Water To Air Heat Exchanger Calculations

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.

Water to air heat exchanger calculations.

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. Convective heat transfer coefficient for air. Only sensible heat transfer occurs. Liquid cooling by air to water or liquid transfer applications.

Related mobile apps from the engineering toolbox. Garage and out building heat. Many other applications utilizing liquid to air or air to liquid transfer. Air is assumed to be dry at atmospheric pressure and at zero elevation.

The water flow is cooled from 100 to 45 c. Liquids are considered incompressible. 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. Download the excel spreadsheet templates in this article to make preliminary heat exchanger design calculations.

Calculation assumes true counter flow. Acfm is assumed to be at the average air temperature. Go bigger not smaller. These templates use s i.

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. The model numbers shown in the calculator are only a partial listing of our standard products. 1 kcal m 2 h c 1 16 w m 2 c 2 can be modified to. Geothermal heating and cooling.

1 sweat inlet outlet connections are standard on all models. Fluid temperature ranges from 40 f to 200 f. The velocity of the methanol flow through the tubes is 0 8 m s w. 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. The convective heat transfer coefficient for air flow can be approximated to. Fluid properties are used at the average temperatures. A single pass shell and tube heat exchanger heats methanol with water from the initial temperature of 20 to 45 c.

Heat recovery app free apps for offline use on mobile devices. Heat exchanger efficiency calculator. A tube bundle of the heat exchanger contains 111 tubes the diameter of one tube is 25x2 5 mm. H c 10 45 v 10 v 1 2 2 where.

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.