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Fans are usually rated in cubic feet per minute, so divide the volume per minute in cubic feet by the area of the fan in square feet, and the answer is the speed in feet per minute.

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Is it more energy-efficient to have a fan blowing in or out of a window?

It is generally more energy-efficient to have a fan blowing out of a window. This helps to expel hot air from the room, allowing cooler air to come in naturally.


How can I effectively use a fan in front of a window to improve air circulation in my room?

To effectively use a fan in front of a window to improve air circulation in your room, place the fan facing outward to push hot air out of the room. This creates a cross breeze with the window open, allowing fresh air to come in. Adjust the fan speed and direction as needed for optimal airflow.


When a gas furnace ignites and is under full-fire why does the fan not come on immediately?

The fan delay is designed to allow the heat exchanger to warm up before the fan blows air into the ducts. This helps increase efficiency and prevents cool air from being circulated initially. Once the heat exchanger reaches the set temperature, the fan will turn on to distribute warm air throughout the home.


why fan air come down?

Fans push air downwards due to the design and rotation of the fan blades. As the blades spin, they create a pressure difference that pushes air downwards towards the ground. This downward airflow helps to create circulation and can provide a cooling effect in a room.


A fan spins in the air and air is pushed forward What is the object and reaction force?

The object is the fan and the reaction force is the air being pushed forward by the fan blades as they spin.

Related Questions

Where does the air of a fan come from?

the back of the fan


Is a standing fan open loop or close loop control system?

I assume a "standing fan" is just a fan that moves air. It might have a few settings such as oscillate or slow, medium, fast for the fan speed. This is an open loop control system. There is nothing telling a controller that the fan is oscillating or not, nor is there a mechanism that is telling the fan that it is on slow, medium or high. If the fan were to have a temperature sensor on it that would apply power if the temp went above the preset limit, this could be described as a closed loop system.


What way should a fan spin?

Generally, the blades of a fan spin in a counter-clockwise rotation (when facing the fan), so that the air is pushed downward if its a ceiling fan, or toward you if its a standing fan.


Does a common electric fan pulls the air from outside the room or it simply circulates the air inside the room?

A common free standing or ceiling mounted fan simply circulates air round the room.


Why wont 1998 Honda civic ex cooling fan come on when car is on?

AnswerThe cooling fan is not on all the time. When driving above 35 mph, ram air takes effect and the air going through the radiator is stronger than the air can be pulled by the fan.When first starting the car, it may take several minutes for the fan to come on because the engine is "warming up".The cooling fan is controlled by a thermostat. It is supposed to come on at a certain temperature. This often when the car is standing still in heavy traffic on a hot day. This causes the engine to get hotter than normal and the fan will switch on.


Why does no air come out of the vents?

heater fan broken.


Why does air come down when a fan rotates?

The blades of the fan have a small angle tilt, so it can push down air.


Why are the blades of an electric fan usually coated with dust although the fan rotates fast?

the fan is pulling air through itthe air contains dustthe moving fan blades collide with the dust in the moving airthe dust and the fan blade stick together as a result of this collisionThese events will always happen no matter how fast or slow the fan turns.


What are the benefits of using a standing air conditioner fan in a room?

Using a standing air conditioner fan in a room can help to circulate air, cool the space, and improve overall comfort. It can also help to reduce humidity levels and provide a more consistent temperature throughout the room. Additionally, standing air conditioner fans are portable and easy to move around, making them a convenient cooling option for different areas of the home.


How do you use the verticon air combat arena without the fan Mine didn't come with it...?

Yes, you need the fan otherwise you can not use them as "air combat"


Does the fan come on when heat pump is turn on?

Yes, the fan on the heat pump unit will typically come on to help circulate air when the system is turned on. This is necessary for distributing the heated or cooled air throughout the space.


Should the cooling fan come on when the air conditioning is on a 96 neon?

Yes