Overall power system efficiency
Input(s)
P: Power Output (hp)
\(Q_{i}\): Total Heat Energy consumed by the Engine (hp)
Output(s)
\(E_{i}\): Total Heat Energy consumed by the Engine (hp)
Formula(s)
\[
E_{i}=\frac{P}{Q_{i}}
\]
Reference(s)
Bourgoyne, A. T., Millheim, K. K., Chenevert, M. E., & Young, F. S. (1986). Applied Drilling Engineering, Page: 7.