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Emission legislation that applies to engines used in shipping, rail and land power generation becomes increasingly strict. E.g. IMO Tier III applicable to sea-going vessels limits the NOx emission by 75% compared to IMO Tier II. Attaining these without sacrificing fuel consumption is a big...
Persistent link: https://www.econbiz.de/10010939840
The effects of tumble combined with EGR (exhaust gas recirculation) on the combustion and emissions were experimentally investigated in a spark ignition engine in this study. A low pressure loop EGR system and a variable tumble valve in intake ports were employed, by which wide range of EGR...
Persistent link: https://www.econbiz.de/10010808568
To control diesel emissions of NOx and PM (particular matter), there has been increasing interest in EGR (exhaust gas recirculation) stratification in recent years. However, only a few works have discussed in-cylinder distribution using two-dimensional EGR concentration contour. For a better...
Persistent link: https://www.econbiz.de/10010811553
The boiler of a premixed combustion system with EGR (exhaust gas recirculation) is investigated to explore the potential for increasing thermal efficiency and lowering pollutant emissions. To achieve this purpose, a thermodynamic analysis is performed to predict the effect of EGR on the...
Persistent link: https://www.econbiz.de/10011053097
Persistent link: https://www.econbiz.de/10012693101
We develop a spatial model of energy exploitation where energy sources are differentiated by their geographic location … and energy density. The spatial setting creates a scaling law that magnifies the importance of differences across energy … plays must first boom and then bust. For both renewable and non-renewable energy sources we link the size of exploitation …
Persistent link: https://www.econbiz.de/10010292712
by analysing the consequences of becoming an exporter on a firm's energy consumption. We show both theoretically and … relatively large quantities of fuel decrease their energy use after exporting, perhaps by adopting more fuel-effcient technology …
Persistent link: https://www.econbiz.de/10010292844
export destinations of Europe and rest of the world (ROW) to establish whether a firm adjusts its energy use in response to a … decision to start exporting to a more (Europe) or a less (ROW) regulated destination. Although on average, no energy … adjustments are found for these destinations, focusing on the most polluting industries or the most energy-intensive firms reveals …
Persistent link: https://www.econbiz.de/10010293686
environmental policies that affect prices and energy demand are mainly effective in directing innovation by small specialized firms …
Persistent link: https://www.econbiz.de/10010294286
This paper describes the energy sector in the Mediterranean and MENA (Middle East and North Africa) countries. It first … analyses the production of energy by fossil and renewable sources and discusses the increasing demand in the area and its … consequences. It describes the policy frameworks to promote renewable energy as well as fossil-fuel subsidies, which are still …
Persistent link: https://www.econbiz.de/10010294331