An energy audit of 24 office buildings was conducted in Tianjin, including basic information of buildings, building energy system and energy bills. The investigation results showed that the average intensity of energy consumption in office buildings in Tianjin accounts for 161.51 kW·h/(m2·a). By breaking the energy consumption down into detailed items, it was found that the heating system consumed the highest amount of energy (46.6%), followed by equipment (35.9%), cooling system (11%) and lighting system (6.69%). The main factors for office building energy consumption were found and some feasible measures to save energy were proposed.
Corresponding Author(s):
LI Junlong,Email:lijunlong2006315@163.com
引用本文:
. Survey and analysis of energy consumption in office buildings in Tianjin[J]. Frontiers in Energy, 2013, 7(1): 69-74.
Junlong LI, Huan ZHANG, Shijun YOU, Zhenhui XIE. Survey and analysis of energy consumption in office buildings in Tianjin. Front Energ, 2013, 7(1): 69-74.
Heat consumption ofmunicipal heating per unit area/(GJ·m-2·a-1)
J1
47203.00
8856804
187.63
0
a
0.27
J2
29796.48
5319241
178.52
0
a
0.24
J3
24589.81
4221684
171.68
1
a
0.22
J4
22000.00
2760293
125.47
1
b
-
J5
16585.00
3171257
191.21
0
a
0.23
J6
13000.00
1889680
145.36
2
c
-
J7
12762.00
2988530
234.17
3
d
-
J8
11796.00
2814147
238.57
3
d
-
J9
11000.00
1730106
157.28
1
a
0.35
J10
9874.07
1590778
161.11
1
a
0.27
J11
9397.80
1283117
136.53
1
a
0.26
J12
9240.00
1371339
148.41
1
a
0.30
J13
9000.00
1118226
124.25
1
a
0.28
J14
8959.00
1356607
151.42
1
a
0.23
J15
8750.68
1363511
155.82
0
a
0.26
J16
8525.00
1447655
169.81
3
a
0.25
J17
8000.00
1017413
127.18
1
a
0.23
J18
7875.26
1300796
165.17
0
a
0.28
J19
6400.00
1025875
160.29
0
a
0.29
J20
5570.00
745084
133.77
1
a
0.21
J21
5411.00
745388
137.75
1
a
0.26
J22
5000.00
764849
152.97
1
a
0.25
J23
4000.00
630757
157.69
1
a
0.37
J24
3780.00
620670
164.20
1
a
0.27
Tab.2
Fig.1
Energy type
Carbon emissions factor
Electricity/(kgCO2·kW-1·h-1)
0.7495
Gas/(kgCO2·m-3)
1.994
Diesel/(kgCO2·kg-1)
3.164
Standard coal/(kgCO2·kg-1)
2.46
Coal/(kgCO2·kg-1)
1.980
Tab.3
Fig.2
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