Whatever is turning the shaft (turbine, motor, hand crank, etc.).
gas
The type of energy you want to transfer is known as the input or source of energy, which is typically converted into a different form of energy for the desired purpose. For example, electrical energy may be input to a motor to produce mechanical energy.
Someone pushing against a lever.
Whenever we do any work some energy will be converted into any form other than the actual input energy for the work to be done so it is impossible to have the output greater than work input example : some energy will be converted to heat energy due to friction
The ratio of output to input of energy or power is known as efficiency. It is typically expressed as a percentage, calculated by dividing the useful output energy or power by the total input energy or power and multiplying by 100. For example, if a machine consumes 100 units of energy and produces 80 units of useful energy, its efficiency would be 80%. High efficiency indicates that a system converts a greater proportion of input energy into useful output.
The total energy input can be calculated using the formula: Energy input = Useful energy output / Efficiency Substitute the given values into the formula: Energy input = 20 / 0.25 Energy input = 80 units.
Energy release is to condensation as energy input is to vaporization. Vaporization requires energy input to happen, while condensation releases energy.
An example of an energy balance equation for a steam turbine can be expressed as: Input energy (steam flow rate x enthalpy of steam) Output energy (mechanical work done by the turbine heat losses)
In any energy system, the power input is typically larger than the power output due to inefficiencies such as energy loss through heat, friction, or other forms of dissipation. For example, in electrical devices, the input power is the total energy supplied, while the output power is the useful energy converted into work or light, with some energy lost in the process. Therefore, the power output is generally less than the power input.
Yes, all ovens/cookers require some energy (fuel) input in order to get them to heat up. For example electric hobs require an electrical imput, gas cookers require gas as their fuel (energy) etc... Even solar cookers have a solar energy input.
Efficiency compares the useful energy output of a system to the total energy input. It provides a measure of how well a system converts input energy into useful output energy.
Bassam Siraj