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What is cooling tower Slideshare?

What is cooling tower Slideshare?

A cooling tower is an equipment used to reduce the temperature of a water stream by extracting heat from water and emitting it to the atmosphere. Most towers employ fills (made of plastic or wood) to facilitate heat transfer by maximizing water and air contact.

What are the three basic designs of cooling towers?

There are three main types of cooling towers that are defined by how water or air pass through them. These types include crossflow, counterflow, and hyperbolic.

What are the factors affecting cooling of cooling tower?

Cooling tower performance depends on four factors (1) Range; (2) Heat load; (3) Ambient wet-bulb temperature or relative humidity and (4) Approach. Range is the temperature difference between the hot water inlet and cold water outlet at the tower.

What industries use cooling towers?

The primary industries that use cooling towers include petroleum refineries, chemical manufacturing plants, primary metals processing plants, glass manufacturing plants, rubber products manufacturing plants, tobacco products manufacturing plants, and textile manufacturing plants.

Is cooling tower a heat exchanger?

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. As this occurs, a small volume of water is evaporated, reducing the temperature of the water being circulated through the tower.

What is capacity of cooling tower?

The Figure 7.2 illustrates various cooling tower types. Mechanical draft towers are avail- able in a large range of capacities. Normal capacities range from approximately 10 tons, 2.5 m3/hr flow to several thousand tons and m3/hr.

Which working fluid is used in cooling tower?

Heat transfer methods wet cooling towers or evaporative cooling towers operate on the principle of evaporative cooling. The working coolant (usually water) is the evaporated fluid, and is exposed to the elements.

What is a purpose of cooling tower?

Cooling towers are primarily used for heating, ventilation, and air conditioning (HVAC) and industrial purposes. Cooling towers provide a cost-effective and energy efficient operation of systems in need of cooling. More than 1,500 industrial facilities use large quantities of water to cool their plants 2.

What is the working principle of a cooling tower?

1. What Is A Cooling Tower 2. How Do Cooling Towers Work Explanation 3. Cooling Tower Working Priciple 4. What Are Cooling Towers Used For 5. Cooling Tower Applications 6. Types Of Cooling Tower Systems 7. How Cross Flow Cooling Towers Work 8. How Counter Flow Cooling Towers Work 9. How Forced Draft & Induced Draft Cooling Towers Work 10.

How is water pumped into a cooling tower?

That water is pumped through pipes directly into the cooling tower. Cooling tower nozzles are used to spray the water onto to the “fill media”, which slows the water flow down and exposes the maximum amount of water surface area possible for the best air-water contact. The water is exposed to air as it flows throughout the cooling tower.

How does a mechanical draft cooling tower work?

• Mechanical draft cooling towers are much more widely used. These towers utilize large fans to force air through circulated water. The water falls downward over fill surfaces which help increase the contact time between the water and the air. This helps maximize heat transfer between the two.

How does an electric cooling tower fan work?

The air is being pulled by an motor-driven electric “cooling tower fan”. When the air and water come together, a small volume of water evaporates, creating an action of cooling. The colder water gets pumped back to the process/equipment that absorbs heat or the condenser.