Method for determining power consumption of engine cooling fan-drive systems. SAE standard

Technical Report · Thu Sep 01 04:00:00 EDT 1994

OSTI ID:636024

The technique outlined in this SAE recommended practice was developed as part of an overall program for determining and evaluating fuel consumption of heavy-duty trucks and buses. It is recommended that the specific operating conditions be carefully reviewed on the basis of actual installation data. It includes systems that are affected by all heat exchangers that are cooled by the fan-drive system. These may include radiators, condensers, charge air coolers, or oil coolers. Because of the variation in size, shape, configuration, and mountings available in cooling fans and fan-drive systems, specific test devices have not been included. Using known power/speed relationships for a given fan, this procedure can be used to calculate the fan-drive system`s power consumption for engine cooling systems using fixed-ratio, speed modulating, and on-off fan drives. The purpose of this document is to provide a recommended method for determining and comparing the power consumption of fan drives over a variety of operating conditions.

• Research Organization: Society of Automotive Engineers, Inc., Warrendale, PA (United States)
• OSTI ID: 636024
• Report Number(s): SAE-J--1342/XAB
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
33 ADVANCED PROPULSION SYSTEMS
BLOWERS
BUSES
COOLING SYSTEMS
ENGINES
FUEL CONSUMPTION
PERFORMANCE TESTING
STANDARDS
TRUCKS