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Author Topic: Could we use the Rotating Motion of a E.Fan's Motor to drive a simple Charger?  (Read 1011 times)
mentamide
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« on: March 06, 2010, 01:14:47 PM »

Could we use the Rotating Motion of a Electric Fan's Motor to drive a simple Charging system?, meron na din ako isa post dito sa forums regarding that question.....Law of Conservation of Energy nga po...pero meron po ba ako pwedeng gawin para at least makagawa ako ng E.fan and Charger at the same time, makukuha ko ung benefits ng Rotating Motion nito for a simple CP charger of at least a battery Charger,....kung baga Concept ng Motor na gagamitin as a generator.....is it possible?? Medyo nahihirapan kasi ako sa Design ng gagawin ko eh......anybody pls help me...
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« on: March 06, 2010, 01:14:47 PM »

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ΔЅịMø
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« Reply #1 on: March 06, 2010, 03:07:46 PM »

possible poh cguro.. pro, bakit sa e-fan kpa kukuha nang pang-charge? di naman poh iikot and e-fan kung walang kuryente db?  Cheesy  Cheesy  Cheesy
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« Reply #2 on: March 06, 2010, 05:26:28 PM »

^ agree.

yup pwede naman talaga 'yan, pero mas practical pa rin mag-charge directly na lang.
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« Reply #3 on: March 06, 2010, 05:31:35 PM »

siguro kung i lalagay mo yung electric fan sa bubuong o mataas na lugar tas gagawin nyong wind mill. pwede.
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mentamide
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« Reply #4 on: March 07, 2010, 09:03:00 AM »

hahaha...pwede po dba??? ANg idea po kasi ay mag-enjoy sa Lamig na dulot ng E.fan and in return, nagchcharge ka na din....sayang din kasi minsan ung oras na bukas ung E.fan eh.....parang WIndMill nga ang silbe nya...pero kailangan Functional pa din ung FAN
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mentamide
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« Reply #5 on: March 07, 2010, 09:08:04 AM »

The main idea po ay kung mas less ang Power consumption kung ang Charging System ay i-drive ng Motor of the E.Fan. Medyo wala pa din kasi kami Design with this aspect, unang una po kasi bababa ang effciency ng Fan mismo.

"Madaming nakontra, pero matinding Design lang ang katapat na at matinding research".-sabi ko sa Prof. ko, ayun gudluck daw^^ hahaha
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« Reply #6 on: March 07, 2010, 10:05:49 AM »

Kung ang charging system mo ay i-drive ng fan mo, the motor of the fan will look at your charging system as an additional load and there mas lalakas rin ang hugot ng fan ng power.

Iba yan sa diesel electric na during idle run ng engine ay nag-charge sya ng battery, kaya mataas ang efficiency ng diesel electric.

Yung sa fan iba sya, kapag nag couple ka ng motor/generator sa rotor ng fan, additional load yun sa kanya, at sa law of conservation of energy, di naman pwede mag produce sarili nyang energy yung fan, therefore huhugot rin yan sa power line mo, so in the end, wala ka naman na-save, nagastusan ka pa dahil mas bumaba ang efficiency mo.
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« Reply #7 on: March 07, 2010, 10:32:23 AM »

The main idea po ay kung mas less ang Power consumption kung ang Charging System ay i-drive ng Motor of the E.Fan. Medyo wala pa din kasi kami Design with this aspect, unang una po kasi bababa ang effciency ng Fan mismo.

nope. mas mababa pa rin power consumption kung direkta na sa wall plug at gumamit na lang ng mas maliit na fan.
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« Reply #8 on: March 08, 2010, 06:02:12 PM »

get it........may naisip na po ako sa mga sinabi nyo......isasaalang -alang ko ang LAW of CONSERVATION of Energy.....and in fact, ndi ako naniniwala sa Energy Saving! i-uupgrade ko na lang ng HUSTO ang E.FAn
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« Reply #9 on: March 08, 2010, 06:14:43 PM »

Kung ang charging system mo ay i-drive ng fan mo, the motor of the fan will look at your charging system as an additional load and there mas lalakas rin ang hugot ng fan ng power.

Iba yan sa diesel electric na during idle run ng engine ay nag-charge sya ng battery, kaya mataas ang efficiency ng diesel electric.

Yung sa fan iba sya, kapag nag couple ka ng motor/generator sa rotor ng fan, additional load yun sa kanya, at sa law of conservation of energy, di naman pwede mag produce sarili nyang energy yung fan, therefore huhugot rin yan sa power line mo, so in the end, wala ka naman na-save, nagastusan ka pa dahil mas bumaba ang efficiency mo.

super duper agree ako dito,not to mention na yung charging system ay magbablock din ng hangin sa fan na magdaragdag sa inefficiency ng system, eto ang nakakalimutan ng mga tagapagtaguyod ng free energy.

hindi mo talaga malalampasan basta basta ang law of conservation of energy. The more stages na dadaanan the losses it will incur
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mentamide
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« Reply #10 on: March 08, 2010, 06:32:05 PM »

yeh,,,,kaya nga eh......ganito na lang guyz??? Can you give me a HINT or IDEA kung paano ko idedevelop or try to enhance the E.FAn .....hahaha MEDYO adik ako sa FAN eh.....cya talaga napagDIskitahan ko.....
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« Reply #11 on: March 09, 2010, 10:50:01 AM »

mauuso na naman ang brownout ngayon at mahirap kung brownout eh walang electric fan, gawa ka na lang ng rechargeable fan, hehehe
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« Reply #12 on: March 11, 2010, 02:21:53 PM »

mauuso na naman ang brownout ngayon at mahirap kung brownout eh walang electric fan, gawa ka na lang ng rechargeable fan, hehehe
[/quoyah.. tama.. pra at least, khit na walalng kuryente, may efan prin na magagamit... ^_^
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« Reply #13 on: June 16, 2010, 04:47:49 PM »

Mentamide,hello.

     Over time you will hear of the term "insertion loss". It refers to putting in energy and taking it our in another form, whether mechanical or electrical pa rin such as different voltage. katumbas din yan ng "efficiency" in the use of energy. for example ang brushed motor is said to be 60% efficient in the use of energy vs 90% for brushless motor. So, sa E. fan may "insertion loss" na. and that is the reason forth explantion that you are better of using a transformer directly on the wall      to make a charger rather than to use the fan to churn a generator. While nothing is free, that is true, it is even worse when you run it through the fan, may extra losses pa. if your need is very tiny, put a small toy motor with a propeller in front of the fan clipped to the wire cage. it may be just enought to turn on an LED.

     This problem is similar to the thinking that the aircon in the car is free, total tumatakbo na rin and makina. Wrong! the moment the AC is turned ON, the engine slows down due to the load. and more gas is needed to bring it back to the original rpm.  In the same manner, carryuing one more pasenger in a car cost more in fuel.

     Tell you what, altho if may take you away from the E. fan fetish. Gumawa ka ng Anemometer style windmill na may stepper motor attached. You might be able to charge your CP. use a voltage regulator to make the V steady.(5V).

     Or, Pre, kung may mataba sa bahay nyo, gagawa kuno ng exerciser para sa kanya, ung stationary bike. Lagyan mo ng 6V dynamo sa tire kunwari to read his or her speed. Pero nkatap dun ang isang diode pumupunta sda 7805  voltage regulator to your CP. secret lang. Libre ang charge mo. Kung maraming mataba sa bahay nyo, pati yung lanter SLApwede e charge. It can run your small e. fan later.(mabuti na lang bnumalik ang fan sa excena).

BK
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mentamide
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« Reply #14 on: June 30, 2010, 11:08:42 AM »

@bravokilo
          I like the idea nung sa matabang lalaki...parang yung sa japan...bali ang dynamo ang magiging??? the idea as whole....natawa ako pero nakuha ko yung point.....hmm....iniisip ko pa din talaga ang E.Fan na yan e......bakit kasi ganun.....napaisip tuloy ako kung paano gumawa ng portable generator e...
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« Reply #15 on: July 02, 2010, 03:05:20 PM »

actuall pwede electric fan.  kabit mo yung pinaka blade sa isang dc motor.  Hanap ka lang ng low RPM na motor na 6V or 12V depende sa output na gusto mo. tapos gawa ka lang ng frame at i lagay mo sa labas ng bahay nyo na mahangin (terrace, bintana, or sa garden). 

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« Reply #16 on: July 02, 2010, 03:52:29 PM »

^ mas maganda output sa stepper sir, kaysa doon sa ordinaryong DC motor. 'yun nga lang, merong detent torque kaya kailangan malakas na talaga 'yung hangin. actually, kayang i-drive ng stepper ang isa pang stepper, pagkabitin lang 'yung wires nila, parang 1:1 coupler na siya. eto ang test ko dati sa stepper kung buo.

nasubukan ko na mag-charge ng battery gamit 'yung 3.4A 2.4V na stepper na gamit namin dati, sa barena ko sinaksak to test, ayun 'di naman nasunog 'yung windings nasa 7V 1A 'yung output.
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mentamide
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« Reply #17 on: July 02, 2010, 10:08:23 PM »

rdpzycho.....ayun ang kelangan ko for this project!>....meron ka procedures dyan sir?
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rdpzycho
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« Reply #18 on: July 02, 2010, 10:37:47 PM »

^ 'di na siya electric fan talaga, kailangan sa labas siya ilagay. katulad lang nung sabi ni sir mcgyver. Wink
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mentamide
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« Reply #19 on: July 02, 2010, 10:41:34 PM »

pwede namn yan sa mga industry eh.....dba dba?Huh hmmm.........parang bubuo ata ako ng Wind Mill hahahahah^_^//// may procedure ka po sir.?
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