency.

Accepted Answer

Calculate the heat tranfer methoh

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