GO Mechanical
0 votes

A brick wall $\left(k=0.9\displaystyle{\frac{W}{m.k}}\right)$ of thickness $0.18$ $m$ separates the warm air in a room from the cold ambient air. On a particular winter day, the outside air temperature is $−5^oC$ and the room needs to be maintained at $27^oC$. The heat transfer coefficient associated with outside air is $20\displaystyle{\frac{W}{m^2k}}$. Neglecting the convective resistance of the air inside the room, the heat loss, in $\displaystyle{\frac{W}{m^2}}$, is

  1. $88$
  2. $110$
  3. $128$
  4. $160$
asked in Others by (21.5k points) 4 29 56
edited by

Please log in or register to answer this question.

Welcome to GO Mechanical, where you can ask questions and receive answers from other members of the community.

1,182 questions
56 answers
2,615 users