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Your body generates enough heat that you stay warm and the air immediately around you is warmed slightly. When a fan blows, it moves the air that surrounds your body, replacing it with cooler air, making you feel colder. Moving air is not colder than still air, but it is colder than the air near your skin.
Wiki User
∙ 15y ago
Wiki User
∙ 15y agoAir movement does not make the air cooler, it only make it feel cooler. This is due to the effect of the evaporative cooling of the moisture on your skin. Wind Chill Factor is a good illustration of this. The temperature is the same and if it is windy outside, you will feel colder proportional to wind speed.
Wiki User
∙ 14y agoThat is a common misconception. Moving air does not make it colder. In the case of a fan, it feels colder because the layer of air immediately touching your skin forms a blanket, so to speak, of moisture saturated air. The fan (or any moving air) blows this layer away and allows more perspiration to evaporate. When the perspiration evaporates, that takes heat energy away from your body and you become cooled. If you try the same fan on a day when the humidity is really high, you will notice that it is not as effective.
Wiki User
∙ 14y agoa fan moves air with fan blades.
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Why does the air from a fan's jet stream feel cooler than the surrounding environmental temperature?
Temperature is the same, but the stream of air takes more moisture off your skin then steady air. While doing that it effectively cools more your skin. As result you feel it as "cooler" air.
What is the purpose of a ceiling fan?
A ceiling fan provides air circulation which can make the air immediately around your body cooler (because if the air is stagnant the heat from your body will make you feel warmer than the actual room temperature). It is important to note that a ceiling fan actually contributes heat to a room, so if no one is going to be present to enjoy its effects, you might as well turn it off.
Why a spark is produced in the switch of a fan when it is switched off?
when inductive load is switched off then current decreases as a result emf induced in the inductor or as whole of the circuit. There is air between switch and circuit wire. Emf tends to jump from higher pd to lower pd so air become ionised and spark is prouced
Why do you get relief under a fan when you are perspiring?
The air blows against the perspiration, and it in turn cools the skin as it evaporates. When a liquid evaporates is cools. This is how a swamp cooler works.
What would cause a ceiling fan's lights and fan to stop working while the small LED on the wall switch still lights when it is switched on?
That led is only showing that there is power to the switch and/or the light and fan fixture. You would have to check the power at the fixture to determine if it is actually in the switched feed or the fan/light assembly.
Why does the air from a fan's jet stream feel cooler than the surrounding environmental temperature?
Temperature is the same, but the stream of air takes more moisture off your skin then steady air. While doing that it effectively cools more your skin. As result you feel it as "cooler" air.
Explain the following statement you feel cooler on a hot day when you turn on a fan even though the air being blown around is hot?
Before you turn on a fan, the air is essentially hot because it is still and there is no circulation byconvection of the air currents. When you turn on the fan, it sparks a circulation where the hot air at the top flows to the opposite side of the room, and then eventually becomes cooler and more dense, falls to the floor, and is pushed back towards the fan by the incoming hot air. So, when you turn on the air, the fan is just cirulating hot air, not making it colder. The air only becomes cooler when it flows away from the fan.
How does an electric fan manage to throw so much air when it is switched on?
yes
How does electric fan manage to throw so much air when it is switched on?
yes
Why do we feel relieved under a fan when you prespire?
this is so as the point of sweat is to make you colder when it evaporates off your skin. The fan makes it evaporate faster so you feel cooler and relieved.
When a fan is switched on inside a closed room will the air inside be cooled?
Fans can make a room cooler by circulating the air, but can also help circulate warm air, especially in the winter months. If it's a ceiling fan, putting the fan blades in reverse will push the warm down.
What is wrong when a Neon cooling fan cycles on and off repeatedly even when cold?
Is the air con switched on? If not you are looking at faulty fan switch or wiring.
1993 Mercury Topaz fan motor cooler tub?
There isn't anything that cools the fan the fan is only on long enough to cool your motor then the air as you drive cools the fan
A sealed room has constant temp say 21C why when you turn a fan the air feels cooler if it is circulating the same air all at 21C?
Air in motion will cool your skin because it helps to vaporize the moisture from perspiration. The room doesn't get any cooler, but it feels cooler to you.
When you sit under the fan after bathing you feel cool why?
When you sit under a fan after bathing, the moving air from the fan helps to increase evaporation from your wet skin. This evaporation process cools down your body. Additionally, the fan provides a breeze that helps to dissipate any residual heat on your skin, making you feel cooler.
Your heater fan is set to max but only blows out low heat?
The heater fan ONLY blows the air, it does not make the temperature of that air. Your heater temperature controls how hot the air is. Adjust your heater temperature for hotter or cooler air.
When the fan blows cooler air from outside the car into the car and forces warmer air in the car out is this an example of conduction convection or radiation?
convection
