The fan seems to come on for short bursts on high speed every 30 to 60 seconds on my Acer 5633. Is there a way to control this?
Sounds like a cooling issue to me. Laptops are fairly tightly packed inside and cooling ducts can become blocked with dust and fluff.
I would suggest vacuuming the air intakes and outlets and if this doesn't work try opening the case* and blowing it out with an air duster.
[Question of the week.]
*May invalidate your warranty. I take no responsibility for anything, ever.