engine emissions Articles
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Low-mass PM analyzer MEXA-1370PM — Improvement of the Performance for PM Composition Analysis —
Particulate matter (PM) emitted from engines is currently measured by the filter weight method. The filter weight method passes diluted emission gases through a filter collecting the PM, and post test weighs the mass of the collected PM on a precision balance. However, this method is time consuming, and with decreasing PM emission volumes, improvements in accuracy were needed. So the MEXA-1370PM ...
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Background - Particle size is not well defined
Background - Particle size is not well defined Fine and nanoparticles can be defined in many ways. Especially when defining the particle size and concentration. Particle size can be measured either off-line or on-line. Off line techniques typically give out particle filter mass concentration. Off-line techniques are seldom used to define particle size. When this is done, electron microscopy is ...
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Diesel Particulate Filters for Gensets in New York City
Description Various portable diesel powered gensets, operating in a downtown urban environment (Manhattan, New York City). The gensets are used for powering construction equipment in a subway expansion project. Challenge The diesel particulate filters were required to meet local standards for particulate reduction. The units were expected to operate maintenance free despite the ...
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Exhaust Gas Treatments for NOx Reduction to Add to Global Warming
The enforcement of year 2007 stringent emission norm for reduced NOx reduction/oxides of nitrogen gases from the diesel exhaust and the after treatment to reduce them will add to global warming by several fold according to renowned engine combustion kinetics, emission control process expert and inventor -Mr.Srinivasan Gopalakrishnan, Hydrodrive Systems & Controls Pvt. Ltd, India. His ...
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Diesel Particulate Filters in the City of London - Case Study
The catalysed wall flow soot filter was designed and installed in the fourth quarter of 2008 to treat the Particulate Matter (PM), Volatile Organic Compounds (VOCs) & Carbon Monoxide (CO) in the exhaust gases from the outlet of an MTU 12V000G23E emergency generator installed in the basement in the financial district London EC2R. AirProtekt Catalysed Wallflow Particulate Filter is a system ...
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In-Mine Field Trials of a Particulate Filter System with On-Board Electrical Regeneration
ABSTRACT The need to improve air quality in many North American mines is clear, with stringent new diesel emission regulations being proposed by MSHA. In response to these changing demands from customers, DCL has developed an electrically heated active sootfilter regeneration system for mining vehicles. Mining production vehicles that have often been borderline soot filter applications in the ...
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Pegasor Mi3 - Background - Particle size is not well defined
Fine and nanoparticles can be defined in many ways. Especially when defining the particle size and concentration. Particle size can be measured either off-line or on-line. Off line techniques typically give out particle filter mass concentration. Off-line techniques are seldom used to define particle size. When this is done, electron microscopy is typically used to measure particle geometric ...
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School bus retrofits one local air
The Hamilton County Department of Environmental Services, a local air agency covering the Greater Cincinnati Area in Southwest Ohio, has experienced many successes and failures obtaining grant money to fund school bus retrofits. However, seven years of persistent work has paid-off enormously. The adverse health effects of diesel exhaust were making national headlines in the early 2000s. The U.S. ...
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Case study - Engine cell exhaust: Catalytic oxidizer
Overview Endurance testing of outboard motors for boats has typically been done in lakes and sometimes on barges. This testing was time consuming, presented logistic problems and removed the testing from the R & D department and the factory. When a company in Oklahoma decided to build their own endurance test cell area, the Environmental Protection Agency required them to control the ...
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Diesel Particulate Filter Testing with Vehicle Data Acquisition
Delphin Expert Logger Vehicle Data Acquisition and Control System CAS DataLoggers recently provided the vehicle data acquisition solution for Twin-Tec, a German developer and manufacturer of environmentally friendly products and technologies for reducing exhaust emissions, including a wide range of diesel particulate filters and catalytic converters for automotive applications. TwinTec was ...
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Reducing the cost of emissions testing – Case Study
In the early 1970¹s, the U.S. Environmental Protection Agency (EPA) was formed in response to growing concern about air quality. The EPA developed emissions regulations that targeted the carcinogenic impact of engine exhaust, and set tough regulatory standards for manufacturers to develop cleaner engines. Engine makers needed an instrument that could accurately measure the quantity of ...
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New BA150KS DriveOn has the lowest Life Cycle Costs
BBA Pumps is proud to introduce the new BA150KS DriveOn®. A mobile 6-inch sewage pump with the lowest life cycle costs in the market. This new pump delivers enormous cost savings on both fuel and maintenance. In addition, the pumpset is much less harmful to the environment. Never before has sewer bypass pumping been this sustainable and cost ...
By BBA Pumps BV
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Combinations of Measures for Reduction of NOx & Nanoparticles of a Diesel Engine
Reduction of NOx- and particle emissions of Diesel engines is worldwide an important challenge for the engineers. Some unregulated components, like NO2, NH3 and naoparticles NP came in the focus of attention in the last years.Application of EGR and / or SCR can lower NOx, using RME (Bxx) can increase NOx. What happens with NP, parameter which enters in some further steps of exhaust gas ...
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