What is continuous casting explain with the help of a diagram?
Continuous casting, also known as strand casting, is the process where a metal is heated until it liquefies. The molten metal is then allowed to solidify until it becomes a semi-finished slab that is later rolled in the finishing mill. It is used to cast metals of uninterrupted lengths.
What is continuous casting machine?
Continuous casting (CC) is a process of producing an infinite solid strand from liquid steel by continuously solidifying it as it moves through a CC machine. The basic operation of the CC machine is to convert liquid steel of a given composition into a strand of desired shape and size through a group of operations.
What is the function of a tundish in the continuous casting process?
The continuous casting tundish is the last metallurgical vessel through which molten metal flows before solidifying in the continuous casting mould. It serves as a buffer and links the discontinuous process of the secondary metallurgy in the ladle with the continuous casting process in the mould.
What is a tundish used for?
A tundish, for sealed heating (boilers) and unvented hot water heaters, is a device that allows water released from a combined T/PRV or single PRV (caused by an overpressure or over temperature in the system), to be passed from the valve to a downstream pipe and allowing the user to see the water passing, via an open …
Should a tundish drip?
Should a tundish drip? It is important to call a qualified boiler engineer if your tundish is dripping. This is a sign that either there is a fault with the pressure release valve or water pressure in the system is rising too high.
What does a tundish look like?
A tundish sits on the piping just outside the cylinder near the temperature and pressure relief valve. The tundish is a conical-shaped piece of plastic that sits within two pieces of pipe. It contains a clear window that allows you to see into the pipe and look out for any drips that shouldn’t be there.
How does a Megaflo work?
Megaflo – an unvented hot water cylinder The cold water is fed into the bottom of the tank at mains pressure. This forces the hot water out at the top and this then travels to the tap. This means that you have great pressure all the time, so gone are the days of the dreaded dripping shower!
Does Megaflo increase water pressure?
What is an Unvented or Megaflo System? A Megaflo or Unvented System provides high pressure hot water. The hot water flow rates are very much better than traditional open vented systems which rely on gravity and the height of the water tank.
How often does a Megaflo need recharging?
With just a handful of external controls, there is little to go wrong. However, the internal air gap needs recharging regularly. This is a reasonably straightforward process and should be carried out at least annually. An indication that the air gap needs charging is a visual warning via the Tundish.
Where do you put Megaflo?
As the Megaflo or Unvented system is pressurised, it can be sited virtually anywhere; it does not rely on a header tank to provide a head of pressure. Common locations are within an airing cupboard, a downstairs cupboard, utility room, loft, garage or basement.
Are unvented cylinders safe?
Unvented cylinders are designed to withstand considerable internal forces and are extremely safe to use when fitted with all the correct pressure equipment.
What size Megaflo do I need?
There are only a few details you need to take into consideration when choosing your Megaflo. The very first factor you should consider is the size – they range from 70L to 2,500L. Most customers looking for a domestic model of a Megaflo won’t exceed anything around 250L.
How long does a Megaflow take to heat up?
40 minutes
How long does water stay hot in a cylinder?
Once you think your cylinder is isolated, you should turn your hot tap on until no more water comes out. This could take around 20 minutes.
Should I leave hot water on constant?
It’s better to leave the hot water heater on all the time, rather than turning it on and off. As long as the tank has a good insulating jacket, it will keep the water hot all day, without needing to be constantly reheated.
What is the most economical way to heat your water?
Generally speaking, modern combi boilers are more energy-efficient than a hot water heater system with a tank or cistern. There are several other ways of water heating, including solar hot water systems, immersion heaters, electric water heaters, electric showers and, of course, kettles.
Is it expensive to have hot water on continuous?
The truth of the matter is that it is very unlikely to be cost effective to leave the water on all the time, unless you are using it constantly, and then you’ll be spending a lot of money on your hot water regardless.
Why does the hot water run out so fast?
Water Heater Runs Out Of Hot Water Quickly: Possible Reasons Why. As mentioned above, several things can cause a home’s hot water supply to run out faster than it should. The three most common culprits are sediment build up, a faulty heating element and a broken dip tube.
Does turning off water heater save money?
Turning off your water heater, like many other electrical appliances, can save you money each month on your bill. A small amount of heat escapes when the water heater is turned on, even though it’s well insulated. Typically, this loss of energy is about 10 percent of your bill.
Will shutting off water hurt water heater?
When the main water supply is shut off In most cases, it may not be necessary to turn off the water heater, but it also won’t hurt, either. However, there are two reasons when you should turn off the unit to prevent too much pressure or heat from building up inside the tank: The main water supply loses pressure.
Should I turn off my water while on vacation?
When you go on vacation, it’s best to also turn off your water heater, as well as the main water supply. Turning off the source of the heat (gas, electric) while you’re away will not damage your water heater.
When should I turn off water heater?
WAPT spoke to four plumbing companies that all said that homeowners should turn off the water heater if the water is not running for more than 24 hours. Residents can go to the breaker box in the home and throw the breaker to the “off” position for the water heater.
Can you turn water off and leave water heater on?
Yes, water heaters are filled from the top so they are like a big bucket. When you turn off the main, the water will remain in the water heater so you won’t have to worry about turning off the water heater—unless you are planning on leaving the water off for an extended period of time.
How do you turn off a gas water heater for a vacation?
If your hot water heater doesn’t have a vacation setting, simply manually adjust your temperature to resemble Vacation Mode by lowering the temperature to 50 degrees Fahrenheit, or the lowest setting your thermostat allows. You may also choose to turn your hot water heater off completely.
How long should you run water after shut off?
30 minutes