Cooling Tower Tank Size

Blowdown is a portion of circulating water that is discharged in order to lower solids concentration due to evaporative cooling.

Cooling tower tank size. Evaporative cooling towers like the advantage power tower series provide cooling by evaporating a small amount of the recirculated process water flow. Calculate the total lbs hour of material your machine uses and divide it by the lbs ton listed below for your specific process. Range of cooling in f t1 t2 area wet bulb temperature in f twb the design heat load is determined by the flow rate and the range of cooling and is calculated using the following formula. Cooling tons x 6 minimum tank volume.

It is important to have some excess flow in the pump and tower design for these situations. Flow rate in gpm. Drift loss in cooling tower is a function of drift eliminator design. Basic cooling tower equipment.

Approximately 1 000 btu s are required to evaporate 12 gallons of water. A cooling tower is a heat rejection device that rejects waste heat to the atmosphere through the cooling of a water stream to a lower temperature. Tanks are structurally supported around top and sides as required. Drift loss 0 02 water supply for new development in eliminator design blowdown.

Drift is entrained water in the tower discharge vapor. To size your production machine cooling load use the following information. This will give you the tons of cooling required at 50 fleaving water temperature. Cooling tower pump recirculation pump process pump stand by pump.

The wet bulb temperature wbt of the air entering the cooling tower is an independent variable that is a fundamental factor in dictating the appropriate size of a cooling tower. Towers that are located a long way from the tank. Or for high flow systems greater than 3 gpm ton select a tank size so that the water will reside in the tank for at least 1 minute. It is both the theoretical limit to the exiting cooled water temperature and the only specific air parameter necessary in cooling tower selection.

Drift loss varies between 0 1 and 0 2 of circulation flow. Watch for these special circumstances that may require special tank sizing. Heat load btu hr gpm x 500 x. Cooling tower sizing program.

Plants commonly operate over the design capacity which means the cooling tower needs to keep up. All tanks have baffled compartments if required. The following design data is required to select cooling towers. Water make up requirements of cooling towers.

It can be as low as 0 01 of circulation flow if the cooling tower has windage drift eliminators. Cooling towers may either use the evaporation of water to remove process heat and cool the working fluid to near the wet bulb air temperature or in the case of closed circuit dry cooling towers rely solely on air to cool the working fluid to near. Towers that hold a lot of water. Determining a cooling tower type and understanding some of the key design considerations will get you headed in the right.