26
Air Monitoring Combustion Analyser Offering Improved Process and Safety Functions
AMETEK Process Instruments (USA), a specialist in online analytical instrumentation, has introduced the next-generation in close-coupled extractive combustion analysers with the launch of the Thermox WDG-V combustion analyser for measuring oxygen, combustibles and methane levels in hot, wet flue gas.
The WDG-V analyser provides a reliable and cost-effective solution for monitoring combustion, reducing excess oxygen, lowering emissions of NOx, CO and CO2 and improving operating efficiency. The reliable detection of low-combustion oxygen and/or high or low combustibles (CO) in a fired heater or boiler is critical to the effectiveness of burner management systems.
“We believe the WDG-V is the combustion analyser of the future,” comments Mike Fuller, Vice President of Marketing and Business Development for AMETEK Process Instruments & Analytical Instruments. “The role of combustion analysers in control and safety functions is evolving rapidly. Maximising fuel efficiency, while reducing emissions from combustion processes, requires utilising aggressive operating set points that dictate the need for additional layers of safety for risk reduction.”
The addition of a WDG-V combustion analyser provides a layer of control and safety to a basic process control system, while significantly reducing the risk of an uncontrolled combustion event. The versatile instrument can enable control and safety permissive, interlock and shutdown functions for burner management and safety instrumented systems.
“With the WDG-V, process plant operators have a highly reliable combustion analyser that reads accurately, verifies its accuracy and informs the operator what services are needed and when they are needed to maintain that accuracy,” notes Mr. Fuller.
“Our design goal with the WDG-V was to provide as much sensor and calibration performance monitoring, diagnostic self checks and operational data as possible to the user through graphical display, data logging and digital communication,” adds Mr. Fuller.
“The WDG-V analyser offers a complete solution for combustion process control and safety with redundancy and diagnostics that provide end users all of the information required to implement predictive and proactive maintenance
programs.The instrument has been third-party certified for SIL-2 implementation into Safety Instrumented Systems.”
Among the unique features of the WDG-V combustion analyser are: An improved aspirator design with larger orifice sizes and improved response times even with flame arresters installed; Low-flow sample alarm that monitors combustion gas flow at the sensors and provides an indication of low sample flow; Automatic verification of cell and detector integrity for ensuring proper accuracy and operation; Cell and detector age tracking for proactive calibration or service scheduling.
The WDG-V can be installed as either as a stand-alone analyser with analogue/HART, discrete and Modbus RS-485 bi-directional communications or supplied in a typical “sensor/controller” configuration with the addition of an AME Vision HMI that provides a graphical display and membrane keypad, Modbus, TCP/IP Ethernet connection, embedded Web Enabled Interface and USB data collection port.
The Thermox WDG-V is based on a field-proven design pioneered by AMETEK more than 40 years ago. Its close-coupled extractive sensor style is designed for fast response. It offers accuracy and ease of maintenance in a wide range of applications and is a superior alternative to in-situ probes, even in heavy particulate and high-temperature flue gas streams.
The WDG-V mounts directly to the process flange and is heated to maintain all sample wetted components above the acid dewpoint. Its air-operated aspirator draws a sample into the analyser and returns it to the process. A portion of the sample rises into the convection loop past the combustibles and oxygen cells and then back into the process.
Continuous measurements of low concentrations hydrocarbons
Synspec BV provides online gaschromatographs for monitoring hydrocarbons in ambient air, industrial and industrial safety applications.
This design gives a very fast response and is perfect for process heaters. It features a reduced drift hot-wire catalytic detector that is resistant to sulphur dioxide (SO2) degradation, and the instrument is suitable for process streams up to 3200o
F (1760o For More Info, email:
25625pr@reply-direct.com
Directly Measure Gas Emissions in Industrial and Monitoring Applications
Dr. George Burba, LI-COR (USA) Principal Scientist, has written a comprehensive step-by-step instruction book (Burba G., Eddy Covariance Method for Scientific, Industrial, Agricultural and Regulatory Applications. LI-COR Biosciences; 2013) to assist non- meteorologists in using a cutting-edge technique to directly measure gas emissions in industrial and monitoring applications. This book guides the reader through a brief theory of the method, experiment design, implementation, data processing, and analysis. Free PDF copies can be downloaded at
www.licor.com/ec-book.
Proven field equipment Continuous measurements
Detection limit in sub ppb (ppt) range
Low maintenance
Several standard applications o.a. BTEX, POCP and toxics Custom application on request
Synspec BV, De Deimten 1, 9747 AV Groningen, the Netherlands tel. +31-50-5266454,
www.synspec.nl,
info@synspec.nl
email:
170ad@reply-direct.com
THE SETTING: a city choking in toxic air pollution where people have evolved by growing more nose hair to keep harmful
particulate pollution out of their lungs.
THE CHALLENGE: survival of the fittest.
The eddy covariance (EC) method is an advanced approach for high-speed measurements of the transport of gases and heat from area surfaces into the atmosphere. Gas emissions and exchange rates are characterised from single-point in situ measurements using permanent or mobile towers, or moving platforms such as automobiles, helicopters, airplanes, etc.
Since the early 1990s, EC has been widely used by micrometeorologists for quantifying CO2, CH4, and H2O emissions from natural, urban and agricultural ecosystems. Over 600 EC stations are now in operation in over 120 countries. In the last 3-5 years,
methodological advancements have reached the point where EC can be easily used outside of micrometeorology, and is valuable for carbon capture and sequestration, leak detection, landfill emissions, and other industrial, regulatory, and monitoring applications.
To understand the basic principle, first imagine an area adding no gas molecules into the mean flow, and then compare it to the same area that adds molecules into the flow. Imagine a flow that carries 3 gas molecules over some area from left to right. The area in the middle did not add anything to the flow, so eddy movements at the downwind point would carry 3 molecules upward and 3 molecules downward, with no net flux.
Now imagine the surface adding 2 molecules to the flow. Since the area in the middle added 2 molecules to the flow, the eddy motions at the downwind point carry more molecules upward than downward. Thus, the EC station would measure a flux coming from the upwind area. LI-COR Biosciences manufactures instruments that are ideal for making eddy covariance measurements, and also offers free instrument training.
For More Info, email: For More Info, email:
26456pr@reply-direct.com Gas Chromatography Line Expanded
Baseline (USA) have announced the release of their new state of the art Gas Chromatograph. The 9100 Series Online Gas Chromatograph is designed to continuously monitor and analyse pollutants such as BTEX, Naphthalene and other Volatile Organic Compounds (VOCs). Whether complying with EPA regulations, monitoring outdoor air quality, fence lines or remediation sites, the 9100 Series offers accurate and repeatable results.
www.cleanairasia.org/hairynose www.facebook.com/cleanairasia
email:
282ad@reply-direct.com AET August / September 2013
www.envirotech-online.com
Being microprocessor based and containing embedded firmware and software, the 9100 Series eliminates need for an external PC connection. The icon based touchscreen allows for easy operation, setup and data presentation, all remotely accessible via network connection making it ideal for unattended operation. With automatic calibration, multi-point sampling, an expanded range of output choices (LAN, RS232, multiple 4-20 mA or 0-20 mA) and a variety of programmable relay functions for alarms, diagnostics or other timed events, the Series 9100 offers a great deal of flexibility.
Other applications for the 9100 Series include Exposure to Toxic Gases, Impurities in Specialty, Industrial and Beverage Gases as well as Fast C1 to C5 Mudlogging during Oil and Gas Exploration.
For More Info, email:
26192pr@reply-direct.com C).
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44
