ttj
02-11-2011, 11:20 AM
Hey,
First a little introduction - I'm a former electrician and now I'm studying Energy Technologist. As a part of my education, I have to make energy analyses of different buildings. Now I'm working on a supermarket; I have made the calculations on walls, lighting, user behavior etc. BUT I'm stock with the calculations on the display counters. It is some old display counter with open tops. The customer is only interested in solutions with a short payback, so the only solution will be to make the display counters to closed tops.
And now my problem occur! I don't know how to calculate the energy saved by closing the display counters. I have tried to use Cooltools-A - Refrigerated display cabinets, but when I plug in my info, it looks like, that there is no savings by choosing closed display counters.
Is there another program - or an equation - to solve my problem?
Thanks in advance.
First a little introduction - I'm a former electrician and now I'm studying Energy Technologist. As a part of my education, I have to make energy analyses of different buildings. Now I'm working on a supermarket; I have made the calculations on walls, lighting, user behavior etc. BUT I'm stock with the calculations on the display counters. It is some old display counter with open tops. The customer is only interested in solutions with a short payback, so the only solution will be to make the display counters to closed tops.
And now my problem occur! I don't know how to calculate the energy saved by closing the display counters. I have tried to use Cooltools-A - Refrigerated display cabinets, but when I plug in my info, it looks like, that there is no savings by choosing closed display counters.
Is there another program - or an equation - to solve my problem?
Thanks in advance.