| Author | Message | ||
| clint hunter (Truthhunter)
Registered Member Username: Truthhunter Post Number: 440 Registered: 1-2009 Posted From: 24.129.232.232  Rating: |
Do anyone have any experience or hearsay knowledge with Amorphous silicon photovoltaic cells like the model US-64 from Uni Solar http://www.backwoodssolar.com/catalog/solar_panels.htm#UNISOLAR or even experience with the Uni Solar's flexible solar cell shingle. I have this notion to make the system triple as 1. a awning solar array ( better angle to the sun than "roof flat" = more watt efficiency ), 2. a awning for shade on the "east/south/west side of the bus when parked ideally. The third mode is as a solar heat collector on the back side for water and house heat, as these very durable (no glass) flexible cells do not lose power generation efficiency with high heat, unlike most other types of PV cells , which are apparently more fragile for road travel than the flexible. ~~ of course I also ask the standard electronic durability question regarding the ability to survive a EMP event such as lighting strikes, solar storm or interstellar storm ? Ideas on shielding or isolation the system for emf events for reliability concern are welcome & needed. here be the link to those cheaper per watt- flexible "shingle style" PV cell collectors, you could shingle the roof, but who wants the extra heat gain to deal with in warmer pastures ? http://www.innovativesolar.com/solar-modules-196/uni-solar-207/ | ||
| clint hunter (Truthhunter)
Registered Member Username: Truthhunter Post Number: 441 Registered: 1-2009 Posted From: 24.129.232.232 Rating: |
here are a few specs on the 16" x 216" roll collector, it is 144 watts at under $500 http://www.innovativesolar.com/PDF_Files/PVL-144-EN.pdf -the PV cell rolls do come smaller -- hung over the roof radius for collector angle efficiency, --- if not for a window awning, movable to either side of the bus for redundancy and efficiency, maybe even a auto sun tracker that would pivot the awning to various positions over the bus as the sun rises & sets, like a partial bonnet, thereby giving better bus shade and higher collector efficiency. ~Nothing to elaborate, but then acquiring hydro-carbon energy sources may not always be a simple or a cheap task. ... Materials are changing, even if most often for the worse. So we do it our way ... | ||
| clint hunter (Truthhunter)
Registered Member Username: Truthhunter Post Number: 442 Registered: 1-2009 Posted From: 24.129.232.232 Rating: N/A |
ah ha , found the infromation http://www.uni-solar.com/uploadedFiles/0.4.2_white_paper_2.pdf and lots more here http://www.uni-solar.com/interior.asp?id=49 interesting product the hole idea of protable solar panels with mutli-funcition may have merit as long as "theft-ablity" doesn't become the trade-off. . thanks for thinking on it busnuts. | ||
| John MC9 (John_mc9)
Registered Member Username: John_mc9 Post Number: 978 Registered: 7-2006 Posted From: 74.162.73.247  Rating: N/A |
Uhm... did someone mention the weight factor, and what the awning roller weight capacity might be, or the thickness of the "flexible solar cell shingle" versus the thickness of standard awning fabric and how that plays with the standard awning structure and hanging apparatus? Just curious, ya'know? | ||
| clint hunter (Truthhunter)
Registered Member Username: Truthhunter Post Number: 443 Registered: 1-2009 Posted From: 24.129.232.232 Rating: N/A |
I would not guess that one could roll the collector up in a off the shelf stick'n'stapels awning, was thinking much stronger , custom made mold-able to the shape of the roof meets sides radius mounted on a frame designed for tracking the sun, capable of duty as a awning or bus shade or eve complete removal for remote re-location (think park in the shade & collect photons in the sun a distance away). -Haven't found anyone that has used these Amorphous Silicon PV cells in a moblie application in the roadway enviroment. +One could just "glue it" into your roof if you have something modern, smooth and rivet-less, but then you have thermal transmission & slight reduction of output in extreme heat. ...Curiosity may lead the cat to solutions, I do know that much... | ||
| clint hunter (Truthhunter)
Registered Member Username: Truthhunter Post Number: 462 Registered: 1-2009 Posted From: 24.129.237.52 Rating: |
http://www.innovativesolar.com/PDF_Files/PVL-144-EN.pdf list the weight at 17 lbs 144 watt 216" long by 15.5" wide collector (the largest) : • High Temperature and Low Light Performance • 20 Year Warranty on Power Output at 80% • Quick-Connect Terminals* and Adhesive Backing • Bypass Diodes for Shadow Tolerance • UL 1703 Listed to 600 VDC • IEC 61646 v1 certified • IEC 61646 v2 and 61730, TUV certification pending Performance Characteristics Rated Power (Pmax): 144 Wp Production Pmax Tolerance: ± 5 % Construction Characteristics Dimensions: Length: 5486 mm (216"), Width: 394 mm (15.5"), Depth: 4 mm (0.2"), 16 mm (0.6") including potted terminal housing assembly Weight: 7.7 kg (17.0 lbs) Output Cables: 4 mm2 (12 AWG) cable with weatherproof DC rated quick-connect terminals* 560mm (22“) length. By-pass Diodes: Connected across every solar cell Encapsulation: Durable ETFE high light-transmissive polymer Adhesive: Ethylene propylene copolymer adhesive-sealant with microbial inhibitor Cell Type: 22 triple junction amorphous silicon solar cells 356 mm x 239 mm (14" x 9.4") connected in series ~ but this is designed to be laid on a roof top for support; being a roll of stainless steel with the cells, circuits and transparent plastic that encapsulates it. I am imagining a tube framework for the bonnet/awning and the collector as the outside skin (think aircraft wing style in monocote construction). The tubes could be used for "coolant" or enclose (ventable when not collecting heat, just electrical power) and use air-to-air for heat transfer if incorporating "co-gen" solar heating into the design. So weight need not exceed 100lbs. total for a double wide 36" x 220" collector array/awning-bonnet. -As always all are welcome to be the first to invent this "space shuttle" contraption before I go full at it, and share your thoughts-constructive or deconstructive. The important first step to progress is, as usual, disclosure , that none could patent or hoard any knowledge once it becomes public domain. |
