The phrase "actual efficiency" is correct and usable in written English.
It can be used when discussing the real or true level of efficiency achieved in a process, system, or operation.
Example: "The actual efficiency of the new machine exceeded our expectations, leading to significant cost savings."
Alternatives: "true efficiency" or "real efficiency".
Shepard et al 16 have argued for the inclusion of donated items in cost analyses, since hospitals or wards with more donated items may appear more efficient than their peers, even though their actual efficiency may be the same.
The boilers design and actual efficiency is ∼ 90%.
Beyond the first cycles the actual efficiency of spermatogenesis remains always under the theoretical one.
With these likely challenges in mind, one wonders whether there are actual efficiency gains that the competitive environment brings to benefit and formulary design.
In contrast, the conversion of solar energy to electrical energy occurs with an actual efficiency in the range of 10-15%.
Because of various imperfections, such as friction and imperfect thermal insulation, the actual efficiency of power plants seldom exceeds about 60 percent.
Remember, the actual efficiencies are always less than the theoretical efficiencies, so some motor vehicles, for example, exhibit actual efficiencies of only 10%.
Both measured and estimated efficiencies indicate that the actual efficiencies are higher than recommended in literature.
Conservation planning studies often use partial estimates of costs, but the extent to which these result in actual efficiencies has not been demonstrated.
In a world with finite natural resources and large energy demands, it is important to understand not just actual efficiencies, but also limits to efficiency, as the latter identify margins for efficiency improvement.
For validation purposes, the model was applied to a plowing operation, in which the predicted efficiencies for fuel, time and field are compared to the actual efficiencies measured in the field.
