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Mechanical Engineering

Brake Thermal Efficiency Calculator

Mechanical Engineering

GATE Verified formulaSI defaultsCompatible units
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Brake Thermal Efficiency

Equation and meaning

\[\eta_{Brake} = \frac{Brake_{Power}}{Energy_{in\_fuel\_per\_second}}\]

Use this equation when the shown variables describe your problem. Keep all inputs in compatible units; the calculator converts them to SI internally before solving.

Variables in this formula

Brake_Power — Brake Power
Enter this value unless it is the selected unknown.
Energy_in_fuel_per_second — Energy In Fuel Per Second
Enter this value unless it is the selected unknown.
eta_Brake — Eta Brake
Enter this value unless it is the selected unknown.
Equation 2

Equation and meaning

\[\eta_{Brake} = \frac{b_{p}}{m_{f} \cdot C_{v}}\]

Use this equation when the shown variables describe your problem. Keep all inputs in compatible units; the calculator converts them to SI internally before solving.

Variables in this formula

b_p — B P
Enter this value unless it is the selected unknown.
C_v — C V
Enter this value unless it is the selected unknown.
eta_Brake — Eta Brake
Enter this value unless it is the selected unknown.
m_f — M F
Enter this value unless it is the selected unknown.

How to use this calculator

  1. Leave one value emptyThe empty field is automatically treated as the unknown.
  2. Enter known values and unitsChoose N, kgf, dyn, SI or another compatible unit when available.
  3. Review the automatic answerThe result appears immediately and is substituted back into the formula to check the residual.
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