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.

C.O.R.U. Project Moscow

Stopson Italiana delivers Vent Silencers for Refinery and Petrochemical Projects in Russia

EAC certified vent silencers successfully supplied for Oil & Gas projects in Moscow and Kingisepp

Stopson Italiana has recently completed delivery of 10 silencers to be installed at Combined Oil Refinery Unit (CORU), in the Moscow Refinery and 9 vent silencers to be installed at the new Ammonia plant under construction in Kingisepp, Russia, according to the data below:

  • C.O.R.U. Project – no. 10 SPM and PSP vent silencers for the Combined Oil Refinery Unit, with flow rates from 0,4 to 46 t/h. Temperatures from 150 °C to 450 °C, noise levels 80 dB(A) @ 1 m.
  • Kingisepp Project – No. 9 SPM vent silencers for the Ammonia plant, i.e. Steam and CO2 with flow rates from 1 to 130 t/h. Temperatures from 110 °C to 515 °C, noise level 85-110 dB(A) @ 1 m.

9 SPM Vent Silencers Ammonia PlantAll silencers have engineered according to the highly demanding EPC and end user’s technical specifications. They have been manufactured in Italy in special materials, including stainless steel for internal components, and certified in accordance with EAC TR CU 010 standards for Russian market.

Stopson’s Vent Silencers can be installed downstream 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.

SPM Vent Silencers, used for higher flows and back pressure, are based on a combined reactive and absorptive principle for noise reduction. The gases expand to atmospheric pressure through a perforated diffuser, providing a first important step in attenuation. The flow evolves into a sound-absorbing lining section to further contribute to reach required noise residual level.

PSP Vent Silencers, used for lower flows and back-pressures, feature an expansion chamber upstream the final absorptive section with no diffuser at the inlet.

A special sound-proofed weather hood is finally heading flow and noise upward, while delivering an effective rain protection and drainage.

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
  • Start up valve
  • Snort-valve
  • Flash and Blow Down Tanks

Stopson Italiana delivers 30 Vent Silencers to Karbala Refinery in Iraq

Flawless completion of the supply to HDGSK JV for the SCOP refinery plant in Karbala province.

Stopson Italiana has recently completed delivery of 30 silencers to be installed at Karbala Oil Refinery in Iraq for HDGSK JV, the joint venture led by Hyundai Engineering & Construction (HEC) with GS Engineering & Construction Corporation, SK Engineering & Construction Company Limited and Hyundai Engineering Company Limited.

The whole supply has been divided into three batches applicable to different plant sections:

  • 10 vent silencers for the chemical equipment section including vacuum distillation, i.e. steam and mix of steam and methanol or H2, with flow rates from 10 to 40 t/h, temperatures from 388 °C to 456 °C, noise levels 85-90 dB(A) @ 1 m.
  • 15 vent silencers for the petroleum processing section, i.e. steam, mix steam air and N2 with flow rates from 0.5 to 33 t/h, temperatures from 194 °C to 375 °C, noise level 85 dB(A) @ 1 m.
  • 5 vent silencers for the utilities section, i.e.HP-LP-MP-Start-Up steam, with flow rates from 6.6 to 73 t/h, temperatures from 220 °C to 400 °C, noise level 90 dB(A) @ 1 m.

All silencers have been engineered according to the highly demanding EPC and end user’s technical specifications and manufactured in Italy in special materials, including stainless steel for internal components.

2015-11-30 10.42.55Stopson’s Vent Silencers can be installed downstream 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).
SPM Vent Silencers, used for higher flows and back pressure, are based on a combined reactive and absorptive principle for noise reduction: the gases expand to atmospheric pressure through a perforated diffuser, providing a first important step in attenuation; the flow evolves into a sound-absorbing lining section to further contribute to reach required noise residual level.PSP

PSP Vent Silencers, used for lower flows and back-pressures, feature an expansion chamber upstream the final absorptive section with no diffuser at the inlet.

A special sound-proofed weather hood is finally heading flow and noise upward, while delivering an effective rain protection and drainage.

Typical Applications for vent silencers are:

  • Safety Valve (PSV)
  • Relief valve (PRV)
  • Control valve
  • Ejector
  • Start up valve
  • Snort-valve
  • Flash and Blow Down Tanks
oil

Oil market rocked by new Russia-Saudi Arabia deal

Saudi Arabia and Russia agree on oil co-operation that could limit supply.

The news has been spread around in a matter of seconds. Saudi Arabia and Russia together for an ‘historic’ oil market co-operation.
The core of the deal has been focused on the output’s limitation, with the aim to boost the oil prices sharply higher to tackle a global glut. In a joint-statement taken place during the the G-20 summit in China (last Monday), Russia and Saudi Arabia recognized the need to contain excess volatility in the market (source Telegraph). The two oil giants will thereby establish a working group to monitor the market and draft recommendations to keep oil prices steady and ensure solid investments in the industry. Crude oil futures rallied heavily in the build-up to the announcement and pared back slightly afterward. WTI futures for October remained over 3 percent higher on the day, however, at a little under $46 per barrel.
Russian Energy Minister Alexander Novak said that the countries are now discussing the details of a supply freeze deal ahead of an informal meeting of the Organization of Petroleum Exporting Countries (Opec), together with Russia, later this month in Algeria. “We are considering a production freeze as the most efficient tool, concrete parameters are being discussed at the moment,” he argued.
One of the other hot topic concerned the agreement between the two countries to exchange information and experience about new technologies in the oil and gas, and power generation sectors. Considering the several attempts to boost crude prices by freezing OPEC’s output have fallen in the past, the present deal seems to be presented as “historic moment” by the same Novak, particularly because Saudi Arabia has been wedded to keeping output high to hold market share.
In facts, Saudi Arabia is de facto leader of the oil cartel, but Russia is not a member.

 

Stopson Italiana awarded new contract to supply 49 Vent Silencers for Jazan IGCC Project in Saudi Arabia

Major project win from Saipem for the Saudi Aramco – Jazan IGCC Gasification Pack 1 expected to be delivered end of 2016.

Stopson Italiana has been recently awarded by Saipem SpA a major contract for the supply of 15 Oxygen, 15 Process Steam, 15 Start-up Steam and 4 HHP Steam Silencers for the gasification unit at Jazan IGCC (Integrated Gasification Combined Cycle) power plant project. The 2,400 MW Jazan plant will be the world’s largest gasifier-based power plant to be located adjacent to the 400,000-b/d refinery under development at Jazan Economic City, Saudi Arabia, where Stopson Italiana also supplied silencers to JGC Corporation.

sketchThe 49 vent silencers will be engineered according to the highly demanding Saipem and Saudi Aramco’s technical specifications and manufactured in Italy in special materials, including Monel 400 for the Oxygen silencer.

Stopson’s silencers are based on a combined reactive and absorptive principle for noise reduction: the gases expand to atmospheric pressure through a perforated diffuser, providing a first important step in attenuation; the flow evolves into a sound-absorbing lining section to further contribute to reach required noise residual level. A special sound-proofed weather hood is finally heading flow and noise upward, while delivering an effective rain protection and drainage.

Flow rates range from few metric tons per hour to a maximum 270 t/h, targeting a residual sound pressure level of 85 dB(A) at 1 m from equipment.

Stopson’s Vent Silencers are designed to reduce noise level of exhaust piping to the atmosphere for pressurized gaseous fluids, such as air, vapour, natural gas, nitrogen, oxygen, carbon dioxide, etc. They can be installed downstream 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
  • Start up valve
  • Snort-valve
  • Flash and Blow Down Tanks

 

Stopson Italiana Vent Silencers soundproofs the Cold Flow Turbine Test Facility, one of the most world-class avionics project

5 Steam Vent Silencers successfully installed in Poland in the world’s most modern laboratory for aeronautical turbine test.

Industrial soundproofing covers various sectors and applications. Thanks to its expertise, Stopson Italiana is able to provide turnkey service in the acoustic insulation applied to Power Generation, Oil & Gas, Marine and Avio sectors.

For this latter, several noteworthy installations have been delivered. Among these a huge supply of vent silencers with their respective jet air turbine test chambers has been developed to for GE Avio.

The installation of “PoloniAero” was inaugurated at the end of 2015, and it still represents a unique example of cooperation between universities and industry. The structure – one of the largest and most avant-garde laboratories in the world – was financed by EU funds. The objective is the turbine test for low pressure (and next-generation) aeronautical engines, as well as technological demonstrators used for the construction of aeronautical engines.

The Cold Flow Turbine Test Facility combines the scientific expertise of Poland with the aerospace industry innovation. The partners of the Polish Aero scientific-industrial company are Avio Aero, Military Aircraft Works No. 4, the Warsaw University of Technology and the Military University of Technology. The ultimate goal of the choral project concerns the development of aerospace industry activities, including aeronautical turbine testing.

Stopson Vent Silencers are designed to reduce the noise level of exhaust pipes in the atmosphere for pressurized gaseous fluids. They can be installed downstream of any device that acts as a connection between a pressurized gaseous fluid reservoir and the atmosphere. The Steam Vent Silencer can also provide a high or low backpressure to ensure the proper operation of the system.

Noise reduction is achieved by two principles: a reactive section, useful for attenuating low frequencies; and a high frequency absorption section possible by inserting a sound-absorbing material.

Ventilation silencers can be reactive, absorbent or combined, according to the applications and required attenuation, which can reach up to 75 dB (A).

Typical applications for vent silencers are:

  • Safety Valve (PSV)
  • Ventilation Valve (PRV)
  • Control valve
  • Ejector
  • Starting valve
  • Snort valve
  • Flash and Blow Down Tanks

To see all the features in detail, visit Stopson Italiana Vent Silencers page.

Stopson Italiana delivers Engine Exhaust Special Silencer to CHP Plant in Portugal

Successful installation of an engine exhaust silencer for Capwatt Maia Heat Power S.A. Cogeneration plant.

special-silencer-dwg

 

Stopson Italiana has recently supplied a large size exhaust silencer, SM Special Model, for Wartsila engine installed in a Cogeneration Power Plant, located nearby Maia, in Portugal.
Stopson’s engine exhaust silencer has reactive and absorptive modules in a single body. This acoustic device muffles noise caused by exhausting from cogeneration engine, i.e. as exhaust gases pass through the silencer, noise is diffused and progressively attenuated.

pictureThe gas enters the first stage silencing chamber, where the noise is dissipated. Then the process is repeated into the second chamber, which reacts through a special Venturi with the first one. Main functional data: flow rate 45360 kg/h, design temperature of 374°C, pressure drop of 150 mm H₂O, 65 dB(A) residual SPL at 90° and at 1 m from the chimney outlet.

Each silencer reduces noise differently: the larger the size, the higher the reduction. This engine exhaust silencer has required an accurate fuid-dynamic study in order to comply with problems of transportation and assembly, since the exhaust silencer total weight was of 10000 Kg, while ensuring high acoustic performance, in particular at low frequencies, along with with very low pressure drop.

Stopson’s industrial silencers provide the best performance for all engine applications, either standard or customized models, they can reduce sound emission levels without affecting engine performance.
After installation, acoustics performances are usually tested in order to prove compliance of actual noise emissions with required levels and to ensure plant sustainability within the existing environment.