Efficiency
Efficiency, abbreviated as \(\eta\) (Greek symbol eta), a dimensionless number, is expressed in percentage and always less than 100%.
Efficiency with Energy formula |
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\(\large{ \eta = \frac{E_o}{E_i} \;100 }\) | ||
Symbol | English | Metric |
\(\large{ \eta }\) (Greek symbol eta) = efficiency | \(\large{dimensionless}\) | |
\(\large{ E_i }\) = input energy | \(\large{ft-lbf}\) | \(\large{J}\) |
\(\large{ E_o }\) = output energy | \(\large{ft-lbf}\) | \(\large{J}\) |
Efficiency with work formula |
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\(\large{ \eta = \frac{W_o}{W_i}\; 100 }\) | ||
Symbol | English | Metric |
\(\large{ \eta }\) (Greek symbol eta) = efficiency | \(\large{dimensionless}\) | |
\(\large{ W_i }\) = input work | \(\large{ft-lbf}\) | \(\large{J}\) |
\(\large{ W_o }\) = output work | \(\large{ft-lbf}\) | \(\large{J}\) |