00:01
Hello students in this question we have to calculate the sensible cooling load.
00:04
So the equation for the heat gain or loss is equals to hc.
00:11
Hc is the heat transfer coefficient, a is the area cross sectional area and delta t is change in temperature.
00:21
Now for the first for north wall q1 is equals to for this value hc is given transfer coefficient is given in the table which is given in the question is 0 .5 c, 0 .56 british thermal unit per hour and into cross sectional area 360 feet square into change in temperature that is the 78 is given and this wall value is 79.
01:04
Now after calculation we will get this is equals to minus 201 .6.
01:08
Now second for the east wall q2 will be equal to the 0 .56 into 360 78 minus 80 is equals to minus 403 .2 and next is the south wall q3 is equals to 0 .56 into 280 into 78 minus 81 is equals to minus 470 .4 next is the south window south window q4 is equals to 0 .56 into 80 into 78 point sorry 78 minus 81 .75.
02:13
So after calculation this is equals to the minus 168.
02:19
Now next value is west wall west wall q5 is equals to 0 .56 into 360 into 78 minus 79.
02:37
So this is equals to minus 201 .6 and q5 all the unit of this is the british thermal unit per hour and the roof roof for roof q6 is equals to 0 .18 into 900 into 78 minus 78.
03:03
So this is equals to 0 and next is the floor for floor q7 is equals to 0 .18 into 900 into 78 minus 72...