نتایج جستجو برای: nox and so2
تعداد نتایج: 16829620 فیلتر نتایج به سال:
Increasingly stringent limits for NOx and SO2 emission are forcing the investigation of new reduction methods. This study was conducted to determine combination primary measures, i.e., flue gas recirculation (FGR) excess air effects on sulfur, nitrogen hydrocarbon emissions, in boiler gas. Experimental research performed using an experimental, small-scale (20 kW) model industrial biofuel boiler...
Secondary pollution derives from complex non-linear reactions involving precursor emissions, namely VOC, NOx, NH3, primary PM and SO2. Due to difficulty to cope with this complexity, Decision Support Systems (DSSs) are key tools to support Environmental Authorities in planning cost-effective air quality policies that fulfill EU Directive 2008/50 requirements. The objective of this work is to fo...
Harmful ecological effects caused by the emission of gaseous pollutants like sulfur dioxide (SO2) and nitrogen oxides (NOx), can be reduced by load adequate distribution between power plants. However, this leads to a noticeable increase in their operating cost. In order to eliminate this conflict, and to study the trade-off relation between fuel cost and emissions, an approach to solve this mul...
آلودگی هوا از پیامدهای فعالیت بشر، بهویژه در قرن بیستم است که آثار مستقیم و غیر مستقیمی بر انسان و محیط پیرامون آن دارد. محققان محیط زیست و اکولوژیستهای انسانی مطالعات زیادی در زمینة تحلیلکمیو پیش بینی آلودگی هوا انجام دادهاند. سریهای زمانی یکی از روشهای مطالعه تغییرات زمانی پدیدههای طبیعی است.اهمیت مطالعة زمانی آلودگی هوا در تأثیر فصلی آن برسلامتی انسان است. در این مطالعه، مجموعة زمانی...
Alpha-pinene oxidation was studied in the CERN CLOUD chamber under near atmospheric conditions using varying levels of different oxidizers (i.e., O3, HOx and NOx with differing gas mixture compositions) in the presence and absence of UV-radiation, SO2 and additional organic traces; ammonia (NH3) and dimethylamine (DMA). The oxidation products and their evolution due to aging in the chamber were...
Articolul prezintă o aplicaţie în tehnica microundelor bazată pe utilizarea unor materiale ceramice puternic absorbante de microunde, care dezvoltă un efect de oxidare (post-ardere) termică a emisiilor poluante (CO, SO2, NOx, componente organice volatile COV) rezultate în urma incinerării deşeurilor medicale periculoase. Sunt prezentate aspecte teoretice şi experimentale ale comportării în câmp...
To examine the effects of China’s national policies of energy conservation and emission control during 2005– 2010, inter-annual emission trends of gaseous pollutants, primary aerosols, and CO2 are estimated with a bottom-up framework. The control measures led to improved energy efficiency and/or increased penetration of emission control devices at power plants and other important industrial sou...
Будівельна промисловість є одним з лідерів щодо забруднення довкілля внаслідок вичерпування ресурсів і затрат енергії або утворення відходів. Крім того, спостерігається значна емісія від парників, кислотних газів від будівельної промисловості. Цемент належить до одного із найвикористовуваніших будівельних матеріалів у світі, а його виробництво невпинно зростає. А цементна індустрія є дуже енерг...
Advances in vehicle design and fuel quality mean cars can be made cleaner and more efficient. Lower emissions of carbon monoxide (CO), nitrogen oxides (NOx), sulphur dioxide (SO2), particles (including the fine dust and soot PM10) and hydrocarbons (HCs) also known as volatile organic compounds (VOCs) will lead to better urban air quality and less summertime smog. Lower emissions of carbon dioxi...
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