Cooling for an XPS 15 (L502x) laptop during Bitcoin Mining
Mining on a GPU, especially on less powerful ones like the ones found in laptops is highly inefficient. You can find out exactly how much you can potentially earn or lose from various Bitcoin calculators, like mine for example.

If you are worried about overheating your laptop and just want to test what mining is all about, you could also lower your hashrate, for example by introducing pauses in the miner. Most mining software should be supporting this feature, so you ought to look at the documentation.

Hardware specific question are probably best asked on different StackExchanges. You could just ask "where is my GPU on my laptop and how best to cool it?"
, which isn't Bitcoin-specific.

And if you want to ask about cooling of BitForce Jalapeno, why not post a separate question with that topic? The more specific question, the better.