Stack Testing 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

  • Sulfide emissions in sewer networks: focus on liquid to gas mass transfer coefficient

    H2S emission dynamics in sewers are conditioned by the mass transfer coefficient at the interface. This work aims at measuring the variation of the mass transfer coefficient with the hydraulic characteristics, with the objective of estimating H2S emission in gravity pipes, and collecting data to establish models independent of the system geometry. The ratio between the H2S and ...


    By IWA Publishing

  • Pet Crematorium - Bespoke pet cremation facility - Case Study

    TodaySure have installed numerous pet crematoria, throughout the World. Our most recent innovative design incorporated two stacked individual pet cremators, fuelled by the exhaust gases of the adjacent automatically loaded mass burn unit, thus minimising fuel input and reducing carbon ...


    By Todaysure Matthews

  • Stacking up: flare Monitoring from LumaSense

    Lenny Shaver, LumaSense Technologies’ director of product management, explains the company’s IR and pyrometer technologies FLARING systems are common in many industries to burn gases before they enter the atmosphere. The safe operation of a flaring system requires the continuous monitoring of pilot flames and flared gases to ensure that vented gases are ignited. As ...

  • Innova`s race against time; the sonic mystery

    What began as a puzzling mystery in the semi-arid scrub-land of Colorado, ended as a race against time for the acoustic specialists of INNOVA (formerly ATCO Noise Management). The Olathe Compression Station, operated by Kinder Morgan’s TransColorado Gas Transmission, is located on a plateau in isolated, canyon-cut Colorado countryside, three km from the nearest ...


    By Innova Global Limited.

  • Total solution: Gas and particulate analysis in Cement industry

    Cement plants are increasingly required to install continuous emission monitoring systems (CEMS). While these represent a significant financial outlay, a range of other factors also need to be considered when selecting a suitable CEMS. To the inexperienced, selecting a suitable CEM can mistakenly be considered as simply ensuring that the applicable national regulations (eg MACT in the USA, ...


    By Environnement S.A

  • Global solution: Gas and particulate analysis in Cement industry

    Cement plants are increasingly required to install continuous emission monitoring systems (CEMS). While these represent a significant financial outlay, a range of other factors also need to be considered when selecting a suitable CEMS. To the inexperienced, selecting a suitable CEM can mistakenly be considered as simply ensuring that the applicable national regulations (eg MACT in the USA, ...


    By Environnement S.A

  • Why Move Up to Allegro 17.2-2016? So How Does Your Design “Stack-Up”? (Reason 5 of 10)

    We are not talking about how your design compares to the next guys’, we’re talking about the PCB layer structure of your design, be it rigid, flex, rigid-flex, or using inlay technology. Stackup definition, more specifically accurate stackup definition, is critical for a wide variety of reasons. The arrangement of the various materials affect the computations and analysis for ...


    By PCB Piezotronics, Inc.

  • Enhanced degradation of trichloroethene by sodium percarbonate activated with Fe(II) in the presence of citric acid

    Trichloroethene (TCE) degradation by Fe(II)-activated sodium percarbonate (SPC) in the presence of citric acid (CA) in aqueous solution was investigated. The results indicated that the presence of CA enhanced TCE degradation significantly by promoting HO• generation. The presence of Cl−, HCO3− and the initial solution pH appeared to be not ...


    By IWA Publishing

  • BACnet Interface for VFD Drive in HVAC

    Area of engagement Enable BACnet MS/TP support for VFD Drive in HVAC Solution The Client Leading OEM of AC Drives, Machine controllers, Robotics, Automation systems Overview Client was looking for a solution to enable BACnet MS/TP interface for its VFD drive in HVAC system. In addition, client also wanted support in ...


    By SoftDEL Systems

  • Grana-Localized Proteins, RIQ1 and RIQ2, Affect the Organization of Light-Harvesting Complex II and Grana Stacking in Arabidopsis

    Abstract Grana are stacked thylakoid membrane structures in land plants that contain photosystem II (PSII) and light-harvesting complex II proteins (LHCIIs). We isolated two Arabidopsis mutants, reduced induction of non-photochemical quenching (riq1 and riq2), in which stacking of grana was enhanced. The curvature thylakoid 1a curt1a) mutant was previously shown to lack grana structure. ...


    By H Smith Plastics LTD

  • Environmental Regulatory Compliance Practitioner Spotlight: Pete Schwalbach

    Name: Pete Schwalbach Office: St Paul Practice Area: OPA Area of expertise: Environmental Regulatory Compliance About Me in 140 Characters Happily married, father of three, ...


    By Antea Group - USA

  • Controlling Stack Emissions in the Wood Products Industry & Wood Fired Boilers

    Electrostatic precipitation has been a reliable technology since the early 1900's. Originally developed to abate serious smoke nuisances, the manufacturers of zinc, copper, and lead quickly found electric gas cleaning a cost efficient way to recover valuable product carried out of the stacks from furnace operations. Today electrostatic precipitators are found mainly on large power plants, cement ...

  • Treatment of cyanide wastewater by bulk liquid membrane using tricaprylamine as a carrier

    The transport of cyanide from wastewater through a bulk liquid membrane (BLM) containing tricaprylamine (TOA) as a carrier was studied. The effect of cyanide concentration in the feed solution, TOA concentration in the organic phase, the stirring speed, NaOH concentration in the stripping solution and temperature on cyanide transport was determined through BLM. Mass transfer of cyanide through ...


    By IWA Publishing

  • Case study - Spindle utilities module

    Business Situation The existing method of tracking utility usage at these industrial laundries was highly manual, unreliable, and time consuming. Total utility consumption from bills was entered into large spreadsheets and analyzed over periods that were often 3 months or more in arrears. The report merely told managers what they already knew—they had overspent on natural gas; ...


    By Dober Chemical Corp

  • I need a roller mixer to fit different sizes of tubes and bottles, can you recommend one?

    Q: I need a roller mixer, but our lab works with tubes and bottles in different sizes – what would you recommend? A: The Stuart range of roller mixers would be ideal. These have recently been updated, and are now more flexible than ever – letting you use one unit to mix small centrifuge tubes right ...


    By Camlab Limited

  • BACnet enabled Wireless Temperature Monitoring System

    Area of engagement Solution to integrate wireless temperature monitoring system with BMS (Building Management System). Client A leading manufacturer of wireless temperature- and humidity-transmitters. Requirements Client offered a Temperature Monitoring System which consists of Wireless Transmitters and Application ...


    By SoftDEL Systems

  • How does climate stack up against other worst-case scenarios?

    Climate isn’t the only catastrophe threatening the planet, but it may be the one most in need of attention and resources. The following is excerpted from Climate Shock (2015) by Gernot Wagner and Martin L. Weitzman. Published here with permission from Princeton ...


    By Ensia

  • Model-based evaluation of mechanisms and benefits of mainstream shortcut nitrogen removal processes

    The main challenge in implementing shortcut nitrogen removal processes for mainstream wastewater treatment is the out-selection of nitrite oxidizing bacteria (NOB) to limit nitrate production. A model-based approach was utilized to simulate the impact of individual features of process control strategies to achieve NO−2-N shunt via NOB ...


    By IWA Publishing

  • ACS installation at Glowood 100,000ton/y pellet plant achieves 12mg/Nm3 - Case Study

    With increasingly tougher restrictions on industrial air emissions, pellet manufacturers are looking to "future-proof" particulate matter (PM) compliance, cost effectively. One Portuguese producer, Glowood Indústria S.A., has recently installed a brand new type of mechanical cyclone. The most recent results show a remarkable reduction of its PM emissions, from 700mg/Nm3 to under ...

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