Increased Productivity - Use of Specific Dissipation to Evaluate Vehicle Engine Cooling

This paper presents an experimental comparison between two factors used for evaluating engine cooling in motor cars, Air-to-Boil (ATB) and Specific Dissipation (SD). It is shown that Specific Dissipation can increase the experimental productivity for evaluating cooling system by giving more reliable results than Air-to-Boil.

Results from road tests and experiments conducted in three different wind tunnels are presented. All experimental results indicate that Specific Dissipation gives more repeatable results and can be used in both stable and slowly-varying test conditions.