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AC TICSI AI
TM
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DIESEL GENERATOR NOISE CONTROLComprehensive NOISE CONTROL solutions for DIESEL GENERATORS ,
Control rooms, Cabins, Louvers and Other Engine Noise Control Applications
Acoustics India Private Limited is an ISO 9001 certified full service solution driven engineering company with a manufacturing capability of manufacturing noise pollution control equipment since 1988. With a vast experience and a clientele across disciplines, our range of products encompass Steam Vent Silencers, Acoustic enclosures for machines, Diesel generator noise control packages, Compressor noise control package, Power project/industrial boiler noise control package, Silencer for compressor/ fans/ blowers, Sound proof doors, Acoustic treatment for buildings/ ducting/ test facilities and design of complete noise control package for building, comprehensive noise survey and analysis.
1. Engine exhaust silencer which include
a. Reactive silencers.
b. Absorptive silencers,
c. Silencers with spark arrestor & soot collector
2. Turbocharger intake silencer
3. Acoustic Enclosure
4. Ventilation Package
5. DG building Acoustic Treatment
6. Sound Proof control room
7. Acoustic louvers
8. Ventilation silencers
9. Sound Proof Cabin
Our Comprehensive Solutions of Diesel Engine Noise Control consists of the following
We offer absorptive silencers or reactive silencers or a combination of absorptive and reactive type silencers depending on the noise level and the frequency domination. The silencers are designed acoustically and mechanically based on the flow rate, pressure, temperature, pressure drop and the required noise reduction.
The reactive type of silencer is usually cylindrical and it consists of partition baffles and flow tubes. The low frequency noise is attenuated by reaction in the
Engine Exhaust Silencerreaction chambers and thus these types of silencer are suitable for low frequency d o m i n a n t n o i s e . T h e absorptive silencer is usually cylindrical with concentric annular cylinders made of sound absorptive material, which absorbs the noise. We have designed, manufactured and delivered silencers for Diesel Generators of range from 15 KW to 20000 KW.
Turbocharger inlet silencers are provided to prevent the noise escaping through the inlet of the turbochargers. Turbocharger inlet silencers are usually of absorptive type. These silencers may also be provided with air filters.
Turbocharger Inlet Silencer
Acoustic Enclosure is a room like construction built with acoustic panels supported by modular structural frames. The enclosure is designed acoustically and mechanically based on the desired level of noise reduction. The modular structural frames could be easily assembled and dismantled as they
Acoustic Enclosure
are constructed as bolted structures. Acoustic panels are designed in such a way that it can be easily dismantled with the help of quick releasing clamps. This easily dismountable a r ra n g e m e n t fa c i l i t a te s e a s y maintenance. The acoustic enclosure is provided with airtight sound reducing doors as necessary. In order to view the critical areas of the machine, sound proof double glazed glass windows are provided. To take away the heat built up inside, ventilation air intake and exhaust silencers are provided with blowers for forced ventilation and the temperature r i se ins ide the enc losure i s guaranteed. For acoustic enclosure of
engine test beds, suitably designed sliding acoustic doors are provided for loading and unloading the engines on the bed. (In some cases the enclosure itself may be a spilt construction and individually movable type).
KSEB, Brahmapuram - 20 MW Exhaust Silencer
2 MW Deutz Engine Exhaust Silencer
Diesel Generator Noise Control
These silencers are provided for existing ventilation system or along with ventilation package. These are usually rectangular silencers with flat acoustic baffles.
Ventilation Silencers
Sound proof cabins are provided to protect personnel from DG noise. It is provided with sound proof double g l a z e d g l a s s w i n d o w s f o r monitoring. For ventilation purpose a forced ventilation system with air intake silencers, exhaust silencers and ventilation system blowers are provided. Alternatively, the sound proof cabin may be air-conditioned. We have supplied number of portable sound proof operator cabins for Turbo Generator / Turbo
The walls of the control room are acoustically lined with suitable acoustic material for the required thickness. Double / Triple glazed glass windows are provided for monitoring purpose. The room is air-conditioned or ventilation package is provided for ventilation purpose. We have designed to reduce the noise levels up to 55 dBA inside the control room and have achieved it remarkably.
Sound Proofing Of Control Room
Acoustic louvers are provided to inhibit the noise from openings such as those provided for ventilation. The construction of acoustic louvers are similar to that of any other type of louvers except that the louver blades are of acoustic material shaped based on acoustic design.
Acoustic Louvers Sound Proof Cabin
Four test beds for testing 1350 HP and 2600
HP engines were located side by side. To
load & unload the DG on the test beds, the
front side of the acoustic enclosure was
designed with motorized sliding twin doors
enabling the engine front-loading trolley to
move inside the test bed enclosure. The
roof loading arrangement was designed
with a motorized sliding panel on the
rooftop, which enabled top loading of the
engine from the rooftop using EOT crane.
Case Study
DLW, VARANASI
The engine exhaust system consisted of a reactive and absorptive silencer with the associated duct-work and acoustic insulation. Being a test bed, a very effective cooling system was designed to ensure evacuation of heat dissipated from the engine using a separate air washer based air handling unit. The control room sidewalls and roof were acoustically treated with acoustic panels and soundproof doors.
The whole system was tested and a noise level of within 85 dBA around the test bed enclosure and within 55 dBA inside the control room was proved to have been achieved.
The walls and ceiling of the DG building are given an acoustic lining to prevent reverberation of noise from the walls. All ventilation openings are provided with silencers or louvers to prevent leakage of noise. Acoustic windows and doors are
Building Acoustic Treatment
Ventilation Package
The ventilation package consists of air inlet silencer and air exhaust silencer with ventilation blower. These silencers are usually rectangular in cross-section with straight sound absorbing baffles.
provided to seal the noise. If ventilation fans are already present, suitable fan silencers are provided. We have carried out a number of building acoustic treatment projects including projects abroad such as 2 MW & 6 MW DG building acoustic treatment to BHEL for their 4 x 156.1 MW GTPP at Western Mountain, Libya.
blowers where the inside noise level is brought down to within 65dBA from an outside noise level of 110dBA.
Diesel Generator Noise Control
Acoustics India Private Limited
ISO 9001
BUREAU VERITASCertification
ASME
STAMP AUTHORIZED
COMPANY
Clientele
Steel & Power Engineering Chemical & Fertilizers Oil / Petro Chemical
NTPC, NOIDA
AIPL supplied an Acoustic Enclosure for 1000 KVA DG
NTPC Noida. The noise level was as high as 103dBA. The heat
built up inside, if an acoustic enclosure is provided had to be
taken care of. We designed, manufactured, supplied and
erected an acoustic enclosure with a complete ventilation
package consisting of air intake silencer, air exhaust silencer
and ventilation blower. We guaranteed the maximum
temperature rise inside the enclosure to be within 5 C and we
achieved 2 C. We achieved a noise level within 75dBA.
to
Diesel Generator Noise Control
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EIL
RIL BECHTEL
Andrew Yule & Co
Linde/BOC India
L&T/L&T MHI
UHDE/UHDE GMBH
Technimont ICB
BHPV
SABIC
KTI
MECON
Indian Railways
Howden India
Siemens
Atlas Copco
Air Liquide
Thyssen Krupp Industries
Praxair India Pvt Ltd
Copes-Vulcan
Jubail Chemicals
Ansaldo Caldaie Boilers
Tata Motors Limited
SPX Process Equipment
Downer Energy Systems
GALFAR Engineering/PDO
TOPS Technologies / CTCI
ABB
Bateman Engineering
DRDL
Punj Llyod
Spirax Marshall
Samsung Engineering
FEDO
HFCL
CFCL
SPIC
RCFL
MFL
EID Parry
GNFC
Indo-Gulf
IFFCO
GFCL
GSFC
Ultra Tech Cements
Heidelberg Cements
MCSC
FLSmidth
Jubilant Organosys
Ranbaxy Laboratories
Sudha Agro
Shree Cements
Saurashtra Chemicals
GAIL
KRL
HPCL
BPCL
BRPL
MRPL
ONGC
RIL
IOCL
ESSAR Oil
Quippo Infrastructure
Adyard Abu Dhabi
PetroFac International
Southern Petrochemical
Haldia Petrochemicals
Heurtey Petrochemicals
Numaligarh Refinery
Tata Steel
IISCO
SAIL
Visag/Bokaro/Bhilai Steel
Jindal/Durgapur Steel
JSPL
BHEL HYD/HWR/BPL
NTPC
MSEB/KSEB/TNEB
Korea Heavy Industries
Alstom Projects
BSES
Deutsche Babcock
Thermax Babcock
Mitsui Babcock
IJT
Torrent Power
ESSAR Steel
Mono Steel
METSO Power
Belleli Energy
Deutz
Mazagon Dock
Stewards & Llyods
GIPCL
Hindalco
INOX AIR Products
BGR Energy
Caterpillar
DF Power Systems
TD Power Systems
377, Rajaram Salai, K.K.Nagar, Tiruchirappalli - 620 021. Tamil Nadu, India.
Te lephone :00-9 1-431-4044900 (30 l ines ) Fax :00-9 1-431-2456148
Mail : market ing@acoust icsind.com URL: www.acoust icsind.com
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