engine emissions measurement Articles

  • NO x emission model of turbofan engine

    During last decade a lot of investigations also focused on the evaluation of aircraft engine impact on local and regional air quality in the vicinity of the airport. The emission inventory of aircraft engines are usually calculated on the basis of certificated emission indexes, which is provided by the engine manufacturer and reported in the database of ICAO. The certificated emission indices ...


    By Inderscience Publishers

  • 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 ...


    By Vestlandsforsking

  • Black carbon emissions of individual cars measured under real conditions

    Measurements of individual vehicle emissions are usually made in laboratory tests. In this study, researchers followed cars driving in real conditions to measure emissions of air pollutants, including black carbon and nitrogen oxides. The study shows that diesel cars contribute disproportionately to air pollution, and highlights the value of on-road measurements. Vehicle traffic is a major source ...


    By European Commission

  • Automotive Development and Progress in HORIBA`s Emission Measurement Technologies

    The progress in HORIBA's emissions measurement systems has been closely connected to trends in vehicle development. Innovations in automotive technology, stemming from emission regulations and implementation of computer control systems, have especially had great influence on analytical technologies. With the advent of emission regulations, HORIBA developed its first automotive emission analyzer, ...


    By HORIBA Europe GmbH

  • Characterising emissions from private passenger vehicles using engine operating patterns

    A method to simulate emissions factors using frequency distribution plots of engine speed and engine load is proposed. The distribution plots and corresponding emissions factors were developed from speed time series’ of real-world driving cycles and physical properties of a range of private passenger vehicles tested at the EMPA. Emissions factors were estimated for a set of simultaneously ...


    By Inderscience Publishers

  • Catalytic Exhaust Emission Control of Small Internal Combustion Engines

    ABSTRACT Gaseous emissions present in the engine exhaust of on-road motor vehicles are subject to stringent exhaust emission 2ontrol standards for carbon monoxide (CO), hydrocarbons, and ...


    By DCL International Inc.

  • Characterising emissions from private passenger vehicles using engine operating patterns

    A method to simulate emissions factors using frequency distribution plots of engine speed and engine load is proposed. The distribution plots and corresponding emissions factors were developed from speed time series' of real-world driving cycles and physical properties of a range of private passenger vehicles tested at the EMPA. Emissions factors were estimated for a set of simultaneously ...


    By Inderscience Publishers

  • Emission Testing of Engines to be Installed in Non-Road Mobile Machinery

    The European Commission has founded a project on emission testing – 'Emission Testing of Engines to be installed in Non-Road Mobile Machinery'. The project was undertaken by Abgasprüfstelle Berlin-Adlershof GmbH in Germany. The work is a part of emission inventory of spark-ignition engines to be used as a basis for a future amendment of the Directive 97/68/EC. The inventory covers seven different ...

  • Performance and emission characteristics of CI engine, fuelled with diesel and oxygenated fuel blends

    Vegetable oils are a potential alternative towards partial or total substitution of diesel fuels. In this study, we used ethanol as the solvent, and a bio fuel enhancer as additive to explore the possible use of higher percentages of biodiesel in an unmodified diesel engine. Biodiesel was produced from cashew nut shell liquid (CNSL) by pyrolysis process. A mixture containing 80% (by volume) of ...


    By Inderscience Publishers

  • `Measure Environmental Performance,` published in Pollution Engineering, August 2002

    Measuring Environmental Performance In a corporate climate that embraces the adage that “what matters gets measured,” the ability tomeasure and evaluate environmental performance allows environmental staff to demonstrate thevalue of its programs and gain equal footing with other business objectives. The process ofmeasuring environmental performance entails developing goals, ...


    By Trinity Consultants

  • Engine Testing

    Engine testing involves measurement of rotating speed and torque of the engine by applying load controlled by a dynamometer connected to its output shaft. HORIBA has developed various types of dynamometer for the purpose of engine testing. They are mainly classified into two types; one is absorbing only dynamometer such as hydraulic dynamometers and eddy-current dynamometers, the other is ...


    By HORIBA Europe GmbH

  • Forklift Emissions Analyzers

    Forklifts are commonly used in warehouses of various size and capacity for the movement and shipping of goods; however, the unoptimized engines can produce excess quantities of silent and deadly CO gas that can risk the health and safety of the workers. When forklifts are brought in for service usually the CO gas isn't measured. If the CO gas isn't measured and the engine properly optimized then ...

  • Emission Testing and Monitoring

    Presented in Track B4: EMISSION TESTING & MONITORING at EUEC 2011, January 31 Phoenix, Arizona B4.1  | Update on PM2.5 and Condensable Particulate Matter Emissions Measurement Methods Larry Hottenstein |  Partner, Environmental Resources Management Following the promulgation of the PM2.5 ...

  • An end to the problem of particle emissions

    Austrian biomass heating systems guarantee an 80% cut in emissions. Recent studies have shown that these modern domestic boilers offer a significant reduction in particles, emitting fewer contaminating agents than previous generation boilers and wood stoves – with more than 100mg / ml of particles. The future will be based on new biomass combustion technology which cuts dust emissions from ...

  • Becoming a Zero Emissions Brewery

    Diverting 600 tons annually from landfills turn hops, grains, pallets, cardboard, glass, office paper and shrink wrap into major savings — and great beer! ALMOST AS FAMOUS for reducing its waste as for making great beer, Mad River Brewing Company of Blue Lake, California is renowned for its Steelhead and Jamaica ales as well as its ten Waste Reduction Awareness Program (WRAP) awards ...


    By BioCycle Magazine

  • Joint implementation of CO2 emission reduction measures between Switzerland and Colombia

    This study offers insights about the identification of joint implementation (JI) projects to curb carbon dioxide (CO2) emissions in Colombia, which Switzerland could finance to comply with emission reduction commitments. The method uses MARKAL, a bottom-up engineering model of the energy system. Based on the Colombian MARKAL model, this study determines first a baseline ...


    By Inderscience Publishers

  • Low emission combustion of Oilgas

    Type     HOFGAS®- IFM4c/2300/150 Commissioning     June 2001 Site     Cistierna (ES) Situation Enervisa SA in Cistierna own a plant for the recycling of old oils. The oil is evaporated and condensed into high-grade fuel. The reclaimed fuel is used in diesel engines for production of electricity as well as in burners for the ...


    By Hofstetter BV

  • Reducing Odor and VOC Emissions

    The Montgomery County Regional Composting Facility (MCRCF) in Silver Spring, Maryland is designed to process 400 wet tons/day of lime amended biosolids from the Blue Plains Wastewater Treatment Plant (WWTP) in Washington, D.C. Recently, political pressures forced operations to cease at the MCRCF. Although the aerated static pile composting plant’s fate has not been completely decided, its owner, ...


    By BioCycle Magazine

  • Warehouse Optimization: Balancing Equipment Performance and Worker Safety Through Emissions Measurements and Air Quality Monitoring

    Successful warehouse functionality is dependent on both maximizing equipment performance and providing a safe and healthy environment for workers that encourages productivity. However, these two factors are often at odds with each other as warehouse equipment such as forklifts, burnishers and delivery trucks emit toxic gases that can have the potential to create poor indoor air quality which ...

  • An experimental investigation of the performance and emissions characteristics of a direct injection compression ignition engine running with LPG

    Existing diesel engines are under stringent emission regulation particularly of smoke and particulate matter in their exhaust. The potential benefits of using liquefied petroleum gas (LPG) as an alternative fuel in diesel engines are both economical and environmental. In the present paper an experimental research was carried out on an I.C. engine laboratory single cylinder, four-stroke variable ...


    By Inderscience Publishers

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