104
4 Results and Discussion
Drop in temp. Deg.C
Control (Mean-Ambient)
14.0
12.0
PCM fabric material (Mean-Ambient)
Drop in temp.
10.0
8.0
6.0
4.0
2.0
0.0
0:00:00
0:07:12
0:14:24
0:21:36
0:28:48
0:36:00
0:43:12
0:50:24
0:57:36
1:04:48
-2.0
-4.0
-6.0
Time:h:mm:ss
Fig. 4.28 Comparison graph for PCM fabric material at 55 kph speed
Drop in temp. Deg.C
Control (Mean-Ambient)
14.0
12.0
PCM composite material (Mean-Ambient)
Drop in temp.
10.0
8.0
6.0
4.0
2.0
0.0
0:00:00
0:07:12
0:14:24
0:21:36
0:28:48
0:36:00
0:43:12
0:50:24
0:57:36
1:04:48
-2.0
-4.0
-6.0
Time:h:mm:ss
Fig. 4.29 Comparison graph for PCM composite material at 55 kph speed
curve, which was shown in the negative scale as drop in temperature for the duration
of the experiment. The experiments were carried out at 55 and 75 kph speeds for
each of the above PCM materials in the closed-circuit wind tunnel.