Water To Air Heat Exchanger Calculations

Calculation assumes true counter flow.

Water to air heat exchanger calculations.

Have no problems with a c due to air flow and very nice heat. Download the excel spreadsheet templates in this article to make preliminary heat exchanger design calculations. The water flow is cooled from 100 to 45 c. Calculate the required heat transfer area based on values needed.

Related mobile apps from the engineering toolbox. Many other applications utilizing liquid to air or air to liquid transfer. Garage and out building heat. Convective heat transfer coefficient for air.

The convective heat transfer coefficient for air flow can be approximated to. Fluid properties are used at the average temperatures. Liquids are considered incompressible. 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.

The velocity of the methanol flow through the tubes is 0 8 m s w. Heat recovery app free apps for offline use on mobile devices. Heat exchanger efficiency calculator. H c heat transfer coefficient kcal m 2 h c v relative speed between object surface and air m s since.

Liquid cooling by air to water or liquid transfer applications. 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. 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.

1 sweat inlet outlet connections are standard on all models. These templates use s i. Only sensible heat transfer occurs. 1 kcal m 2 h c 1 16 w m 2 c 2 can be modified to.

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. H c 10 45 v 10 v 1 2 2 where. 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. Fluid temperature ranges from 40 f to 200 f.

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. Acfm is assumed to be at the average air temperature. A tube bundle of the heat exchanger contains 111 tubes the diameter of one tube is 25x2 5 mm. 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.

Geothermal heating and cooling.