Grade Calculate the heating load for the shown hall due to walls, doors, windows and infiltration. The inside and the outside design temperatures are 20 and 2C, respectively. Find the percentage contribution of each heat loss component to the total heating load of the hall. 15 -wool- 2 windows Hall 3 windows 18.0 m- The following data are given: Walls Windows 7-cm stone (k-2.2 W/mC), 20-cm concrete (k =1.75 W/m C), 5-cm insulation (k=0.03 W/mC), 7-cm cement blocks (k=0.9 W/mC) and 2-cm plaster (k = 1.2 W/m C). 2.4 x1.2 m, sliding aluminum with U, = 6.7 W/mC and infiltration air coefficient, K=0.45. Inside and outside air film resistances are 0.2 and 0.05 mC/W. Wind speed 15 m/s, S, and S, are 1.00 and 0.95, respectively. Doors = 1.2 x 2.2 m, Wood with U=3.5 W/mC and A, infiltration air coefficient, K-0.65, ceiling height=2.75 m.