IR camera for solar module inspection

[2lai]

I am looking for an IR camera capable of solar module characterization. Could you recommend some brand with best cost to performance ratio? Thanks a lot.

 

[IRstuff]

By solar module, do you mean solar cell?

What specific characteristics are you trying to characterize?

TTFN

FAQ731-376

 

[2lai]

Solar module is an assembled solar cell array ready for installation. IR camera has been used to characterize the "hot spots" of solar module during operation --- not sure if industrial standards have been released.

 

[IRstuff]

What kind of "hot spots?" A solar cell array is a passive device.

TTFN

FAQ731-376

 

[2lai]

A single solar cell is a passive device. However, the individual can be screwed in an array (such as shading effect).

 

[IRstuff]

That sounds more like an optical design problem, not a thermal problem.

TTFN

FAQ731-376

 

[2lai]

I don't think the shading effect can be avoided by optimizing the optical design. You may look the internet for more details. The IR camera vendors may be happy for this market

I am still looking forward to recommendations of IR camera.

 

[IRJohn]

In a photovoltaic installation efficiency is a function, in part, of temperature; cooler panels run more efficiently. Infrared can be used to understand overall thermal patterns, including shading. Also, as individual cells fail, they can begin to heat rather than collect, and can be seen. In all cases you must remember the front surface will be quite specular (mirror-like) and reflective. The attached image shows the front side of a PV panel; the hot spots are thermal differences (not problems) associated with the connectors.

Thermally yours,
John Snell
Snell Infrared

http://www.thesnellgroup.com

800-636-9820

If I can be of further assistance, please feel free to contact me.
John Snell
Snell Infrared

http://www.snellinfrared.com

 

[2lai]

Thanks John for the IR image. Is it 320x240 resolution? Could you tell me the model of the IR camera?

 

[IRJohn]

The system used was a 320x240 Fluke Ti55, a longwave sensing system.

If I can be of further assistance, please feel free to contact me.
John Snell
Snell Infrared

http://www.snellinfrared.com