sorry friend, both you need a certain level of expertise to use this program. you need to create first a graphic and synthesised model of you application and then apply boundary and internal conditions for your model.
thats give you to a simulation of your process of transference of heat.
oho, and i forget you need choose a type of finite element (rectangular, tethraedrical, triangular, and the number of nodes) and thats choice need a level of understanding for the theory of finite element.
if you have a program this contain tutorials, you can find one`s to talk about the analysis to you tray to do and is possible to you found a tutorial or document about this on internet.
This sounds really bad but if you are not prepared to put in ALOT of effort then don't even bother starting. I've been studying ANSYS for 6 months at uni (structural and thermal problems) and I have probably got a fraction of a percent of what you need to class yourself as competant.
You could probably learn how to do some basic things and get some answers but you wouldn't be able to justify them without inderstanding how ANSYS works.
If you do want to try it and put in the years of practice I'll give you one bit of advice from the start. Save, save and save all the time. ANSYS has no undo button!