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What is the heat capacity rate? What does a heat capacity of infinity for a fluid in a heat exchanger means?

User Meggie
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Answer:

Heat capacity:

The product of specific heat and mass flow rate is known as heat capacity.


Mass\ flow\ rate =\dot{m}

Specific heat = Cp

So Heat capacity C


C=\dot{m}C_p

Heat transfer Q

Q= C ΔT

C is the heat capacity

ΔT is the temperature difference.

When fluid changes phase in heat exchanger then heat capacity of fluid become infinity .It means that temperature difference tends to zero.


C\rightarrow \infty\ then\ \Delta\ T\rightarrow 0

User Osum
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