Environmental Engineering Reference
In-Depth Information
A.4.2 E
P
V
E
VALUATION
OF
THE
RESUMED
ALUES
OF
NERGY
C
I
F
ONSUMPTION
OF
NDUSTRIAL
URNACES
1. As Table A.7 shows, the total energy consumption in the energy flow in
Japan in 1994 was 376
×
10
l in converted crude oil, of which industrial
9
use was 50.0% (188
×
10
l), public use 25.8% (97
×
10
l), and trans-
9
9
l). Next, the change of energy consumption
in the field of industry is shown in Table A.8 . According to the table, the
net energy consumption in 1994 was 172
portation use 24.1% (91
×
10
9
×
10
l. The input fuel in the
9
industrial field was 175
×
10
l, which is slightly less than that of the
9
above-mentioned value, 188
×
10
l.
9
2,3
2. Table A.9 shows the comparison of energy consumption of industrial
furnaces in Japan based on several sets of statistics. In Table A.9, the
current energy consumption of direct heating furnaces is 78.6
10 9 l in
converted crude oil. The value is about 4.7% larger than the 74.9
×
10 9 l
of this investigation. But this investigation does not include all heating
facilities (excluding foods, textile, paper pulp and other industries); con-
sequently, the value of assumed energy consumption, 75
×
10 9 l in con-
verted crude oil, for industrial furnaces would be acceptable.
×
A.4.3 C ONSIDERATION OF THE R ESULTS OF I NTERVIEWS
E FFICIENCY OF I NDUSTRIAL F URNACES
Table A.10 shows the average heat efficiency by capacity, types of furnaces, and
their total average values obtained from the results of the interviews shown in Table
A.4 . From Table A.10, the following conclusions can be drawn:
TABLE A.7
Final Energy Consumption in Japan in 1994
Iron and steel industry
44
Chemistry industry
48
Industry
Ceramics and soil industry
14
188
Paper and pulp industry
11
Final energy
(50.0)
Other manufacturing industry
43
consumption
Others
20
376 (100%)
Nonenergy
9
Social use
Domestic
52
97 (25.8)
Business
45
Transportation
Automobile
80
91 (24.1)
Others
11
 
 
 
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