How to calculate brake power in IC engines?

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SUMMARY

The calculation of brake power in internal combustion (IC) engines is defined by the formula hp = [RPM * Torque (ft-lbf)]/5252. This formula allows for the determination of brake horsepower (BHP), which is a critical metric in evaluating engine performance. The discussion also touches on the distinction between brake horsepower and braking forces from engine compression braking, clarifying the focus on practical applications rather than theoretical concepts.

PREREQUISITES
  • Understanding of internal combustion engine mechanics
  • Familiarity with torque measurements in foot-pounds
  • Knowledge of engine RPM (revolutions per minute)
  • Basic grasp of horsepower calculations
NEXT STEPS
  • Research the differences between brake horsepower and indicated horsepower
  • Learn about the factors affecting torque in IC engines
  • Explore engine performance tuning techniques
  • Investigate the impact of RPM on engine efficiency
USEFUL FOR

Automotive engineers, mechanical engineers, students studying engine performance, and anyone involved in the design or analysis of internal combustion engines.

Vijayent
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Can somebody explain how to calculate brake power in IC engines ?
 
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hp = [RPM * Torque (ft-lbf)]/5252
 
Vijayent said:
Can somebody explain how to calculate brake power in IC engines ?
Are you asking about brake horsepower, or about the braking forces from engine compression braking?
 
is this a real engine or theoretical ?
 

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