Factory Cheap Poly-crystalline Solar Panel 50W to Bulgaria Factories
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Poly-crystalline Solar Panel 50W
Technical parameter
Maximum Power(W) 50W
Optimum Power Voltage(Vmp) 18.43V
Optimum Operating Current(Imp) 2.71A
Open Circuit Voltage(Voc) 22.48V
Short Circuit Current(Isc) 2.98A
Mechanical Characteristics
Cell Type Poly-crystalline 156 x 52mm
No of Cell 36 (4x9pcs)
Dimensions 678x542x25mm
Weight 4.2Kg
Front Glass 3.5mm,High Transmission, Low Iron,Tempered Glass
Junction box IP65 Rated
Output Cable TUV 1×4.0mm2/UL12AWG,Length:900mm
Temperature and Coefficients
Operating Temperature(°C): -40°C ~ + 85°C
Maximum System Voltage: 600V(UL)/1000V(IEC) DC
Maximum Rated Current Series: 15A
Temperature Coefficients of Pmax: -0.47%
Temperature Coefficients of Voc: -0.389%
Temperature Coefficients of Isc: 0.057%
Nominal Operationg Cell Temperature (NOCT): 47+/-2°C
Materials of solar panel
1).Solar Cell——Poly-crystalline solar cell 156*52mm
2).Front Glass——-3.2mm, high transmission, low iron, tempered glass
3).EVA——-excellent anti-aging EVA
4).TPT——-TPT hot seal made of flame resistance
5).Frame——anodized aluminum profile
6).Junction Box——-IP65 rated, high quality, with diode protection
Superiority: high quality anodized aluminum frame, high efficiency long life, easy installation, strong wind resistance, strong hail resistance.
Features
1. High cell efficiency with quality silicon materials for long term output stability
2. Strictly quality control ensure the stability and reliability, totally 23 QC procedures
3. High transmittance low iron tempered glass with enhanced stiffness and impact resistance
4. Both Poly-crystalline and Mono-crystalline
5. Excellent performance in harsh weather
6. Outstanding electrical performance under high temperature and low irradiance
Quality assurance testing
Thermal cycling test
Thermal shock test
Thermal/Freezing and high humidity cycling test
Electrical isolation test
Hail impact test
Mechanical, wind and twist loading test
Salt mist test
Light and water-exposure test
Moist carbon dioxide/sulphur dioxide
SolarCross
The Sun powered electric bicycle can ride when the sun is shining and the ground is level. This electric mountain bike will continue to roll forward with no pedaling or battery power required, powered only by the sunshine. Successfully demonstrating the design. When I do pedal however… the e-bike becomes a solar power assisted e-bike.
I tried to climb some small hills, works but still very slow…
Bike weight with out solar kit: 40 lbs
Bicycle solar kit: under 5 lbs
Open voltage: 10 volts DC
Current: 10 amps DC (under load the PV output drops)
top speed: 7 km/h
setting two goals :
1. break 10 km/h
2. reach +15km/h
The white reflectors I’ve attached on the sides of the solar panels provide a noticeable difference in output from a wider degree of angle to the sun, they reflect diffuse light and are typically used for light fixtures. The material was donated by WhiteOptics.com.
Some people in the past have commented that my mountain bike design is not ideal for reaching top speeds etc.. because of the added wind resistance from the panels… My reply is that speeds under 15-20 km/h wind resistance is minimal and rolling resistance is the greater factor.
My solar panels are very lightweight and the prototype weighed just 100g. They survived over 600km strapped to the back of my bike as I spent 16 days trekking across British Columbia, Canada. Noticeable scratches and small abrasions are covering the Fluorinated ethylene propylene or FEP top sheets and just 3 cells have incurred damage. Though they still provide enough solar juice for this video to be made !
thanks for watching..
Project: Solar-Cross
http://www.solar-cross.thekpv.com
https://www.facebook.com/SolarCross.Ebike
https://plus.google.com/+TerryHope
–
Night of the Owl by Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0
http://creativecommons.org/licenses/by/3.0/
