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Steam direct from a boiler contains microscopic droplets of liquid water. This steam must be superheated to vaporize these droplets. If this is not done the droplets will pit the turbine blades and can cause premature turbine failure.
Before the development of zirconium alloy fuel pellet cladding for nuclear reactors the reactor itself could not be operated hot enough to directly superheat its steam. So early designs proposed "hybrid" reactors, using a nuclear reactor to boil the water and make steam and a fossil fuel plant to superheat the steam. But zirconium alloys were developed before any "hybrid" reactors were actually built.
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How does a turbo blower work?
turbo blower is an equipment where a turbine is attached with the blower part. steam enters through the turbine inlet and expands through the blades and goes to the outlet which helps the turbine shafts to rotate. this turbine shaft is attached with the shaft of blower that makes the blower rotating.
What is the temperature before you call it steam?
Steam has a minimum temperature of 212 degrees Fahrenheit or 100 degrees Celsius, because those are the temperature at which water boils under normal pressure. Once steam goes below those temperatures it turns back into water. Steam can be heated above those temperatures under certain conditions and is then called superheated steam.
What points in the energy flow through power plant that might produce unwanted forms of energy and make the plant less efficient?
Let's consider a coal-fired power plant. Here we have a boiler that burns coal to produce steam. The boiler radiates heat and this radiant heat loss causes an efficiency penalty - about 1% of the energy in the coal is lost in radiation. Moisture that was in the coal to start with (and even moisture in the air because of humidity) gets heated up in the boiler but does not contribute to the process of combustion. This also causes and efficiency loss. Instead of being properly burned up un the furnace, some of the coal particles just fall to the bottom of the furnace, and is collected along with the ash. The steam that the boiler produced goes to a turbine that spins like a fan because of the pressure in the steam. The turbine drives a generator that produces the electricty that comes out of the power plant. Both the turbine and boiler have some losses due to friction, but the main loss in the turbine is the energy in the steam leaving the exhaust of the turbine. Because we want to condense this steam back into water so we can re-use it for supplying the boiler, the energy lost from the exhaust of the turbine actually makes its way to the cooling tower before being rejected into the atmosphere. It seems inefficienct to do it this way, but it's the best method we have at the moment.
What is a calorifier?
calorifier contains the number of coils through which steam flows. Steam from steam boiler goes to kitchen,laundry and for calorifier.Around these steam coils,water is flowing which needs to be heated. as u know temp of steam would be more than 100 deg,it heats the water which comes in contact with these coils . in most of the calorifiers,a set point mechanism is fitted which cuts the flow of steam whenrequired temp of water has attained
What is the purpose for nozzle?
as a geometrical analysis of the diffuser, the cross sectional area will be increased and converts the pressure into velocity, so the steam pressure will be drops and its velocity will be increased.
How is geothermal energy transferred?
Water is pumped from a energy plant into the earth trough pipes where it is heated by the heat of the earth. If the water is heated to the point of steam, it is forced up out of the earth and goes through a turbine. Thereafter, it is condensed back into liquid water in a condenser. This pressure differential between the high pressure steam and the low pressure in the condenser drives the turbine. If the water is merely heated up but not turned into steam, the water can be manually turned into steam on the surface at which point it goes through the same process.
What removes excess heat from the reactor's circulating water system?
In a PWR the reactor's circulating water (the primary circuit) goes through steam raising units where it gives up heat to the secondary water circuit and produces steam there which goes to the turbine. In a BWR the reactor produces a mixture of steam and water, the steam is separated and goes to the turbine where it is eventually cooled in the turbine condenser.
Which direction turbine rotor goes after steam admission?
counter clock wise
Why a steam turbine's wheel chamber pressure goes high?
due to diposition over blade HEAT
What happens when energy is removed from steam?
A boiler produces steam at a high temperature and pressure. It is used to push a piston or a turbine, to produce mechanical energy. The steam coming out can then be used to drive a low-pressure turbine and so on. At the end the steam can be condensed to extract the latent heat, and then the water goes back to the boiler.
How does coal power a turbine that goes through a generator to create electricity?
Burning coal is used to heat water to create steam. The pressure caused by the steam is used to turn a turbine. This in turn spins magnets next to wires. This create electricity.
How does a turbo blower work?
turbo blower is an equipment where a turbine is attached with the blower part. steam enters through the turbine inlet and expands through the blades and goes to the outlet which helps the turbine shafts to rotate. this turbine shaft is attached with the shaft of blower that makes the blower rotating.
What is the temperature before you call it steam?
Steam has a minimum temperature of 212 degrees Fahrenheit or 100 degrees Celsius, because those are the temperature at which water boils under normal pressure. Once steam goes below those temperatures it turns back into water. Steam can be heated above those temperatures under certain conditions and is then called superheated steam.
How does steam conduct electricity?
Steam generates electricity by spinning turbines located within electromagnetic fields. The steam can be generated by heating water using many types of fuels, such as coal, gas, and oil, or through the heat generated from controlled nuclear reactions.
How is coal turned into energy that you use in your everyday life?
AnswerCoal is burnt to heat water, and the steam produced turns a turbine. The turbine is connected to a generator and the generator generates electricity which goes through wires and transformers until it gets to your home.
What points in the energy flow through power plant that might produce unwanted forms of energy and make the plant less efficient?
Let's consider a coal-fired power plant. Here we have a boiler that burns coal to produce steam. The boiler radiates heat and this radiant heat loss causes an efficiency penalty - about 1% of the energy in the coal is lost in radiation. Moisture that was in the coal to start with (and even moisture in the air because of humidity) gets heated up in the boiler but does not contribute to the process of combustion. This also causes and efficiency loss. Instead of being properly burned up un the furnace, some of the coal particles just fall to the bottom of the furnace, and is collected along with the ash. The steam that the boiler produced goes to a turbine that spins like a fan because of the pressure in the steam. The turbine drives a generator that produces the electricty that comes out of the power plant. Both the turbine and boiler have some losses due to friction, but the main loss in the turbine is the energy in the steam leaving the exhaust of the turbine. Because we want to condense this steam back into water so we can re-use it for supplying the boiler, the energy lost from the exhaust of the turbine actually makes its way to the cooling tower before being rejected into the atmosphere. It seems inefficienct to do it this way, but it's the best method we have at the moment.
How does a coal burning power stations works?
coal and limestone goes in the coal and limestone are heated together these heat water and create steam the steam powers turbines that produce power then the energy goes to a substation so that the voltage is 250 and oh yeah im a school kid
