Hi CARRIER HAP load calculatio
Hi CARRIER HAP load calculatio
(OP)
Hi
CARRIER HAP load calculation shows different heat load for a same roof/wall with same U value but different thickness. Logically more the thickness greater the heat/cooling load
but by the equation of heat transfer for wall/roofs it only depends on the area, U and temp.difference
could anybody explain why?





RE: Hi CARRIER HAP load calculatio
RE: Hi CARRIER HAP load calculatio
U = t/lambda t: thickness; lambda: thermal condutivity
Q=U*A*deltaT
"CARRIER HAP load calculation shows different heat load for a same roof/wall with same U value but different thickness."
I don't quite understood what you meant whit "same roof/wall".
I'm going to guess that they have the same area, but have different materials.
RE: Hi CARRIER HAP load calculatio
RE: Hi CARRIER HAP load calculatio
Is the material the same in both cases?
RE: Hi CARRIER HAP load calculatio
RE: Hi CARRIER HAP load calculatio
Is it the same material? I don't know, that's why I said:
I don't quite understood what you meant whit "same roof/wall".
I'm going to guess that they have the same area, but have different materials.
If they have the same material, makes no sense to change the thickness and U-value stays the same.
RE: Hi CARRIER HAP load calculatio
RE: Hi CARRIER HAP load calculatio
Robertogrrmos, you must be right, though the heat transfer equation shows only the area, the U value should depend on the thickness.
I meant same wall that the same area and orientation.