Get a unique, high-quality and non-plagiarized paper from us today at the most affordable price
Email us : premieredtutorials@gmail.com
PREMIERED TUTORIALS

## INTERNAL COMBUSTION ENGINES LABORATORY

You should write a short introduction to this document.                                             [3]

• Preparatory questions to be completed in this document prior to the laboratory, saved and submitted to Turnitin. Please use ONLY the spaces provided and remove the yellow highlighted phrases. Note the allocation of marks.

Q1 Explain the difference between absolute and gauge pressure measurement?  [2]

Q2 Sketch a pressure-volume diagram of the ideal Otto and Diesel, air-standard cycles? [6]

Otto cycle

Diesel Cycle

Q3 Calculate the maximum force acting on an internal combustion engine piston of cylinder bore 75 mm when subjected to a peak combustion cylinder pressure of 122 bar?                                 [2]

Q4 Sketch a plot to show typically how engine power and torque vary with engine speed? Remember to include the engine specification, any test conditions and the source of information                                                                                                                                                                                                       [4]

Q5 Using the engine DATA in APPENDIX 2 ONLY and the nomenclature/formulae provided in APPENDICES 3 and 4, calculate the following:

• Brake Power (kW)                                                                                       [2]

• Volumetric efficiency (%)                                                                           [2]

• Fuel mass flow rate (kg/s)                                                                            [2]

• Power from combustion (kW)                                                                    [2]

• Discussion and Conclusion

What conclusions can you draw from this study? Were the results as anticipated? Provide your own commentary.                                                                                                                                                  [3]

• References

Include a full list of resources that you consulted.  You should look into how to cite references correctly.

• Bibliography

This section is for a list of resources that you consulted but DID NOT CITE in the main text of the report.  Ensure that you do know the differences between REFERENCES and BIBLIOGRAPHY.

[2]

APPENDIX 2.0

ENGINE DATA FOR PREPARATORY WORK

A 4-cylinder, 1.6 litre (1.6 x 10-3 m3), 4 stroke petrol engine

Assume following measured data:

• Atmospheric pressure pa = 760 mmHg
• Room temperature Ta = 25 ºC
• Engine speed N = 2900 rpm
• Engine torque T = 46 Nm
• Fuel flow  = 0.002 litre.s-1 = 2 x 10-6 m3s-1
• Air flow  = 1900 litre.min-1 = 0.031666 m3s-1

Assume following constants:

• Fuel calorific value CV = 45000 kJkg-1
• Fuel density rf  = 748 kgm-3
• Mercury density rHg = 13500 kgm-3
• Gas constant for air R = 287 Jkg-1 K-1
• Specific heat capacity exhaust gas/air Cp,a = 02 kJ kg-1K-1
• Specific heat capacity coolant water Cp,cw = 2 kJ kg-1 K-1
• APPENDIX 3.0
• MEASURED QUANTITIES
• NOTE: the quantities measured in the experiment are in a variety of inconsistent units and should be converted to a standard set of units prior to any analysis.
• Atmospheric pressure
 Height of the mercury column in the barometer mm Density of mercury kgm-3 Acceleration due to gravity ms-2 Absolute pressure of atmosphere Pa
• Temperatures
 Measured Celsius temperature of substance i º C Kelvin Temperature of substance i K for exhaust gas,     i = excooling water,             i = cwair at inlet,       i = a,in

Swept (Displaced) Volume of LABORATORY Engine

 Displaced volume of engine cm3 Displaced volume of engine m3

(3-cylinder Skoda Fabia)

Engine speed

 Measured rotational speed of the engine rpm Rotational speed of the engine rev.s-1 Rotational speed of the engine rad.s-1

Fuel Flow Rate

 Volume flow rate of fuel m3s-1 Density of fuel kgm-3 Mass flow rate of fuel kgs-1

Air Flow Rate

 Measured inlet air volume flow rate l.min-1 Volume flow rate of air into engine m3s-1 Inlet air temperature K Gas constant for air J/kg-1K-1 Inlet air density kgm-3 Air mass flow rate kgs-1

APPENDIX 4.0

DEFINITIONS AND CALCULATED QUANTITIES – You will need Figures 1 and 2 and Appendix 3 for nomenclature

• Volumetric Efficiency (how well does the engine ‘breath’?)

measured flow rate of air / theoretical flow rate of air for the displaced (swept) volume and speed

This is for an engine operating on a 4-stroke cycle.

(where engine speed, N´ in rev.s-1,  in m3s-1, displaced volume, VD in m3)

 B. Indicated Power

(where IMEP is the measured indicated mean effective pressure)

1. Brake Power

 Dynamometer torque Nm Brake power W

(where N* is the engine speed in rads-1)

1. Rate of Energy (power) Loss to Cooling Water

 Cooling water inlet temperature K Cooling water outlet temperature K Specific heat capacity of the cooling water (watch the units!) 4.2 kJkg-1K-1 Rate of energy (power) loss to cooling water W

1. Rate of Energy (power) Loss to Exhaust

 Air inlet temperature K Exhaust outlet temperature K Specific heat capacity of air (watch the units!) 1.02 kJkg-1K-1 Rate of energy (power) loss to exhaust W

1. Fuel Power

 Calorific value of fuel (watch the units!) kJkg-1 Fuel power W

(where CVis the calorific value for Gasoline 95 RON, is the mass flow rate of fuel in kgs-1)

 IMEP Indicated mean effective pressure(average pressure over a cycle in the combustion chamber) Pa

• Breithaupt J., (2003) “Physics 2nd Ed”, Palgrave-MacMillan, ISBN 1403900558
• Serway, A. (2004), “Physics for scientists and engineers”, Thomson Brooks/Cole, ISBN 0534423981
• Holman J.P. (1994), “Experimental methods for engineers”, McGraw-Hill, ISBN 0070296669
• Ray, M., (1988), “Engineering experimentation – Ideas, techniques and Presentation”, McGraw-Hill, ISBN 0070841845
• Wheeler A., Ganji A., (2004) “Introduction to engineering experimentation”, Pearson Education, ISBN 0131246852
• The Testing of Internal Combustion Engines by Arthur Bates; Lucas, G. G.; Young, Sydney John Greene

ISBN 13: 9780340053683 ISBN 10: 0340053682 Hardcover London: English Universities P., 1969.

• Applied Thermodynamics for Engineering Technologists, 5th Edition D. Eastop, A. Mcconkey Mar 1993, Paperback, 736 pages ISBN13: 9780582091931 ISBN10: 0582091934.
• Introduction to Internal Combustion Engines by Richard Stone, 3rd Ed. (659 pages) Macmillan 1999
• Internal Combustion Engines, Applied Thermosciences, C.R. Ferguson and A.T. Kirkpatrick, 2nd edition, Wiley, 2001.
• Internal Combustion Engine Fundamentals, J.B. Heywood, McGraw-Hill, 1988.
• Specifications for Reciprocating internal combustion Engine’s Performance- BSI

Place your order now for a similar paper and have exceptional work written by our team of experts to guarantee you A Results

Why Choose US

6+ years experience on custom writing
80% Return Client
Urgent 2 Hrs Delivery
Unlimited Free Revisions

#### How to Place an Order

Send the assignment details such as the instructions, due date/deadline, number of pages and college level to the customer support agent online on live chat,  fill in the assignment details at place an order or send the information to our email address premieredtutorials@gmail.com and a customer support agent will respond to you immediately.

Once you place your order, we choose for you the best and competent writer for your assignment based on each writer’s competence in handling a subject.

When the homework is completed, we have a quality assurance team that proofreads the assignment to ensure it meets the required rubric instructions from your professor.

After thorough review of your assignment, we send the paper to the client. In case you need any changes at this point, you can let us know so that we can handle it for you at no extra charge.

#### Why we should write your Paper

1. Money Return guarantee
2. 0% Plagiarism Rate
3. Guaranteed Privacy
4. Written from scratch by highly qualified writers
5. Communication at Any Time (24/7)
6. Flexible Pricing and Great Discount Programs
7. Timely Deliveries
8. Free Amendments
##### Looking for a similar assignment and in urgent need for help? Place your order and have excellent work written by our team of professionals to ensure you acquire the best grades.

We are here to assist you.