Research on the mitigation of the urban heat island phenomenon by external insulation (Part 1) The cooling performance evaluation for the nocturnal urban atmosphere
provided by the reduced heat capacity of building finishes SHIBAIKE Hideki
UHI 1
1
UHI)
UHI
UHI
( )
( )
( )
UHI 2.
(1).
(W/m2)
(1)
1 2
(1)
1 2
(1) 1 2
2
, (2).
(3), COP
, Fraunhofer WUFI Pro 5.1 Windows
1)
APF 4/8
4/15 04/16 11/08
8:00 20:00 17:30-05:30
€
aJ
€
εE
n€
R
Ot€
R
W€
a
€
ε
€
R
WQ
d
Q
dQ
nQ
nη
dη
nη
d= Q
d( aJ −ε En) ηn= Q
n ( aJ − ε En)
= Q
n( aJ − ε En)
Q
dQ
nQ
d= Q
d+
Q
d( 1+1 ψ ) Q n= Q
n+ Q
n( 1+1 ψ )
ψ
*
aJ −εE
n= R
WR
Ot+ R
W( aJ −ε En)
+ R
OtR
Ot+ R
W( aJ −ε En)
日本建築学会大会学術講演梗概集
(北海道) 2013 年 8 月
― 911 ―
40448
テキスト テキスト
資料A1 日本建築学会学会大会近学術講演梗概集(2013年8月)
テキスト
* ( ) * Assoc. Prof., Faculty of Archit. & Design, Kyoto Institute of Technology, Dr. (Eng.)
.
2)
.
HITEC
( )
45W/m2 15W/m2
23 (
EIFS
EIVCS
CIFS
Figure.1 Three kinds of typical model assemblies for walls
) RC
0.43W/ K 0.86W/ K
! ( )
!
R.
1) Künzel, H.M. Simultaneous heat and moisture transport in building components Dissertation. Stuttgart: Univ. of Stuttgart 1994
2) 12
632 pp.1209-1215 2008
3) Shibaike, H. Cooling effect for the nocturnal urban atmosphere provided by the reduced heat capacity of exterior finishes on buildings and pavements, 6th Japanese-German Meeting on Urban Climatology, 2012.
Table.1 Simplified Heat Release Amounts for Day Time and Night Time (W/m2)
Models, Orientation
Average for Whole Period
Diurnal Average 05:30 – 17:30
Nocturnal Average
EIFS, West 51.0 94.8 7.1
EIVCS, West 51.1 66.9 35.3
CIFS, West 62.2 110.2 14.1
EIFS, South 52.6 100.9 4.3
EIVCS, South 52.8 174.0 31.5
CIFS, South 64.4 120.2 8.5
a=0.6 for EIFS and CIFS and a=0.68 for EIVCS. =0.9 and COP=4.5.
Figure 2: Temporal profiles for heat release amounts including HVAC energy consumptions