Dear Abhishek,

I fully agree with Kai and normal temperature control applications are quite elegantly handled with analog PID controllers.

In case you are interested to know the specific details on applications suitable for fuzzy logic, suggest that you spend some time on the following web site - tomorrow is Sunday and time should not be an issue ( normally ).

http://www.fuzzytech.com/index.htm

They take great pains to explain the concept behind fuzzy logic. Sort of de-fuzzifying the fuzzy stuff.

Enjoy.

Raghu