combustion control Articles

  • Why Are CHP Closing All Over The World?

    Burning of coal nowadays has become a big problem. The main reason for this is a rapid increase of mankind. So, China burns half of coal in the world. Since 2000 the share of coal in world energy production has increased from 25 to 30%, and the Chinese economy is responsible for 82% of this growth. In Beijing, it is customary to use ...


    By Lumex Instruments Group

  • Ammonium, nitrate, and total nitrogen determination in fly ash

    Fly ash is a by-product of the combustion of pulverized coal and is composed of small particles. The composition of the fly ash may vary considerably, however, all fly ashes contain substantial amounts of silicon dioxide (SiO2), aluminum oxide (Al2O3) and calcium oxide (CaO). Nowadays, air pollution control standards require a separation of flue gas before being released to the atmosphere. Fly ...


    By BÜCHI Labortechnik AG

  • Trace elements - controlling emissions from coal combustion

    International and national legislation is increasingly being applied to trace element emissions. Although emissions have decreased for a variety of reasons in many developed countries, continued use of coal and more successful control strategies in other sectors mean that coal combustion is still a relatively important source of some trace elements, especially mercury. Existing pollution control ...


    By Inderscience Publishers

  • Low emission combustion of Oilgas

    Type     HOFGAS®- IFM4c/2300/150 Commissioning     June 2001 Site     Cistierna (ES) Situation Enervisa SA in Cistierna own a plant for the recycling of old oils. The oil is evaporated and condensed into high-grade fuel. The reclaimed fuel is used in diesel engines for production of electricity as well as in burners for the ...


    By Hofstetter BV

  • Redundant combustion plant for Novartis

    Type     HOFGAS®- IFM4c/2200/1500/60/180 Commissioning     2004 Site     Novartis (Basel, CH) Situation In order to prevent production failure due to missing redundancy in the flue gas clean up, Novartis required an additional system. During different production processes exhaust air load with organic components is formed. ...


    By Hofstetter BV

  • High Temperature Combustion of Biogas

    High Temperature Combustion of Biogas Efficient combustion of biogas Controlled and concealed combustion Combustion temperature > 900°C Residence time more than 0.3 s Insulated combustion chamber High safety standard The HOFGAS® - IFL4c high temperature flare provides safe and environmentally-friendly combustion of biogas. The exhaust gas ...


    By Hofstetter BV

  • Understanding the dangers of combustible dust

    Paper shredding is growing into a big business. Recycling and the green movement certainly planted the seeds, but regulators have added the fertilizer. Industry-changing laws have been passed to govern document security in accounting, healthcare and banking, and shredders of many varieties are becoming the tools of those trades.Five or six years ago Warde Comeaux knew only a few people who ...

  • 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.

  • A diesel compound HCCI combustion engine based on injection strategy control

    This paper presents a compound combustion technology of "Premixed Combustion" and "Lean Diffusion Combustion" for the purpose of realising the concept of homogeneous charge compression ignition (HCCI) combustion in a DI diesel engine. The premixed combustion is achieved by the technology of multi-pulse fuel injection. The start of pulse injection, injection-pulse number, injection period of each ...


    By Inderscience Publishers

  • Low emission combustion of landfill gas

    Type     HOFGAS®- Efficiency 2000 (3x) Commissioning     July 2002 Site     Ämmäsuo Landfill (Espoo, FI)  SituationÄmmässuo landfill is located in Espoo, about 20 km from Helsinki. The landfill is the largest one in Finland and one of Europe’s largest. In order to reduce the greenhouse gas emissions and eliminate ...


    By Hofstetter BV

  • Size reduction of substitute combustibles (RDF)

    The new pilot installation of SITA Wiebe GmbH, Bielefeld/Germany, processes highly calorific commercial and industrial waste to become quality-assured substitute combustibles for cement industry and/or power plants. Basic items of this ultra-modern processing installation are two one-shaft size reduction machines of type WLK 30 Super-Jumbo of WEIMA Maschinenbau GmbH, Ilsfeld. The total output of ...


  • High temperature combustion of landfill gas

    Type     Compact plant HOFGAS® - Efficiency 250 Commissioning     December 2001 Site     Storkohmo landfill, Kokkola (FIN) Situation Storkohmo landfill is located 400km north of Helsinki on Finland's west coast near the city of Kokkola. Based on local legislation requirements ( reduction of green house gas emissions ) the ...


    By Hofstetter BV

  • Combustible Dust: It Doesn’t Take Much

    A dust accumulation of 1/32 of an inch deep—about the thickness of a dime—covering just five percent of a room’s surface area doesn’t sound like much, but it’s enough to cause a catastrophic explosion, according to the National Fire Protection Association (NFPA). Although good engineering and safety practices to prevent dust explosions have existed for decades, there ...


    By SafetySmart

  • Combustion strategies for PFI hydrogen IC engines

    Hydrogen is a very interesting fuel when it comes to load control. The high flame speeds of hydrogen mixtures and its wide flammability limits permit very lean operation. Where possible, Wide Open Throttle (WOT) operation is used, which regulates the load with the mixture richness (qualitative control) instead of using volumetric regulation (quantitative control) and, thus, avoiding pumping ...


    By Inderscience Publishers

  • AMETEK THERMOX Introduces the WDG-V Combustion Analyzer

    Abstract AMETEK THERMOX Introduces the 5th Generation THERMOX Combustion Gas Analyzer in a CONTROL Magazine Exclusive. WDG analyzers are based on a zirconium oxide cell that provides a reliable and cost-effective solution for measuring excess oxygen in flue gas as well as CO and methane levels.  Information from the Gas Analyzer allows operators to obtain the highest ...

  • Application of combustion analyzers in safety instrumented systems

    The combustion process has always been considered having the potential for a hazardous event which could lead to personnel injury or loss of production. To mitigate this risk, the process industry is now implementing Safety Instrumented Systems which can identify hazardous operating conditions and correctly respond in such a way to bring the combustion process back to a safe operating condition ...

  • Horizontal Mixers for Secondary Combustibles - Case Study

    The manufacture of secondary combustibles from household waste, industrial waste and special waste in accordance with statutory requirements is to be a huge challenge for system suppliers in the coming years. Currently, at times, extremely differing substances are treated in such a way that they can be loaded into conventional furnaces. The most important requirement is the detailed control over ...


    By AVA GmbH u. Co. KG

  • Study on Behavior of Sludge-derived Combustible Gases and its Safety Control on Utilizing Bio-solids

    ABSTRACTA questionnaire inquiry on prior accidents was conducted among local government operating sludge drying and incinerating facilities and cooperating research companies that are constructing such facilities. The 88 accidents reported by the respondents were investigated and the causal mechanisms associated with each typical accident pattern (by type and ...

  • Overview and status of post-combustion NOx control: SNCR, SCR and hybrid technologies

    Requirements for reduced NOx emissions have required that emissions reduction technologies move beyond combustion controls alone. Post combustion NOx control technologies that are being applied to coalfired utility boilers include selective non catalytic reduction (SNCR), selective catalytic reduction (SCR), and combined SNCR/SCR systems (hybrid SNCR/SCR). This ...


    By Inderscience Publishers

  • Controlling combustion noise in direct injection diesel engine through mechanical vibration measurement

    The next generations of direct injection diesel engines have greatly improved their performances compared with petrol engines. However, one of the pending subjects is the noise and vibration levels, due to working cycle itself. The design effort to reduce the emissions of noise and vibration transmitted to the vehicle's driver could be lessened because of the assembly process variation. In this ...


    By Inderscience Publishers

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