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Efficiency in terms of energy means accomplishing processes with less energy, ideally the least energy required, with a minimum of waste. Ordinarily, this means that the cost of producing energy is less. However, some methods of efficiently producing and using energy are not the cheapest in terms of the other costs involved: some would cost more to implement, and more to maintain, such as low-resistance shielded transmission lines, which could cost vastly more initially than cheaper ones and cost more to maintain and repair. It would be energy efficient but not cost efficient.
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What compares the energy output of a system with its energy input?
Is it's Energy Efficiency.
What is the coal energy efficiency?
If it is burned - which is the way such fuels are usually used - the energy efficiency is the energy efficiency of a heat engine. The theoretical maximum efficiency is the Carnot efficiency; the real efficiency will usually be considerably less than that.
Which of these was made possible because the assembly line increased efficiency?
A more affordable auto mobile
A machine has an efficiency of 91 percent If the energy supplied to the machine is watts what is the amount being used for work?
If the efficiency is 91%, then work = 0.91 times watts
The percentage of energy from a fuel that is actually used to perform work is its?
That is called efficiency. An efficiency of 1 (or 100%) means that all the energy is converted into useful work.That is called efficiency. An efficiency of 1 (or 100%) means that all the energy is converted into useful work.That is called efficiency. An efficiency of 1 (or 100%) means that all the energy is converted into useful work.That is called efficiency. An efficiency of 1 (or 100%) means that all the energy is converted into useful work.
What is mean of pump efficiency?
The ratio between the energy efficiency of pumps and pump uses the energy that does. Pump efficiency is determined by the manufacturer. In the calculation of pump efficiency is 70%.
How is the length of a food chain related to its efficiency?
The length of a food chain is related to its efficiency by when it is smaller it is more efficient. This is because the energy is not being used up as quickly.
When was British Energy Efficiency Federation created?
British Energy Efficiency Federation was created in 1996.
Why is it that efficiency of a machine is less than 1?
The efficiency is always less than one because some of the energy is always useless for what you want. Most wasted energy eventually turns into heat. therefore the efficiency is like a percentage with 1 being 100% a device can't be 100% efficient as some energy is wasted. To work out the efficiency of a device you need to do the total useful energy produced divided by the total energy that is inputted into the device
Why can't the efficiency of a device or a process be greater than 100?
Efficiency cannot be greater than 100% because efficiency measures energy, and since energy is not made, only transfered (conservation of energy) then we cannot gain energy. Hence the energy out must be at most the energy in. Thus efficiency can be at most 100%
What is the percentage of energy used to do work called?
The term EFFICIENCY is defined as useful work, divided by total energy expenditure.
What is the efficiency of a transformer?
The "all day" efficiency of a transformer is defined as the ratio of energy out/energy in for a given all day cycle.
