"We have two different oils and need to determine which one is more energy efficient. What data should we collect? What parameters can help establish energy efficiency?"Energy efficiency must be measured in terms of the reduction of energy consumption. More specifically, it is related to how much energy the machine consumes in order to operate. This principle applies to machines that convert one type of energy like chemical or electric to a mechanical one, such as electric motors and combustion engines. It is also applicable to machines that transmit mechanical energy, like gearboxes. In some …
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