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What are the types of once through boilers?
Benson Boiler , Sulzer boiler are the main subtypes of once-through boiler
What is the meaning of once through boiler?
The term "once-through boiler" refers to a special type of water-tube boiler composed oftubes, in which water is input at the bottom, and steam is produced from the top.
How do you calculate energy required to produce 1 kg of steam in Boiler?
The energy required for a boiler to produce 1kg of steam is dependent on the size and pressure exerted by the boiler. The output is described as the boiler horsepower. Once the dimensions are known calculation is a simple ratio.
HOW OFTEN Should you blow down a boiler?
ANSWER: If it's a steam boiler: Once a month. If it's a forced hot water boiler-You don't have to. You'll only be adding more air into the system causing more noise.
What is the function of economizer in bent tube boiler?
The flue gases, after leaving the main boiler and the superheater, will still be hot. The energy in these flue gases are used to preheat the already preheated feed water once more by means of the economizer. The economizer is a heat exchanger mounted in the first part of the chimney to improve the thermal efficiency of the boiler. In broad terms a 10°C increase in feed water temperature entering the boiler will give an efficiency improvement of 2% of last mentioned.
How often should a boiler be cleaned?
once a year to ensure safety, realiability, and effeciency.
How old is Stelrad Groupa Ideal WLx gas boiler?
My Ideal WLx wall hung boiler was installed in 1984 and has been in service since that date. The boiler was dismantled once to fit new seals between the two cast iron sides of the main water chamber and that must have been done about 6 years ago. The boiler works perfectly and continuously for hot water and central heating. Mr. B S. Colchester Essex.
What is component initiation in VHDL?
In structural modeling of VHDL, the concept of components is used. In this model, the system to be designed is considered as a combination of sub structures. These sub structures are called components.For example, a full adder is a combination of two half adders and an or gate. Hence, the components used for designing a full adder arehalf adderOR gateInitially, these components are mentioned in the architecture of a full adder VHDL program. We call this as component initiation. Then the components are called onto the main program and used.Remember, we are using the functionality of the components in main program but we are not coding them in the main program. The code for the component programs will be present somewhere else in the project.Means, code them once and use them infinite number of times.
How to light a boiler safely and effectively?
To light a boiler safely and effectively, follow these steps: Ensure the boiler is turned off and cool before starting. Check for any gas leaks or unusual smells before proceeding. Open the boiler's access panel and locate the pilot light. Use a long lighter or match to ignite the pilot light, following the manufacturer's instructions. Once the pilot light is lit, carefully close the access panel. Turn on the boiler and adjust the temperature as needed. Monitor the boiler for any unusual sounds or smells, and contact a professional if any issues arise.
What is the average interval for boiler maintenance?
Experts recommend having your boiler looked at once a year, as problems usually crop up as the summer winds down and the weather gets colder. However, if you have someone look at your boiler during the off season (February and October are typically quiet months), you might be able to save a bit of money on maintenance.
What effect will blocked flue have on the boiler?
The combustion air will not be able to go out the chimney. Since it has to go somewhere it will leak out the boiler into the boilerroom. If the boiler is air tight the pressure inside the boiler furnace will become high enough that the air will surge or run backwards out the forced air fan. This could lead to combustion outside the boiler, explosion or at least filling the boiler room with smoke and poisonous gasses. The flue on our gas fired hot water system once became jammed shut. It was the smell of incomplete combustion that alerted me to a problem. If it had happened when everyone was asleep or no one was home, the house would have filled with carbon dioxide.
Why supercritical boiler are drumless boilers?
Answer to this question is very simple as the meaning of pressure is force on unit area, so more units of area or simply more area of a vessel containing a pressurized fluid in it exerting force on its walls, means, this vessel is more likely to burst than a vessel which has less diameter thus having less surface area for pressure to create damaging affect for a particular wall thickness. i don't think so Friends Cause .drum wall thickness is also sufficient or more as in comparison to the water walls .thickness main reason behind that in sub-critical boiler we have water and steam mix..inside the drum and we r separating vapour from water in that so for separation we using the boiler drum ..but in super-critical unit ..at critical pressure water is directly converted in to steam so there is no need to using of boiler drum to separate the mixture .and not need to recirculate the water into the wall circuit's also its known as once-through boiler
