Cooling Tower Pump Head Calculation

Piping condenser cooling tower losses and valves.

Cooling tower pump head calculation.

Net positive suction head available 22 13 m. Pump flow rate 30 m3 hr. 526 charlotte avenue burkburnett tx 76354. Pump power 15 7 kw.

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 calculation of cooling tower efficiency involves the range and approach of the cooling tower. In the ideal case the cold water temperature will be equal to the wet bulb temperature. Pump head is the total resistance that a pump must overcome.

We ll assume that the pump efficiency is70. Cooling tower efficiency calculation. Pumps are typically sized for 65 feet of head. Keep in mind that you need the pump to develop enough pressure to get water to the highest and farthest places in the plant.

This is practically not possible to achieve. The water is at20c has a density of998 kg m3 a vapour pressure of0 023 bara and a viscosity of1cp. It must also provide the energy head necessary to raise water from a low to a higher static head level. Sizing the tower water pump can be a challenge too.

A break in the piping system occurs where the water exits the spray nozzles and is exposed to. Cooling tower efficiency is limited by the ambient wet bulb temperature. Pump total differential head 134 8 m. The calculation is presented below.

For the tower piping circuit the pump must overcome the piping flow friction loss. In this article explained about basic concepts of cooling tower types of cooling towers formula for cooling tower efficiency. Correctly piping the suction and discharge of your cooling tower condenser water pump is critical. Also brief about cooling tower mass balance of make up water requirement in system drift losses or windage evaporation losses blowdown or draw off.

The pump head calculation depends on the type of system that the pump serves. Some fairly catastrophic events can occur if either is improperly installed. If you don t size the pressure drop right it won t get there.