performance data linear slot diffusers performance data · linear slot diffusers products testing...
TRANSCRIPT
05
LINEAR SLOT DIFFUSERS
PERFORMANCE DATA
507510012515017520050100150200250300350100150200250300350400150200250300350400450200250300350400450500250300350400450500600
0.082
0.221
0.321
0.402
0.490
0.578
0.0230.0520.0920.1440.2100.2850.3770.0080.0300.0670.1200.1870.2700.3700.0140.0310.0550.0860.1240.1680.2200.0190.0330.0520.0750.1020.1330.1700.0220.0340.0490.0670.0870.1100.1360.0240.0350.0480.0620.0790.0980.140
1
2
3
4
5
6
0.0360.0810.1440.2250.3280.4450.5890.0130.0470.1050.1880.2920.4220.5780.0220.0480.0860.1340.1940.2630.3440.0300.0520.0810.1170.1590.2080.2660.0340.0530.0770.1050.1360.1720.2130.0380.0550.0750.0970.1230.1530.219
123557812345671234568134567823456782345678
35789
101113467892356789245678944567893456789
------------------------------------------
------------------------------------------
------------------------------------------
------------------------------------------
------------------------------------------
------------------------------------------
579111212142468910113468910115677891067889910667891011
123456711134561124567123445612345671234567
<15162329364046
<15172335414954
<15172331384348
<15172328343641
<15162026303439
<15161923262939
0.066
0.175
0.254
0.320
0.389
0.455
SLO
TS
A k
/ m
(Ft2 /
m)
A k
/ m
(Ft2 /
m)
0.102
0.270
0.393
0.495
0.602
0.708
A k
/ m
(Ft2 /
m)
PS
(IWG)PS
(IWG)
0.0100.0230.0410.0610.0860.1130.1500.0060.0120.0390.0820.1260.1940.2660.0090.0240.0380.0490.0810.1090.1420.0090.0200.0360.0430.0770.1020.1210.0130.0210.0390.0510.0690.0740.1110.0170.0260.0330.0480.0580.0670.106
PS
(IWG)Throw
(Ft)Throw
(Ft)
SLOT WIDTH3/5" 4/5" 1"
NC
<15152227333641
<15162232374347
<15162229343842
<15162226313337
<15152025283135
<15151822252735
NC
<15<15<1518232630
<15<151722263134
<15<151620242730
<15<15<1518222326
<15<151517192225
<15<15<1516171825
NC
CFMPER
METER
356789
1011356781245678234567833456782345678
5791011121322578910236789105566789566788955678910
123345611123451123456112344511234561123456
Throw(Ft)
355678911245671134567123456722345671234567
5789
10111212367891256789234567845567783456789
VERTICAL DISCHARGE SLD / RLD - SUPPLY
CFM Per Meter : Air volume in cubic feet per 1 meter length
Ak : Effective face area in square feet per meter
Ps : Static pressure in inch water gauge
Th : Throw in feet NC : Noise Criteria
SYMBOLS* Supply* Vertical Discharge flow pattern* Noise Criteria Values are based on (10 dB) room attenuation.* Damper is fully open* The tested specimens were of 1 meter length
CONDITIONS* The large throw values are based on the minumum terminal velocity of 50 fpm.* The middle throw values are based on the middle terminal velocity of 100 fpm* The small throw values are based on the maximum terminal velocity of 150 fpm.
NOTES
04
PERFORMANCE DATA
LINEAR SLOT DIFFUSERS
PRODUCTS TESTING
The following tables include the results of tests conducted on three linear slot diffusers. The test result Include
Noise Criteria (NC), static pressure versus air flow, throw and Ak. The diffusers were selected and supplied by
Beta in October 1991. The extrapolations and interpolations were made to cover a full range of sizes and
parameters according to ETL testing laboratories Inc. who made the tests.
TEST METHOD
The air diffusers were tested in accordance with the Air diffusion council test code for grilles, registers and
diffusers No. ADC 1062:GRD-84, the test was conducted in ETL testing laboratories.
The diffusers were installed in the ADC facility and supplied with measured volume of air. The static pressure was
measured (1-1.5) duct diameters upstream of the diffuser inlet.
Acoustical data was obtained employing Bruel and Kjaer digital frequency analyzers, and analyzed by computer.
Sound power levels were plotted on a graph of noise criteria curves which are in ADC codes.
NOTES
05
LINEAR SLOT DIFFUSERS
PERFORMANCE DATA
5075
10012515017520050
100150200250300350100150200250300350400150200250300350400450200250300350400450500250300350400450500600
0.082
0.221
0.321
0.402
0.490
0.578
0.0230.0520.0920.1440.2100.2850.3770.0080.0300.0670.1200.1870.2700.3700.0140.0310.0550.0860.1240.1680.2200.0190.0330.0520.0750.1020.1330.1700.0220.0340.0490.0670.0870.1100.1360.0240.0350.0480.0620.0790.0980.140
1
2
3
4
5
6
0.0360.0810.1440.2250.3280.4450.5890.0130.0470.1050.1880.2920.4220.5780.0220.0480.0860.1340.1940.2630.3440.0300.0520.0810.1170.1590.2080.2660.0340.0530.0770.1050.1360.1720.2130.0380.0550.0750.0970.1230.1530.219
123557812345671234568134567823456782345678
35789101113467892356789245678944567893456789
------------------------------------------
------------------------------------------
------------------------------------------
------------------------------------------
------------------------------------------
------------------------------------------
579
1112121424689
101134689
1011567789
10678899
1066789
1011
123456711134561124567123445612345671234567
<15162329364046
<15172335414954
<15172331384348
<15172328343641
<15162026303439
<15161923262939
0.066
0.175
0.254
0.320
0.389
0.455
SLO
TS
A k
/ m
(Ft2 /
m)
A k
/ m
(Ft2 /
m)
0.102
0.270
0.393
0.495
0.602
0.708
A k
/ m
(Ft2 /
m)
PS
(IWG)PS
(IWG)
0.0100.0230.0410.0610.0860.1130.1500.0060.0120.0390.0820.1260.1940.2660.0090.0240.0380.0490.0810.1090.1420.0090.0200.0360.0430.0770.1020.1210.0130.0210.0390.0510.0690.0740.1110.0170.0260.0330.0480.0580.0670.106
PS
(IWG)Throw
(Ft)Throw
(Ft)
SLOT WIDTH3/5" 4/5" 1"
NC
<15152227333641
<15162232374347
<15162229343842
<15162226313337
<15152025283135
<15151822252735
NC
<15<15<1518232630
<15<151722263134
<15<151620242730
<15<15<1518222326
<15<151517192225
<15<15<1516171825
NC
CFMPER
METER
3567891011356781245678234567833456782345678
579
10111213225789
10236789
1055667895667889556789
10
123345611123451123456112344511234561123456
Throw(Ft)
355678911245671134567123456722345671234567
5789
10111212367891256789234567845567783456789
VERTICAL DISCHARGE SLD / RLD - SUPPLY
CFM Per Meter : Air volume in cubic feet per 1 meter length
Ak : Effective face area in square feet per meter
Ps : Static pressure in inch water gauge
Th : Throw in feet NC : Noise Criteria
SYMBOLS* Supply* Vertical Discharge flow pattern* Noise Criteria Values are based on (10 dB) room attenuation.* Damper is fully open* The tested specimens were of 1 meter length
CONDITIONS* The large throw values are based on the minumum terminal velocity of 50 fpm.* The middle throw values are based on the middle terminal velocity of 100 fpm* The small throw values are based on the maximum terminal velocity of 150 fpm.
NOTES
04
PERFORMANCE DATA
LINEAR SLOT DIFFUSERS
PRODUCTS TESTING
The following tables include the results of tests conducted on three linear slot diffusers. The test result Include
Noise Criteria (NC), static pressure versus air flow, throw and Ak. The diffusers were selected and supplied by
Beta in October 1991. The extrapolations and interpolations were made to cover a full range of sizes and
parameters according to ETL testing laboratories Inc. who made the tests.
TEST METHOD
The air diffusers were tested in accordance with the Air diffusion council test code for grilles, registers and
diffusers No. ADC 1062:GRD-84, the test was conducted in ETL testing laboratories.
The diffusers were installed in the ADC facility and supplied with measured volume of air. The static pressure was
measured (1-1.5) duct diameters upstream of the diffuser inlet.
Acoustical data was obtained employing Bruel and Kjaer digital frequency analyzers, and analyzed by computer.
Sound power levels were plotted on a graph of noise criteria curves which are in ADC codes.
NOTES
07
LINEAR SLOT DIFFUSERS
PERFORMANCE DATA
SLOT WIDTH
1
2
3
4
5
6
75
100
125
150
175
150
175
200
250
300
200
250
300
350
450
300
350
400
500
600
300
400
500
600
700
400
500
600
700
800
0.133
0.234
0.359
0.544
0.734
0.156
0.228
0.283
0.438
0.625
0.156
0.244
0.352
0.478
0.794
0.250
0.339
0.438
0.661
0.981
0.175
0.309
0.484
0.695
0.945
0.244
0.380
0.547
0.742
0.972
SLOTSCFM PERMETER
Neg. PS
(IWG)
0.085
0.150
0.230
0.348
0.470
0.100
0.146
0.181
0.280
0.400
0.100
0.156
0.225
0.306
0.508
0.160
0.217
0.280
0.423
0.628
0.112
0.198
0.310
0.445
0.605
0.156
0.243
0.350
0.475
0.622
Neg. PS
(IWG)
0.054
0.096
0.147
0.223
0.301
0.064
0.093
0.116
0.179
0.256
0.064
0.100
0.144
0.196
0.325
0.102
0.139
0.179
0.271
0.402
0.072
0.127
0.198
0.285
0.387
0.100
0.156
0.224
0.304
0.398
Neg. PS
(IWG)
19
26
35
44
50
19
26
31
40
48
20
28
34
41
49
23
30
35
43
50
21
30
38
43
50
24
31
39
44
50
NC
19
25
32
39
44
19
25
29
36
42
20
26
31
37
43
22
28
32
38
44
21
28
34
38
44
23
29
35
39
44
NC
<15
17
22
28
32
<15
17
20
26
30
<15
18
22
26
31
<15
19
22
27
32
<15
19
24
27
32
15
20
25
28
32
NC
3/5" 4/5" 1"
SLD / RLD - RETURN
CFM Per Meter : Air volume in cubic feet per 1 meter lengthPs : Negative static pressure in inch water gaugeNC : Noise Criteria
SYMBOLS* Return* Noise Criteria Values are based on (10 dB) room attenuation.* Damper is fully open* The tested specimens were of 1 meter length
CONDITIONS
06
PERFORMANCE DATA
LINEAR SLOT DIFFUSERS
0.059
0.150
0.240
0.324
0.410
0.494
1
2
3
4
5
6
0.046
0.119
0.191
0.257
0.323
0.389
SLO
TS
A k
/ m
(Ft2 /
m)
A k
/ m
(Ft2 /
m)
0.076
0.185
0.297
0.399
0.508
0.611
A k
/ m
(Ft2 /
m)
PS
(IWG)PS
(IWG)PS
(IWG)Throw
(Ft)Throw
(Ft)
SLOT WIDTH3/5" 4/5" 1"
NC NC NC
CFMPER
METER
469131751012182359131822610131823711141923811151923
8101421268172228331118232934151822283416202329331620243034
1357103347103458123458104681011468911
Throw(Ft)
3581215591116215812162059111621610121721710131721
------------------------------
------------------------------
79
1319237
152025301015212631131620253114182126301418212731
5075
10012515050
100150200250100150200250300150200250300350200250300350400250300350400450
0.0480.1090.1950.3050.4380.0160.0630.1410.2470.3910.0310.0690.1220.1910.2910.0390.0690.1080.1560.2110.0530.0810.1170.1590.2090.0630.0890.1220.1590.203
1469143561014467101556710146810131568101113
------------------------------
------------------------------
471015196111320256101520247111520258131621251012172125
8111523299192530351220253236171924303718222532361823273337
172636434918203445511624344348192633394521283338442330343943
0.0310.0700.1250.1950.2800.0100.0400.0900.1580.2500.0200.0440.0780.1220.1860.0250.0440.0690.1000.1350.0340.0520.0750.1020.1340.0400.0570.0780.1020.130
13581234581235691345691257911135791012
------------------------------
------------------------------
1825333843
<15203140451723313842192530354021263034392228313538
0.0200.0450.0800.1250.1790.0060.0260.0580.1010.1600.0130.0280.0500.0780.1190.0160.0280.0440.0640.0860.0220.0330.0480.0650.0860.0260.0360.0500.0650.083
<1517232731
<15<15222933
<1515222730
<1517212529
<1518212428
<1519222527
HORIZONTAL DISCHARGE SLD / RLD - SUPPLY
CFM Per Meter : Air volume in cubic feet per 1 meter length
Ak : Effective face area in square feet per meter
Ps : Static pressure in inch water gauge
Th : Throw in feet NC : Noise Criteria
SYMBOLS* Supply* Horizontal Discharge flow pattern* Noise Criteria Values are based on (10 dB) room attenuation.* Damper is fully open* The tested specimens were of 1 meter length
CONDITIONS* The large throw values are based on the minumum terminal velocity of 50 fpm.* The middle throw values are based on the middle terminal velocity of 100 fpm* The small throw values are based on the maximum terminal velocity of 150 fpm.
NOTES
07
LINEAR SLOT DIFFUSERS
PERFORMANCE DATA
SLOT WIDTH
1
2
3
4
5
6
75
100
125
150
175
150
175
200
250
300
200
250
300
350
450
300
350
400
500
600
300
400
500
600
700
400
500
600
700
800
0.133
0.234
0.359
0.544
0.734
0.156
0.228
0.283
0.438
0.625
0.156
0.244
0.352
0.478
0.794
0.250
0.339
0.438
0.661
0.981
0.175
0.309
0.484
0.695
0.945
0.244
0.380
0.547
0.742
0.972
SLOTSCFM PERMETER
Neg. PS
(IWG)
0.085
0.150
0.230
0.348
0.470
0.100
0.146
0.181
0.280
0.400
0.100
0.156
0.225
0.306
0.508
0.160
0.217
0.280
0.423
0.628
0.112
0.198
0.310
0.445
0.605
0.156
0.243
0.350
0.475
0.622
Neg. PS
(IWG)
0.054
0.096
0.147
0.223
0.301
0.064
0.093
0.116
0.179
0.256
0.064
0.100
0.144
0.196
0.325
0.102
0.139
0.179
0.271
0.402
0.072
0.127
0.198
0.285
0.387
0.100
0.156
0.224
0.304
0.398
Neg. PS
(IWG)
19
26
35
44
50
19
26
31
40
48
20
28
34
41
49
23
30
35
43
50
21
30
38
43
50
24
31
39
44
50
NC
19
25
32
39
44
19
25
29
36
42
20
26
31
37
43
22
28
32
38
44
21
28
34
38
44
23
29
35
39
44
NC
<15
17
22
28
32
<15
17
20
26
30
<15
18
22
26
31
<15
19
22
27
32
<15
19
24
27
32
15
20
25
28
32
NC
3/5" 4/5" 1"
SLD / RLD - RETURN
CFM Per Meter : Air volume in cubic feet per 1 meter lengthPs : Negative static pressure in inch water gaugeNC : Noise Criteria
SYMBOLS* Return* Noise Criteria Values are based on (10 dB) room attenuation.* Damper is fully open* The tested specimens were of 1 meter length
CONDITIONS
06
PERFORMANCE DATA
LINEAR SLOT DIFFUSERS
0.059
0.150
0.240
0.324
0.410
0.494
1
2
3
4
5
6
0.046
0.119
0.191
0.257
0.323
0.389
SLO
TS
A k
/ m
(Ft2 /
m)
A k
/ m
(Ft2 /
m)
0.076
0.185
0.297
0.399
0.508
0.611
A k
/ m
(Ft2 /
m)
PS
(IWG)PS
(IWG)PS
(IWG)Throw
(Ft)Throw
(Ft)
SLOT WIDTH3/5" 4/5" 1"
NC NC NC
CFMPER
METER
469131751012182359131822610131823711141923811151923
8101421268172228331118232934151822283416202329331620243034
1357103347103458123458104681011468911
Throw(Ft)
3581215591116215812162059111621610121721710131721
------------------------------
------------------------------
791319237152025301015212631131620253114182126301418212731
507510012515050100150200250100150200250300150200250300350200250300350400250300350400450
0.0480.1090.1950.3050.4380.0160.0630.1410.2470.3910.0310.0690.1220.1910.2910.0390.0690.1080.1560.2110.0530.0810.1170.1590.2090.0630.0890.1220.1590.203
1469143561014467101556710146810131568101113
------------------------------
------------------------------
471015196111320256101520247111520258131621251012172125
8111523299192530351220253236171924303718222532361823273337
172636434918203445511624344348192633394521283338442330343943
0.0310.0700.1250.1950.2800.0100.0400.0900.1580.2500.0200.0440.0780.1220.1860.0250.0440.0690.1000.1350.0340.0520.0750.1020.1340.0400.0570.0780.1020.130
1358123458123569
134569
12579
1113579
1012
------------------------------
------------------------------
1825333843
<15203140451723313842192530354021263034392228313538
0.0200.0450.0800.1250.1790.0060.0260.0580.1010.1600.0130.0280.0500.0780.1190.0160.0280.0440.0640.0860.0220.0330.0480.0650.0860.0260.0360.0500.0650.083
<1517232731
<15<15222933
<1515222730
<1517212529
<1518212428
<1519222527
HORIZONTAL DISCHARGE SLD / RLD - SUPPLY
CFM Per Meter : Air volume in cubic feet per 1 meter length
Ak : Effective face area in square feet per meter
Ps : Static pressure in inch water gauge
Th : Throw in feet NC : Noise Criteria
SYMBOLS* Supply* Horizontal Discharge flow pattern* Noise Criteria Values are based on (10 dB) room attenuation.* Damper is fully open* The tested specimens were of 1 meter length
CONDITIONS* The large throw values are based on the minumum terminal velocity of 50 fpm.* The middle throw values are based on the middle terminal velocity of 100 fpm* The small throw values are based on the maximum terminal velocity of 150 fpm.
NOTES