Water To Air Heat Exchanger Calculations

Garage and out building heat.

Water to air heat exchanger calculations.

Convective heat transfer coefficient for air. 1 sweat inlet outlet connections are standard on all models. Fluid properties are used at the average temperatures. Calculation assumes true counter flow.

Fluid temperature ranges from 40 f to 200 f. I agree with leaddog don t go small i have a 75 000 btu furnace with a 20 x20 exchanger which i think it is capable of 100 000 btu s if i m not mistaken. Many other applications utilizing liquid to air or air to liquid transfer. Heat recovery app free apps for offline use on mobile devices.

The convective heat transfer coefficient for air flow can be approximated to. 1 kcal m 2 h c 1 16 w m 2 c 2 can be modified to. Related mobile apps from the engineering toolbox. These templates use s i.

The velocity of the methanol flow through the tubes is 0 8 m s w. They will also calculate the number of tubes needed for a shell and tube heat exchanger and to calculate the pipe length needed for a double pipe heat exchanger. Only sensible heat transfer occurs. Brazetek water to air heat exchangers are also suitable for liquid cooling applications and a number of other liquid to air and air to liquid heat transfer applications where liquid temperature does not exceed 350f and operating pressure is at or below 360 psi.

H c 10 45 v 10 v 1 2 2 where. Heat exchanger efficiency calculator. Air cooled heat exchanger sizing does preliminary estimation of finned area plot size total fan power and air outlet temperature checalc chemical engineering calculations to assist process plant operation and maintenance engineers. Geothermal heating and cooling.

Go bigger not smaller. H 2 enthalpy in outside make up air after the heat exchanger kj kg btu lb h 3 enthalpy in outlet air before the heat exchanger kj kg btu lb enthalpy of moist air. Air is assumed to be dry at atmospheric pressure and at zero elevation. The model numbers shown in the calculator are only a partial listing of our standard products.

Heat exchanger calculator the heat exchanger calculator is a program specially designed to predict the performance of the heat exchanger model number you choose based on the parameters you input. Calculate the required heat transfer area based on values needed. The water flow is cooled from 100 to 45 c. Liquid cooling by air to water or liquid transfer applications.

Liquids are considered incompressible. Have no problems with a c due to air flow and very nice heat. H c heat transfer coefficient kcal m 2 h c v relative speed between object surface and air m s since. Sizing of the unit required for the application if there is no space restriction can be determined by the use of either the theoretical heat.

Download the excel spreadsheet templates in this article to make preliminary heat exchanger design calculations.