Industrial processes, such as plants and machinery generate a large amount of heat. Cooling tower suppliers and exporters believe that the continuous heat so produced needs to be dissipated to operate efficiently. The heat so generated must be dissipated to the environment through an exchange process.
The exchange process is done by cooling tower technology, for example, FRP-induced draft cooling tower. Although cooling towers are the devices of the 20th century, even today they are in great demand and are constantly updated with new technologies. Cooling tower primarily works towards dissipating the industrial heat into the environment, but are also believed to cause pollution, as they release water vapor into the atmosphere.
Cooling tower suppliers and exporters design different types, capacities, and sizes, however, the basic function remains the same. Some of the most popularly used cooling towers include
Shape characterized cooling tower
Hybrid draft cooling tower
FRP cooling tower
Induced drop cooling tower
Cooling towers are based on the method of heat transfer. Let us discuss the 3 main cooling towers employed by industries at large.
Field FRP Cooling Tower
The field FRP cooling tower is a vertical FRP-induced draft cooling tower with a draft counter floor design. They have tremendous cooling efficiency and are ideal products concerning the space economy. The body of the tower is built from fiberglass reinforced plastic, with sufficient structural strength and capability to withstand velocity and industrial vibrations.
Buyers can have local repairs done easily because of the simple design. Local industrial impacts can be easily countered by the field FRP-induced draft cooling towers. The tower is built from a shockproof material and can be easily suited for outdoor mounting. FRP cooling towers have fan blades, made from cast aluminum. As such problems from gear drives will not be encountered.
The drift eliminator of the cooling tower prevents loss of water and is made from PVC. It is easy for owners to maintain FRP-induced cooling towers, considerably because the fan is the only movable item of the entire structure. FRP-induced cooling towers have a fixed distribution system, and therefore all bearing and fictional problems are eliminated by the rotating sprinkler.
Natural Draft Cooling Tower
From the name itself, the national draft cooling tower system is an open direct contact mechanism for using cooling towers.
The presence of a heat exchanger allows the hot water to be cooled directly in contact with fresh air. It is possible to increase the heat transfer surface area by spraying hot water from nozzles present within the tower. When using the nozzles inside the tower, the temperature and humidity of the Air increase resulting in warmer moisture in the air.
On the other hand, the resultant of the process i.e. the cold water gets collected at the bottom. A fresh air supply to cool the hot water is also present at the bottom.
The presence of a cold water supply at the bottom helps counter the difference in density between the hot air in the top and the atmospheric air outside the cooling tower. A natural draft cooling tower is mostly employed in power stations, energy-intensive facilities - like petrochemical plants, natural gas plants, and refineries.
Induced Draft Cooling Towers
The induced draft cooling towers are available in two types, primarily the crossflow other counterflow. The crossflow-induced draft cooling towers are open sideways. Air is passed through the sides into the central chamber, also called the plenum chamber.
The water flows downward and is released at the top of the structure by using one or more fans. The characteristics of a crossflow-induced cooling tower include great airflow quantity, compared to the counterflow cooling tower. The fan horsepower may be higher, however, the contact service is less effective and the icing is a problem during the winter months.
On the contrary, the counterflow cooling towers are open straight-wise. The entrance to the air is present towards the bottom, the exit of the air is also designed at the bottom with a raised counter-current to induce a downward flow of water.
Similar to the crossflow-induced draft cooling tower, the air is exhausted at the top by using one or more fans. The quantity of airflow is lower along with low fan horsepower. However, counterflow cooling tower have low fire protection costs and a large basin area.
To Summarize
Cooling tower technology is a vital requirement today. Cooling brings along comfort. You may be up for a different cooling system given your budget, space, energy bill, availability of water, noise, and other environmental factors of the industry.
Before you pick out the suitable one, make sure you check the durability, warranty, design, and value by comparing it with other available products in the market. Every cooling tower type has its pros and cons. Cooling towers are easy to maintain and serve for long without the need for replacement.
Comments