Engine Emissions Articles on Environmental XPRT

A quick guide to oil analysis for engine test applications

Reliability testing is a very important component of new engine development. Engineers need to fully understand and chart the engine lifetime performance under a variety of conditions before mass production may be considered. Many important performance data parameters are collected in real time through the many different types of sensors that are connected to the engine in the test cell and oil ...

Jun. 23, 2017

By Spectro Scientific

Process-generated contaminants

Overview: There is not currently a formal and universally recognised definition of a process-generated substance. Process-generated contaminants can be generated as emissions from combustion processes, abrasion and/or other processes that physically or chemically degrade or otherwise modify the starting material(s), e.g. degradation/composting of organic materials. Such ...

Jul. 20, 2017

By European Agency for Safety and Health at Work

Expert Installation Services Soar to New Heights

Along with providing equipment to solve customer’s complex VOC, NOx, and Odor pollution challenges, we also provide installation services. I was on site for the recent “lift” of a new QUADRANT SR-35,000 Thermal Oxidizer (TO). Capital equipment, like a Thermal Oxidizer, is designed to operate for many years; however wear and tear eventually may require the equipment to be ...

Jul. 21, 2017

By Catalytic Products International (CPI)

How conditions affect cookies and air pollution control solutions

Chocolate chip cookies are one of my favorite treats. Butter, sugar, eggs, flour, vanilla, and, of course, chocolate chips. Combine the ingredients together and you get a delicious cookie. Somehow, using the same ingredients the cookies do not always turn out the same. Sometimes they are thinner and crispier. Other times, they are soft and chewy. After watching cooking shows, I have come to ...

Jun. 23, 2017

By Catalytic Products International (CPI)

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 ...

Jun. 27, 2014

By Inderscience Publishers

Performance and emissions of a dual fuel operated diesel engine

Vegetable oil and its esters (biodiesel) are the renewable alternative fuels that can be used as a substitute for diesel in the diesel engines. The vegetable oil fuelled diesel engine results in lower efficiency and higher smoke emission. Hence in this work, an attempt has been made to use inedible and under utilised mahua oil (MO) as a substitute for diesel by fumigating liquefied petroleum gas ...

Apr. 24, 2012

By Inderscience Publishers

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 ...

Jan. 1, 2014

By Bionomic Industries Inc.

Emissions Test Report - Gas Compressor Engines

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

Nov. 4, 2005

By DCL International Inc.

Performance and emission characteristics of a DI compression ignition engine operated on PODL biofuel

This paper presents the results of investigations carried out both numerically with the CFD code CONVERGE and experimentally on a single-cylinder, four stroke, direct-injection, CI engine. The tests are performed with neat diesel, neat palm oil (PO) and different blends of PO and the D-limonen solvent (PODL), like 10%, 15% and 20% by mass of D-limonen in PO (PODL10, PODL15 and PODL20). Engine ...

Jun. 27, 2011

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 ...

Sep. 11, 1989

By DCL International Inc.

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 ...

Jun. 26, 2012

By Inderscience Publishers

Emissions and performance of a stationary diesel engine run on biodiesel blends

This paper presents an investigation into the effect of biodiesel blending on emissions and efficiency in a stationary diesel engine. Rapeseed based biodiesel blended in increments of 25% with fossil diesel. The emissions of CO2 show a decrease in emission (g/kWh) with increased engine load. Within the range of tests carried out, the NO ...

Nov. 17, 2011

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 ...

Jan. 7, 2008

By Avogadro Environmental Corporation

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 ...

Jul. 15, 2009

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 ...

Jan. 1, 2011

By Inderscience Publishers

Development of automotive DI diesel engine to comply with stringent emission norms

Relatively lower fuel energy cost, higher fuel conversion efficiency and ability to take higher loads are the attracting features of direct injection diesel engines. However, diesel engines are still posing the challenges to both researchers and manufacturers in terms of high soot and NOx emissions. To overcome these difficulties, small diesel engine manufacturers are ...

Jul. 19, 2012

By Inderscience Publishers

Study of the performance and exhaust emissions of a spark-ignited engine operating on syngas fuel

To resolve the problem of depletion of petroleum based liquid fuels, various solutions have been proposed. One of them is the use of gaseous fuels that are generated from the gasification of woods, namely syngas or wood-gas fuels, as full supplement fuels in spark ignition internal combustion (IC) engines. This fuel consists of nearly 40% combustible gases, mainly hydrogen and carbon monoxide ...

Apr. 4, 2007

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 ...

Jan. 3, 2011

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 ...

Aug. 1, 1999

By European Commission, Environment DG

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 ...

Mar. 6, 2015

By Inderscience Publishers

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