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Why does a power station lose a lot of energy during its generating process?
during the rotation of turbine its 65 percent energy is lost as heat
Where is the energy lost with in a power station?
cooling towers
Can you power a wind turbine with a fan to create infinite power?
What would power the fan? What you describe is a "Perpetual Motion" machine, something that needs no energy, or creates its own energy to operate. The reason such things don't work is because of energy loss, usually due to friction or gravity. The fan loses or wastes electrical energy which is turned to heat by friction in its moving parts and by electrical resistance in internal and external wiring. Some energy is also lost in moving the air. The turbine also loses energy from the wind in its own friction before turning it into electricity. When you add up all those losses, the fan requires more energy than the turbine provides. You can't power a sail boat with an attached fan either, but that's a whole other reason, Newton's 3rd Law of motion.
What happens to the lost energy when fossil fuel is used to generate electricity?
Energy is never lost, it is transformed into different types or transferred into different systems. Some of this is useful energy, for example thermal energy used to power a turbine or generator. Some of this thermal energy is not useful, and instead just heats up the fuel container or components of the generator. This energy has still come from the fossil fuel being burned, but it has not been transferred into the system for generating electricity.
What energy conversions take place in a nuclear power station?
Not sure what you mean with "transfer into energy". No new energy is created, and no energy is destroyed. Nuclear fission converts nuclear energy (a type of potential energy) available in the atoms, into other types of energy, like heat.
Why does a power station lose a lot of energy during its generating process?
during the rotation of turbine its 65 percent energy is lost as heat
Where is the energy lost with in a power station?
cooling towers
Why does a power loses a lot of energy during its generating process?
during the rotation of turbine its 65 percent energy is lost as heat
How is gas turbine energy lost?
because gharry gill live in china
When you use electricity from the water will it reduce the amount of water?
No you will not reduce the amount of water, when you use electricity from a 'water driven' power station. You only use the energy of 'falling down' (potential energy is lost).
What energy is lost from nuclear energy?
Some heat is lost in the vapour that rises from the power plant.
Can you power a wind turbine with a fan to create infinite power?
What would power the fan? What you describe is a "Perpetual Motion" machine, something that needs no energy, or creates its own energy to operate. The reason such things don't work is because of energy loss, usually due to friction or gravity. The fan loses or wastes electrical energy which is turned to heat by friction in its moving parts and by electrical resistance in internal and external wiring. Some energy is also lost in moving the air. The turbine also loses energy from the wind in its own friction before turning it into electricity. When you add up all those losses, the fan requires more energy than the turbine provides. You can't power a sail boat with an attached fan either, but that's a whole other reason, Newton's 3rd Law of motion.
What happens to the lost energy when fossil fuel is used to generate electricity?
Energy is never lost, it is transformed into different types or transferred into different systems. Some of this is useful energy, for example thermal energy used to power a turbine or generator. Some of this thermal energy is not useful, and instead just heats up the fuel container or components of the generator. This energy has still come from the fossil fuel being burned, but it has not been transferred into the system for generating electricity.
What energy conversions take place in a nuclear power station?
Not sure what you mean with "transfer into energy". No new energy is created, and no energy is destroyed. Nuclear fission converts nuclear energy (a type of potential energy) available in the atoms, into other types of energy, like heat.
How power station energy is lost?
A generator at a power station might produce electricity with a voltage of 25,000V and a current of 8,000A. Such a large current would cause the cables of the National Grid to get hot because of the heating effect of current. Energy would then be lost as heat to the atmosphere and by the time that the electricity had traveled from the power station through the cables to the towns and factories, much of the original energy would be lost. To reduce the energy loss, a step up transformer at the power station is used to raise the voltage to 400,000V. This is 16 times the input voltage of 25,000V.The Energy Supply Chain Much of the energy content of the available energy sources is wasted by inefficiencies the energy conversion and distribution processes. Considering domestic electric lighting as a typical example, less than 1% of the energy consumed to provide the electricity is ultimately converted into light energy. The other 99% is wasted in the supply chain. Using conventional fossil fuelled generating plant, losses accumulate as follows: 10% of the energy content of the fuel is lost in combustion and only 90% of the calorific content is transferred to the steam. The steam turbine efficiency in converting the energy content of the steam into mechanical energy is limited to about 40%. (Carnot's Efficiency Law) The rotary electrical generator is very efficient by comparison.The conversion efficiency of a large machine can be as high as 98% or 99%. Transmission of the electrical energy over the distribution grid between the power station and the consumer results in a distribution loss of 10% mainly due to the resistance of the electrical cables. Further energy is lost due to the energy conversion efficiency of the end user's appliance. Incandescent lighting is particularly inefficient converting only 2% of the electrical energy into light. The losses are considered in more detail below. Generating Efficiency Electric power plant efficiency η is defined as the ratio between the useful electricity output from the generating unit, in a specific time, and the energy value of the energy source supplied to the unit in the same time period. For electricity generation based on steam turbines 65% of all prime energy is wasted as heat. The maximum theoretical energy efficiency is defined in more detail by the Rankine cycle. For modern practical systems this is about 40% but less for older generating plant. The efficiency falls still further if fuels with lower energy content such as biomass are used to supply the plant. Efficiency Comparisons
If the heat of combustion of polypropylene is 42 MJkg -1 and a power station generates electricity with 25 efficiency how much energy could be generated from 1000 tonnes?
10500000 Mj/kg i guess, if 25 efficiency means that 75% of the power is lost.
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.
