Electric Heat Exchanger Calculation

Once lmdt and power have been calculated the heat exchanger calculation can be done as per the following formula.

Electric heat exchanger calculation.

For heat transfer from the outside calculate the area exposed to the atmosphere except for the top of the control panel. Calculate the required heat transfer area based on values needed. In an isolated system given heat is always equal to taken heat or heat change in the system is equal to zero. These templates use s i.

Approximations may be necessary. For example if you know the power generated inside the unit assume 10 of the energy is dissipated as heat. To solve the basic equation a q u t you must first determine the value of. Heat transfer coefficient in kw c m 2 that is specific to each type of equipment and given by the manufacturer.

If two objects having different temperatures are in contact heat transfer starts between them. Calculations of heat transfer conservation of energy theorem is also applied to heat transfer. The amount of heat given is equal to the amount of heat taken. T 2 239 140 99f.

As you calculate the required surface area of the heat transfer device you see where each t value is used. 800 832 9375 or 516 832 9300 fax. Determine the heat generated inside the enclosure. Exergy llc 320 endo boulevard garden city ny 11530 phone.

For example suppose the final solution temperature is 140f and the temperature of the steam at 10 psi is 239f. Download the excel spreadsheet templates in this article to make preliminary heat exchanger design calculations.