Posts Tagged ‘gas’

Profibus health check delivers faster communications for Imperial College London’s carbon capture plant

June 1, 2015

A Profibus health check carried out by ABB has enabled Imperial College London to improve the performance of its instrumentation and control system used as part of its carbon capture pilot plant teaching facility. Carried out by ABB’s Measurement and Analytics Service team, the health check highlighted various potential improvements that could be made to the plant’s Profibus network, which have resulted in the data transfer rate being trebled.

Opened in 2012, the carbon capture pilot plant is part of Imperial College’s £8.9 million ChemEngSpace Project and is used for undergraduate teaching, with over 300 chemical engineering students having access each year.

The plant uses an extensive selection of the same ABB proven products and systems that are used in a broad range of industrial applications worldwide. It’s designed so that students acquire hands-on experience of ABB’s integrated systems and products in an operational cutting-edge industrial application. ABB equipment used on the plant includes flow, pressure, temperature and level instruments, pH analysers, positioners, a gas analyser, low voltage drives and motors, low voltage products and a System 800xA distributed control system.

All of the data from the plant is relayed to the control system through several different communication protocols including Foundation Fieldbus, Profibus and Wireless.

Together, this equipment enables students to gain valuable practical experience of plant operation that will help prepare them for a career in chemical or process engineering.

As part of its 10 year support agreement with Imperial College London, ABB was keen to carry out a health check on the Profibus communications system to help assess its performance. A Profibus analyser was connected to the network to capture a variety of performance-related information, including the data transfer rate, signal strength and any interference or noise. The analyser scans for approximately 30 minutes to an hour and records the communications data to give an indication of efficiency.

The results were revealing. Originally under the impression that the optimum speed for performance was 500kb/second, ABB Service Engineer Paul Bick actually found that in the case of the carbon capture plant, the best speed was 1500kb/second. Increasing the speed to this new limit immediately produced a significant improvement in response time from the instruments. Imperial College were using the slower speed out of caution, but the Profibus health check helped to establish that a higher data transfer rate was achievable.

Paul Bick also took the time to check the network installation, “On a Profibus network, a minimum of one metre of cable length should be used between each instrument. It was discovered that the drives had less than one metre. This didn’t conform to the Profibus guidelines. We therefore recommended that it was extended. Now it works better – without the length there can be issues with reflections, data corruptions and interferences.”

Overall, the Profibus communications network performed well before the health check. But through this procedure a few improvements were made which helped optimise performance, and enabled the students at Imperial to understand what kind of maintenance is required in a real world plant setting, and the significant difference it can make.

Dr Colin Hale, Senior Teaching Fellow at the college says, “A great thing about the plant is that it can be used not only to teach our students about carbon capture, but also about wider issues connected with plant control and instrumentation, including best practice. The improvements produced by the health check are a great example of the valuable contribution that maintenance can make to a system’s performance.”

The Profibus health check is part of a broader range of health check and life cycle services offered by ABB to help users to get the most from their installed instruments and analysers. For more information, email abb.service@gb.abb.com or call 03339 997 996, ref. ‘Health checks’.

ABB to unveil its latest emissions technologies at AQE 2015

March 6, 2015

We are delighted to reveal that ABB will be exhibiting its latest range of air and gas analysers at the Air Quality and Emissions (AQE) Show at the Telford International Centre (22nd – 23rd April 2015). Stands 70 and 71 will feature a comprehensive selection of ABB equipment including laser, zirconia and FTIR spectrometry.

Taking centre stage will be ABB’s new ACF5000 hot/wet extractive continuous emissions monitoring system for combustion applications.

Using FTIR technology, the ACF5000 enables simultaneous analysis of up to 15 different gas components including SO2, CO2, CO, NH3 and VOCs using a single sample probe system.

Completely self-contained, the ACF5000 offers a turnkey solution for combustion process monitoring in municipal and hazardous waste incineration and power plants using coal, oil or waste.

The system is also currently undergoing MCERTS certification for use in process plants for applications including DeNOx and DeSOx plant optimization and HCL scrubber monitoring.

Other products on show will include the stand-alone LS4000 laser gas analyser system for use in hazardous locations. Enabling in-situ monitoring of stacks, pipes, process chambers and other similar applications, the LS4000 uses tunable diode laser absorption spectroscopy (TDLAS) to provide direct measurement of hazardous gas streams. Offering a very fast response time, the LS4000 is especially suited to high pressure, high temperature applications with fast changing conditions.

Other equipment on display will be ABB’s Endura AZ20 zirconia oxygen and StackFlowMaster instruments. The AZ20 is a compact combustion gas analyser for high temperature applications up to 800°C. Manufactured using a new ceramic-to-steel bonding process, the AZ20 offers improved resistance to thermal stresses and shocks compared to a conventional brazed design. This enables it to be used in a wider range of applications subject to sudden variations in process temperatures, as well as offering a gas tight bond throughout its operating temperature range.

The StackFlowMaster is an in-situ device for measuring flows in stacks up to eight metres in diameter. The StackFlowMaster manual version is for use in applications with relatively clean gases such as gas fired combustion processes. The StackFlowMaster automatic version features a purging and auto/span zero capability, making it suitable for applications with dust-laden gas streams.

Joining these products will be examples from ABB’s EasyLine EL3000 range of photometers for gas analysis. Based on ABB’s MCERTS-approved extractive continuous gas analysis technology, the EL range is available in both infrared (IR) and ultra-violet (UV) photometers, with a choice of sensing and analyser options including electrochemical, paramagnetic, thermal conductivity and trace oxygen.

ABB will also be hosting a workshop covering key issues affecting the deployment of gas analysers in industrial applications. The workshop, hosted by our very own Analytical Product Manager, Günter Haberzettl, will explain how implementing a QAL3 evaluation tool into a continuous emissions monitoring system can help simplify data storage and reporting, with users able to access data via a web browser (12.00 12.30pm, April 22nd, room 2; 12:00 – 12:30pm April 23rd, room 4).

Enviropower maintains constant power output with ABB gas analyzers

February 25, 2015

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We are delighted to reveal that our highly reliable gas analyzers, which haven’t suffered a single time loss failure in five years, have enabled a waste to energy plant in West Sussex to achieve its target of 85% percent operating time.

The plant, owned and operated by Enviropower in Lancing, has a 5MWe capacity, burning around
60,000 tonnes a year of biomass fuel derived from construction and demolition waste.

Built in 2008, the plant uses an ABB ACF-NT multi-gas analyzer on each of its two combustion lines. Used to measure all the gas emissions from the plant, their data is sent to an emission reporting system, allowing Enviropower to prove that it is meeting the requirements of the Environment Agency.

Working with its construction company for the project, Enviropower turned to ABB as the analyzer vendor because of the high reliability of our products and our unrivalled ability to integrate complete solutions.

Because the plant’s operation is permit based, it has to meet certain criteria. One of these is the use of equipment that complies with the requirements of the Environment Agency’s MCERTS standards. Its permit specifies a minimum oxygen content of 11%, which will shortly reduce to six percent. As such, it was essential that the analyzers had the flexibility to adapt to changing regulations. What’s more, it was vital that the analyzers were highly reliable and that servicing was kept to a minimum.

The ABB ACF-NT emission and process monitoring analyser ticked all the boxes. Offering continuous, quantitative and selective measurement of numerous gasses, including HCl, HF, H2O, CO, CO2, SO2, NOX, NH3, N2O, O2, TOC and NMHC (non-methane hydrocarbons), the analyser achieves high stability, accuracy and reliability through proven FTIR technology. It also offers integration and display of signals from other instruments, including data on dust, mercury, flow, pressure and temperature.

ABB appoints new channel partner to expand offering into the Irish process market

January 14, 2015

We are delighted to announce that ABB UK Measurement and Analytics is partnering with Hanley Measurement and Control to offer our expanding portfolio of products into the Irish process market.

Underlining our commitment to increasing our presence in the Irish process market, the partnership will see the company act as the official sales agent for our growing range of measurement and control products for improving process performance and efficiency for applications in the pharmaceutical, chemical, food and beverage and other related industries.

Utilising a well-known and respected partner such as Hanley will allow our customers in Ireland to get full access to support and service going forward into 2015 and beyond.

Products available through Hanley will include ABB’s full range of process flowmeters, devices and systems for the measurement of temperature and pressure, plus liquid, gas and air emissions, as well as valve actuators, positioners, recorders and controllers.

The appointment of Hanley Measurement and Controls further expands our network of Instrumentation Alliance Partners in the UK and Ireland, which includes specialist suppliers of instrumentation products, services and expertise serving the water, power, process and oil and gas markets.

For more information about ABB’s Instrumentation Alliance Partners, email moreinstrumentation@gb.abb.com or call 0870 600 6122.

ABB to highlight emissions technology and know-how at AQE 2013

January 31, 2013

We are excited to announce that we’ll be exhibiting our latest range of air and gas analysers at the much anticipated Air Quality and Emissions (AQE) Show at the Telford International Centre (13-14th March 2013).

On stands 47 and 48, we will be showcasing a comprehensive selection of our equipment utilising a variety of measurement techniques, including laser, zirconia and FT-IR spectrometry.

Products on the stands will include the LS25 laser gas analyser. Enabling in-situ monitoring in stacks, pipes, process chambers and other similar applications, the LS25 uses tuneable diode laser absorption spectroscopy (TDLAS) to measure concentrations of various gases including oxygen and ammonia in gas streams. Offering a very fast response time, the LS25 is especially suited to applications with fast changing conditions such as municipal waste incineration where the composition of gases may be subject to rapid changes.

Other equipment on display will be our new Endura AZ10 zirconia oxygen and StackFlowMaster instruments. The AZ10 is a compact combustion gas analyser, coupling ABB’s proven zirconia oxygen sensing and transmitter technology. Aimed at safe area combustion processes, the AZ10 uses ABB’s common AZ transmitter platform, making it a low cost solution ideal for OEMs.

The StackFlowMaster is an in-situ device for measuring flows in stacks up to eight metres in diameter. The StackFlowMaster Manual version is for use in applications with relatively clean gases such as gas fired combustion processes. The StackFlowMaster Automatic features a purging and auto/span zero capability, making it suitable for applications with dust-laden gas streams.
Both versions of the StackFlowMaster work with continuous emissions monitoring analysers to calculate the emissions flow in mass or corrected volume units of measurement.

As well as being MCERTified and fully compliant with EN 15267-3, the StackFlowMaster is also fully QAL3 compliant, making it ideal for use by plants operating under an Environment Agency permit.
Using the StackFlowMaster’s zero and span functions, operators and test laboratories can perform regular tests to ascertain the performance of the analyser during normal operation.

As well as showcasing its products at the exhibition, we will also be hosting two workshops which will cover the key issues affecting the deployment of gas analysers in industrial applications.

The first workshop, hosted by ABB’s UK Analytical Sales Specialist, Steve Donnelly, is entitled ‘Improve your OMA score, and save money’ (Wednesday 13th March, Room 4, 11.00-11.30). The workshop will explain how using our next generation FTIR CEMS can help operators to maximise their OMA score and reduce capital and lifetime costs by having the best available technology and service and support in place.

The second workshop, also hosted by Steve, will be titled ‘ABB StackFlowMaster: integrating flow measurement into ABB CEMS”. Taking place on Thursday 14th March, the workshop will explain how flow data from our StackFlowMaster can be integrated into Continuous Emissions Monitoring systems to provide a comprehensive picture of both the quantity and quality of gas streams.

For more information, email moreinstrumentation@gb.abb.com or call 0870 600 6122 ref. ‘AQE 2013’.