Description
Report Requirements
1. Please use SI Units
2. Justify your selection to the SOC. Include graphs comparing results of relevant parameters to justify your choice of the optimal SOC. Please note that there is no “exact” solution to this problem, there will be some leniency to the SOC (+/-2°).
3. Include graphs comparing the results between the varying engine speeds. (ie. Engine speed Vs. Torque, Engine Speed vs. Power, ect.) Look at the class resources to find examples of relevant graphs to include in the report.
4. Include results with analysis to document the effects of changing combustion duration
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Explanation & Answer
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RICARDO WAVE ENGINE MODELLING PROJECT
Name
Institutional Affiliation
Professor’s Name
Date
Contents
INTRODUCTION .......................................................................................................................... 3
Four-Stroke Engine. ................................................................................................................ 3
Background ..................................................................................................................................... 4
DESIGN OF THE MODEL AND DATA ...................................................................................... 6
Design ......................................................................................................................................... 6
Engine Parameters .................................................................................................................. 6
Procedure Instructions ................................................................................................................ 6
Selecting the Ideal SOC .......................................................................................................... 7
ANALYSIS ..................................................................................................................................... 8
Justification for the SOC Choice ................................................................................................ 8
Performance ................................................................................................................................ 9
Varying the Combustion duration at a constant speed ..................................................... 9
Question: For the varying combustion duration explain the performance gets worse at
extremely short durations. Is this a realistic scenario? ................................................... 10
Question: .............................................................................................................................. 10
To determine the best performance has been reached under a constant combustion rate, the test
for varying speeds was conducted. As later discussed at a given engine speed and SOC the
performance becomes constant before it starts to drop. ............................................................ 10
Varying the Speed ............................................................................................................... 11
Question: What are some limitations of the 1D model? What would be the limitations
of using a 1D model like this when comparing to real engine results? .......................... 12
CONCLUSION .....................................................................................................................