Question

What are the characteristics of high pressure boiler?

Answer 1

Advantages of High-pressure Boilers:

High-pressure boilers use the forced circulation of water which ensures the positive circulation of water and increased evaporative capacity.

They require less heat of vaporization.

They are compact and thus require less floor space.

Due to the high velocity of water, the tendency of scale formation is minimized.

All parts are uniformly heated and the danger of overheating is minimized.

The steam can be raised quickly to meet the variable load requirements without the use of complicated control devices.

The plant efficiency is increased.

With the use of high-pressure boilers, the steam generation is economical.

Answer 2

Some of the characteristics of a high-pressure boiler are listed below:

• Power of Steam: Steam is formed when water expands 1600 times.
• Combustion Efficiency.
• Thermal Efficiency.
• Fuel-to-Steam Efficiency.
• Stack Temperature and Losses.
• Excess Air.
• Radiation and Convection Losses.
• Heating Surface.

What are advantages of high pressure boilers?

• Forced Circulation of water is used in High-Pressure boilers which ensures positive circulation of fluid/water.
• The tendency of scale formation is minimized due to the high velocity of the water.
• The stem genaeration is economical with the use of high-pressure boilers.

What are boilers explain any 4 important qualities of a good boiler?

• It should have minimum fuel consumption and less initial cost.
• It should start quickly.
• It should be light in weight, occupy less space and it should be able to meet the variable demand of steam.
• The joints should be leak proof.

Which safety valve is used on high pressure boilers?

• Relief valves are used in the high pressure boiler.
• High and low pressure boilers use pressure relieve valves.
• The pressure is maintained by releasing excess pressure.

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