What are the classification of boilers?

Types of boilers

1) Hot water boilers: Those in which the heat carrying fluid is water, and the heating temperature does not exceed 100ºC. 2) High pressure hot water boilers: Those in which the heating is over 100° C. These can be water-tube or fire-tube, depending if it is water flowing into tubes or smokes.

What are the two classes of a boiler?

There are mainly two types of boiler – water tube boiler and fire tube boiler. In fire tube boiler, there are numbers of tubes through which hot gases are passed and water surrounds these tubes.

How steam boiler are classified?

Pressure of Steam: Boilers may be classified according to steam pressure in the boiler. Low pressure boiler: the steam pressure in boiler is below 80 bar. Cochran, Cornish, Lancashire and locomotive boilers are low pressure boilers. High pressure boiler: the steam pressure in the boiler is higher than 80 bar.

How many main boiler types are there?

three main types
There are three main types of boiler: combi, heat only and system. Heat only boilers (aka conventional or regular) work with a cylinder in the airing cupboard. System boilers are often found in modern homes with an ‘unvented’ hot water cylinder (but they can work with a vented cylinder also).

What is the principle of boiler?

Working Principle of Boiler

Hot gases are produced by burning fuel in the furnace. These hot gases are made to come in contact with the water vessel where the heat transfer takes place between the water and the steam. Therefore, the basic principle of the boiler is to convert water into steam by using heat energy.

What is boiler function?

The function of a boiler is to either produce hot water or steam. Hot water boilers heat water for the purpose of domestic or commercial heating and hot water supply. Steam boilers generate steam in order to power turbines for power generation and various other industrial heating applications.

What are the 3 types of boiler?

The Types of Boilers found in Long Island Homes
  • 1) Gas-Fired Boilers. Gas-fired boilers are one of the most highly-efficient and durable types of boilers. …
  • 2) Oil-Fired Boilers. Oil-fired boilers are typically found in areas that have little or no access to natural gas. …
  • 3) Electric Boilers.

What is the efficiency of boiler?

Boiler efficiency can be defined as the ratio of the useful heat output to the total energy input. Typical boiler efficiencies range from about 90% for the best solid biomass fuel boilers to close to 95% for oil- and natural gas-fired boilers, Table 3.2.

Which tube is used in boiler?

Boiler tubes are seamless tubes and are made of either carbon steel or alloy steel. They are widely used in steam boilers, for power generation, in fossil fuel plants, industrial processing plants, electric power plants, etc. Boiler tubes can either be medium-pressure boiler pipe or high-pressure boiler pipe.

Why does my house have 2 boilers?

Two boilers are also a good idea for larger homes that have poorly insulated hot-water systems and a lot of houses have a boiler connected to the central heating system with a boiler and then a smaller boiler heats a separate shower or areas of the home.

What is boiler 2 What are the accessories of boiler?

Boiler accessories are devices and plants that are installed with boilers to improve the operating condition and overall efficiency of the boiler plant. Boiler accessories are devices that are installed along the boiler and the surrounding area to increase the efficiency of the boiler.

What is dual purpose boiler?

A combi boiler, also known as a combination boiler, is highly efficient and compact, making them ideal for smaller homes. The name combi refers to the fact that these boilers are able to act as both a water heater and also a central heating unit.

Do I have a conventional or combi boiler?

You can usually tell if you have a system boiler by taking a quick look at it. Normally, there will be three copper pipes coming from the bottom of the boiler (as opposed to five with a combi). You should also be able to see a hot water cylinder but there won’t be any external pump for expansion storage.

What is the efficiency of boiler?

Boiler efficiency can be defined as the ratio of the useful heat output to the total energy input. Typical boiler efficiencies range from about 90% for the best solid biomass fuel boilers to close to 95% for oil- and natural gas-fired boilers, Table 3.2.

What is economizer in boiler?

Economizers are heat exchangers that transfer the heat in the flue gas to another medium‚ generally the boiler feed-water‚ although other streams are sometimes used such as make-up water. There are 2 types of economizers: non-condensing and condensing.