because in cylindrical shape stress concentration is less so it can withstand at high pressure also.
see results in attached link: Philips 3-drum 'Accessable' boiler
Bending a rectangular sheet into a cylindrical shape.
A drumless boiler is obviously a boiler without a drum. The steam is fed into a header, then into a turbine for making electricity. Quality control of the water used is of extreme importance. Since there is no water level in a drum to maintain, feedwater must be constant with no interruption of any kind. With a drum type, water feed can be interrupted for a very short time. Not so with a drumless type.
Due to pascals law
Boiler drum manholes are often elliptical to provide a larger opening for maintenance and inspection while minimizing the structural weaknesses that can arise from larger circular openings. The elliptical shape distributes stress more evenly across the drum, enhancing its integrity under high pressure and temperature conditions. Additionally, the design allows for better sealing and reduces the risk of leaks. This combination of practicality and safety makes elliptical manholes a preferred choice in boiler design.
as the boiler drum is cylindrical in shape due to low stress concentration and in both end the diameter will be less.so for easy entry into the drum for a man the drum man hole is elliptical in shape.
as the boiler drum is cylindrical in shape due to low stress concentration and in both end the diameter will be less.so for easy entry into the drum for a man the drum man hole is elliptical in shape.
Your typical drum is a cylinder or shallow cylinder, with drum heads (the batter side, which you hit, and the resonant side, which is for more tone and sound quality) for the bases of the cylinder.
The steam drum separated the steam from the water and stream mixture in the boiler drum.
A drum typically has a cylindrical shape, featuring a circular top and bottom. The sides are often straight or slightly curved, allowing for resonance when struck. Drums vary in size and design, but this basic cylindrical structure is common across many types, such as snare drums and bass drums.
Purpose of the boiler drum is to collect steam from all the various tubes in a boiler, and send it to the turbine to spin the generator
boiler drum diffferential pressure level calculation explained
Generator
Overheating of water wall tubes may cause crack. Boiler will damage due to boiler drum level goes down.
Yes, they're usually cylindrical in shape.
10 figure we make from cylindrical shape
see results in attached link: Philips 3-drum 'Accessable' boiler