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SET-S

In this chapter the SET-S modules delivered with CadnaA are described. Regarding the access of this modules for industrial sources refer to Common Input Data, local SET-S modules.

Note

Further SET-S modules in the global library are available with the option SET only.

Ventilators

Sound Power Level

ID Name Sound Power Level
LW in dB (lin)
Validity Range
[Standard Deviation]
CLM_DACHRADIAL radial roof ventilator all models:
LW = 37 + 10 lg(q) + 20 lg(Δp) - s
0,1 m³/s < q < 10 m³/s
20 Pa < Δp < 200 Pa
[2 dB]
CLM_WANDAXIAL wall fan - axial
FAN_RADIAL_R radial fan with blades bent backwards 0,4 m³/s < q < 81 m³/s
200 Pa < Δp < 8000 Pa
[2 dB]
FAN_RADIAL_V radial fan with blades bent forwards (compressor drum) 0,1 m³/s < q < 2,3 m³/s
215 Pa < Δp < 2100 Pa
[2 dB]
FAN_AXIAL axial fan 1 m³/s < q < 620 m³/s
60 Pa < Δp < 8000 Pa
[2 dB]

with

  • q [m³/s]: volume flow
  • Δp [Pa]: total pressure increase / pressure loss

Attenuations

Attenuation s (dB) at Frequency f (Hz) *1) 31.5 63 125 250 500 1000 2000 4000 8000
radial roof ventilator, casing 40,3 29,4 20,3 13,8 10,7 11,5 14,3 19,1 27,8
wall fan - axial, casing 42,5 32,5 21,9 14,6 9,2 7,5 8,7 12,7 21,7
radial fan with blades bent backwards
casing
45,0 31,0 23,0 20,0 22,0 26,0 32,0 38,0 45,0
radial fan with blades bent forwards (compressor drum), casing 45,0 29,0 24,0 23,0 24,0 27,0 32,0 38,0 47,0
axial fan, casing 45,0 36,0 26,0 20,0 17,0 17,0 20,0 25,0 34,0

*1) relative spectra A-weighted

Literature

  • VDI-guideline 2081: Geräuscherzeugung und Lärmminderung in Raumlufttechnischen Anlagen, 2001-07

Diesel Engines

Sound Power Level

ID Name Sound Power Level
LWA in dB(A)
Validity Range
[Standard Deviation]
MOT_DIESEL_SD_TL Diesel engine with turbocharger and exhaust gas silencer (without exhaust noise) all models:
LWA = 103,0 + 10,8·lg (P) - s
100 kW < P < 5000 kW
[2 dB]
MOT_DIESEL_TL Diesel engine with turbocharger, exhaust noise and induction noise separately
MOT_DIESEL_SD Diesel engine without turbocharger and exhaust gas silencer (without exhaust noise)
MOT_DIESEL Diesel engine without turbocharger, exhaust noise and suction noise separately

with

  • P [kW]: nominal power

Attenuations

Attenuation s (dB) at Frequency f (Hz) *1) 31.5 63 125 250 500 1000 2000 4000 8000
Without turbocharger, without silencer, radiation by casing 71,7 54,5 40,4 28,9 23,5 20,3 19,1 24,3 31,4
With turbocharger, without silencer, radiation by casing 69,2 54,8 43,5 34,7 29,3 26,1 21,8 18,9 21,0
Without turbocharger, with exhaust gas silencer, radiation by casing 71,7 54,5 40,4 28,9 23,5 20,3 19,1 24,3 31,4
With turbocharger, with exhaust gas silencer, radiation by casing 69,2 54,8 43,5 34,7 29,3 26,1 21,8 18,9 21,0

*1) relative spectra

Literature

  • VDI-guideline 3753-1: Emissionskennwerte technischer Schallquellen, Stationäre Verbrennungsmaschinen, 1997-10

Electric Motors

Sound Power Level

ID Name Sound Power Level
LWA in dB(A)
Validity Range
[Standard Deviation]
MOT_E_750 standard motor 50 Hz, n = 750 rpm LWA = 59,0 + 12,0 · lg (P) - s 1,1 kW < P < 1000 kW
[6 dB]
MOT_E_1000 standard motor 50 Hz power frequency, n = 1000 rpm LWA = 59,0 + 12,0 · lg (P) - s
MOT_E_1500 standard motor 50 Hz power frequency, n = 1500 rpm LWA = 58,5 + 13,5 · lg (P) - s
MOT_E_3000 standard motor 50 Hz power frequency, n = 3000 rpm LWA = 68,5 + 11,5 · lg (P) - s
MOT_E_500_1500 frequency controlled motor, 500 < n < 1500 rpm LWA = 82,0 + 10,0 · lg (P) - s 1,1 kW < P < 3000 kW
[6 dB]
MOT_E_1500_3000 frequency controlled motor, 1500 < n < 3000 rpm LWA = 82,0 + 13,0 · lg (P) - s

with

  • P [kW]: nominal power

Attenuations

Attenuation s (dB) at Frequency f (Hz) *1) 31.5 63 125 250 500 1000 2000 4000 8000
casing (all types) 49,7 37,7 21,7 11,7 6,7 4,7 5,7 10,7 16,7

*1) relative spectra

Literature

  • VDI-guideline 3736, Emissionskennwerte technischer Schallquellen, umlaufende elektrische Maschinen, Asynchronmaschinen, 1984-04
  • manufacturer data

Pumps

Sound Power Level

ID Name Sound Power Level
LWA in dB(A)
Validity Range
[Standard Deviation]
PMP_KREISEL centrifugal pump spiral casing general, incl. connected pipes LWA = 71,0 + 13,5 · lg (P) - s 0 kW < P < 2000 kW [4 dB]
PMP_CHEMIE chemical normal pump LWA = 65,0 + 12,5 · lg (P) - s 0 kW < P < 10000 kW [2 dB]
PMP_PROPELLER propeller pump - pipe casing LWA = 74,0 + 9,0 · lg (P) - s 0 kW < P < 5000 kW [2 dB]
PMP_KREISKOLB rotary piston pump LWA = 84,0 + 11,0 · lg (P) - s 0 kW < P < 10 kW [3 dB]
PMP_REIHENKOLB series piston pump LWA = 78,0 + 10,0 · lg (P) - s 0 kW < P < 1000 kW [3 dB]
PMP_MEMBRAN diaphragm pump LWA = 78,0 + 9,0 · lg (P) - s 0 kW < P < 100 kW [3 dB]
PMP_SPINDEL screw pump LWA = 78,0 + 11,0 · lg (P) - s 0 kW < P < 1000 kW [3 dB]
PMP_SPEISE feed-water pump LWA = 73,0 + 10,0 · lg (P) - s 0 kW < P < 10000 kW [2 dB]
PMP_A_ZAHNRAD external gear pump LWA = 78,0 + 11,0 · lg (P) - s 0 kW < P < 100 kW [3 dB]
PMP_KONDENSAT condensate pump LWA = 85,0 + 10,0 · lg (P) - s 0 kW < P < 1000 kW [4 dB]
PMP_SPALTROHR canned motor pump LWA = 60,0 + 12,0 · lg (P) - s 0 kW < P < 100 kW [2 dB]
PMP_TAUCH submerged pump LWA = 65,0 + 11,8 · lg (P) - s 0 kW < P < 100 kW [2 dB]
PMP_MAGNET magnetic clutch pump LWA = 71,0 + 11,0 · lg (P) - s 0 kW < P < 100 kW [2 dB]
PMP_HYDRO hydraulic pump (swash plate) LWA = 62 + 22 · lg (P) + 8 · lg (n) - 11 · lg (p) - s 0 kW < P < 100 kW
10 1/min < n < 3 000 1/min
5 bar < p < 300 bar [2,5 dB]

with

  • P [kW]: driving power
  • n [1/min]: revolutions per minute of motor/pump
  • p [bar]: pressure

Attenuations

Attenuation s (dB) at Frequency f (Hz) *1), Literature No. 31.5 63 125 250 500 1000 2000 4000 8000
Centrifugal pump - spiral casing [1, 2) 46,3 32,3 22,3 13,3 5,3 4,3 6,3 9,3 14,3
Propeller pump - pipe casing [3] 46,3 32,3 22,3 13,3 5,3 4,3 6,3 9,3 14,3
Chemical normal pump [3] 46,3 32,3 22,3 13,3 5,3 4,3 6,3 9,3 14,3
Rot. piston pump [4] 30,1 24,1 18,1 12,1 6,1 4,1 6,1 7,1 13,7
Series piston pump [4] 45,0 32,0 22,0 10,0 5,0 4,0 8,0 14,0 20,0
Diaphragm pump [4] 45,0 32,0 22,0 10,0 5,0 4,0 8,0 14,0 20,0
Screw pump [4] 42,5 36,5 29,5 14,5 3,5 4,5 8,5 12,5 16,5
Feed-water pump 49,1 37,1 30,1 22,1 9,1 2,1 6,1 15,1 26,1
External gear pump [4] 42,5 36,5 29,5 14,5 3,5 4,5 8,5 12,5 16,5
Condensate pump 39,0 29,7 19,2 13,5 6,0 3,9 5,7 12,9 21,5
Canned motor pump [3] 46,3 32,3 22,3 13,3 5,3 4,3 6,3 9,3 14,3
Submerged pump [6] 44,4 30,2 19,1 10,6 4,2 4,0 6,8 11,0 17,1
Magnetic clutch pump [3] 46,3 32,3 22,3 13,3 5,3 4,3 6,3 9,3 14,3
Hydro pump [3] 44.6 38.6 31.6 15.6 3.6 5.6 7.6 11.6 16.6

*1) relative spectra

Literature

  1. Heckl, M.; Müller, H.A.: Taschenbuch der technischen Akustik, Berlin 1995

  2. Schmidt, H.: Schalltechnisches Taschenbuch, VDI Verlag Düsseldorf 1996

  3. VDI-guideline 3743-1, Emissionskennwerte technischer Schallquellen, Pumpen, Kreiselpumpen, 2003-09

  4. VDI-guideline 3743-2, Emissionskennwerte technischer Schallquellen, Pumpen, Verdrängerpumpen, 1989-06

  5. VGB-R 304, VGB Richtlinie Lärmminderung in Wärmekraftanlagen, Essen 1998

  6. VDI-guideline 3720, Blatt 5: Lärmarm Konstruieren, Hydrokomponenten und -systeme, 1984-03

Transformers

Sound Power Level

ID Name Sound Power Level LWA in dB(A) Validity Range
[Standard Deviation]
TRF_VERTEIL transformer group 1, standard LWA = 30,2 + 14,6 · lg Sr - s group 1: 50 kVA < Sr < 2500 kVA
[3 dB]
TRF_VERTEIL_LA transformer group 1, low-noise LWA = 21,2 + 14,6 · lg Sr - s
TRF_NETZ transformer groups 2 and 3, standard LWA = 64,5 + 19,4 · lg S - s group 2: 1 MVA < Sr < 10 MVA
group 3: 10 MVA < Sr < 1000 MVA
[3 dB]
TRF_NETZ_LA transformer groups 2 and 3, low-noise LWA = 40,5 + 19,4 · lg Sr - s

with

  • Sr [kVA]: measured power for transformer group 1
  • Sr [MVA]: measured power for transformer groups 2 and 3

Attenuations

Attenuation s (dB) at Frequency f (Hz) *1) 31.5 63 125 250 500 1000 2000 4000 8000
Distribution transformers, standard 50,2 40,2 8,2 2,2 6,2 21,2 25,2 25,2 25,2
Distribution transformers, low-noise 50,2 40,2 8,2 2,2 6,2 21,2 25,2 25,2 25,2
Mains transformers, standard 52,5 42,5 10,5 4,5 7,5 10,5 8,5 9,5 13,5
Mains transformers, low-noise 52,5 42,5 10,5 4,5 7,5 10,5 8,5 9,5 13,5

*1) relative spectra

Literature

  • VDI-guideline 3739 Emissionskennwerte technischer Schallquellen, Transformatoren, 1999-02