engine emissions 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

  • Experimental method for marine engine’s emissions analysis

    Abstract The world is considering various solutions to reduce exhaust emissions, the use of alternative fuels and the development of more efficient marine engines. IMO the company gave guidance for future borders of individual exhaust components, taking into account a variety of applications and conditions for the operation of marine engines. Engine ...


    By ECO PHYSICS AG

  • Emissions Test Report - Gas Compressor Engines

    INTRODUCTION In 2004, Northeast Texas Air Care (NETAC) commissioned a pilot project to demonstrate the effectiveness of available ...


    By DCL International Inc.

  • Putting the Lid on Emissions - Food Engineering case study

    While the aroma of a cooked steak may be enticing to some, residents near a cooked-meat facility did not appreciate it. Polarized Meat Company of Dunmore, PA produces high-quality meat products designed to reduce preparation time at restaurants. Certain products are preformed and pre-cooked, often with grill marks added to enhance the products' visual appeal and flavor. Both the incoming meat ...


    By Bionomic Industries Inc.

  • Engine emissions analyzer further improves Intertek’s emissions testing capability - Case study

    An advanced FTIR analyser installed at Intertek’s engine test facility in Milton Keynes is enabling engineers to improve the quality of their tests on the gaseous components of engine exhaust emissions. ...


    By Gasmet Technologies Oy

  • 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.

  • 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 ...

  • 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

  • Exergy analysis of combustion characteristics and NOx emissions of a dual–fuel engine

    The combustion characteristics and NOx emissions of compression ignition engines working on a dual fuel mode are investigated numerically and their exergetic efficiencies are determined. The model has been validated with available experimental results. The simulation results show that dual fuel engine combustion and trend of NOx ...


    By Inderscience Publishers

  • Retrofitting diesel engines: reducing the emissions of our ideal power source

    Over the past several years, Avogadro Environmental has been working with a number of clients to develop proactive environmental programs as part of their EPA Performance Track and ISO 14001 management systems.  Many client companies that are proactively implementing measures to reduce their environmental footprint are looking for ideas.  Diesel engine retrofits for off-road stationary and mobile ...

  • Emissions Measurement Advancement

    Southwest Research Institute (SwRI) and Sierra-CP Partner To Bring Industry Breakthrough Regulatory activity surrounding solid particle number has become one of the more difficult challenges for engine and vehicle manufacturers today.  Sierra and Southwest Research Institute (SwRI) have entered into an agreement to commercialize and produce SwRI’s fully ...


    By Sierra Instruments, Inc.

  • 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 reduction methods and split fuel injection in a marine four-stroke engine

    Abstract The new emission legislation for sea-going vessels issued by the International Maritime Organization (IMO) requires drastic reduction in exhaust gas nitrogen oxides (NOX), and the combination of different primary methods can be an interesting solution without increasing remarkably the machinery. In this paper, the Miller cycle and the dilution with exhaust gas ...


    By ECO PHYSICS AG

  • 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

  • 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

  • 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

  • The emission characteristics of a compression ignition engine operating on castor oil methyl ester

    Diesel vehicles are a major form of transportation, especially in developing countries. Recent concerns over the environment, increasing fuel prices and the scarcity of its supply have promoted interest in the development of alternative sources of petroleum fuels. In this investigation, castor oil methyl ester was prepared by transesterification using potassium hydroxide (KOH) as a catalyst and ...


    By Inderscience Publishers

  • A constant eye on emissions

    Due to increasingly rigorous requirements for regulatory and permit compliance, organisations are seeking more from all compliance support systems. The ability to expand systems to encompass new, or migrate existing, regulatory calculations used to monitor environmental performance is vital. Planning strategically for a scalable and sustainable system has been shown to reduce overall compliance ...


    By Wood Group Mustang, Inc.

  • 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 ...

  • New Filtration Systems for the Control of Exhaust Emissions from Light-Duty Diesel Engines

    The paper includes the design, installation and testing of two different diesel particulate filter systems for light-duty diesel engines. The systems were installed on mining vehicles at Kidd Creek Mine in ...


    By DCL International Inc.

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