Cooling Tower Pump Head Calculation

Pump head is the total resistance that a pump must overcome.

Cooling tower pump head calculation. The pump head calculation depends on the type of system that the pump serves. Cooling tower efficiency calculation. The calculation is presented below. Pump total differential head 134 8 m.

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. The calculation of cooling tower efficiency involves the range and approach of the cooling tower. We ll assume that the pump efficiency is70. Correctly piping the suction and discharge of your cooling tower condenser water pump is critical.

In this article explained about basic concepts of cooling tower types of cooling towers formula for cooling tower efficiency. Sizing the tower water pump can be a challenge too. It must also provide the energy head necessary to raise water from a low to a higher static head level. This is practically not possible to achieve.

Also brief about cooling tower mass balance of make up water requirement in system drift losses or windage evaporation losses blowdown or draw off. Keep in mind that you need the pump to develop enough pressure to get water to the highest and farthest places in the plant. 526 charlotte avenue burkburnett tx 76354. Pump flow rate 30 m3 hr.

If you don t size the pressure drop right it won t get there. The water is at20c has a density of998 kg m3 a vapour pressure of0 023 bara and a viscosity of1cp. The most common open system is the cooling tower portion of a chilled water system as depicted below. Some fairly catastrophic events can occur if either is improperly installed.

For the tower piping circuit the pump must overcome the piping flow friction loss. Starting with the suction piping it is important to take precaution to avoid air pockets which can destroy a pump in pretty short order. Cooling tower efficiency is limited by the ambient wet bulb temperature. In the ideal case the cold water temperature will be equal to the wet bulb temperature.

Piping condenser cooling tower losses and valves. Pumps are typically sized for 65 feet of head. Net positive suction head available 22 13 m.