Does anyone have any data on testing the SOMs cooling efficiency with/without a heatsink and by mounting it to the enclosure in a closed enclosure with no option for having a fan (IP Ratings)?
I've got in touch with NI but sadly there wasn't any available test data similar to this: http://www.ni.com/product-documentation/14134/en/
If you would send me a direct message with your contact information, we assist with a design review regarding custom enclosure solutions. Each application is unique and differs by carrier board power consumption, SOM power consumption, whatever else is in the enclosure, and how the SOM is mounted.
Once we know what the proposed end solution is, we can help guide you based on our past experience with sbRIO and on other SOM solutions. From there, we can assist in determining the best way to meet your design criteria.