I'd echo what other people are saying: bigger battery and a bigger solar panel (unless you plan to only run it for part of the day). You might also want to get ducting to ensure the fan output is directed at your bed rather than the general yurt. On Jul 20, 2014 8:40 PM, "'Adam Gensler' via hexayurt" < [email protected]> wrote:
> the fan is 0.6 amps. other specs are: Speed: 3000RPM, Noise: 45.90dBA, > Airflow: 133.60CFM > > here it is: Scythe DFS123812H-3000 Ultra Kaze 120mm x 38mm Case Fan - > 3000RPM > <http://www.amazon.com/gp/product/B001JKNMBE/ref=oh_details_o02_s00_i00?ie=UTF8&psc=1> > > perhaps i need more power from my panel, which has a max current of .57 > amps. > > > [image: image] > <http://www.amazon.com/gp/product/B001JKNMBE/ref=oh_details_o02_s00_i00?ie=UTF8&psc=1> > > > > > > Scythe DFS123812H-3000 Ultra Kaze 120mm x 38mm Ca... > <http://www.amazon.com/gp/product/B001JKNMBE/ref=oh_details_o02_s00_i00?ie=UTF8&psc=1> > Amazon.com: Scythe DFS123812H-3000 Ultra Kaze 120mm x 38mm Case Fan - > 3000RPM: Computers & Accessories > View on www.amazon.com > <http://www.amazon.com/gp/product/B001JKNMBE/ref=oh_details_o02_s00_i00?ie=UTF8&psc=1> > Preview by Yahoo > > > > > On Sunday, July 20, 2014 5:15 PM, Hunter <[email protected]> wrote: > > > What is the power draw of the fan? What fan are you using? > On Jul 20, 2014 2:23 PM, "'Adam Gensler' via hexayurt" < > [email protected]> wrote: > > hello. i'm hoping someone on this list can help a guy out who doesn't > understand electronics/solar very well. but is trying.... > > i'm trying to fix something that didn't work well the first time i tried > it--solar powered swamp cooler for the desert/burning man. there were two > problems--the cool airflow wasn't that great (got into the yurt, but didn't > go very far at all) and it didn't last for as long as i wanted. > > i'm basically just powering one computer fan ( > http://www.amazon.com/gp/product/B001JKNMBE/ref=oh_details_o02_s00_i00?ie=UTF8&psc=1 > ). > > i am using a 10w solar panel and a battery that is 7 amp hours. the solar > goes through a controller to the battery to the fan in the swamp cooler. > i'm thinking there could be 3 reasons for the fail: > > > 1. solar panel isn't powerful enough: Instapark® NEW All Black 10W > Mono-crystalline Solar Panel with 12V Solar Charge Controller > > <http://www.amazon.com/gp/product/B005LR9IOG/ref=oh_details_o00_s00_i01?ie=UTF8&psc=1> > 2. battery isn't powerful enough. > > http://www.amazon.com/Volt-Rechargeable-Battery-187-Terminals/dp/B002QGVWBW/ref=pd_sim_lg_1/189-7076484-2013714 > 3. sun wasn't powerful last year because of massive forest fire that > grayed the skies and limited the sun's power. > > > > [image: image] > <http://www.amazon.com/gp/product/B005LR9IOG/ref=oh_details_o00_s00_i01?ie=UTF8&psc=1> > > > > > > Instapark® NEW All Black 10W Mono-crystalline Solar ... > <http://www.amazon.com/gp/product/B005LR9IOG/ref=oh_details_o00_s00_i01?ie=UTF8&psc=1> > Amazon.com : Instapark® NEW All Black 10W Mono-crystalline Solar Panel > with 12V Solar Charge Controller : Patio, Lawn & Garden > View on www.amazon.com > <http://www.amazon.com/gp/product/B005LR9IOG/ref=oh_details_o00_s00_i01?ie=UTF8&psc=1> > Preview by Yahoo > > > if you have any insights, i'd love to hear them. sometimes i think i > should use to fans to power the swamp cooler, but i've seen many designs > with one and people on the interweb claim they've had success with it. > also, i know there are some formulas that people use to gauge what they > need; having trouble grasping the interplay between the different parts of > the system. > > i know very little about this crap. would like the battery to keep the > fan charged for 8 hours, if possible (starts at sunrise and keeps going > through the worst heat of the day). also, we will be adding another fan > (household) this year, so the system will need to work even harder. > > thank you in advance. my wife has threatened to bring an air conditioner > + generator next year, if this 2.0 version doesn't boast improved results. > :-( > > -a > -- > You received this message because you are subscribed to the Google Groups > "hexayurt" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/hexayurt. > For more options, visit https://groups.google.com/d/optout. > > -- > You received this message because you are subscribed to the Google Groups > "hexayurt" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/hexayurt. > For more options, visit https://groups.google.com/d/optout. > > > -- > You received this message because you are subscribed to the Google Groups > "hexayurt" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/hexayurt. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "hexayurt" group. 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