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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.
Wiki User
∙ 9y ago
Wiki User
∙ 12y agonbnh
In a pressure vessel, a circular section is the strongest for the amount of material used, also the ends might be spherical for the same reason.
Sameer khoja
any opening in pressure vessel is kept to a minimum, elliptical hole is lesser in size than a circular
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What does 1776-1976 quarter look like?
Washingtons face on front and solider playing the drum on the back
What is the stirrup doing in the human ear?
It's a part of the "transducer" that converts air sounds (large, low pressure) into liquid sounds (low amplitude, high pressure) - it connects the ear drum to the inner ear (a thin section of the skull.
What scientist was the first to use the crt?
The first cathode ray tube scanning device was invented by the German scientist Karl Ferdinand Braun in 1897. In 1907, the Russian scientist Boris Rosing (who worked with Vladimir Zworykin) used a CRT in the receiver of a television system that at the camera end made use of mirror-drum scanning.
What are things that rotate?
-- tires on a car when moving-- steering wheel when turning-- hands on a clock-- blade in a blender-- telephone dial-- ceiling fan-- every planet and natural satellite in the solar system-- the sun-- engines in a passenger jet-- propellers on a B-36-- bicycle wheels-- blade on a lawn mower-- router, table saw, electric drill, orbital sander, etc.-- tub in a front-loading washer-- helicopter rotor-- milkshake mixer-- drum in a clothes dryer-- blades on a hand-mixer-- children's carousel-- ferris wheel-- military troops on duty overseas
When will the space shuttle fly again?
I think it is unlikely it will ever fly again. But some people do want to revive it. For example, according to glactus in 'SPACE-TALK' thread 'United Space Alliance may keep Shuttle flying':-'United Space Alliance is pursuing NASA funding to assess the argument for flying the space shuttle for another 12 to 14 missions starting in 2013, after a restart of external fuel tank and solid rocket booster production.The company is NASA's prime contractor for space shuttle operations and at a forum this week, company officials proposed a commercial shuttle operations strategy. USA is seeking funds through NASA's Commercial Crew Development Round 2 competition to assess the proposal.This is good news as some space officials believe that tourists taken to Bigelow inflatable habitats attached to the ISS will be a viable commercial endeavor.'But NASA has said that they will not fly again, so there's no point 'continuing to bang the drum'. They have all been put to museums, parts of them have been removed, and their buildings have been demolished. In addition to this, after about 30 years, the likelyhood of accidents happening is probably increasing. Two disasters is enough, and there would be an awful lot of work involved in reviving them anyway.
Why boiler drum manhole in 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.
Why boiler drum in cylindrical shape?
because in cylindrical shape stress concentration is less so it can withstand at high pressure also.
What is the use of steam drum in boiler?
The steam drum separated the steam from the water and stream mixture in the boiler drum.
What is the purpose of boiler drum?
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
How calculate actual boiler drum level?
boiler drum diffferential pressure level calculation explained
What is the area between the steam drum and the mud drum ona boiler?
Generator
What will happen when boiler steam drum level goes down?
Overheating of water wall tubes may cause crack. Boiler will damage due to boiler drum level goes down.
What is efficiency of boiler?
see results in attached link: Philips 3-drum 'Accessable' boiler
Why silica increase in boiler drum inspite of 02ppm silca im boiler make up water?
This is due to steam seperation the silica remains in the drum water.
Why na3po4 dosing boiler drum?
Na3po4 dosing boiler drum is used mainly for two things. To soften calcium and magnesium to make them slushy and to increase phosphate.
What is efficiency of Lamont boiler?
see results in attached link: Philips 3-drum 'Accessable' boiler
What is drum boiler?
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.
