Performances and Opportunities of an Engine Cooling System with a Double Circuit at Two Temperature Levels University of L'Aquila

Format:

Conference/Event

Author/Creator:

Cipollone, Cipollone, author.

Contributor:

Di Battista, Davide

Conference Name:

SAE 2012 World Congress & Exhibition (2012-04-24 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2012

Summary:

In the last years, the design of internal combustion engines(ICE) has evolved significantly, mainly because of the changingdemand of mobility, the need to limit the pollution produced byvehicles, and recently, the opportunity to reduce emissions ofclimate-altering gases.Among the more interesting technologies, those connected to arevision of the engine cooling, as well as, in general, of thethermal needs on board vehicle (oil cooling, intercooling of theturbocharging air, EGR cooling, cabin conditioning...) appear verypromising, also because characterized by a lower cost increase perunit of CO₂ saved.In this paper, the Authors present a mathematical model of aninternal combustion engine physically consistent that appraises theperformances of conventional and unconventional engine coolingsystems and the integration of vehicle thermal needs. Inparticular, the Authors studied a double cooling circuit, at twodifferent temperature levels, that allows several improvements interms of engine warm up, fuel saving and air boosting.The model has been applied to an existing engine whoseexperimental characterization was done concerning the heatrejection toward the cooling fluid. On this engine a double circuitat two temperature levels has been proposed, according to a layoutwhich redistributes in an optimal way the engine and vehiclethermal requirements

Notes:

Vendor supplied data

Publisher Number:

2012-01-0638

Access Restriction:

Restricted for use by site license