In recognition of this probability, all major cooling tower manufacturers currently market towers equipped with propeller type fans. One helpful means to that end is the water cooling tower. Power Factor(cos Φ) Voltage (V) Power Consumption (√3xVxIxcosΦ) Power Consumption (kW meater).
Propeller fans are mounted beneath the fill to blow the air up through the tower. With this design, the tower is mounted on legs, providing easy access to the fans and their motors.
Evaporation is the key to maximizing efficiency.
We will calculate the mass flow rate of air needed to cool 150gpm of tower inlet water to the desired temperature.
Based on the previous parts in this article series, we know that reducing the pump and tower fan speed are two of the options we can choose for optimizing the efficiency of an evaporative cooling tower. The most important caveat when applying the Affinity Laws is that they assume no change in efficiency. E-gpm per W, nominal Capacity.
E-gpm per W, cooling tower fan rated motor power. E-gpm per hp, cooling tower fan rated motor power. The heat rejection device shall be an . W with the fan adjusted to deliver the desired air flow at the lowest power consumption.
Automatic variable pitch blades can vary air flow in response to changing load conditions. In the early days of cooling tower manufacture, towers were constructed primarily of wood. Some additional calculation such as water make-up, fan and.
Field erected type cooling towers are usually preferred for power plants, steel. Cooling Tower Design Consideration.
Download as PDF File (.pdf), Text File (.txt) or read online. Knowing specific volume or density becomes important when performing fan calculations. As you may surmise, the vast majority of time either the air or water flow of the evaporative cooling tower can be reduced and energy can be saved.
In many cases, facility owners quickly adopt the idea of varying fan speeds, as this . Using the equation for Air Horsepower we further calculate that the Total Fan Efficiency at.
The objective of the cooling tower model is to predict the exiting water temperature and the fan power required to meet the exiting water setpoint temperature. This methodology is used to calculate the exiting water temperature in the free convection regime (water pump on, tower fan off) and with the tower fan operating . The cooling tower calculation is based on the most generally accepted theory of the cooling tower heat-transfer process .
No comments:
Post a Comment
Note: only a member of this blog may post a comment.