Cross Flow Cooling Tower are huge and important parts of modern power plants with water ﬂow rates 30000 tons per hour and more. Therefore better understanding of their performance is the goal of many engineers and researchers at the ﬁeld of heat and mass transfer. Evaporative cooling of water in the cooling tower depends on atmospheric conditions (temperature, humidity and wind conditions),design and geometric parameters of the tower, and total mass ﬂow rate of water. High accuracy simulation of cooling tower performance can help correctly to choose many parameters of cooling tower.Additionally, the simulation of Cross Flow Cooling Tower performance helps signiﬁcantly reduce its long and expensive testing at variable atmospheric conditions.
Principle of Operation:
Heat from the Process Fluid is circulated through the coil of the closed circuit cooler gets dissipated through the coil tubes to the water cascading downward over the tubes. Simultaneously, air is drawn from air inlet louvers from the base of the cooler and travels upward over the coil. A small portion of the water gets evaporated and the warm moist air is discharged to the atmosphere which removes the heat from the process fluid.
1.Low pumping head, thus lower operational cost.
2. Accepts variation in water flow without changing the distribution system
3.Easy maintenance access to vital parts.
4.Reduced drift loss due to the absence of water droplets.
5.Lower in noise due to absence of water noise.
6.Larger foot print of the tower.
7.Large air inlet surface makes icing difficult to control.
8.Tendency of uneven air distribution through the infill due to the large inlet surface.
Cross flow cooling towers should be specified when the following specifications are important:
• To minimize pump head.
• To minimize pumping and piping cost.
• To minimize operating cost.
• When noise limitations are a significant factor.
• When variance in hot water flow is expected.
• When easy maintenance is a concern