Does a car consume fuel when only the fan is on without the air conditioning?

1 Answers
LeRuby
07/30/25 12:57am
Analyzing the working principle, even when only the fan is turned on without the air conditioning, the car still consumes fuel. The fan is one of the components that consume electricity, and when the fan is activated, the engine speed increases. It can be observed that the engine RPM rises momentarily when the fan is turned on. Below is an extended explanation: Introduction to the aerodynamic performance of the fan: The aerodynamic performance of a fan typically refers to the relationship between the fan's flow rate and static pressure, as well as the flow rate and power. The fan's flow rate is equivalent to its intake or exhaust volume per unit time, which is the volumetric flow rate of gas passing through the duct per unit time in performance tests. The static pressure of the fan characterizes the gas's ability to overcome various resistances in the flow path.
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