Stopson Italiana exhibits at Electrify Europe 2018 in Wien

Stopson Italiana will present the technological features of its soundproofing products in the world’s leading conference and exhibition for the European Power Generation industry

In its inaugural year as Electrify Europe, the re‑imagined event (previously “Power Gen”) will be dedicated to the convergence underway between the power generation and the transmission and distribution sectors, driven by digitalization, decarbonization, decentralization and electrification.
For all those attending, Stopson Italiana will make available its technical expertise to support any demanding requirements to develop new sound-proofing and noise abatement solutions in the Power Industry.

Visit us at EE2018, Italian Pavilion – Hall A Booth R52

CLICK HERE ⇦
TO DOWNLOAD YOUR FREE PASS!

With the aim to attract over 11.000 delegates and attendees from more than 85 countries, Electrify Europe represents the industry’s premier conference and exhibition dedicated to the power generation, renewable and alternative energy and transmission and distribution industries. In this year of rebranding, the trade show has extended its conference program including keynote and plenary sessions addressing key issues affecting the sector. Among these: E‑mobility, Cybersecurity, AI, Blockchain, Demand Side Response and Energy Storage. Read full program here.

This year, Electrify Europe will address such topics as:

  • Transforming power economics & management
  • Advances in power generation technology
  • Operations & maintenance in a digital age
  • Sustainability & environmental protection
  • Energy storage & e-mobility
  • Intelligent infrastructure & cybersecurity
  • Empowering the customer
  • Distributed energy & systems
Since 1965 Stopson Italiana has been considered one of the largest provider of noise control solutions such as silencers, enclosures, vent equipment and test facilities for any industrial applications.


The Electrify Europe will take place on 3 days from Tuesday, 19 June to Thursday, 21 June 2018 in Wien and Stopson Italiana will be exhibiting at Hall A Booth R52 (Italian Pavilion)

Silenziatori a Sfiato

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.

Stopson Italiana now certified ISO 9001:2015 in compliance with new rules for Quality Management System

Stopson Italiana has just achieved the new ISO 9001:2015 certification, pointing its ethical awareness towards a full compliant and updated Quality Management System.
The certification highlights the company’s focus on pursuing a policy of continuous improvements, constantly keeping all its operating units up-to-date, ensuring customers affordable performance, products and services.
We firmly believe in teamwork – said the CEO of Stopson Italiana -, for this reason, while adopting this new certification we ensure that stakeholders, such as customers, staff, suppliers feel more involved around common objectives”.
Defined by International Organization for Standardization, and provided in Italy by ICIM SpA (Istituto di Certificazione Italiano per la Meccanica), ISO 9001 is a standard that sets out the requirements for a quality management system. It helps businesses and organizations to be more efficient and improve customer satisfaction, sharing the culture of quality for the industrial mechanical sector.
The new version of the standard, ISO 9001:2015, has just been launched, replacing the previous version (ISO 9001:2008).

 

ISO 9001:2015 specifies requirements for a quality management system when an organization:

 

  • needs to demonstrate its ability to consistently provide products and services that meet customer and applicable statutory and regulatory requirements;
  • aims to enhance customer satisfaction through the effective application of the system, including processes for improvement of the system and the assurance of conformity to customer and applicable statutory and regulatory requirements.

 

The main difference with the previous certification

 

The most noteworthy change to the standard is represented by its new structure. In facts, ISO 9001:2015 follows the same overall structure as other ISO management system standards (also known as the High-Level Structure). As a consequence it is more expedient using multiple management systems. Another difference is the focus on risk-based thinking, since this new version gives it increased prominence.

 

Contextual Analysis as a new core issue

 

An other important element of novelty regarding the definition of quality concerns the identification of the context in which the company operates.
Context of the organization is analyzed considering both the internal and external issues that can impact strategic objectives and the planning of the QMS.
In facts, clause 4 of ISO 9001:2015 mentions how the organization needs to evaluate itself and the various elements that influence its context, such the company’s culture, objectives and goals, complexity of products, flow of processes and information, size of the organization, customers, markets, etc.

 

Internal context can include its approach to governance, its contractual relationships with customers, and its interested parties.
In order to determine the external context, a more in depth analysis on social, technological, ethical, political, legal, and economic environment is required.
Examples of external context can include:

 

  • Government regulations and changes in the law
  • Economic shifts in the organization’s market
  • Level of competition
  • Events that may affect corporate reputation
  • Changes in technology

 

The benefits in pills:

 

The new version  ISO 9001:2015 brings the user a number of benefits. Among the others:

 

  • A more relevant emphasis on leadership engagement
  • Support in terms of addressing organizational risks and opportunities within companies
  • Cross and multidisciplinary structure and language, useful in order to make use of multiple management systems (business continuity, environment, health & safety, social responsibility)
  • A deeper insight on supply chain management’s efficiency
  • Thought with a user-friendly approach in the service design

 

See more info about the Stopson Italiana’s certifications here.

 

Stopson Italiana wishes you a Merry Christmas and a Happy New Year

Another great year has passed re-confirming a growth trend for Stopson Italiana.

A slight recovery in oil price and general market demand is boosting our expectations for a brighter future ahead of us.

2017 has been a year of large investments for us in order to set up our Company for future growth: the acquisition of new calculation tools expanding our in-house capabilities to engineer complex projects, the implementation of technical documentation management system to support our ability and responsiveness to deal with most demanding Customers and project specs, the launch of SAP B1 ERP system scheduled for January 2018 are just a few examples of our enlarged platform to address next challenges.

Stopson Italiana remains grateful to all of our Customers who made that possible with their continuous support and trust and wishes you and your family a Merry Christmas and a prosperous 2018!

Stopson Italiana silencers to be installed in Turkish military vessels

Our Inlet Duct and Engine Exhaust Silencers will equip a five MAN 16V 32/40 8000 KW Generators on the TCG Anadolu.

The project entails no. 5 Inlet Duct and no. 5 Engine Exhaust silencers both capable to handle 100.600 m3/h flow while achieving 35 dB(A) noise reduction.

One of the five delivered Engine Exhaust Silencers, during the installation phase in Istanbul

The inlet SVR model silencers are made of galvanized steel splitter panels inserted into a painted carbon steel frame with circular inlets and outlets.

The exhaust silencers are made of AISI316 and derived from the Engine Exhaust SM40 DN1200 model with the addition of Spark Arrestors section to prevent the emission of flammable debris from combustion sources.

Stopson Italiana’s R&D team did a great job in assessing all customer requirements and delivering a fully customized solution, thus confirming our capability to leverage our wide range of standard design products optimized around project specifications.

Developed in Stopson Italiana Research and Development lab, these silencers have been field-tested on numerous industrial applicationsThey are principally conceived to be installed on diesel and gas engines, or on industrial low/middle power gas turbines.

These silencers are based on a absorption and/or resonance sound wave attenuation principle. Depending on the required attenuation performance, 5 models can be chosen: SM 15, SM 25, SM 30, SM 40, SM 50.  The nomenclature represents also the nominal diameter of the inlet (e.g. SM15 ND 100, SM25 ND 200, etc).

In addition to Spark Arrestor (here above mentioned), some other optional features can be provided:

  • Flanges
  • Counter flanges
  • Seals and bolts
  • Supports for vertical and horizontal installation
  • Stainless steel or other special materials
  • Highly resistant absorptive material for temperatures over 530° C

The selection of the inlet filtration system is an important stage as poor quality inlet air can significantly impact the operation, performance, and life of the engine, either gas turbine or diesel/gas engine.

A great effort has been spent by Stopson Italiana’s engineers to design custom Inlet Duct air filtration systems.

Stopson Italiana’ Inlet Duct Air filtration systems.

In facts, marine vessels need to work even in adverse conditions, thus the continuous operation is often more important than the health of the engine itself.  Multiple gas turbines are used on the ships, so there is a spare if one needs to be shut down for maintenance. That can happen in case the filter is clogged, damaged, or blocked, causing – as a consequence – excessive pressure loss.
Moreover, inlet filter housings on marine vessels must be ice and corrosion resistant, due to the significant presence of salt.

Generally, when we refer to a gas turbine intake, some of the consequences of poor inlet filtration entail erosion, fouling and corrosion.
In order to minimize degradation, the metal components of the system needs to be constructed out of a stainless steel or aluminum with adequate corrosion resistant properties. Once a suitable filter system has been selected, a range of ductwork and filtration silencers is provided in order to reduce the noise of fast flowing air into the inlet manifold before reaching the compressor.

These silencers are typically of a ‘splitter type‘ configuration, to minimize pressure drop and increase the airflow into the compressor chamber.
The supply can regard even a standalone filter packages, including pulse filters for removing dust at the inlet of gas turbine packages.

See more about our Industrial Silencers HERE!

 

Stopson Ventilation Silencers to be installed at Gas Compression stations in Northern Italy

Completed delivery of 12+8 combined Ventilation System Building for Gas storage plant in Sergnano and Minerbio (Italy)

 

Stopson has successfully fulfilled the delivery of 12+8 Ventilation System Buildings for the natural gas Compression Stations in Sergnano and Minerbio (Italy).

Ventilation System Building for Industry
Section of combined Filtered-and-silenced Inlet System (Cremona – Italy)

The supply service entails a total of twenty ventilation systems, composed by 20 filtered-and-silenced Inlet System together with the same number of Soundproofed Outlet Systems with forced extraction and fireproof dumpers.

The acoustic warranty covers a noise level reduction of 30 dB(A) SPL at 1mt.The order has been completed and tested phase in these past days.

In general, the plant consists of implementation of 3 turbo-compressor to be set within the Sergnano gas infrastructure. The operations necessary for the installation of the station will be completed as a whole by mid 2018.

The total investment amount is 0.6 bln € (between 2017-2021), aimed to increase the general safety and flexibility of the area, bringing a resources’ capacity increment of 7% circa.

Thanks to a 50 years of experience in the field of industrial soundproofing, Stopson’ technical department is able to deeply analyze and propose the rightest solutions to control noise produced by the extraction systems.

Some possible applications are:

  • Soundproofing of compressors
  • Soundproofing of pumps
  • Silencers for industrial fans
  • Soundproofing air expulsion chimneys
  • Silencers for ATU/air treatment units
  • Silencers for extraction systems
  • Soundproofing engine testing room
  • Silencers for side channel blowers

The main solutions consists of rectangular or circular silencers, designed taking into account of the different noise sources and sound spectrum. The installation can be made along the piping or chimneys of emission into the atmosphere.

They can be designed and produced in standard dimensions, or in any size on request and are equipped for external air intake, in addition to return from the filter system.

Everything You Need to Know about Noise Pollution

How to limit the noise propagation (not only in Oil and Gas). Risks and countermeasures of a phenomenon as important as universally underrated.

The noise pollution’s matter has become a well-documented public domain anthology by now.

The World Health Organisation has reported that 40% of Europe’s population is exposed to noise levels in excess of 55dB. Moreover, noise pollution is ranked as second to air pollution, in terms of affecting our health and wellbeing, including diabetes, tinnitus and risk of heart disease.

Noise pollution in Oil and Gas

According to recent study achieved by PSE Healthy Energy and West Virginia University, some modern Oil and Gas techniques – such hydraulic fracturing (or “fracking”) – produce noise that may increase adverse effects on human health. 

A fracking well in Colorado, pictured in 2012

Fracking can create noise at levels high enough to harm the health of people living nearby (source phys.org). “Oil and gas operations produce a complex symphony of noise types, including intermittent and continuous sounds and varying intensities,” argued PSE Healthy Energy Executive Director Seth Shonkoff.

A adequate set of policies should be specified, in order to safeguard residents and communities, such particularly vulnerable populations (e.g. schools and hospitals). Noise mitigation techniques like perimeter sound walls, noise barriers and acoustic enclosures could represent the most appropriate solutions to hold back this phenomenon.

Noise impact on marine species

This is not all. A recent study led by International Fund for Animal Welfare, reveals the damaging impact of Oil

Noise pollution can damage marine species

and Gas noise pollution on whales and dolphins. In the report, they put in evidence how new technologies should reduce their impact on marine environment during the exploration phase (source: International Fund for Animal Welfare).

 

Noise and Diseases

Numerous epidemiological studies have linked noise to adverse health outcomes too. They include diabetes, depression, birth complications and cognitive impairment in children.

In facts, apart from damage to hearing, exposure to excessive and constant noise can cause other health problems including:

  • Headache
  • Sleep and heart disease
  • Stress
  • Elevated blood pressure
  • Fatigue
  • Irritability
  • Digestive disorders
  • Increased susceptibility to colds and other minor infections

Noise in Europe: limits and human tolerance

As we know, the loudness of noise is measured in decibels. Sensitivity to noise differs from one individual to the next, but experts believe that damage to hearing occurs when noise levels are higher than 85 decibels, which is about the loudness of heavy traffic.

Every year, 7 million people in Europe die from heart disease, that would put the toll from exposure to noise at around 210,000 deaths. In England heart disease kills 110,000 people annually, so the deaths linked to noise could be around 3,300.

2% of Europeans suffer severely disturbed sleep because of noise pollution. The researchers calculate that chronic exposure to loud traffic noise causes three per cent of all cases of tinnitus, in which sufferers hear constant noise. Length of exposure is important too. In facts, it is not recommendable to listen to noises of 109 decibels for any longer than two minutes in row.

Noise and public health in U.S.

In US the noise phenomena has been studied deeply, causing a direct response by public healthThe Health Impacts Project (HIP) provides since 2013 guidance for policy makers to identify the health consequences of potential projects by making public a national sample of health impact assessment.

Exposure Limits in U.S.

The U.S. EPA recommends an average 24-hr exposure limit of 55 A-weighted decibels (dBA) to protect the public from all adverse effects on health and welfare in residential areas. This limit is a day–night 24-hr average noise level (LDN), with a 10-dBA penalty applied to nighttime levels between 2200 and 0700 hours to account for sleep disruption and no penalty applied to daytime levels.

More info about the Noise sources and Soundproofing solutions in industrial sector can be found here.

 

 

Environmental Integrity and Low Emissions: Power-Gen relies on digital progress

Everything is ready for the 25th anniversary of Power-Gen, coming next June 27-29. Main focus: digital technologies and renewable energies.

“Making sense of power in Cologne 2017”. This is the payoff spotted for the Power-Gen Europe, international Oil & Gas event taking place in Cologne, next June 27-29.

English: Shahid Salimi Power Plant:Neka Power ...

After a highly successful show in Milan, Power-Gen Europe moves to Cologne (Germany) the place where the transition is most meaningful.

In facts, the European power segment is re-defining itself, trying to align with the most complex features arisen by digital age. In order to attain the most prominent technological implementations onto the Power Generation scenario, three days of plenary sessions have been scheduled.

The purposes pertain to several areas:

  • Power Plant Technology
  • Distributed Power Generation
  • Renewable Sources
  • Energy Service Providers
  • Energy Utilities

 

Since its founding in 1993, the forum has been taken place annually at different locations. Attracting a worldwide audience, it is the industry’s premier event, resolved to discussing solutions for advancing Europe’s energy future. Hence Big Data and automation for the future of Power Generation. Relying on the variety of data collected during the power generation process, it will be soon possible to obtain new methods to support better decision and optimized operations.

Featuring the leading suppliers, sub-suppliers, service providers and end-users across the entire value chain, the trade-show encapsulates all aspects of today’s centralised and distributed power generation sector.


Workshops:

#1 | DEVELOPING A SECURE AND AFFORDABLE GAS MARKET

28 June 2017 – 09:00-12:30

Europe’s future energy security will be greatly enhanced by a robust, efficient and competitive gas system. The workshop will face the challenges and risks concerning the development of a secure and affordable European gas market.

 

#2 | CARBON EMISSIONS MANAGEMENT

28 June 2017 – 14:00-17:30

Efficient emissions management reduces energy and consequential costs, and increases corporate reputation and environmental integrity. This workshop provides an independent and objective assessment of emissions management from both a market and policy perspective.


 

The PowerGen Europe
Tuesday, 27 June / Thursday, 29 June
Cologne – Germany

 

Stopson Italiana exhibits at Power-Gen Europe in Cologne

After its last attendance to Power-Gen Asia in Seoul, Stopson Italiana will fly to Cologne for the 25th Anniversary of the trade show.

For all those attending, Stopson Italiana will make available its technical expertise to support any demanding requirements to develop new sound-proofing and noise abatement solutions in the Power Industry.

Celebrating 25 years of history, POWER-GEN represents the leading force in delivering a platform for the power industry to meet, share information and discuss about new progress in applied technologies for the growth of energy’s future.

 Visit us at Power-Gen Europe, Hall 8 – Booth J33!

CLICK HERE
TO DOWNLOAD YOUR FREE PASS!

Stopson Italiana Power Gen europe

 Attracting over 8,300 delegates and attendees from more than 85 countries, Power-Gen Europe represents the industry’s premier conference and exhibition dedicated to the power generation, renewable and alternative energy and transmission and distribution industries.
This year marks a new format for POWER-GEN Europe and Renewable Energy World Europe, with the decision to run our popular Keynote and Plenary sessions on the first day as opposed to splitting them over 2 days. The conferences provided will cover Hydropower, Finance and Energy Storage.
As a well-established knowledge base for the power industry, the aim of the exhibition will be connecting professionals engaged in Europe’s energy change, identifying opportunities for innovation, and business development across the sectors.
Since 1965 Stopson Italiana has been considered one of the largest provider of noise control solutions such as silencers, enclosures, vent equipment and test facilities for any industrial applications.

Power-Gen Europe 2017 will take place in Cologne (Germany), June 27-29, and Stopson Italiana will be exhibiting at Hall #8 – Booth J33.

How Industrial Silencers work in HVAC systems

Crucial factors to take in account when silencers have to be installed in HVAC plants.

One of the most frequent application of soundproofing technology (like Acoustic Louvers and Intake Silencers) encompasses definitely the installation on HVAC plants. These installations release sound emission into the environment, often exceeding the allowed thresholds.

That’s because of the noise created by airflow produced by motors or fan. In other cases, the sound waves tend to break out through the walls of the ductwork and spill out into a room. Often, the noise travels the length of the ductwork and spill out the mouth at the vent.

Acoustic EnclosuresAccording to their functions, these machines are arranged in outdoor places, like courtyards and terraces. Hence, the first step is to evaluate the area in which the HVAC systems should be set. That means an accurate mapping process of noise propagation, including ventilation of buildings, enclosures, and equipment rooms. Integration of noise control measures such as silencers and louvers, into the system design requires careful consideration of space constraints, fan selection and aerodynamic pressure losses.

The need is, one one hand, to reduce the noise generated by air or gas flow. On the other, to avoid of compromising the air or gas flow itself, with keeping the pressure drop as low as possible too. For these reason the Stopson Acoustic Louvers, Intake Silencers and Acoustic Enclosures can be considered suitable for these multiple industrial applications. The silencers can be added on the ventilation circuit and combined with the machine, in order to completely acoustically isolate it in any direction.

The HVAC silencers are an excellent choice for applications requiring maximum insertion loss (noise reduction), low static pressure drop, low maintenance, and quick delivery. Stopson’s offer encompasses the design and engineering assistance to integrate the HVAC system with its attenuators. Both ready-made silencers and custom built solutions are offered. The benefits are: durability, surface finishing, ease to operate.