cooling tunnel

hi!!
i have been given the job of finding the efficiency of a cooling tunnel...but don't know much about its design and inside working.
can u give me some info bout it....

With all due respect - if you don't know what it looks like, then how are we - the distance-challenged - going to be able to help?

Do you have some pictures?

Have a look here

hey...thanks a lot.
i took out the COP of the coolin tunnel it is 4.71..can u tell me its significance(as in is it good or bad???)
also can u suggest how can we improve it??
can u also suggest a way to find out the amt of refrigerant supply to compressor

Would you like me to do all of your assignment for you or are you prepared to do a little work yourself?

You will only learn by research, hard work and determination. :)