A 2 liters four stroke engine occupies compression ratio equals 8. The length of the connecting rod is 15.5cm, and the engine is square (BS). The combustion ends at 20 TDC. The engine is connected to a dynamometer which gives a brake output torque reading of 220 N-m at 3600 RPM. At this speed air enters the cylinders at 85kPa and 60°C, and the mechanical efficiency of the engine is 85%. Use gas constant, R: 0.287kJ/kg. K. Calculate the following: 1. brake power 2. indicated power 3. brake me an effective pressure
A 2 liters four stroke engine occupies compression ratio equals 8. The length of the connecting rod is 15.5cm, and the engine is square (BS). The combustion ends at 20 TDC. The engine is connected to a dynamometer which gives a brake output torque reading of 220 N-m at 3600 RPM. At this speed air enters the cylinders at 85kPa and 60°C, and the mechanical efficiency of the engine is 85%. Use gas constant, R: 0.287kJ/kg. K. Calculate the following: 1. brake power 2. indicated power 3. brake me an effective pressure
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:A 2 liters four stroke engine occupies compression ratio equals 8. The length of the
connecting rod is 15.5cm, and the engine is square (B = S). The combustion ends at 20 TDC.
The engine is connected to a dynamometer which gives a brake output torque reading of 220
N-m at 3600 RPM. At this speed air enters the cylinders at 85kPa and 60°C, and the
mechanical efficiency of the engine is 85%. Use gas constant, R: 0.287kJ/kg. K. Calculate
the following:
1. brake power
2. indicated power
3. brake me an effective pressure
4. indicated mean effective pressure
5. friction mean effective pressure
6. power lost to friction
7. brake work per unit mass of gas in the cylinder
8. brake specific power
9. brake output per displacement
10. engine specific volume
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