noise emissions Articles
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Entropy approach for mitigation of environmental aviation impact and airport capacity increase
The implementation of the operational procedures to reduce aircraft noise and engine emission in the airport vicinity was under consideration in the paper. Emphasis was put on optimal aircraft operational procedures for noise and emission reduction taking into account interrelations of aircraft noise and engine emission. The task of minimising of aircraft noise impact and engine emission ...
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Case study - Use of the Nor848A acoustic camera on wind turbines
The acoustic camera system Nor848 is a powerful tool to investigate noise sources. In realtime you listen to a beamformed audio signal so that you can hear individual sources one by one. Immediately you can identify the strongest over all noise source in a multisource environment, and you can do the same analysis for single frequencies, 1/3 or 1/1 octave bands or any given frequency range. This ...
By Norsonic AS
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Dual-shear Waste Shredder for Sale
A dual-shear waste shredder is often used for the size and volume reduction of various metals. Often, dual-shears are integrated in complete machine lines, but these machines can also be used as a standalone machine. Important features of the dual-shear are the heavy duty construction in combination with the compact design. The slow running speed in combination with the high cutting force ...
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Catalytic Muffler for Underground Mining
Description Caterpillar Underground Mining required a manufacturer to design, develop and supply a catalytic oxidation muffler for first fit installation in their extreme duty mining vehicles. Challenge The catalytic oxidation mufflers were expected to provide a combination of noise reduction, low levels of nitrogen dioxide and high removal efficiencies in carbon monoxide, ...
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Position Paper on the European Strategies and Priorities for Railway Noise Abatement
Untitled Document Executive Summary Railway noise can be reduced considerably in the near future The Green Paper Future Noise Policy of November 1996 [11] by the European Commission states that the public's main criticism of rail transport is the excessive noise level. This problem will be exacerbated by the modal shift from road and air ...
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Luas Construction - Case Study
The Client The Railway Procurement Agency (RPA) build and maintain Dublin’s light rail transit system. The latest rail project to be undertaken is the Luas Cross City Project. This extension of Dublin’s Luas system will link up existing lines and bring the tram service to new areas of the city. This 5 year project involves a number of construction phases in the city centre and ...
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Required changes in emission standards for high-frequency noise in power systems
This paper discusses some recent developments that make the existing standards on the emission of high-frequency noise in power systems need to be reconsidered. It is shown that it is possible for an equipment to remain below the emission limits while at the same time the disturbance level increases beyond what was intended by the standard document. Further, the change from analog to digital ...
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Case study - Nor848A Acoustic Camera Metro station in Taipei, Taiwan
After the construction of the elevated sky train, too high noise levels were appearing under the line and local communities were complaining. Therefore acoustic absorbing panels were mounted under the metro line at critical sites in order to reduce noise emission. To document the effect of the absorbers a Norsonic Nor848A 1.0 meter acoustic camera was setup for recording and reporting on the ...
By Norsonic AS
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Size, structure and distribution of transport subsidies in Europe
Transport contributes to several environmental problems such as climate change, air emissions and noise and is at the same time favoured by significant subsidies. An EEA report identifies European transport subsidies worth at least EUR 270 to 290 billion a year. Road transport receives EUR 125 billion in annual subsidies, most of it as infrastructure subsidies, assuming that taxes on road ...
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Size reduction of thin films (BOPP / BOPET etc.), heat sensitive materials, tapes, etc.
NEUE HERBOLD SMV series granulators are specially designed for all universal types of applications. Through simple modification the SMV series granulators can be used for massive start-up lumps and purgings, massive profiles and general plastic scrap with extremely wall thicknesses. Also size reduction of voluminous hollow parts such as containers and crates. The SMV series is designed for ...
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Size reduction of thin films (BOPP / BOPET etc.), heat sensitive materials, tapes, big-bags etc.
NEUE HERBOLD SX series granulators are specially designed for extremely high output applications. The application spectrum ranges from film, tangled or bunched tapes and bands, PP big bags, crates or other hollow containers, to the processing of BOPP / BOPET / PP in-line and off-line film extrusion lines. When utilizing a 800 mm (32 in.) rotor diameter in conjunction with a 2000 mm (79 in.) rotor ...
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Granulators for Size reduction of pipes up to 6 meter (20 ft.) length
Neue Herbold SR series granulators are designed and manufactured for the size reduction of full length profiles and pipes eliminating the need to pre-cut the material into shorter lengths. The 6000 mm (20ft.) profiles or pipes are fed horizontally into the granulator. The SR series granulators are used for applications ranging from profiles to extremely thick walled PVC, PP and PE pipes. The SR ...
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Size reduction of profiles up to 6 meter (20 ft.) length
Neue Herbold SR + LP series granulators are designed and manufactured for the size reduction of full length profiles and pipes eliminating the need to pre-cut the material into shorter lengths. The 6000 mm (20ft.) profiles or pipes are fed horizontally into the granulator. Generally the LP series granulators are used for the size reduction of PVC profiles and the SR series granulators are used ...
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Size reduction of loose film, hollow containers, barrels, crates, PVC pipes (thin-walled PE / PP pipes), profile, ...
NEUE HERBOLD granulators (LM series) are specially designed for the size reduction of voluminous, thin walled materials. Typical applications are - the size reduction of loose film ( in-line edge trims) - the size reduction of hollow containers - the size reduction of barrels - the size reduction of crates - the size reduction of PVC pipe (thin-walled PE/PP pipe) - the size reduction of ...
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Size reduction of loose film, hollow containers, barrels, crates, PVC pipes (thin-walled PE / PP pipes), profile,
Neue Herbold LM series granulators are specially designed for the size reduction of voluminous, thin walled materials. Typical applications are - the size reduction of loose film ( in-line edge trims) - the size reduction of hollow containers - the size reduction of barrels - the size reduction of crates - the size reduction of PVC pipe (thin-walled PE/PP pipe) - the size reduction of profiles ...
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Controlling combustion noise in direct injection diesel engine through mechanical vibration measurement
The next generations of direct injection diesel engines have greatly improved their performances compared with petrol engines. However, one of the pending subjects is the noise and vibration levels, due to working cycle itself. The design effort to reduce the emissions of noise and vibration transmitted to the vehicle's driver could be lessened because of the assembly process variation. In this ...
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Boskalis and our BBV Pumps environmentally friendly high flow pump unit
Boskalis Nederland is a part of Royal Boskalis Westminster N.V. Boskalis was established in 1910 and has expanded from a local dredging contractor to a leading global maritime services company with over 11.000 employees. Originally, dredging and earth moving were the core activities of the company. They are now additionally active in the dredging and inland infra, and offshore energy sectors. ...
By BBA Pumps BV
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Casella BOUNDARY Guardian helps to control noise and dust on major London construction project - Case Study
Casella‘s BOUNDARY Guardian is helping to ensure noise compliance and control of air quality at BSkyB’s campus redevelopment site, bringing peace of mind to site operators, the client and the local community. The BOUNDARY Guardian is a system for web-based remote monitoring of noise and/or dust emissions that ensures compliance with regulatory limits an essential factor in ...
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Netherlands’ Mobile Emergency Pumps Provide Rapid Flood Response
The Western European nation has 20 mobile diesel-driven pumps on standby, ready to assist in national and international emergencies. One of the smallest and most densely populated countries in Western Europe, the Netherlands has nearly 10 million residents who live and work below sea level. Without active water management and primary flood defenses, the Netherlands’ lowest point would be ...
By BBA Pumps BV
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BBA Mobile Emergency Pumps Provide Rapid Response for Floods
Netherlands’ Mobile Emergency Pumps Provide Rapid Flood Response In its latest edition, the North American PUMPS & SYSTEMS magazine publishes an in-depth article featuring the history and current usage of emergency mobile pumps. The Western European nation has 20 mobile diesel-driven pumps on standby, ready to assist in national and international emergencies. One of the smallest and ...
By BBA Pumps BV
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