Question

Airflow through a long, 0.2-m-square air conditioning duct maintains the outer duct surface temperature at 10°c. If the horizontal duct is uninsulated and exposed to air at 35°c in the crawlspace beneath a home, what is the heat gain per unit length of the duct?

Answer 1

duct is uninsulated and exposedto air at 35?C in the crawlspace beneath a home , what isthe heat gain per unit length of the duct