Cooling Tower Pump Head Calculation

In this article explained about basic concepts of cooling tower types of cooling towers formula for cooling tower efficiency.

Cooling tower pump head calculation.

Sizing the tower water pump can be a challenge too. Piping condenser cooling tower losses and valves. Some fairly catastrophic events can occur if either is improperly installed. A break in the piping system occurs where the water exits the spray nozzles and is exposed to.

Keep in mind that you need the pump to develop enough pressure to get water to the highest and farthest places in the plant. It must also provide the energy head necessary to raise water from a low to a higher static head level. Starting with the suction piping it is important to take precaution to avoid air pockets which can destroy a pump in pretty short order. Also brief about cooling tower mass balance of make up water requirement in system drift losses or windage evaporation losses blowdown or draw off.

Cooling tower efficiency calculation. The calculation is presented below. Pumps are typically sized for 65 feet of head. The calculation of cooling tower efficiency involves the range and approach of the cooling tower.

This is practically not possible to achieve. 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 most common open system is the cooling tower portion of a chilled water system as depicted below. Cooling tower efficiency is limited by the ambient wet bulb temperature.

If you don t size the pressure drop right it won t get there. Net positive suction head available 22 13 m. 526 charlotte avenue burkburnett tx 76354. The pump head calculation depends on the type of system that the pump serves.

We ll assume that the pump efficiency is70. Pump flow rate 30 m3 hr. In the ideal case the cold water temperature will be equal to the wet bulb temperature. Pump total differential head 134 8 m.

As this occurs a small volume of water is evaporated reducing the temperature of the water being circulated through the tower. Pump head is the total resistance that a pump must overcome. Pump power 15 7 kw.