March 9, 2020

What is a Boiler Mechanical System?

Boiler Mechanical System and Its Working Principle

Boiler Mechanical Systems are primarily valuable for industries for generating steam, through which they can generate electricity. The boiler is a device generally used to heat the liquid, therefore used to generate power. It looks like a close vessel from outside.

Working principle of Boiler Mechanical System

Water fills in boilers; then the closed vessel is heated to convert the water into steam. The steam thus causes a lot of kinetic energy, which is helpful in rotating turbines. Hence, electricity is generated.

Boiler Mechanical Systems are divided into various classes:

Fire Tube Boilers
Water Tube Boilers
Single Tube Boilers
Multitubular Boilers
Internally Fired Boilers
Externally Fired Boilers
Vertical Boilers
Horizontal Boilers
Natural Circulation Boilers
Forced Circulation Boilers

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Boilers are used as heat sources in hydronic HVAC systems. There are different types of boiler designs, but they generally have four main components:

Burner: This component starts combustion, controlled by the electronic commands from a thermostat. The burner nozzles spray and ignite the fuel, heating the water inside the boiler.

Combustion Chamber: The fuel is burned inside the combustion chamber, which is commonly made of cast iron. According to the ASME Boiler and Pressure Vessel Code, the temperature of a commercial heating boiler can reach up to 250°F.

Heat Exchanger: This component provides heat from the combustion chamber to the water without direct contact, similar to a boiling pot. The pressurized hot water is then pumped to radiators or fan coils, to provide space heating.

Plumbing System: Host water is distributed through an insulated piping network, and the design and material can change depending on the type of boiler.

Questions and Answers related to Boiler Mechanical System:

What do you mean by a valve?

A:- An instrument in the boiler that is used to control the fluid flow.

What is the use of a Piston and Cylinder?

A:- Piston is a piece of metal fitted inside the cylinder. The piston moves inside the cylinder with the change of pressure of the fluid. Here, fluid doesn’t necessarily depict the liquid; however, even gases and vapor can be the fluid.