I've been considering this for solar thermal (pool heating) applications. Any comments on how far away these can be effective? For example, what if I am 30 feet away, trying to diagnose a flow rate issue through a large array of panels? I would need to get far enough away to get the whole system in the field of view. Would I be able to see hot spots where panels have no flow of water?
Jason Szumlanski On Jun 12, 2013 11:14 AM, "Randy" <ra...@positiveenergysolar.com> wrote: > Andrew,**** > > We purchased the Flir I7 based on Bill Brooks recommendations. It has > worked well. Plenty of battery life for doing large arrays**** > > ** ** > > We have evaluated over 400kW of arrays and we have found issues – we found > modules that show hot cells. We learned the temperature impact of shading > and dirt or bird poop on the module. We discovered 7 modules at one 120kW > site and when we did IV curves we found only one module had reduced > output. **** > > ** ** > > See attached photo as an example.**** > > Good luck.**** > > Randy**** > > ** ** > > Randy Sadewic**** > > Positive Energy**** > > **** > > Office: 505 424-1112**** > > Cell: 505 570-0137**** > > *From:* re-wrenches-boun...@lists.re-wrenches.org [mailto: > re-wrenches-boun...@lists.re-wrenches.org] *On Behalf Of *Andrew Truitt > *Sent:* Tuesday, June 11, 2013 4:55 PM > *To:* RE-wrenches > *Subject:* [RE-wrenches] Thermal imaging**** > > ** ** > > Wrenches - I am considering the purchase of a thermal imaging camera for > PV system commissioning applications. Prices seem to range from $1,000 to > $10,000+. Primary manufacturers seem to be Fluke and Flir, with Extech, > Ideal and Milwaukee offering a few products as well. It seems to me that > the key factors to consider are temperature range, thermal sensitivity, > screen resolution, screen size, battery life, type of image capture and > price. Does anyone have experience with using thermal imaging to identify > temperature irregularities in modules and/or electrical equipment? What > temperature range, thermal sensitivity, and screen resolution is needed for > both/either of these tasks? What have been the key factors/specifications > in terms of ergonomics and functionality? Any preferences in terms of > manufacturer?**** > > ** ** > > ** ** > > For a brighter energy future, > > > Andrew Truitt > NABCEP Certified PV Installation Professional™ (ID# 032407-66)**** > > Principal > Truitt Renewable Energy Consulting, LLC**** > > (202) 486-7507**** > > LinkedIn Profile <http://www.linkedin.com/pub/andrew-truitt/8/622/713>**** > > Company Website <http://truittreconsulting.weebly.com/>**** > > > [image: 24 copy.jpg] > > "Don't get me wrong: I love nuclear energy! It's just that I prefer fusion > to fission. And it just so happens that there's an enormous fusion reactor > safely banked a few million miles from us. It delivers more than we could > ever use in just about 8 minutes. And it's wireless!" > > ~William McDonough**** > > ** ** > > > > **** > > ** ** > > **** > > _______________________________________________ > List sponsored by Home Power magazine > > List Address: RE-wrenches@lists.re-wrenches.org > > Change email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > > >
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