Analysis of energy flows in engine coolant, structure and lubricant during warm-up

Richard D Burke; Christian J Brace; Andrew Lewis; Allan Cox; I Pegg

Analysis of energy flows in engine coolant, structure and lubricant during warm-up

Richard D Burke, Christian J Brace, Andrew Lewis, Allan Cox, I Pegg

Department of Mechanical Engineering

Research output: Contribution to conference › Paper

7 Citations (SciVal)

159 Downloads (Pure)

Abstract

Improving engine warm up time is of great interest because cold start engines suffer from increased fuel consumption. This study comprises of two phases: the first looking at global benefits from a novel engine cooling system incorporating coolant flow control valves and dual EGR setup. The new cooling system showed promising signs of influencing energy flows during warm up, however only limited analysis was possible. The second phase used an instrumented engine to show new ways of quantifying performance enhancements through combustion chamber heat transfer, local bearing oil film temperatures and bearing heat transfer. 1 dimensional heat transfer analysis demonstrated the significant energy required to warm up the engine structure and 25-50kJ heat loss per main crank shaft bearing.

Original language	English
Pages	167-176
Number of pages	10
Publication status	Published - 31 Dec 2011
Event	Vehicle Thermal Management Systems Conference and Exhibition, VTMS 10 - Warwickshire, UK United Kingdom Duration: 15 May 2011 → 19 May 2011

Conference

Conference	Vehicle Thermal Management Systems Conference and Exhibition, VTMS 10
Country/Territory	UK United Kingdom
City	Warwickshire
Period	15/05/11 → 19/05/11

Cite this

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title = "Analysis of energy flows in engine coolant, structure and lubricant during warm-up",

abstract = "Improving engine warm up time is of great interest because cold start engines suffer from increased fuel consumption. This study comprises of two phases: the first looking at global benefits from a novel engine cooling system incorporating coolant flow control valves and dual EGR setup. The new cooling system showed promising signs of influencing energy flows during warm up, however only limited analysis was possible. The second phase used an instrumented engine to show new ways of quantifying performance enhancements through combustion chamber heat transfer, local bearing oil film temperatures and bearing heat transfer. 1 dimensional heat transfer analysis demonstrated the significant energy required to warm up the engine structure and 25-50kJ heat loss per main crank shaft bearing.",

author = "Burke, {Richard D} and Brace, {Christian J} and Andrew Lewis and Allan Cox and I Pegg",

year = "2011",

month = dec,

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language = "English",

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note = "Vehicle Thermal Management Systems Conference and Exhibition, VTMS 10 ; Conference date: 15-05-2011 Through 19-05-2011",

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TY - CONF

T1 - Analysis of energy flows in engine coolant, structure and lubricant during warm-up

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AU - Brace, Christian J

AU - Lewis, Andrew

AU - Cox, Allan

AU - Pegg, I

PY - 2011/12/31

Y1 - 2011/12/31

N2 - Improving engine warm up time is of great interest because cold start engines suffer from increased fuel consumption. This study comprises of two phases: the first looking at global benefits from a novel engine cooling system incorporating coolant flow control valves and dual EGR setup. The new cooling system showed promising signs of influencing energy flows during warm up, however only limited analysis was possible. The second phase used an instrumented engine to show new ways of quantifying performance enhancements through combustion chamber heat transfer, local bearing oil film temperatures and bearing heat transfer. 1 dimensional heat transfer analysis demonstrated the significant energy required to warm up the engine structure and 25-50kJ heat loss per main crank shaft bearing.

AB - Improving engine warm up time is of great interest because cold start engines suffer from increased fuel consumption. This study comprises of two phases: the first looking at global benefits from a novel engine cooling system incorporating coolant flow control valves and dual EGR setup. The new cooling system showed promising signs of influencing energy flows during warm up, however only limited analysis was possible. The second phase used an instrumented engine to show new ways of quantifying performance enhancements through combustion chamber heat transfer, local bearing oil film temperatures and bearing heat transfer. 1 dimensional heat transfer analysis demonstrated the significant energy required to warm up the engine structure and 25-50kJ heat loss per main crank shaft bearing.

UR - http://www.imeche.org/

M3 - Paper

SP - 167

EP - 176

T2 - Vehicle Thermal Management Systems Conference and Exhibition, VTMS 10

Y2 - 15 May 2011 through 19 May 2011

ER -

Analysis of energy flows in engine coolant, structure and lubricant during warm-up

Abstract

Conference

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