Boiler Economiser:

Boiler Economiser ( Sometimes Called Economizer ) is the Energy improving device that helps to reduce the cost of operation by saving the fuel.

The economizer in Boiler tends to make the system more energy efficient.

In boilers, economizers are generally Heat Exchangers which are designed to exchange heat with the fluid, generally water.

Boiler Economiser and Waste Heat Recovery Concept

Boilers are generally designed to produce steam from water. Water is converted to steam by transferring both sensible and latent heat.

Sensible heat is the amount of heat required to increase the temperature of water at constant pressure without changing its liquid state, while Latent heat is the amount of heat required to change the state from Liquid to Vapor at constant temperature and pressure.

The exhaust from the boilers is generally in the temperature range of 200°C – 250°C, so there are a huge amount of losses from the boiler if any heat recovery devices are not installed after it.

If the exhaust gases which are leaving the Boiler at such high temperature is made to pass through the Economiser in order to provide the required sensible heat to the water by increasing its temperature, it will reduce the heat load on the boiler to the greater extent.

We at Thermodyne Engineering Systems manufacture Boiler Economiser that suit your boiler system and will increase its overall efficiency from 3% – 5%.

Increase in boiler efficiency will save a lot of your operating cost and eventually will prolong the life of your boiler system.

Also Read: Air Pollution Control Equipment

The function of Boiler Economiser

The Economizer in Boiler works on the principle of Heat Transfer. Heat transfer usually takes place from high temperature to low temperature.

In the case of Boilers, flue gases or exhaust from the boiler outlet are at high temperature and water that needs to be preheated is at low temperature.

So, this temperature difference between water and flue gases helps to increase the feed water temperature.

Depending on the type of operations, design of Economisers can be smoke tube type or water tube type.

In smoke tube type flue gases are inside the tubes and water is on the shell side while in the water tube type, water is in the tube and flue gases are on the shell side.

Also Read: Coil Type Steam Boiler

Types of Economiser in Boiler

Boiler Economisers can be classified in various ways depending upon economizer’s function and operation.

An economizer can be made pressurized or non-pressurized depending on the required water temperature through it.

Thermodyne manufactures both Pressurized Economisers as well as non-pressurized Economisers to suit your needs.

Generally, If the required water temperature is above the normal boiling point at atmospheric pressure, then the Boiler Economisers are needed to be pressurized and if they are below the boiling point they can be made non-pressurized.

Thermodyne boilers has a lot of experience in manufacturing Economisers and is tailor-made in order to suit your specific requirements.

Also Read: High Pressurized Boiler

The compact designs Thermodyne Boiler Economiser further reduce the flue gas losses and will save you a good fortune in terms of the fuel usage thereby lowering the operating cost.

Contact us for more details related to Thermodyne Boiler Economisers – Talk to Thermodyne Boilers Sales Team

Boiler Economiser FAQs

What is economiser in boiler? Economizers, in steam power plants , used to capture the waste heat from boiler flue gas and transfer it to the boiler feedwater. What are the types of economisers? There are two main types of economizers: non-condensing economizer and condensing economizer. Non-condensing economizers are mainly used because this type of economizers increase efficiency by 2% to 4%. Why economiser is used in boiler? Boiler economizer used to improve steam boiler system’s efficiency. Economizer is kind of heat exchanging device.

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