Thermodynamics Lab Report
Jess-93
enginelabdata...pdf
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Table 1: Results Engine: Diesel Petrol Noise (dB):
104 dB (2360 rpm, near muffler) 100 dB (2390 rpm, near muffler)
Pump: A B C A B C Flow rate (kg/s)*: (water)
Pump Head (m)*:
Pump Efficiency*:
RPM*:
Power Required from motor (kW)*:
Torque Required from motor (N.m)*:
Can engine deliver required power?
Thermal efficiency of engine (%)
Time needed to pump 25000 L of water
No. of litres of fuel required to pump 25000 L of water (L)
Cost of fuel required to pump 25000 L ($)
Increase in potential energy of 25000 L of water (J)
Energy used by motor to fill the tank (J)
Overall thermal efficiency of the system
Air/Fuel Ratio:
Mass of CO2 produced by pumping 25000 L of water (kg):
Recommended pump/motor combination:
*These correspond to the duty points and should be determined before doing the lab.
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Please include the following tables as an appendix in your report with your engine test results for each engine.
Date of test: 17/08/14
Time of test: 11:00 am
Test bed serial No. TQ111869-003
Engine serial No. TQ111979-01
Engine type Diesel
Engine size (Litres) 0.232
No. of strokes 4
Fuel type Diesel
Fuel density (kg/m 3 )
Fuel calorific value (kJ/kg)
Ambient air pressure 1011 mbar
Airbox orifice dimension (m)
3
2503ENG Thermodynamics – Lab. Assignment
Air and Exhaust
Airbox
differential pressure
(Pa)
-350
-340
-325
-305
-290
-275
Exhaust gas temperature
(°C)
146
167
172
199
224
240
Ambient air temperature
(°C)
22
22.2
22.2
22.3
22.5
22.9
Fuel
Fuel drain time
(s)
85
79
70
59
53
44
Fuel
volume
(mL)
8
8
8
8
8
8
Diesel Engine
Engine output power
(W)
580
690
920
1290
1510
1910
Engine torque
(N.m)
2.4
2.7
3.7
5.2
6.1
8.0
Engine speed
(rpm)
2320
2405
2360
2360
2370
2300
Meas. No.
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2
3
4
5
6
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Date of test: 18/08/2014
Time of test: 10:20 am
Test bed serial No. TQ111869-004
Engine serial No. TQ117203-001
Engine type Petrol
Engine size (Litres) 0.172
No. of strokes 4
Fuel type Petrol
Fuel density (kg/m 3 )
Fuel calorific value (kJ/kg)
Ambient air pressure 1011 mbar
Airbox orifice dimension (m)
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2503ENG Thermodynamics – Lab. Assignment
Air and Exhaust
Airbox
differential pressure
(Pa)
-10
-22
-30
-45
-52
-90
Exhaust gas temperature
(°C)
265
324
356
394
405
471
Ambient air temperature
(°C)
23.4
24
24.3
24.5
24.7
23.3
Fuel
Fuel drain time
(s)
68
62
55
52
49
36
Fuel
volume
(mL)
8
8
8
8
8
8
Petrol Engine
Engine output power
(W)
598
785
920
1200
1450
2050
Engine torque
(N.m)
2.3
3.2
4.2
4.9
5.9
9.0
Engine speed
(rpm)
2390
2368
2380
2340
2340
2250
Meas. No.
1
2
3
4
5
6
