Heat exchanger, condensation

[Kqwert]

Homework Statement

If you have a heat exchanger with a cooling fluid and a fluid that condenses, and the fluid condenses over the entire heat exchanger i.e. its temperature is constant. How can one make a heat balance in such a case, when dT is 0 for the condensing fluid but not the other? i.e. (m*Cp*Dt)_{fluid 1} = (m*Cp*Dt)_{fluid 2}

Homework Equations

The Attempt at a Solution

 

[Chestermiller]

Homework Statement

If you have a heat exchanger with a cooling fluid and a fluid that condenses, and the fluid condenses over the entire heat exchanger i.e. its temperature is constant. How can one make a heat balance in such a case, when dT is 0 for the condensing fluid but not the other? i.e. (m*Cp*Dt)_{fluid 1} = (m*Cp*Dt)_{fluid 2}

Homework Equations

The Attempt at a Solution

You are aware that enthalpy changes at constant temperature for a phase change of a single component substance, correct? You've heard of the heat of vaporization/condensation, correct?

 

[Kqwert]

You are aware that enthalpy changes at constant temperature for a phase change of a single component substance, correct? You've heard of the heat of vaporization/condensation, correct?

I wasn't aware that the enthalpy changes at constant temperature for a phase change.

 

[Chestermiller]

I wasn't aware that the enthalpy changes at constant temperature for a phase change.

Are you taking thermodynamics now, or have you had it yet?

 

[Kqwert]

Are you taking thermodynamics now, or have you had it yet?

I haven´t had it yet. We had a small brief on it in the course I am taking, but maybe I didn't pay enough attention.

 

[Chestermiller]

I haven´t had it yet. We had a small brief on it in the course I am taking, but maybe I didn't pay enough attention.

Well, I'm sure you know that water boils at a constant temperature of 100C while you are adding heat.