moonlit
Feb18-04, 03:15 PM
I thought I was doing this problem right but I was told I wasn't. Can anyone help me pinpoint my problem?
A refrigerator has a surface area of 7.09 m^2. It is lined with 0.0918-m-thick insulation whose thermal conductivity is 0.0300 J/(s m C°). The interior temperature is kept at 5.88 °C, while the temperature at the outside surface is 21.7 °C. How much heat per second is being removed from the unit?
Here's what I did:
Q/t=AK delta T/L
=(7.09)(.0300)(15.82)/.0918 = 36.7
A refrigerator has a surface area of 7.09 m^2. It is lined with 0.0918-m-thick insulation whose thermal conductivity is 0.0300 J/(s m C°). The interior temperature is kept at 5.88 °C, while the temperature at the outside surface is 21.7 °C. How much heat per second is being removed from the unit?
Here's what I did:
Q/t=AK delta T/L
=(7.09)(.0300)(15.82)/.0918 = 36.7