Part Load Ratio Calculator

Input Parameters

Imperial (°F, BTU, ft)SI (°C, kW, m)

Actual Load (BTU/hr)

Rated Capacity (BTU/hr)

Efficiency %

Part Load Ratio0.667 (67%)

Efficiency93.33 %(93%)

Formula:

PLR = \frac{Q_{actual}}{Q_{rated}}

Calculation:

PLR = \frac{24000}{36000}

Result:

0.667 \text{ }

Formula:

\eta_{PLR} = \eta_{full} \times (1 - 0.2 \times (1 - PLR))

Calculation:

\eta_{PLR} = 100 \times (1 - 0.2 \times (1 - 0.667))

Result:

93.3 \text{ %}