การปรับสมดุลระบบปรับอากาศ
DESCRIPTION
สัมมนาวิชาการTRANSCRIPT
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- ( Low Pressure )- ( Multi-Zone )
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- ( Balancing Valve )
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- (Design Drawings)- (Shop Drawing)- (As-built Drawings)- (Specifications)-
+ 10%
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(Schematic diagram)
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- Pitot-tube Transverse
Average
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- Captured Hood
- Rotating Vane Anemometer
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- Pitot Tube with
Barometer
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- Balancing Instrument
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- wetted ultrasonic flow meter
- Turbine Flow meter
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( Low Pressure ) ( Multi-Zone )
(Variable Air Volume)
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( Low Pressure )
(Key Outlet)
- (Percent Of Design Flow %D)
-
%D = (M/D) x 100
M D
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( Low Pressure )
10%
10%
-
1
2
3
4
5
6
7
8
%D = (M/D) x 100
94 %
93 %
106 %
113 %
115 %
105 %
130 %
( D )
( M )
250 235
300 280
250 265
300 340
200 230
200 210
200 210
200 225 113 %
-
%D = (M/D) x 100
1 94 %
2 93 %
3 106 %
4 113 %
5 115 %
6 105 %
7 130 %
8
( D )
( M )
250 235
300 280
250 265
300 340
200 230
200 210
200 210
200 225 113 %
-
%D = (M/D) x 100
1 94 %
2 93 %
3 106 %
4 113 %
5 115 %
6 105 %
7 130 %
8
( D )
( M )
250 235
300 280
250 265
300 340
200 230
200 210
200 210
200 225 113 %
101 %
114 %
2 10%
3
-
%D = (M/D) x 100
1 96 %
2 95 %
3 100 %
4 113 %
5 115 %
6 105 %
7 130 %
8
( D )
( M )
250 239
300 285
250 250
300 340
200 230
200 210
200 210
200 225 113 %
101 %
105 %
-
%D = (M/D) x 100
1 96 %
2 95 %
3 100 %
4 113 %
5 115 %
6 105 %
7 130 %
8
( D )
( M )
250 239
300 285
250 250
300 340
200 230
200 210
200 210
200 225 113 %
101 %
105 %
119 % 4
-
%D = (M/D) x 100
1 99 %
2 98 %
3 103 %
4 100 %
5 115 %
6 105 %
7 130 %
8
( D )
( M )
250 248
300 295
250 258
300 300
200 230
200 210
200 210
200 225 113 %
101 %
105 %
102 %
-
%D = (M/D) x 100
1 99 %
2 98 %
3 103 %
4 100 %
5 115 %
6 105 %
7 130 %
8
( D )
( M )
250 248
300 295
250 258
300 300
200 230
200 210
200 210
200 225 113 %
101 %
105 %
102 %
-
%D = (M/D) x 100
1 99 %
2 98 %
3 103 %
4 100 %
5 121 %
6 110 %
7 115 %
8
( D )
( M )
250 248
300 295
250 258
300 300
200 242
200 220
200 230
200 238 119 %
101 %
105 %
102 %
110 %
105 %
108 %
-
%D = (M/D) x 100
1 99 %
2 98 %
3 103 %
4 100 %
5 121 %
6 110 %
7 115 %
8
( D )
( M )
250 248
300 295
250 258
300 300
200 242
200 220
200 230
200 238 119 %
112 %
-
%D = (M/D) x 100
1 101%
2 100 %
3 105 %
4 102 %
5 115 %
6 105 %
7 110 %
8
( D )
( M )
250 253
300 300
250 283
300 306
200 230
200 210
200 220
200 226 113%
101 %
105 %
102 %
110 %
105 %
108 %
105 %
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( Multi-Zone )
2SP2 = SP1 (%D22 / % D12)
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( Multi-Zone )
%D = (M/D) x 100
( D )
( M )
1 135%
2 120 %
3 95 %
4 81 %
1000 1350
1000 1200
1000 900
1000 810
117%
5 89 %1000 890 110%
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( Multi-Zone )
%D = (M/D) x 100
( D )
( M )SP
1 135%
2 120 %
3 95 %
4 81 %
1000 1350
1000 1200
1000 900
1000 810
1.20
0.92
0.83
1.00
5 89 %1000 890 0.79
SP 0.77
SP2 = 0.92 (872 / 952)= 0.77
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( Multi-Zone )
%D = (M/D) x 100
( D )
( M )SP
1 135%
2 120 %
3 87 %
4 82 %
1000 1350
1000 1200
1000 900
1000 810
1.20
0.77
0.85
1.00
5 89 %1000 890 0.79
-
( Multi-Zone )
%D = (M/D) x 100
( D )
( M )
1 136%
2 121 %
3 87 %
4 82 %
1000 1366
1000 1214
1000 870
1000 820
106%
5 90 %1000 900
139%
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Cv
-
+ 10%
-
+ 10%
-
6 oC
1 4 oC
2 6 oC
3 8 oC
6 oC 12 oC
6 oC 10 oC
6 oC 12 o C
6 oC 14 oC
100%
150%
75%
-
1
2
3
6 oC
4 oC
6 oC
8 oC
6 oC 12 oC
6 oC 10 oC
6 oC 12 o C
6 oC 14 oC
100%
150%
75%
133%
10%
-
1
2
3
6 oC
3.2 oC
7 oC
7 oC
6 oC 12 oC
6 oC 9.2 oC
6 oC 13 o C
6 oC 13 oC
85%
187%
85%
2 1 + 10%
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LOOP
+ 10 %
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LONGEST RUN
+10 %
+ 10%
-
+ 10%
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Proportional Method
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Compensated Method
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Compensated Method
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Compensated Method