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21526 & NM 951 Marine Engineering Simulation & Modelling

11 Nov

 

 

21526 & NM 951

Marine Engineering Simulation & Modelling

 

Course work No-2_GT

 

Semester 1

Ac. Year 2016/17

 

 

 

 

Dr G. Theotokatos

 

 

                                                    

 

 

 

Report due date: 5th December 2016

 

Subject: Modelling of a Marine Diesel engine

 

PART A

Use the provided Matalb/Simulink mean value code to simulate the steady state and transient operation of the MAN Diesel and Turbo 6S46MC-C7 engine. The engine MCR point is 7860 kW at 129 rpm.

 

Task 1: Give a short description of the model characteristics. Discuss the applications where this model type can be used and present the limitations of the model.

 

Task 2: perform simulation runs under steady state conditions for 40%, 50%, 65%, 90% and 100% loads. Compare the main engine operating parameters with the engine manufacturer provided data, which can be found using CEAS-ERD online application. Present tables and graphs.

 

Task 3: Perform transient simulation runs for the following engine load changes:

100%-65%-100%, 50%-100%-40%

Provide enough simulation time in order to obtain steady state conditions in each load change.

Present plots for the variation of the engine main operating parameters and discuss the engine transient response for each case.

 

PART B

Use the provided Matalb/Simulink zero-dimensional code to simulate the steady state operation of one cylinder of the MAN Diesel and Turbo K98MC engine. The engine MCR point is 5,730 kW/cyl at 94 rpm. The model is calibrated at 100% load

Task 4:

Give a short description of the model characteristics and the differences from the MVEM (discussed in Part A). Discuss the applications and the limitations of the model.


 

Task 5:

  1. Perform runs for 100% load and compare the derived engine parameters with the manufacturer’s data.
  2. Calibrate the model for 75% load, perform runs and compare the derived engine parameters with the manufacturer’s data.
  3. Perform parametric runs in the above loads by changing i) injection timing and ii) another engine setting that you will select). Present plots for the variation of the engine main operating parameters and discuss the results for each case.

 

Recommended reading and material

 

Engine project guide (www.mandieselturbo.com)

Computerised Engine Application System-Engine Room Dimensioning (CEAS-ERD) http://mandieselturbo.com/ceas/index.html

http://pim.sagepub.com/content/224/3/193

http://pim.sagepub.com/content/early/2013/09/10/1475090213498715

http://www.sciencedirect.com/science/article/pii/S0306261915006340

http://www.sciencedirect.com/science/article/pii/S0306261914005686

http://www.mdpi.com/1996-1073/8/6/5738

 

 
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Posted by on November 11, 2016 in academic writing

 

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