Browse Publications Technical Papers 2019-26-0079
2019-01-09

Electrical Operated Fan for Cooling System on Agricultural Tractors 2019-26-0079

Internal combustion engines involve various parasitic losses on vehicle level like that of Cooling Fans, Hydraulic pumps, Air compressors and Alternators. Because of which the available output power for applications is limited.
The replacement of an existing mechanical Fan, which is driven by the engine crankshaft, by an electrically operated Fan reduces the engine frictional losses (Fan drag) resulting in a power gain. Fuel saved because of nil fan drag is available as a useful power for application.
Mechanical fans operate on a fixed drive ratio with engine speeds and is directly proportional. Electrical fans can operate on constant speeds and is independent of engine speeds. There is a benefit of higher air-flow on max torque speeds which is not possible with a mechanical driven fan. There is no compromise in engine cooling performance, since the fan can now be placed suitably in the best airflow zone by computational fluid dynamics (CFD) analysis.
Unlike Mechanical fans which are unidirectional, electrical fans can operate both clockwise/counter-clockwise with the reverse polarity in the electrical circuit. This feature acts as a blower to keep the heat exchanger cores free from clogging during husk applications in field, which cause airflow restriction on a conventional puller type fans.
There was 3% improvement in PTO power and torque with the configuration, complimenting good fuel economy improvement on overall tractor applications.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.

Due to current capacity constraints, printed versions of our publications - including standards, technical papers, EDGE Reports, scholarly journal articles, books, and paint chips - may experience shipping delays of up to four to six weeks. We apologize for any inconvenience.
We also recommend:
TECHNICAL PAPER

Automotive cooling system thermal management optimization

2018-36-0243

View Details

TECHNICAL PAPER

Cooling System Optimization for a 3 Cylinder Naturally Aspirated Inline Diesel Engine

2014-01-2338

View Details

TECHNICAL PAPER

Development of High Performance Radiators by Fin Optimization

2014-01-0635

View Details

X