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The Use of a Water/Lube Oil Heat Exchanger and Enhanced Cooling Water Heating to Increase Water and Lube Oil Heating Rates in Passenger Cars for Reduced Fuel Consumption and CO2 Emissions During Cold Start.
Technical Paper
2007-01-2067
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Lubricating oil takes all of the NEDC test cycle time to reach 90°C. Hence, this gives high friction losses throughout the test cycle, which leads to a significant increase in the fuel consumption. In real world driving, particularly in congested traffic, it is shown that lube oil warm-up is even slower than in the NEDC. Euro 1, 2 and 4 Ford Mondeo water and oil warm up rates in real world urban driving were determined and shown to be comparable with the results of Kunze et al. (2) for a BMW on the NEDC. This paper explores the use of forced convective heat exchange between the cooling water and the lube oil during the warm-up period. A technique of a step warm-up of the engine at 32 Nm at 2000 rpm (35% of peak power) was used and the engine lube oil and water temperature monitored. It was shown that the heat exchanger results in an increase in lube oil temperature by 4°C, which increased to 10°C if enhanced heat transfer to the water was used from an exhaust port heat exchanger. The impact of sfc was 8 and 14% respectively, during the first 6 minutes from cold start.
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Authors
- Gordon E. Andrews - Energy and Resources Research Institute School of Process, Environment and Materials Engineering The University of Leeds, Leeds, LS2 9JT, UK
- Ali. M. Ounzain - Energy and Resources Research Institute School of Process, Environment and Materials Engineering The University of Leeds, Leeds, LS2 9JT, UK
- Hu Li - Energy and Resources Research Institute School of Process, Environment and Materials Engineering The University of Leeds, Leeds, LS2 9JT, UK
- Margaret Bell - Institute for Transport Studies The University of Leeds, Leeds, LS2 9JT
- James Tate - Institute for Transport Studies The University of Leeds, Leeds, LS2 9JT
- Karl Ropkins - Institute for Transport Studies The University of Leeds, Leeds, LS2 9JT
Topic
Citation
Andrews, G., Ounzain, A., Li, H., Bell, M. et al., "The Use of a Water/Lube Oil Heat Exchanger and Enhanced Cooling Water Heating to Increase Water and Lube Oil Heating Rates in Passenger Cars for Reduced Fuel Consumption and CO2 Emissions During Cold Start.," SAE Technical Paper 2007-01-2067, 2007, https://doi.org/10.4271/2007-01-2067.Also In
References
- Bihr, B. Low Carbon Powertrains, Trends and Technologies IMechE Conference ‘Cost Effective Low Carbon Powertrains for Future Vehicles’ 607 Nov. 2006
- Kunze, K. Wolff, S. Lade, I. Tonhauser, J. A Systematic Analysis of CO 2 Reduction by an Optimized Heat Supply During Vehicle Warm-Up SAE Paper 2006-01-1450 2006
- Andre, M. Experimental study on the actual uses of cars SAE Paper 890874 1989
- Andrews, G.E. Harris, J.R. Ounzain, A. SI Engine Warm-Up: Water and Lubricating Oil Temperature Influences SAE Paper 892103 SAE SP-799 Passenger Car Motor Oils 1989
- Andrews, G.E. Harris, J.R. Ounzain, A. Experimental Methods for Investigating the Transient Heating and Emissions of an SI Engine During the Warm-Up Period. In: ‘Experimental Methods in Engine Research and Development’ IMechE 101 108 1988
- Andrews, G.E. Harris, J.R. Ounzain, A. Transient Heating and Emissions of an SI Engine During the Warm-Up Period SAE Paper 880264 1988
- Andrews, G.E. Harris, J.R. Ounzain, A. The Role of Cooling Water and Lubricating Oil Temperatures on Transient Emissions During SI Engine Warm-Up International EAEC Conference on New Developments in Powertrain and Chassis Engineering Strasbourg 89 50 1989
- Ghazikhani, M. Andrews, G.E. Ounzain, A. Frictional Power Variation During the Warm-Up Period of a Spark Ignition Engine IMech E Conference ‘Experimental Methods in Engine Research’ 197 211
- Andrews, G.E. Harris, J.R. Ounzain, A. The Influence of External Heat Losses on the Transient SFC and Emissions During the Warm-up Period of an SI Engine IMechE Seminar on ‘Engine Transient Performance’ MEP 65 73 1990
- Andrews, G.E. Zhu, G. Li, H. Simpson, A. Wylie, J.A. Bell, M. Tate, J. The Effect of Ambient Temperature on Cold Start Urban Traffic Emissions for a Real World SI Car SAE Paper 2004-01-2903 2004
- Andrews, G.E. Li, H. Wylie, J.A. Zhu, G. Bell, M. Tate, J. Influence of Ambient Temperature on Cold-start Emissions for a Euro 1 SI Car Using In-vehicle Emissions Measurement in an Urban Traffic Jam Test Cycle SAE Paper 2005-01-1617 ‘General Emissions 2005’ SAE SP-1944 2005
- Li, H. Andrews, G.E. Zhu, G. Daham, B. Bell, M. Tate, J. Ropkins, K. Impact of Ambient Temperature on Exhaust Thermal Characteristics during Cold Start for Real World SI Car Urban Driving Tests SAE Paper 2005-01-3896 2005
- Schwarz, Ch. Schunemann, E. Durst, B. Fischer, J. Witt, A. Potential of the Spray-Guided BMW DI Combustion System SAE Paper 2006-01-1265 SP2016 ‘SI Combustion and Direct Injection SI Engine Technology’ 373 379 2006