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Engineering economics

Reference data et engineering information about engineering economics pour automotive et transport applications.

engineeringeconomics

Overview

Engineering reference data for Engineering Economics in automotive transport.

Key Formulas

Braking Distance

d=v22μgd = \frac{v^2}{2\mu g}

Distance to stop from velocity v.

Fuel Consumption

FC=distancefuel volumeFC = \frac{\text{distance}}{\text{fuel volume}}

Distance per unit fuel.

Horsepower

HP=τn5252HP = \frac{\tau \cdot n}{5252}

Torque × RPM / 5252.

Drag Force

Fd=12ρv2CdAF_d = \frac{1}{2} \rho v^2 C_d A

Aerodynamic drag on vehicle.

Variables

SymbolDescriptionUnit
ddBraking distancem
vvVelocitym/s
μ\muFriction coefficient
τ\tauTorqueN·m
CdC_dDrag coefficient

References