the 20 a field measurement of thermal comfort in
TRANSCRIPT
A FIELD MEASUREMENT OF THERMAL COMFORT IN
SEMI OUTDOOR SPACE IN HOT HUMID CLIMATE
Ai Siti Munawaroh1, Eka Damayanti1, Yusuf Agung Prasetyo1
1 Universitas Bandar Lampung
Urban Retrofitting: Building, Cities and Communities
in The Disruptive Era
The 20th
International Conference on
Sustainable
Environment
& Architecture
Supported By:Organized By:Presenter Affiliation:
INTRODUCTION & LITERATURE REVIEW
Thermal comfort is still important in measuring the quality of a place. Many studies have been conducted to measure the thermal comfort.
The latest study resulted that thermal comfort in semi outdoor space in hot humid climate which case study was Canteen of Universitas Bandar Lampung (UBL) have not meet the human comfort standard based on user perception. Although this canteen is semi outdoor space, but most of the users were feeling hot when fans were not using [15]. This paper aims to show a present study based on field measurement on that place.
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METHODS
(a)
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Spot Date Time Measurement
Outdoor 21 – 25 September 2020 08.00 AM – 04.00 PM Temperature, Relative Humidity and Air Velocity
Semi Outdoor A
Semi Outdoor B
Semi Outdoor C
Semi Outdoor D
21 – 25 September 2020
21 – 25 September 2020
21 – 25 September 2020
21 – 25 September 2020
08.00 AM – 04.00 PM
08.00 AM – 04.00 PM
08.00 AM – 04.00 PM
08.00 AM – 04.00 PM
Temperature, Relative Humidity and Air Velocity
Temperature, Relative Humidity and Air Velocity
Temperature, Relative Humidity and Air Velocity
Temperature, Relative Humidity and Air Velocity
Figure 1. (a) Floor plan and measurement spot; (b) Front view of measurement spot; (c) Data
collection; (d) Semi Outdoor A, B and C; (e) Semi Outdoor D; (f) Hygrometer, thermometer and
anemometer; (g) CBE thermal comfort tool
(b)
(d)
(c)
(f)
(g)
(e)
FINDINGS AND DISCUSSION
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Figure 2. (a) Air Temperature; (b) Relative Humidity; (c) Air Velocity
(c)
(b)
(a)
24.0
26.0
28.0
30.0
32.0
34.0
36.0
38.0
Air
Te
mp
era
ture
( C
)
Outdoor Temperature (ºC) Semi Outdoor Temperature (ºC) Spot A Semi Outdoor Temperature (ºC) Spot B Semi Outdoor Temperature (ºC) Spot C Semi Outdoor Temperature (ºC) Spot D
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
75.0
80.0
Rel
ativ
e H
um
idit
y (%
)
Outdoor Humidity (%) Semi Outdoor Humidity (%) Spot A Semi Outdoor Humidity (%) Spot B Semi Outdoor Humidity (%) Spot C Semi Outdoor Humidity (%) Spot D
0
0.5
1
1.5
2
2.5
3
3.5
Air
Vel
oci
ty (m
/s)
Outdoor Air Velocity (m/s) Semi Outdoor Air Velocity (m/s) Spot A Semi Outdoor Air Velocity (m/s) Spot B Semi Outdoor Air Velocity (m/s) Spot C Semi Outdoor Air Velocity (m/s) Spot D
FINDINGS AND DISCUSSION
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Figure 2. (a) Air Temperature; (b) Relative Humidity; (c) Air Velocity
(c)
(b)
(a)
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
Semi Outdoor A
Semi Outdoor B
Semi Outdoor C
Semi Outdoor D
Air Velocity Differences (%)
-2.5 -2 -1.5 -1 -0.5 0 0.5 1
Semi Outdoor A
Semi Outdoor B
Semi Outdoor C
Semi Outdoor D
Relative Humidity Differences (%)
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
Semi Outdoor A
Semi Outdoor B
Semi Outdoor C
Semi Outdoor D
Air Velocity Differences (%)
FINDINGS AND DISCUSSION
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Figure 3. (a) Predicted Mean Vote (PMV); (b) Thermal sensation;; (c)
Predicted Percentage of Dissatisfied (PPD); (d) PMV Differences
(a) (c)
(b)
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
1.80
2.00
Semi Outdoor A Semi Outdoor B Semi Outdoor C Semi Outdoor D
PM
V
Series1
Series2
(d)
CONCLUSIONS
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• Temperature of Semi Outdoor in some measurements resulted higher than Outdoor.
• Relative humidity in Semi Outdoor also was higher than Outdoor.• Air velocity in Semi Outdoor was lower than in Outdoor. • Thermal sensation that nearly neutral was in Outdoor. • Although thermal sensation in Semi Outdoor D was nearest to slightly
warm, but it was also closer to neutral than other Semi Outdoor spots.• Thermal sensation in Semi Outdoor A was near slightly warm and hot. • Semi Outdoor B and C was nearly warm. • In concluded, thermal sensation in Semi Outdoor without wall was
accepted than in Semi Outdoor with wall.
REFERENCES
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