This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Heat Release Rate Analysis of a DI Diesel Engine Using Diesel and Seawater Semi-Stable Emulsion
Technical Paper
2002-01-2719
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
The lubricating oil and boiler feed water contamination is a regular feature in maritime operations. The author of this paper has stumbled upon the practical maritime problem of contamination of diesel fuel used for ship propulsion engine with the seawater. In the event of this contamination of diesel oil the author has made up his mind to evaluate the performance of a laboratory based diesel engine with various possible percentages of diesel emulsions with seawater closely keeping track of the engine performance.
The experimentation is conducted on a laboratory based DI 4-stroke Diesel engine (5 hp at 1500 rated RPM with Compression ratio 16.5) varying percentages of Diesel seawater emulsions. Appropriate engine data recorder and software is used to register the pressure variations with respect to crank-angle and heat release rate for various combinations of seawater and diesel emulsions. On scrutinizing the computed values of the graphic data recorded, the diesel emulsion with 10% seawater is found to be encouraging with regard to the pressure development, differential pressure and heat release rate. Specific graphs relating to the above data at the mentioned seawater emulsion are presented (Figs. 4, 5, 6) for comprehensive understanding of the combustion phenomena under various seawater contamination conditions of the diesel oil.
For the calculation of heat release rate and cumulative heat release rate based on the pressure and crank-angle diagram obtained from the recorder, the authors used the mathematical expressions formulated by A Ramesh et. al(12).
It is concluded that the aforesaid seawater-diesel oil emulsion is giving encouraging results at 3/4th rated load of the engine. Improvement in the indicated horse power is observed to be 0. 3 KW (10% of the rated indicated output) over normal running of the engine with pure diesel.
This improvement in the power development is acclaimed to good diesel-air entrainment in the primary combustion stage. This entrainment is assumed to be taking place, because of the presence of the sea water which while burning splutters to create stirring in the combustion chamber. The P-θ signatures of both pure diesel and 10% diesel seawater emulsion confirm the improvement.
In marine diesel engines the purification regularity is to be maintained based on the contamination severity and for this an optimum of 10% seawater is recommended in the diesel propulsion engine from the observations made on the performance. Thus total purification, maintaining the zero seawater contamination may be avoided which reduces the purification cost and time.
Recommended Content
Authors
- I. N. Niranjan Kumar - Engines Data Acquisition Laboratory, Department of Marine Engineering, Andhra University
- S. Chandra Prasad - Engines Data Acquisition Laboratory, Department of Marine Engineering, Andhra University
- B. V. A. Rao - Engines Data Acquisition Laboratory, Department of Marine Engineering, Andhra University
Topic
Citation
Kumar, I., Prasad, S., and Rao, B., "Heat Release Rate Analysis of a DI Diesel Engine Using Diesel and Seawater Semi-Stable Emulsion," SAE Technical Paper 2002-01-2719, 2002, https://doi.org/10.4271/2002-01-2719.Also In
References
- klimstra Jacob “The optimum combustion phasing angle - A convenient Engine tuning Criterion” SAE Paper NO. 852090
- Gatowski J A Balles E N Chun K M Nelson F E Ekdrian J A Hywood J B “Heat Release Analysis of Engine Pressure Data” SAE Paper No. 841359
- Krieger, R B Borman, G L “The computation of apparent Heat Release for Internal Combustion Engine” ASME Paper 66- WA/DGP -4
- Hayes T K Savage L D “Cylinder Pressure Data Acquisition and Heat Release Analysis SAE paper No. 860029
- Karim G A Khan M O “Examination of Effective Rates of Combustion Heat Release in a Dual-Fuel Engine” Journal of Mechanical Engineering Science 10 1 1968
- Amann Charles A “Cylinder Pressure Measurement and its use in Engine Research” SAE Paper No. 852067
- Brown W L “Methods for Evaluating requirements and errors in Cylinder Pressure Measurement” SAE Paper No. 670008
- Lancaster David R Krieger Roger B Lienesch John H “Measurement and Analysis of Engine Pressure Data” SAE Paper No. 750026
- Shipnski J “Relationship between Rates of Injection and Rates of Heat Release In Diesel Engine”
- Gojel Jamil I “Study of Combustion Chamber Arrangements and Heat Release in DI Diesel engines” SAE Paper No. 821034
- DISSCUSSION OF WATER-IN-OIL EMULSION COMBUSTION PETROFERMS PEP99 REPORT
- Ramesh A Nagalingam B Krishnan K V Gopla “A simple method to obtain the heat release rates of a diesel engine using a single analyzer National conference on I C engines and combustion Dec 17-19 1987
- Crookes, R.J. Nazha M.A.A. Janota M.S. Storey T. “Investigation into the Combustion of Water/Diesel Fuel Emulsions” SAE Paper No. 800094
- Dec, J.E. Canaan R.E. Tree D.R. “The Effect of Water-Emulsified Fuel on Diesel Soot Formation” 219th American Chemical Society National Meeting San Francisco, CA March 26-31 2000
- DeVita, A. “Multi-Cylinder D.I. Diesel Engine Tests with Unstabilized Emulsion of Water and Ethanol in Diesel Fuel” SAE Paper No. 890450
- Duncan, D.A. Langer D.A. Marshall J.C. “Emulsion fuels- improving the environment today” SAE Conference presentation Vienna, Austria April 2001
- Ishida, M. Chen Z. “An Analysis of the Added Water Effect of NO Formation in D.I. Diesel Engines” SAE Paper No. 941691
- Khan, N. Gollahalli S.R. “Performance and Emission Characteristics of a Diesel Engine Burning Unstabilized Emulsions of Diesel Fuel with Water, Methanol, and Ethanol” SAE Paper No. 811210
- Langer, D.A Daly D.T. “Low Emission Water Blend Diesel Fuel” Future Fuels and Fuel Additives for Vehicles Emissions Control- 219th American Chemical Society National Meeting San Francisco, CA March 26-31 2000
- Langer, D.A. Petek N.K. “Field and Lab Testing of Emissions Control System Using Water-Blended Fuel” Mining Diesel Emissions Conference Toronto, Canada November 15 2000
- Langer, D.A. Petek N.K. Schiferl E.A. “Maximizing the Effectiveness of Water Blended Fuel in Reducing Emissions by Varying Injection Timing or Using After-Treatment Device” SAE Paper No. 2001-01-0513