stack analysis Articles
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Evaluation of the ADMS, AERMOD and ISC3 Models with the Optex, Duke Forest, Kincaid, Indianapolis and Lovett Field Data Sets
The model evaluation exercise addresses the question whether the new models, ADMS and AERMOD, produce improvements over ISC3 when compared with a range of field observations. ADMS and AERMOD have similar state-of-the-art scientific components, whereas ISC3 contains 1960s technology. The five sets of field observations used in the statistical evaluation represent a cross-section of typical ...
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Evaluation of the ADMS, AERMOD, and ISC3 dispersion models with the OPTEX, Duke Forest, Kincaid, Indianapolis and Lovett field datasets
The model evaluation exercise addresses the question of whether the new models, ADMS and AERMOD, produce improvements over ISC3 when compared with a range of field observations. ADMS and AERMOD have similar state-of-the-art scientific components, whereas ISC3 contains 1960s technology. The five sets of field observations used in the statistical evaluation represent a cross-section of typical ...
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Nano-characterisation of dielectric breakdown in the various advanced gate stack MOSFETs
Nano-scale physical analysis of breakdown in nano-scale high-κ gate stacks consisting of either polycrystalline-silicon or metal as gate electrode shows that the microstructural defects and damages induced by breakdown in the high-κ gate dielectric are different from that of conventional SiOxNy/poly-Si and Si3N4/poly-Si gate stacks. Chemical analysis using transmission electron microscopy ...
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Exergy analysis of a wood-stack during dehumidifier drying
We present a first order model of airflow within the wood stack of a timber dryer during the constant-rate drying period, allowing the exergy destruction and entropy generation rates to be determined for heat, mass and momentum transfer. The effects of varying timber stack and airflow variables on the entropy generation rate are determined. We find that heat transfer is the dominant contribution ...
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Engineers Benefit from Geotube Stacking Technology & Analysis - Case Study
Stacking Geobag units makes projects previously thought impossible, possible. Since 1962, Geotube technology has protected countless shorelines and provided low cost, high volume dewatering solutions to companies all overthe world. Starting off as a single layer unit designed for shoreline erosion protection, Geotube structures have been developed and improved for more than 40 years to help ...
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Engineers Benefit from Geotube Stacking Technology & Analysis - Case Study
Stacking Geobag units makes projects previously thought impossible, possible. Since 1962, Geotube technology has protected countless shorelines and provided low cost, high volume dewatering solutions to companies all over the world. Starting off as a single layer unit designed for shoreline erosion protection, Geotube structures have been developed and improved for more than 40 years to help ...
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Analysis of Stack Emissions Using VOST Air Sampling Tubes and Capillary GC
United States EPA SW-846, Method 0030, Volatile Organic Sampling Train (VOST), describes the sampling of emissions for volatile compounds from hazardous waste incinerator stacks. Supelco's VOST air sampling tubes are designed to fulfill the method requirements and provide low background levels. ...
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Case study - Engine cell exhaust: Catalytic oxidizer
Overview Endurance testing of outboard motors for boats has typically been done in lakes and sometimes on barges. This testing was time consuming, presented logistic problems and removed the testing from the R & D department and the factory. When a company in Oklahoma decided to build their own endurance test cell area, the Environmental Protection Agency required them to control the ...
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William Tracey Group - Case Study
Name: Scott Newport Job Title: Divisional Technical Manager Company: William Tracey Group, Scotland, United Kingdom Peak Precision stack at William Tracey's lab Soil analysis with Peak Precision William Tracey is one of the UK’s leading recycling and resource management companies with a full range of environmental services. It delivers bespoke recycling, waste reduction and ...
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Continuous measurement of Process oxygen for Claus sulfur recovery unit (sru) start-ups and shut-downs case study
During start-up and shut-down, any time a sulfur recovery unit (SRU) transitions from ambient temperature through fuel gas warm up to the introduction of acid gas, measurement of 02 stoichiometry is critical. Historically, operators have manually taken samples using a portable electrochemical type Os analyzer. While giving more or less satisfactory results, the requirement for more stringent ...
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On-line analysis of copper foundry’s stack gas composition by low resolution ft-ir gas analyser
ABSTRACT Stack gases of a copper foundry's after-burner were measured on-site by low resolution FT-IR gas analyser. Concentrations of carbon dioxide (CO2), carbon monoxide (CO), sulfur dioxide (SO2), nitric oxide (NO), nitrogen dioxide (NO2), methane (CH4) and water vapor (H2O) were continuously measured for a period of three days. Validation of the method included laboratory determination of ...
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2006-2016: 10 years of continuous dioxins monitoring in Italy. Which assessment for which perspective?
2006-2016: 10 years of continuous dioxins monitoring in Italy. Which assessment for which perspective? Polychlorinated dibenzo-p-dioxins (PCDD) and polychlorinated dibenzofurans (PCDF), more commonly named dioxins and furans are odorless, highly thermally stable, insoluble in water, highly liposoluble micropollutants present in traces in the environment, mainly produced during combustion with ...
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New boiler MACT and affiliated rules proposed
EPA proposed three related rules (with final rules expected by December 16, 2010), intended to reduce the emission of hazardous air pollutants (HAPs) from industrial, commercial, and institutional boilers and process heaters as well as commercial and industrial solid waste incinerators. Simultaneously, it also proposed a definition of solid waste that could potentially affect some units currently ...
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