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Turbines and Noise Control

Gas and Steam Turbines noise considerations and solutions

Electrical power consumption has increased rapidly in the past years and consequently, the need for many large power plants has increased. A form of power generation that has emerged is the gas turbine, which has a wide range of applications such as pipeline transmissions of fuels (gas compressors and liquid pumpers), process power plants, peak load electrical power generation, and more recently baseload electrical power generation utilizing a combined cycle of steam and gas. Parallel to this rapid industrial growth and in reaction against it, concern for the protection of the environment has grown, manifesting itself through the issuance of ordinances and recommendations on local, national, and international levels.

Turbines generated noise types

In a standard modular unit, there are various noise sources, here classified into 5 groups according to the location where they are generated: Aerodynamic, Magnetic, Mechanical, Combustion, and Hydraulic:

  1. AERODYNAMIC

The origin of this noise is the direct excitation of the air or gas by a flowing medium or the interaction of the flow with fixed or movable obstacles within the turbines themselves. This type of noise usually comes from:

  • Flange-to-Flange
  • Vent
  • Gas Valves
  1. MAGNETIC

Although these noises do not always constitute a major source in the overall noise generated by a power station, their presence is not tolerated because of the pure tone at 100 Hz of their sound power. These noises result from alternating magnetic forces due to electrical current and involve in general the generator and the transformer.

  1. MECHANICAL

The mechanical noise that does occur results from a slight unbalance bearing friction, rotational impulses, and torque transmission, in the case of load gear. However, due to the quality of the rotating components and the precision manufacturing required for gas turbines, low sound emissions are generated.
The average low vibration levels measured at the installations underscore the general manufacturing quality of this equipment.

  1. COMBUSTION

Combustion noises, rich in low frequencies, depending on different turbine’s assets: the quantity of the heat released, the geometry of the flame, the nature of the fuel, and the type of fuel nozzle used.

  1. HYDRAULIC

The generation mechanism of this type of noise is the same as for aerodynamic noises with the additional problem of possible cavitation. The high-pressure fuel pump and the flow divider constitute point power sources close to 110 dBA. At some representative complexes, it was observed that their noise was conducted along with the fuel piping, which acted as a line source.

 

The large number and variety of noise sources force plant operators to face hard challenges when trying to find a comprehensive solution for noise coming from gas (or steam) turbines.

Soundproofing your Turbine

The easiest solution would be to wrap the equipment with an acoustic enclosure and solve the problem right at the source. It might not be as easy as it sounds, acoustic enclosures are not standard products and are often customized on clients/equipment needs. Not just that, noise control plans are inclined to be comprehensive for the operation complex as a whole and not just for the turbine itself.

Due to the vast amount of noise sources within the turbine and the variety of noise types that they spring, the most cost-effective approach is a comprehensive noise program, to take place with a specialized partner able to provide custom and complete soundproofing solutions.

Selecting a trustable partner that is specialized in specific products in the field of power plant noise reduction is the ideal answer to the challenges you are facing. Approaching the consultation path with a leading industrial and environmental noise control manufacturer is the quickest and most effective way to solve complex noise mitigation challenges.

Stopson Italiana has worked nationally and internationally for 50+ years with plant processing engineers and their consulting teams to provide accurate and cost-efficient, site-wide noise assessments and mitigation solutions for industrial sectors such as Power Generation plants.

 

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Stopson Italiana solutions

 

Stopson Italiana represents an A-Z solution to control noise in Power plants. Innovative engineering and design solutions deal with practical challenges when implementing our soundproofing systems.

Working on-site with HSE, Operation, and Plant Managers, we believe that effective noise control is a cooperative process between Stopson Italiana and our clients. From initial assessment and noise sources identification to the final result, we provide tailor-made noise control solutions that fulfill the needs of our customers and their industries.

 

⟶ For More Information about Stopson Italiana soundproofing offer click HERE 

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Stopson Italiana Vent Silencers to soundproof OMSK Oil refinery plant in Russia

No. 3 Vent Silencers supplied to one of Russia’s most modern refineries.

OMSK Refinery – Russia: With an installed capacity of 22.23 million tonnes of oil per year, the Omsk Refinery processed 21 million tonnes in 2018, maintaining its leading position in Russia by refining volumes. The Omsk Refinery also leads the industry in terms of key performance indicators in production efficiency, with its light product yield reaching 71.04 percent in 2019, and refining depth 90.89 percent.

The Omsk refinery in Russia has been undergoing full-scale modernization since 2008 including an upgrade to producing fuels meeting Euro 5 standard in phase one of the modernization program that was completed in 2015. Scheduled for deployment within 2021, the phase two project is aimed at increasing the refining depth to 97% and boosting the light petroleum products yield to 80%.

The various technological processes used at the Omsk Refinery are among the most advanced available in refining today, and they needed to be paired with the best soundproofing products to keep performance and ensure noise reduction.

 

The project – which has been recently delivered – includes the supply of N°3 Vent Silencers featuring the following characteristics:

  • 1 V.S. – 750 kg, Flow rate 12 t/h, Temp. up to 538 °C
  • 2 V.S. – 2375 kg, Flow rates 30,9 t/h, Temp. up to 300 °C

Vent silencers are capable to achieve a global noise attenuation up to 70 dB, depending on the

cases, with a target result of 76 and 78 dB(A) @ 1 meter from the equipment.

Welding processes and qualifications as well as all materials involved are certified for low-temperature environmental conditions in order to withstand a minimum design temperature equal to -37°C for pressure parts and -42°C for atmospheric components.

Moreover, due to the rigid climate with a minimum ambient temperature of -49°C, all silencers are equipped with an Anti-freezing Steam System that increased the complexity of the design due to various flange connections to accommodate the coils system on a limited surface along with all required accessories for external insulation, lifting and supporting systems.

Stopson Italiana Vent Silencers

Stopson Italiana has a wide range of products for Refinery applications, including Air Filtration, Duct Silencers, Acoustic Enclosures and Barriers, In-Line Silencers, and Steam Vent Silencers.

Our Vent Silencers are designed to reduce the noise level of exhaust piping to the atmosphere for pressurized gaseous fluids, such as air, vapor, natural gas, nitrogen, oxygen, carbon dioxide, etc. They can be installed downstream of any device acting as a link between a container of pressurized gaseous fluid and the atmosphere. The vent silencer can also provide high or low back pressure relief for the system ensuring proper operation.

Vent silencers can be reactive, absorptive, or combined type depending on applications and required attenuation, which can reach as much as 75 dB(A).

Typical Applications for Vent Silencers are:

  • Safety Valve (PSV)
  • Relief valve (PRV)
  • Control valve
  • Ejector
  • Startup valve
  • Snort-valve
  • Flash and Blowdown Tanks
  • Blow-off

⟶ For More Information about Stopson Italiana Silencers click HERE 

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Stopson Italiana supplied In-Line Silencer for Gas Compression Station in Denmark

No. 2 In-Line Silencers took their place along the Compression pipeline to provide a noise reduction up to 25 dB.

Gas Compression Station – Egtved: The natural gas plant consists of four compressor units and service buildings, supplying the central intersection of the gas pipelines connection north-south from Germany and east-west to Sweden.

The goal of the project was to ensure the best soundproofing performances while maintaining the maximum flow rate within the pipeline. After intense testing, Stopson Italiana developed silencers with special materials suitable for sound absorbing in a pressurized environment. In order to allow higher velocities than standard sound-absorbing material compared to actual flow density, these materials are not directly exposed to the flow, thus maintaining higher initial acoustic performance.

The solution – recently installed – includes the supply of 12” and 16” In-Line Silencers featuring the following characteristics:

  • 82.5 barg design pressure
  • -28° minimum design temperature
  • 22 mm shell thickness
  • In-shop hydro-tested at 123.75 barg
  • PED category IV module G certification

In addition to the above, the acoustic guarantee for supplied silencers is 25 dB(A) of sound power in a fluid vein!

Our offering for Pipelines

Silencer typology: In-Line Silencer

In-Line Silencers are pressurized silencers aiming to reduce the noise generated by valves or compressors.

Being a piece of exclusive design and manufacturing, in-line silencers require deep engineering knowledge, field experience, and accurate quality processes to deliver high-performing and safe products.

The peculiarity of the chosen solution is that noise attenuation is achieved by means of a reactive component only, without the use of an absorbing section.

Stopson Italiana provides for all the silencers the contractual acoustic guarantee of sound energy in a fluid vein resulting in an approx 30 dB attenuation!

 

Features of Stopson Italiana In-line Silencers are:

  • Small, compact construction and high acoustic performance
  • High flow velocity
  • Available in most used pipe diameters and pressure ranges
  • Wide application range
  • High structure-borne attenuation along with the silencer

 

⟶ For More Information about Stopson Italiana Silencers click HERE 

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SilencERmarine is now a Stopson Italiana brand

Stopson Italiana based in Milan (Italy),

leader in industrial soundproofing systems, has recently acquired the brand SilencERmarine, with the aim of increasing its offering in the market of noise control for marine equipment.

SilencERrmarine products and services’ addition to its current portfolio will allow to further strengthen Stopson Italiana’s presence on the naval/marine market with interesting growth prospects, ready to accept the challenges of the competitive global market.

SilencERmarine is a well-recognized brand in the world of marine equipment and noise control, specialized in the production of soundproofing systems for the luxury sector of the boating/yachting industry.

SilencERmarine proven know-how covers the development, manufacturing, and turn-key installation of the following:

  • Stainless steel and GRP (Glass Reinforced Polymer) silencers,
  • Complete exhaust systems (R.I.Na. – Italian Naval Registry, D.N.V., and Lloyd’s Register approved),
  • All components and accessories required to supplement installations of the above products

Here at Stopson Italiana, we believe the experience and knowledge in noise attenuation of marine/naval equipment from SilenceERmarine, combined with the strong and global sales network of Stopson Italiana, can increasingly sustain the growth of the Company.

For 50+ years Stopson Italiana has been offering advanced technological solutions for the leading players in fields such as Oil & Gas, Power Generation, and Industrial sectors, guaranteeing high-efficiency performance in terms of a significant reduction of noise and optimization of operating performance at customers’ facilities.

 

For more on marine equipment solutions visit www.silencermarine.com

 

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Stopson Italiana In-Line Silencers installed in the new Trans Adriatic Pipeline

Stopson Italiana’s solutions chosen to soundproof the new Trans Adriatic Pipeline (TAP). 10 silencers take their place in crucial points along the pipeline to provide a noise reduction up to 30 dB.

TAP is a pipeline project to transport natural gas, starting from Greece via Albania and the Adriatic Sea to Italy and further to Western Europe.

The pipeline would be supplied by natural gas from the second stage of the Shah Deniz (Azerbaijan) gas field development in the Azerbaijani section of the Caspian Sea through the South Caucasus Pipeline and the Trans Anatolian Pipeline (TANAP). The project is aimed at enhancing the security of supply as well as diversification of gas supplies for the European markets. TAP will open a new so-called Southern Gas Corridor to Europe and market outlet for natural gas from the Caspian Sea and Middle East regions and is designed to expand transportation capacity from 10 to 20 BCM per year depending on the stage of the Project.

Stopson Italiana is taking part in the project with its soundproofing solutions. Due to the large scale of the project, the 10 silencers will be installed in specific and crucial points along the pipeline.

  • Nr 3 Silencers – Trans Adriatic Pipeline Receiving Terminal – Melendugno, Italy
  • Nr 3 Silencers – Trans Adriatic Pipeline Compressor Station – Kipoi, Greece
  • Nr 3 Silencers – Trans Adriatic Pipeline Compressor Station – Fier, Albania
  • Nr 1 Silencer – Trans Adriatic Pipeline Metering Station – Bilisht, Albania

Our offering for Pipelines

Silencer typology: In-Line Silencer

In-Line Silencers are pressurized silencers aiming to reduce the noise generated by valves or compressors.

Being a piece of exclusive design and manufacturing, in-line silencers require deep engineering knowledge, field experience, and accurate quality processes to deliver high performing and safe products.

The peculiarity of the chosen solution is that noise attenuation is achieved by means of a reactive component only, without the use of an absorbing section.

Stopson Italiana provides for all the silencers the contractual acoustic guarantee of sound energy in a fluid vein resulting in an approx 30 dB attenuation!

 

Features of Stopson Italiana In-line Silencers are:

  • Small, compact construction and high acoustic performance
  • High flow velocity
  • Available in most used pipe diameters and pressure ranges
  • Wide application range
  • High structure-borne attenuation along with the silencer

Stopson Italiana In-Line Silencers are used to control noise produced by valves in piping systems. The In-Line silencer reduces the aerodynamic noise resulting from gas or vapor turbulence. The In-Line silencers are not the only soundproofing solution Stopson Italiana has in its arsenal.

Silencers in a circular or rectangular shape, atmospheric or pressurized for any gas, temperature range, and applications providing sound attenuation up to 70 dB and reduce residual noise to a sustainable level.

 

⟶ For More Information about Stopson Italiana Silencers click HERE 

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Soundproofing for Manufacturing Facilities

What are the challenges for sound insulation in industrial buildings and facilities?

Sound insulation in industrial buildings and factories has two main goals: to reduce noise for employees in the facility and soundproofing for the outside.
This should prevent noise from becoming a problem for neighbors and residents.

Noise in Manufacturing Processes

Soundproofing for large manufacturing factories and facilities is a challenging task mostly because there are several noisy types of equipment that usually run at the same time within the complex:

  • Vibrating panels
  • Fans
  • Air-flow
  • Impact processes
  • Engines
  • Processors
  • Other manufacturing equipment

The large number and variety of equipment within the plant force plant operators to face unique challenges when trying to find a comprehensive solution for noise mitigation.

This combination of different noise sources can contribute to the overall noise levels. But it is not only the numerous sound sources in the facility that influence the selection of the right sound insulation elements but also the structural features of the environment in which the source takes place. For example, Sound-reflecting surfaces, e.g. concrete, stone, or metal, along with high ceilings and wide rooms, can cause strong reverberation and long reverberation times.

Sound Insulation for Manufacturing

How the noise is controlled is dependent on the source. For instance, external noise caused by HVAC units or process pumps is assessed and treated differently to internal noise sources such as plant machinery.

There are several possibilities for soundproofing in manufacturing facilities. Noise can be dampened, for example, by using soundproofing solutions on individual machines and devices such as acoustic enclosures or different types of silencers.

Because of the variety of contributing noise sources in this kind of facility, there is no one-size-fits-all solution. Due to the complexity of the acoustical challenges this sector face, a tailored solution is required to ensure the deployment of effective noise control systems.

Following an initial consultation path with a leading industrial and environmental noise control manufacturer, is the quickest and most effective way to solve complex noise mitigation challenges.

Stopson Italiana has worked internationally with plant processing engineers and their consulting teams to provide accurate and cost-efficient, site-wide noise assessments and mitigation solutions of industrial sectors such as petrochemical complexes both large and small.

 

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Stopson Italiana solutions for Manufacturing plants

 

Stopson Italiana provides a complete solution to help our customers control manufacturing complex’s noise concerns. Innovative engineering and design solutions deal with practical challenges when implementing our soundproofing systems.

Working on-site with HSE, Operation, and Plant Managers, we believe that effective noise control is a cooperative process between Stopson Italiana and our clients. From initial assessment and noise sources identification to the final result, we provide tailor-made noise control solutions that fulfill the needs of our customers and their industries.

Our offer includes:

  • SILENCERS
    Absorptive for cold and hot gases, reactive for engines or small boilers exhaust, combined absorptive and reactive for venting systems. Circular or rectangular shape, atmospheric or pressurized for any gas, temperature range, and applications, providing sound attenuation up to 70 dB and reduce residual noise to a sustainable level. → KNOW MORE

 

  • BARRIERS & ENCLOSURES
    Shaped around noisy equipment, indoor or outdoor, on-base or off-base, designed to provide optimum noise attenuation in any critical environment. Made of modular acoustic panels and linings for sound isolation while ensuring equipment maintenance, ventilation, weather protection, and fire safety. → KNOW MORE

 

⟶ For More Information about Stopson Italiana soundproofing solutions click HERE 

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Noise reduction in Petrochemical plants

Tackling Noise Containment in Petrochemical facilities: Concept, Principle and Challenges

Oil and gas infrastructure, from extraction, to refining and processing, to pipeline transmission and distribution make use of some of the largest, most powerful, and noisy equipment within the whole industrial sector.

Processes such as hydro-cracking, distillation, liquefaction, and regasification involve large scale compressors, furnaces, gas-turbines, fan-cooled heat exchangers, and large-scale evaporative cooling systems are well known to be noisy.

Acoustical challenges in petrochemical processes

Petrochemical plants face complex acoustical engineering challenges. Petrochemical processes operate largely outdoors, these operations, which include pumps, compressors, blowers, agitators, and coolers, run out in the open, with limited barriers in place to restrict equipment noise from going beyond the confines of the plant.

These plants, as we said, include large numbers of industrial tools and often moving high volumes of air or gas while operating at really high pressures and temperatures. All these combined means that such areas can be exceptionally noisy. Moreover, the large number and variety of equipment within the plant force plant operators to face unique challenges when trying to find a comprehensive solution for noise mitigation.

With noise control and environmental legislation becoming more stringent and the employee health and safety that stay at the forefront of all processing practices, ensuring that noise is effectively mitigated has become a key concern for process plant operators across the petrochemical and chemical processing sector.

Solutions

Plant operators across the industry should be considering that soundproofing installations are not the same twice, careful consideration must be given to each system’s function, permitted noise levels, and much more to determine the most effective noise control solution for the application. As a result, when it comes to specifying what is the perfect noise mitigation product for on-site equipment in such environments, there is no one-size-fits-all solution and several factors must be analyzed.

Noise control measures for such industrial plant items can be particularly complex to design from an acoustic perspective, given a large number of noise sources. Besides, any housings or anything else that is fitted around the equipment can present significant challenges for the ventilation of the analyzed equipment.

Following an initial consultation path with a leading industrial and environmental noise control manufacturer, is the quickest and most effective way to solve complex noise mitigation challenges.

Stopson Italiana has worked internationally with plant processing engineers and their consulting teams to provide accurate and cost-efficient, site-wide noise assessments and mitigation solutions of industrial sectors such as petrochemical complexes both large and small.

 

 CONTACT US!






 

 

Stopson Italiana solutions for Petrochemical plants

 

Stopson Italiana approach focuses on providing an optimal acoustic response, which satisfies functional requirements with the best price/performance ratio.

Our offer includes:

  • SILENCERS
    Absorptive for cold and hot gases, reactive for engines or small boilers exhaust, combined absorptive and reactive for venting systems. Circular or rectangular shape, atmospheric or pressurized for any gas, temperature range, and applications, providing sound attenuation up to 70 dB and reduce residual noise to a sustainable level. → KNOW MORE

 

  • BARRIERS & ENCLOSURES
    Shaped around noisy equipment, indoor or outdoor, on-base or off-base, designed to provide optimum noise attenuation in any critical environment. Made of modular acoustic panels and linings for sound isolation while ensuring equipment maintenance, ventilation, weather protection, and fire safety. → KNOW MORE

 

⟶ For More Information about Stopson Italiana soundproofing solutions click HERE 

Silenziatori a Sfiato
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An in-depth Analysis about Industrial Silencers Manufacturing

How and what you need to know to soundproof properly your plant

Some basics about noise

Noise is commonly defined as unwanted sound. A typical noise control problem includes three basic components: the noise source (machines, fans, pumps, processes etc.), the receiver (persons subjected to the noise); and the path (the route the noise travels between the source and the receiver indoors or outdoors).

Noise can be classified in two different forms: airborne and structure-borne.

The first one goes from a source to a receiver as a differential in atmospheric pressure, traveling in all directions. Structure-borne instead is unwanted vibration, which is transmitted from a vibrating source to a receiver through a solid material and regenerated as airborne noise. Once the three main elements (source, path and receiver) have been identified, four ways can be adopted to control the noise: absorption, barriers (blocking), damping and vibration isolation.

Perhaps the greatest single contribution of unnecessary noise is the lack of proper maintenance and corresponding preventive maintenance intervals. Equipment that is poorly maintained eventually becomes inefficient. One manifestation of inefficiency is noise (misdirected energy), which, ultimately, becomes the subject of replacement. Typical energy wasters and noise producers are:

  • Steam leaks
  • Slipping belts
  • Worn bearings/gears
  • Improperly aligned belts
  • Unbalanced rotating parts
  • Reciprocating striking parts
  • Insufficiently lubricated parts
  • Contact between moving and stationary parts
  • Compressed air leaks
  • Vibrating sheet metal, such as streamlining
  • Improperly adjusted linkages or cams

 

How to choose the most appropriate Steam Vent Silencer provider

Which are the most relevant data to be considered in order to identify the correct roles within the supply chain of acoustic manufacturers. Understanding all of the factors involved could simplify the selection of the rightest vent silencer for the application required. But first, it’s important to introduce vent and blowdown silencers, reviewing the factors involved in predicting the noise generated by high-pressure vents.

Here below a list about the blowdown and vent applications that require silencers:

  • Steam venting in power generation applications
  • Process control and relief valves in industrial applications
  • Pipeline blowdowns and Natural Gas compressor station
  • Blowdown tanks and autoclaves
  • Bypass valves on blowers and compressors
  • Discharge of high-pressure gas to substantially lower pressure environment (atmosphere).
  • Steam ejectors and hogging vents

 

Vent Silencers and their applications

Stopson Italiana’s Steam Vent Silencers

The terms “vent silencer” and “blowdown silencer” refer to the relative application for which each one is used. For both of them the design is similar, since we refer to vent silencers when being used to vent at a constant flow rate, for a period of time. The word silencer is instead referred to as blowdown, when they are blowing down a finite volume of gas starting at a high pressure, and ending at a low pressure over a given time. Vent silencers are sized for constant flow and blowdown silencers are sized for maximum flow.

Vent silencers find wide applications in high pressure vents, steam vents, safety relief valve outlets, system blow downs and purge outlets etc. Vent and blowdown noise is a function of upstream pressure and temperature, type of gas being vented, the valve size and type, plus the effect of downstream piping.

Stopson Italiana designs and manufactures high quality Vent Silencers that attenuate the high noise produced by the expansion of Gas, Steam or Air at elevated temperatures to atmospheric pressure.

When it’s required the installation of a Vent Silencer, here below all the data required in order to obtain a precise offer:

  • Application (Vent, Blow down, Relief)
  • Fluid Composition (Steam, Gas, Air)
  • Molecular Weight or Specific Gravity
  • Process conditions upstream of valve and units (lb/hr, SCFM, ACFM)
  • Temperature Pressure (P1)
  • Atmospheric pressure ( Pa ) / Temperature (T2)
  • Line size between valve and silencer
  • Line size from silencer discharge
  • Attenuation required (silencer performance)
  • Allowable pressure drop

 

Noise Generated by High-Pressure Vents

Over the years, there has been a good deal of work done in the field of predicting the noise generated by the high-pressure venting of gases.

Factors Influencing Noise Generated by High-Pressure Vents:

  • Mass flow – the higher the mass flow, the noisier it becomes.
  • The type of gas and its molecular weight/specific gravity – lighter gases are noisier.
  • Temperature – higher temperatures result in lighter gas flows, and therefore, higher noise levels.
  • Upstream versus downstream pressure – the higher the upstream pressure is relative to downstream pressure, the louder it will be.
  • Choke flow (critical flow or sonic flow) – occurs when upstream pressure is roughly two times or greater than downstream pressure, making things much noisier.
  • Orifice/opening size of valves, vents, orifice plates, diffusers, etc. – larger diameters result in low frequency noise, while smaller diameters produce higher frequency noise. For instance, diffusers create a shift in the noise spectrum from low frequency (one large vent opening) to high frequency (many smaller openings), which is much easier to attenuate.

Elements Creating Noise in High-Pressure Venting Systems

The noise at the end of a high-pressure vent pipe is a combination of the noise generated by the high-pressure-drop elements in the system. Essentially, any element that has a high-pressure drop across it or large change in area will create noise and should be included in the noise model to accurately predict overall noise level.

The major elements that create noise in high-pressure venting systems are:

  • Pressure relief and control values – present in virtually all venting systems.
  • Vent pipes/nozzles – last element in venting systems, except for those using high-pressure silencer diffusers.
  • High-pressure silencer diffusers – when included, usually designed to provide a specific backpressure at the rated flow (sometimes used as fail-safe device).
  • Orifice plates – included in many systems as a flow regulator or fail-safe device.
  • Enlargers (reducers), headers and abrupt transitions – included in pipe systems for various reasons. Shock Noise Versus Turbulent Mixing.

There are two phenomena that produce noise in a high-pressure venting system:

  • Shock noise – occurs when a choked flow condition exists
  • Turbulent mixing – caused by the ripping of the air as the vent gas decelerates to lower velocity, such as the atmosphere. Shock noise is the louder of the two. By adjusting the elements in a piping system it is possible to reduce the shock noise by reducing the magnitude or quantity of choked flow conditions present. Turbulent mixing, on the other hand, is always present, though less of an issue.

The Sound Vibration Control Magazine released a full report with all the specifications needed (listed in a Data Sheet) in order to proceed with the right purchase of a industrial silencer.

 

Industrial silencers: an increase of demand due to a more strict regulation for industries

An integral part of today’s industrial process and ventilation systems, industrial fans, blowers, and compressors are leading causes of noise problems. If unaddressed, these issues can lead to health and safety concerns, as well as environmental regulation violation. With the tightening of noise regulations, industrial facilities are required to stay in compliance with regulations. Industrial silencers are typical being used to attenuate noise coming from intake and exhaust systems of industrial facilities. These silencers may be built in limited space.  Inside an industrial area, fan installation is one of the most predominant source.

Industrial silencers are engineered to control noise in specific applications, and can alleviate problems in work facilities. With more than 50 years of experience Stopson Italiana soundproofed plants in a broad range of installations, such as:

  • Fan Silencers
  • Duct Silencers
  • Blower Silencers
  • Sound Enclosures

Gas Turbine Engine Exhaust Silencers

Silencers are required for almost all installations that particularly include gas turbines and heat recovery steam generators. Our Gas Turbine Exhaust Silencers are especially designed to work in an environment where they are simultaneously exposed to high temperatures and to high velocity turbulent flow.

Stopson Italiana provides full custom engineered Inlet Exhaust Silencers for Gas Turbines, DG sets Turbo Compressors and Turbo Blowers. They entail complete solutions in the field of Machinery filtration and acoustic solutions for Gas turbines and compressors.

Stopson Italiana Gas Turbine Silencers provide the ideal solution to keep noise at a manageable level, while maintaining the operating efficiency of your turbine intake system.

Stopson Italiana designs and manufactures all types of discharge silencers in compliance with the international quality standards. Our discharge silencers are very much effective in reducing the noise for entire systems that receives air for heavy engines & turbine.

 

Stopson Italiana engineers have been designing application-specific products and services for industrial plants and processes since 1965.
Each product manufactured is tested and inspected to meet all applicable industry standards in terms of quality, longevity and safety.