Cooling Tower Pump Head Calculation

Cooling tower efficiency calculation.

Cooling tower pump head calculation.

As this occurs a small volume of water is evaporated reducing the temperature of the water being circulated through the tower. Some fairly catastrophic events can occur if either is improperly installed. 1 1 cooling tower a cooling tower is a specialized heat exchanger in which air and water are brought into direct contact with each other in order to reduce the water s temperature. Cooling tower efficiency is limited by the ambient wet bulb temperature.

526 charlotte avenue burkburnett tx 76354. Correctly piping the suction and discharge of your cooling tower condenser water pump is critical. The pump head calculation depends on the type of system that the pump serves. The most common open system is the cooling tower portion of a chilled water system as depicted below.

A break in the piping system occurs where the water exits the spray nozzles and is exposed to. If you don t size the pressure drop right it won t get there. Pump flow rate 30 m3 hr. Pumps are typically sized for 65 feet of head.

Sizing the tower water pump can be a challenge too. Pump power 15 7 kw. The water is at20c has a density of998 kg m3 a vapour pressure of0 023 bara and a viscosity of1cp. Pump total differential head 134 8 m.

Starting with the suction piping it is important to take precaution to avoid air pockets which can destroy a pump in pretty short order. We ll assume that the pump efficiency is70. The calculation of cooling tower efficiency involves the range and approach of the cooling tower. Pump head is the total resistance that a pump must overcome.

Piping condenser cooling tower losses and valves. In the ideal case the cold water temperature will be equal to the wet bulb temperature. Net positive suction head available 22 13 m. In this article explained about basic concepts of cooling tower types of cooling towers formula for cooling tower efficiency.

Keep in mind that you need the pump to develop enough pressure to get water to the highest and farthest places in the plant. The calculation is presented below. For the tower piping circuit the pump must overcome the piping flow friction loss.