Cooling Tower Pump Head Calculation

Correctly piping the suction and discharge of your cooling tower condenser water pump is critical.

Cooling tower pump head calculation.

In the ideal case the cold water temperature will be equal to the wet bulb temperature. Pump flow rate 30 m3 hr. This is practically not possible to achieve. If you don t size the pressure drop right it won t get there.

It must also provide the energy head necessary to raise water from a low to a higher static head level. Some fairly catastrophic events can occur if either is improperly installed. As this occurs a small volume of water is evaporated reducing the temperature of the water being circulated through the tower. Cooling tower efficiency calculation.

Also brief about cooling tower mass balance of make up water requirement in system drift losses or windage evaporation losses blowdown or draw off. Sizing the tower water pump can be a challenge too. For the tower piping circuit the pump must overcome the piping flow friction loss. Pump power 15 7 kw.

The calculation is presented below. The most common open system is the cooling tower portion of a chilled water system as depicted below. The water is at20c has a density of998 kg m3 a vapour pressure of0 023 bara and a viscosity of1cp. Cooling tower efficiency is limited by the ambient wet bulb temperature.

Pump head is the total resistance that a pump must overcome. The calculation of cooling tower efficiency involves the range and approach of the cooling tower. 526 charlotte avenue burkburnett tx 76354. Pumps are typically sized for 65 feet of head.

Piping condenser cooling tower losses and valves. We ll assume that the pump efficiency is70. Starting with the suction piping it is important to take precaution to avoid air pockets which can destroy a pump in pretty short order. The pump head calculation depends on the type of system that the pump serves.

A break in the piping system occurs where the water exits the spray nozzles and is exposed to. Net positive suction head available 22 13 m. Keep in mind that you need the pump to develop enough pressure to get water to the highest and farthest places in the plant.