Water To Air Heat Exchanger Calculations

Have no problems with a c due to air flow and very nice heat.

Water to air heat exchanger calculations.

Calculate the required heat transfer area based on values needed. 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. Fluid temperature ranges from 40 f to 200 f. Heat recovery app free apps for offline use on mobile devices.

The convective heat transfer coefficient for air flow can be approximated to. 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. Heat exchanger efficiency calculator.

Many other applications utilizing liquid to air or air to liquid transfer. Liquids are considered incompressible. Related mobile apps from the engineering toolbox. Go bigger not smaller.

Calculation assumes true counter flow. 1 sweat inlet outlet connections are standard on all models. The model numbers shown in the calculator are only a partial listing of our standard products. 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.

The velocity of the methanol flow through the tubes is 0 8 m s w. Geothermal heating and cooling. 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. Acfm is assumed to be at the average air temperature.

These templates use s i. Only sensible heat transfer occurs. 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. Fluid properties are used at the average temperatures.

Air is assumed to be dry at atmospheric pressure and at zero elevation. A single pass shell and tube heat exchanger heats methanol with water from the initial temperature of 20 to 45 c. 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.

Garage and out building heat. 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. 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. Convective heat transfer coefficient for air.

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.