nox emissions Articles

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High Tech Environmental Vehicles for High Tech Environmental Equipment Supplier

by Enviro Technology Services plc  (Apr. 14, 2015)

Here is a conundrum. What do you do if you are a leading environmental monitoring technology supply firm, specialising in air quality monitoring, and your single biggest environmental impact comes from your own fleet of company vehicles? The problem is compounded when you factor in your large team of field service engineers travelling the length ...

Emissions analyser helps manage power station

by Quantitech Ltd  (Feb. 20, 2015)

A multiparameter emissions monitor at Thetford power station is being used to demonstrate to the Environment Agency that the plant is performing within the conditions of its environmental permit. However, the data from the analyser, which was supplied by Milton Keynes based Quantitech, also performs a vitally important role in helping to manage ...

A method to extend flamelet manifolds for prediction of NOx and long time scale species with tabulated chemistry

by Inderscience Publishers  (Oct. 28, 2014)

Numerical simulation is currently used to help design low NOx devices for aircraft engines. In order to improve the prediction of pollutant species, combustion models based on tabulated chemistry have been commonly used in recent years. However, the short time scales of usual flamelet manifolds can lead to errors concerning the NO prediction in ...

Impact of ambient air temperature and injection timing on reduction of engine out emissions of DI diesel engine operating under the influence of oxygen enriched hydrogen gas

by Inderscience Publishers  (Jan. 20, 2015)

The present experimental work is a study of the impact of ambient air temperature and the injection timing of diesel fuel on reduction of engine–out emissions of DI diesel engine, operating under the influence of oxygen enriched hydrogen gas. Here the oxygen enriched hydrogen gas was produced by the process of water electrolysis. The produced gas ...

Low-Nox burner retrofit experiences in cracking furnaces at Dow, Terneuzen

by Callidus Technologies - part of UOP, a Honeywell Company  (May 3, 2013)

Abstract: Dow Benelux B.V. (Dow) operates three ethylene plants from the Netherlands, all based within its Terneuzen facility. In 2009, Technip Stone & Webster Process Technology (Technip) studied options to reduce the NOx emissions from the cracking furnaces of cracker 1. The results of this study, combined with the experience elsewhere ...

A novel approach for modelling of NOx emission reduction in a tangentially fired coal boiler

by Inderscience Publishers  (Jun. 24, 2013)

In this research paper, predictive modelling of NOx emission of a 210 MW capacity pulverised coal–fired boiler and combustion parameter optimisation to reduce NOx emission in flue gas is proposed. The effects of oxygen concentration in flue gas, coal properties, coal flow, boiler load, air distribution scheme, flue gas outlet temperature and ...

NOx Emissions trading scheme repealed in the Netherlands — Global Impacts?

by Enhesa - Global EHS & Product Compliance Assurance  (Feb. 5, 2013)

The once-trailblazing Dutch Nitrogen Oxides Emission Trading Scheme (NOx ETS) is to be repealed: what are the effects? In recent years, Emissions Trading Schemes have gained momentum around the world.  Hundreds upon thousands of companies have had to adapt to be able to handle the effects of more stringent regulation. The Netherlands ...

Wastewater Treatment Plant Monitors Greenhouse Gas Emissions

by Gasmet Technologies Oy  (Apr. 16, 2014)

Globally, little attention is paid to gaseous emissions from wastewater treatment processes. This contrasts greatly with the regulatory monitoring that is applied to the quality of water emissions from such facilities. However, in Helsinki, Finland, a large municipal wastewater treatment facility continuously monitors its emissions of greenhouse ...

Effect of EGR on performance and emission characteristics of diesel engine at advanced injection timing

by Inderscience Publishers  (Mar. 31, 2014)

This work attempts to reduce the smoke density of diesel engine by advancing the fuel injection timing and also the NOx emission of the engine by introducing EGR at the advanced injection timing. A single cylinder 4.4 kW air cooled, naturally aspirated, stationary diesel engine was utilised for the investigation. Engine tests were conducted at ...

European Union emission inventory report 1990–2012 under the UNECE Convention on Long-range Transboundary Air Pollution (LRTAP)

by European Environment Agency (EEA)  (Jun. 30, 2014)

This document is the annual European Union (EU) emission inventory report under the United Nations Economic Commission for Europe (UNECE) Convention on Long-range Transboundary Air Pollution (LRTAP) (UNECE, 1979). The report and its accompanying data constitute the official submission by the European Commission on behalf of the EU as a party, to ...

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