A fan is a powered machine used to create a flow of air. A fan consists of a rotating arrangement of vanes or blades, generally made of wood, plastic, or metal, which act on the air. The rotating assembly of blades and hub is known as an impeller, rotor, or runner. Usually, it is contained within some form of housing, or case. This may direct the airflow, or increase safety by preventing objects from contacting the fan blades. Most fans are powered by electric motors, but other sources of power may be used, including hydraulic motors, handcranks, and internal combustion engines.
Mechanically, a fan can be any revolving vane, or vanes used for producing currents of air. Fans produce air flows with high volume and low pressure (although higher than ambient pressure), as opposed to compressors which produce high pressures at a comparatively low volume. A fan blade will often rotate when exposed to an air-fluid stream, and devices that take advantage of this, such as anemometers and wind turbines, often have designs similar to that of a fan.
Typical applications include climate control and personal thermal comfort (e.g., an electric table or floor fan), vehicle engine cooling systems (e.g., in front of a radiator), machinery cooling systems (e.g., inside computers and audio power amplifiers), ventilation, fume extraction, winnowing (e.g., separating chaff of cereal grains), removing dust (e.g. sucking as in a vacuum cleaner), drying (usually in combination with a heat source) and providing draft for a fire. Some fans may be indirectly used for cooling in the case of industrial heat exchangers.
While fans are effective at cooling people, they do not cool air, but rather work by evaporative cooling of sweat and increased heat convection into the surrounding air, due to the airflow from the fans. Thus, fans may become less effective at cooling the body if the surrounding air is near body temperature and contains high humidity.
LINK: Desk Electric Fan Small Foldable Fan with USB Charging Retractable 3-speed Portable Mini Fan on Doba PH | Explore Details and Secure Your Purchase
链接:Desk Electric Fan Small Foldable Fan with USB Charging Retractable 3-speed Portable Mini Fan on Doba PH | Explore Details and Secure Your...
helow po sa lahat mag tanong lang po ako pwede ko ba gamitan sa electric fan ko ang capacitor na 1.5 uf 450 V.ac
ang nakalagay sa kanya capacitor na sira na is 1.5 uf 350 V.ac kaya pwede ko ba gamitin ang 1.5 uf 450 V.ac
patulong po salamat po
Ptpa
Tanong lang anong tawag doon sa parts ng electric fan parang ring sya na kurba kurba? nawala ko kase di ko alam tawag, doon sya nilalagay sa kabitan ng elesi.
Salamat
Bago pa kasi to. 2 weeks palang to sira na agad. Pano po ba ayosin pag hindi gumagana ang pang off ng electric fan. Kahit e off ko ang lakas parin ng ikot. Sinubokan ko ng tangalin ang saksakan ang lakas parin ng ikot eh. Pano kaya to mga lods.😭
Sa mga Electronics dito o sa mga marunong, tanong ko lang po, paano po ayusin yung electric fan na hindi na umiikot pero pag tinangal mo yung fan blade tumutunog naman sya tapos kapag pinaikot mo ng walang blade gamit yung kamay umiikot sya kaso di nya kaya yung blade at mahina?
mga sir patulong naman diyan sa mga nag aayos ng electric fan.
yung electric fan ko kasi hindi na umiikot.
nilinis ko na at chineck ko na din yung bushing (ok pa naman wala pang gap o alog) at bago langis na din.
pag inplug ko sa outlet, umuugong lang (parang nag va.vibrate), hindi umiikot...
Guys bigla nalang di umikot elesi ng fan namin tas ayun nilinis ko kinalas ko lahat, tapos pinapaikot ko yung nag papaikot sa elesi parang medyo malagket na di malaman kulang ata sa grasa natonog panaman , pero nung ninamber tree ko parang kumakaskas yung nag papaikot, kulang po ba to sa grasa o...
Pakitognan nalang yung picture boss. Ayaw kase magalaw nung neck nung electricfan namin kaya di ko mayuko. Sa taas nakatapat ang init pa naman ngayon. Kakabili lang boss kaso di ko alam kung paano ayusin to. Patulong nalang boss reply kayo kung alam niyo. Thanka
paalala: ang tema ng kwentong ito ay hindi pwedeng pang binata at dalaga, bata pwede pa. Ngunit siguraduhing may electric fan sa cr pag sakaling di mo nabasa ng malaliman.
Again ELECTRIC FAN.!
Ang tamang Pagkain
Pinunasan ko muna ang mamasa-masa kong kamay bago ko sinimulang hinalungkat...
hello mga ka PHC mayroon akong nadiskubreng tricks for faster internet connection pero wag nyo akong tatawanan ha xD itong tricks na ito ay nagmula pa sa ninuno namin xD so here we go first on yung phone syempre, tapos on yung data syempre, tapos on si electric fan, sa tingin nyo mga ka PHC para...