LIFETIME Final Presentation - Laboratory of Marine Engineering

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Effect of control schemes on performance and emissions Findings of the Intelligent Engine measurements • For the RPM variation it was shown that the same tendency is observed for all loads, with a clear trend that higher RPM results in a lower NOx level. • For the Pmax variation and the Pcomp/Pscav variation the relation is close to linear, but with the gradient depending of the engine load. • Blow back variation did not have a significant influence on NOx emission, but remains an important factor with regard to scavenge efficiency and cleanness of the scavenge space. • The hydraulic pressure influenced both the fuel injection pressure and the opening of the exhaust valve. Athens, October 8, 2003 Final Presentation
NOx-BOX operation evaluation Analysis of the operation and evaluation of the performance of NOx- BOX • NOx-BOX software sensor is capable of accurately predicting the engine operational parameters, provided efficient calibration is done prior to onboard installation. • Power calculation accuracy is a valid criterion toward accurate NOx emissions prediction. • NOx emissions prediction is accurate in cases where suitable data of the engine performance, as well as measured NOx emissions have been used for the initial calibration of the NOx-BOX software sensor Athens, October 8, 2003 Final Presentation
Page 1 and 2:
Introduction and background • Dur
Page 3 and 4:
LOW IN FUEL AND EMISSIONS TWO-STROK
Page 5 and 6:
Objectives and Methodology LIFETIME
Page 7 and 8:
Page 9 and 10:
Page 11 and 12:
Vessels for shipboard measurement c
Page 13 and 14:
Research Centre and Intelligent Eng
Page 15 and 16:
Turbocharger test centre Exterior v
Page 17 and 18:
Intelligent Engine Performance & Em
Page 19 and 20:
Turbine nozzle ring contamination N
Page 21 and 22:
Compressor Athens, October 8, 2003
Page 23 and 24:
“Shanghai Express” Propulsion P
Page 25 and 26:
Comparison of independent power mea
Page 27 and 28:
“Shanghai Express” Exhaust gas
Page 29 and 30:
“Antwerpen Express” Propulsion
Page 31 and 32:
Measuring data acquisition system Z
Page 33 and 34:
Analysis of ageing effect The agein
Page 35 and 36: Analysis of ageing effect - Data Su
Page 37 and 38: Analysis of ageing effect - Conclus
Page 39 and 40: Multi-zone Combustion Model NOx MAP
Page 41 and 42: Engine Performance Modelling Compar
Page 43 and 44: Simulations - 7K98MC engine PARAMET
Page 45 and 46: Simulations - 7K98MC engine Creatio
Page 47 and 48: Possible Types of Correlation • S
Page 49 and 50: LIFETIME Control System Mathematica
Page 51 and 52: LIFETIME observer system (NOx-Box)
Page 53 and 54: LIFETIME observer system (NOx-Box)
Page 55 and 56: Validation of control schemes Devel
Page 57 and 58: Testbed implementation of the contr
Page 59 and 60: Prototype Control Systems Design an
Page 61 and 62: Brake Power per cylinder (kW) Ultra
Page 63 and 64: Conventional Engine Off-line NOx-BO
Page 65 and 66: Prototype Control Systems Initial i
Page 67 and 68: Intelligent Engine Engine Running M
Page 69 and 70: Prototype Control Systems Recalibra
Page 71 and 72: Conventional Engine Off-line NOx_BO
Page 73 and 74: Engine Running Mode software Intell
Page 75 and 76: Ultra-Large Bore Engine On-line NOx
Page 77 and 78: GL Measurements Ultra-Large Bore En
Page 83 and 84: Conventional Engine Off-line NOx-BO
Page 85: Analysis of Results • Effect of c
Page 89 and 90: Model-based vs. correlational metho
Page 91 and 92: 60 Model-based vs. correlational me
Page 93 and 94: “Antwerpen Express” running wit
Page 95 and 96: Future engine control systems • D
Page 97 and 98: Future engine control systems • I
Page 99 and 100: Future engine control systems • T
Page 101 and 102: Work Progress CONCLUSIONS • Condu
Page 103: The End Athens, October 8, 2003 Fin
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LIFETIME Final Presentation - Laboratory of Marine Engineering

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