what is a load calculation? Flashcards
measure of the total heat gain or heat lost of a stracture
1
Q
what is a load calculation?
A
measure of the total heat gain or heat loss of a stractur.
2
Q
heat measured?
A
BTU’s
3
Q
heat gain
A
summer
4
Q
heat loss
A
winter
5
Q
ventilation require
A
40% heat changer per hour
6
Q
why to size HRV?
A
to provide the correct amount of ventilation.
7
Q
HRV rate
A
in cubic feet per munite
8
Q
ERV rate
A
refers to the efficiency of an Energy Recovery Ventilator
9
Q
four ways human body absorb or reject heat
A
Conduction Convection Radiation Evaporation
10
Q
wet bulb never be higher than
A
dry bulb
11
Q
in Minnesota summer temperature difference,
A
75f indoor minus 89 out door= 14 delta T
12
Q
winter temperature difference
A
70F indoor minus -12 out door=82 we add 70 with -12
13
Q
when calculating heat gain the direction of the house make difference
A
true
14
Q
A
