KIGO ZEN dropped ceiling

INSTALLATION OF PANELS ABOVE PERFORATED
METAL DROP CEILING
COMPLEMENT TO TECHNICAL DOCUMENTATION
1 Overview
KIGO climate panels may be installed above a perforated or expanded metal drop ceiling. The
perforation rate or the open surface will affect thermal exchange of the climate panel. The metal
drop ceiling acts as a partial screen between the zone to be treated and the climate panel.
This type of climate panel installation
has successfully been in operation since
1993.
Part of the radiance from the panel will
succeed to cross the drop ceiling
through the open surface and the rest
will modify the temperature of the drop
ceiling. This will lead the drop ceiling to
reach an intermediary temperature
between the panel itself and the zone to
be treated.
A similar phenomenon occurs for the
convection part of the power
exchanged.
The values indicated below are indicative only as the geometry and the form of the perforations are
extremely variable and may have some minimal effect on these values.
In all cases, it is required that the drop ceiling be coated with a paint or a powder coating
with minimal thickness of 80 µm (3 thoughs) on each side!
We also recommend that you consult Energie Solaire SA in order to validate installation
detail and power reduction.
1 Reduction of power
KIGO panel power reduction percentage
The graph below indicates the percentage of reduction in power (in relation to power indicated in
the basic technical documentation) based on open surface as % of the metal ceiling. These values are
valid for a thermal sprayed metal
Power reduction (%) based on open surface of the metal ceiling
ceiling (both sides) with acoustic
Open section of the metal ceiling (%)
screen and a space between the
drop ceiling and the climate panels
smaller than 200 mm (8 inches).
Example: perforation Ø 1.5 mm
every 2.5 mm = open section 28% =
power reduction of 20%. For
conditions of 16-19°C/26°C (6066°F/80°F, the power will be reduced
by 20%; hence, the thermal
capability will be 80% of 126 W/m2
or 100 W/m2.
© Energie Solaire S.A.
March 2016
Page 2 / 3
2 Power table
2.1 Open section 25%
k
n
11.447
1.1203
Open section
25% métallique
Section
libre du: plafond
r
0.79
Smin_2
[m2]
2.6
4.2
6.0
4.8
2.3
3.7
5.3
4.2
6.0
8.1
3.0
7.0
9.5
1.9
3.0
4.2
3.3
4.7
6.2
3.7
5.3
7.0
HR max
[%]
273
273
273
291
273
273
273
291
291
291
310
310
310
273
273
273
291
291
291
310
310
310
POSE
DE BACS
METALLIQUES
KIGOAU-DESSUS
FLEX – mounting
above
drop ceiling PERFORES
k
n
11.447
1.1203
Open section
35% métallique
Section
libre du: plafond
r
0.84
Smin_2
[m2]
2.5
3.9
5.6
4.5
2.2
3.5
4.9
3.9
5.6
7.5
2.8
6.5
8.9
1.8
2.8
3.9
3.1
4.4
5.8
3.5
4.9
6.6
HR max
[%]
273
273
273
291
273
273
273
291
291
291
310
310
310
273
273
273
291
291
291
310
310
310
KÜHLUNG
RAFRAÎCHISSEMENT
POSE AU-DESSUS DE BACS METALLIQUES PERFORES
KIGO FLEX – mounting above drop ceiling
Ta
[°C]
25
25
25
25
26
26
26
26
26
26
26
26
26
28
28
28
28
28
28
28
28
28
Tiw
[°C]
15.0
15.0
15.0
16.0
15.0
15.0
15.0
16.0
16.0
16.0
17.0
17.0
17.0
15.0
15.0
15.0
16.0
16.0
16.0
17.0
17.0
17.0
Tow
[°C]
17.0
18.0
19.0
19.0
17.0
18.0
19.0
19.0
20.0
21.0
19.0
21.0
22.0
17.0
18.0
19.0
19.0
20.0
21.0
20.0
21.0
22.0
25%
∆Tw
[K]
2.0
3.0
4.0
3.0
2.0
3.0
4.0
3.0
4.0
5.0
2.0
4.0
5.0
2.0
3.0
4.0
3.0
4.0
5.0
3.0
4.0
5.0
∆Tm
[K]
9
8.5
8
7.5
10
9.5
9
8.5
8
7.5
8
7
6.5
12
11.5
11
10.5
10
9.5
9.5
9
8.5
P
[W/m2]
106
99
93
86
119
113
106
99
93
86
93
80
74
146
140
133
126
119
113
113
106
99
Ps
Qw
[W/m2/K] [l/h/m2]
11.8
45.7
11.7
28.6
11.6
20.0
11.5
24.8
11.9
51.4
11.9
32.4
11.8
22.8
11.7
28.6
11.6
20.0
11.5
14.9
11.6
40.0
11.4
17.2
11.3
12.7
12.2
63.0
12.1
40.1
12.1
28.6
12.0
36.2
11.9
25.7
11.9
19.4
11.9
32.4
11.8
22.8
11.7
17.1
Smin_D4
[m2]
1.8
2.8
4.0
3.2
1.6
2.5
3.5
2.8
4.0
5.4
2.0
4.6
6.3
1.3
2.0
2.8
2.2
3.1
4.1
2.5
3.5
4.7
KÜHLUNG
RAFRAÎCHISSEMENT
2.1 Open section 35%
Ta
[°C]
25
25
25
25
26
26
26
26
26
26
26
26
26
28
28
28
28
28
28
28
28
28
Tiw
[°C]
15.0
15.0
15.0
16.0
15.0
15.0
15.0
16.0
16.0
16.0
17.0
17.0
17.0
15.0
15.0
15.0
16.0
16.0
16.0
17.0
17.0
17.0
© Energie Solaire S.A.
Tow
[°C]
17.0
18.0
19.0
19.0
17.0
18.0
19.0
19.0
20.0
21.0
19.0
21.0
22.0
17.0
18.0
19.0
19.0
20.0
21.0
20.0
21.0
22.0
35%
∆Tw
[K]
2.0
3.0
4.0
3.0
2.0
3.0
4.0
3.0
4.0
5.0
2.0
4.0
5.0
2.0
3.0
4.0
3.0
4.0
5.0
3.0
4.0
5.0
∆Tm
[K]
9
8.5
8
7.5
10
9.5
9
8.5
8
7.5
8
7
6.5
12
11.5
11
10.5
10
9.5
9.5
9
8.5
P
[W/m2]
113
106
99
92
127
120
113
106
99
92
99
85
79
156
149
142
135
127
120
120
113
106
March 2016
Ps
Qw
[W/m2/K] [l/h/m2]
12.6
48.8
12.5
30.5
12.4
21.4
12.3
26.5
12.7
54.9
12.7
34.6
12.6
24.4
12.5
30.5
12.4
21.4
12.3
15.9
12.4
42.8
12.2
18.4
12.1
13.6
13.0
67.3
13.0
42.8
12.9
30.5
12.8
38.7
12.7
27.4
12.7
20.7
12.7
34.6
12.6
24.4
12.5
18.3
Smin_D4
[m2]
1.6
2.6
3.7
3.0
1.5
2.3
3.3
2.6
3.7
5.0
1.9
4.3
5.9
1.2
1.9
2.6
2.1
2.9
3.9
2.3
3.3
4.4
Page 3 / 3