Civil Engineering Reference
In-Depth Information
Fig. 5.11
Disturbances using strategy (A)
in this case, the disturbances come from the people inside the room. The test with
ˉ
=
008,
there were eight people in the room during most of the test. Hence, this is the main
reason for which the effort necessary to reach an optimal thermal comfort changes
from 0 to 100% in strategy (B) with
0
.
0065 was performed with five people in the room, while with
ˉ
=
0
.
008. At approximately 10:00, three
visitors came into the room increasing the indoor temperature, and therefore decreas-
ing thermal comfort. Thus, it was necessary to use a greater effort to compensate
this disturbance even reaching saturation. From 12:00 until the end of the test, these
people left the room and, for that reason, the fancoil velocity was decreased by the
controller over a value of 5%, that is, the initial value before visitors entered the
room. Finally, strategies (A) and (B) can be compared using the results of ISE crite-
rion. More specifically, looking at Table
5.2
, it can be observed that, according to ISE
criterion, strategy (A) with a weighting coefficient of 0
ˉ
=
0
.
.
3 is equivalent to strategy (B)
