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What is pf fired boiler?
For getting better efficiency from boiler, coal is pulverized in mills (powder form) before entering into boiler along with hot air. This is done in order to control damage to boiler tubes and plates due to high (but cheap) sulphur content in coal. These types of boiler are usually called super critical boiler and works on high pressure (3600psi) and temperature (610 degree C) unlike sub critical boilers. alok bh.
What materials are used in boilers?
steel, copper and iron are the materials that are used in boilers.
What is supercritical boiler?
The following extract taken from an article by Ingo Paul in Energy Issues No 19 April 1999 published by the World Bank [external link] briefly describes the difference between a subcritical and a supercritical boiler. "Supercritical" is a thermodynamic expression describing the state of a substance where there is no clear distinction between the liquid and the gaseous phase (i.e. they are a homogenous fluid). Water reaches this state at a pressure above 22.1 megapascals (MPa) The "efficiency" of the thermodynamic process of a coal fired power (sic) describes how much of the energy fed into the cycle is converted into electrical energy. The greater the output of electrical energy for a given amount of energy input, the higher the efficiency. If the energy input to the cycle is kept constant, the output can be increased by selecting elevated pressures and temperatures for the water-steam cycle. Up to an operating pressure of around 19 MPa in the evaporator part of the boiler, the cycle is sub-critical. This means, that there is a non-homogeneous mixture of water and steam in the evaporator part of the boiler. In this case a drum-type boiler is used because the steam needs to be separated from water in the drum of the boiler before it is superheated and led into the turbine. Above an operating pressure of 22.1 MPa in the evaporator part of the boiler, the cycle is supercritical. The cycle medium is a single phase fluid with homogeneous properties and there is no need to separate steam from water in a drum. Once-through boilers are therefore used in supercritical cycles. www.whizkris.com
What is ECR of boilers?
Economic Continuous Rating (ECR)
What is the efficiency of solid briquette fired boilers?
35% efficiency
What are critical and super critical boilers?
critical boiler operating steam parameter 221.12bar and 375 centigrate . you can rise in pressure and temperatureabove the critical point. that is called supercritical boiler.
What is silica level in boilers?
silica level changes according to boiler type sub or super critical boiler but its level should be less than 200ppm at rated condition
Do boilers use water?
boilers sometimes do use water only for cleaning and drying clothes
How high can steam pressure achieve?
Steam pressure can be raised as high as the rating of the steam generator. Some super-critical steam generators actually operate at over 15,000 psi. Critical pressure/temperature for steam is 3206 psia, and 705^F. This is the point at which steam and water are indistinguishable from one another. All critical and super-critical steam generators require forced flow, (the water/steam is pumped through the generator). The temperature or the pressure can be raised above critical values, with the use of specialized equipment. Generally speaking, non-forced flow boilers can only achieve about 1500 psia, as the density of the steam approaches the density of the water, preventing natural circulation.
What do most homes use for heating?
Gas boilers.
What is meant by the super boiler?
A Super Boiler is an energy saving boiler with advanced controls. Super boilers reduce the cost of fuel as well as carbon based emissions up to 40%.
What are some critics' ideal boilers?
There are many ideal boilers for critics. Some ideal boilers for critics include the Buderus boilers, the ORLAN boilers, and lastly the Crown Boiler company boilers.
Where can one purchase a steam boiler for commercial use?
There are many websites and companies that offer steam boilers for commercial use. Some of these websites and companies that offer boilers are Home Depot and ZORO Tools.
Why steam boilers are coil type boilers?
All boilers are not coil type think of the pork chop steam boilers AKA cast iron sectional
What are the use of peerless boilers?
Peerless boilers are a good energy saving way to heat up a home. They use a hydronic heating system and are quiet and efficient and very clean, unlike many other heating systems.
What are all the products made in bhel trichy?
Utility Boilers Industrial Boilers CFBC Boilers HRSG
Which friend has a mother who is super critical of them?
The TV show? Monica
