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Brake work per cylinder per stroke is defined as the work done on the single piston per one stroke due to the brake power obtained in that cylinder. It represents the useful work output from each cylinder during each power stroke.
The calculator uses the formula:
Where:
Explanation: The formula calculates the actual work output from each cylinder during each power stroke by multiplying the brake mean effective pressure by the displaced volume of the cylinder.
Details: Calculating brake work per cylinder per stroke is crucial for engine performance analysis, efficiency calculations, and comparing the performance of different engine cylinders. It helps in identifying variations in power output between cylinders and optimizing engine performance.
Tips: Enter brake mean effective power in Pascals and displaced volume in cubic meters. Both values must be positive numbers greater than zero for accurate calculation.
Q1: What is the difference between brake work and indicated work?
A: Brake work represents the actual useful work output available at the crankshaft, while indicated work represents the total work developed in the cylinder. The difference accounts for friction and other mechanical losses.
Q2: How does brake work relate to engine power?
A: Total brake work multiplied by the number of power strokes per unit time gives the brake power output of the engine.
Q3: What factors affect brake work per cylinder?
A: Factors include fuel quality, air-fuel ratio, combustion efficiency, mechanical condition, and operating conditions such as load and speed.
Q4: Why calculate work per cylinder per stroke?
A: This calculation helps identify cylinder-to-cylinder variations, diagnose engine problems, and optimize individual cylinder performance.
Q5: How accurate is this calculation?
A: The accuracy depends on the precision of the input values for brake mean effective pressure and displaced volume. For precise measurements, specialized engine testing equipment is recommended.