sicus
Industrial
- Oct 14, 2009
- 3
The formula Q=U*A*(Tf-Ti) gives the total rate of heat transfer.
Q may be replaced with phi in some formulas
The units for U(heat transfer coefficient) are W/(m^2K)
and Tf/Ti are K
and for A they are m^2
crossing the units gives the units of Q to be Watts(W)
Why is it a rate of heat transfer, shouldn't it be in W/s if it is a rate?
Or have i just been told wrong that Q stands for rate of heat transfer, should it actually be amount of heat transfer?
Q may be replaced with phi in some formulas
The units for U(heat transfer coefficient) are W/(m^2K)
and Tf/Ti are K
and for A they are m^2
crossing the units gives the units of Q to be Watts(W)
Why is it a rate of heat transfer, shouldn't it be in W/s if it is a rate?
Or have i just been told wrong that Q stands for rate of heat transfer, should it actually be amount of heat transfer?
