However, since I'm not a student there, I don't have access to their free Internet.
Now, I know that you need to be connected to the Internet in order to mine so my question is, do you think it would be worthwhile to mine in my situation? Obviously I would need to use my mobile Internet to mine which is rather expensive per GB.Because of this, I'm guessing that the profitability of mining would depend on the amount of bandwidth that mining consumes, correct?
The library is open from about 6 o'clock morning to just before midnight, so that would be roughly 15-18 hours of non-stop mining.
The miner would have to be quiet too and not emit too much heat. A USB-powered miner or something a bit bigger but with passive cooling would be perfect.