An engine that operates on an Otto cycle has the details as shown in Table 2 below. Table 2 No. of cylinder No. of stroke 4 4 Bore 55mm Stroke 80mm Compression ratio Total displacement volume Initial temperature Initial pressure Heat input 11 2.0 L 50°C 100 kPa 1.8 kJ per cycle per cylinder Brake load Dynamometer radius Engine speed Mechanical efficiency 150 N 0.345 m 3500 RPM 85 % By using variable specific heats of air with temperature, determine: i. the maximum temperature and pressure ii. the net work per cycle per cylinder iii. the thermal efficiency of the cycle iv. the brake power and indicated power v. the brake mean effective pressure and indicated mean effective pressure

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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An engine that operates on an Otto cycle has the details as shown in Table 2 below.
Table 2
No. of cylinder
No. of stroke
4
Bore
55mm
Stroke
Compression ratio
Total displacement volume
Initial temperature
Initial pressure
Heat input
Brake load
80mm
11
2.0 L
50°C
100 kPa
1.8 kJ per cycle per cylinder
150 N
Dynamometer radius
Engine speed
Mechanical efficiency
0.345 m
3500 RPM
85 %
By using variable specific heats of air with temperature, determine:
i.
the maximum temperature and pressure
ii. the net work per cycle per cylinder
iii. the thermal efficiency of the cycle
iv. the brake power and indicated power
v. the brake mean effective pressure and indicated mean effective pressure
Transcribed Image Text:An engine that operates on an Otto cycle has the details as shown in Table 2 below. Table 2 No. of cylinder No. of stroke 4 Bore 55mm Stroke Compression ratio Total displacement volume Initial temperature Initial pressure Heat input Brake load 80mm 11 2.0 L 50°C 100 kPa 1.8 kJ per cycle per cylinder 150 N Dynamometer radius Engine speed Mechanical efficiency 0.345 m 3500 RPM 85 % By using variable specific heats of air with temperature, determine: i. the maximum temperature and pressure ii. the net work per cycle per cylinder iii. the thermal efficiency of the cycle iv. the brake power and indicated power v. the brake mean effective pressure and indicated mean effective pressure
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