Stack gas flow monitor
July 2003
Flow Measurement & Control
Infrastructure
Durag's D-FL-100 measuring system continuously determines the flow velocity and the flow rate of the exhaust gas. Alarm levels are pre-selectable and any alarms will be indicated inertia-free, permitting necessary interventions in the plant control system so as to comply with prescribed emission limit values.
Operating on the principle of differential pressure, the D-FL 100 units are available in two types. The D-FL 100-I is designed for flow measuring without temperature and pressure compensation and the D-FL 100-II for flow measuring with temperature and pressure compensation.
The probe has two separate chambers, between which a pressure difference, caused by the flow in the duct, builds up. The differential pressure at the probe is proportional to the square of the gas speed. The volume flow can be converted from operational to standard conditions by the D-FL 100-10 microprocessor evaluation unit. For this purpose, two additional current inputs (0 to 20 mA) for a temperature probe and a pressure probe have been provided at the evaluation unit. If an emission evaluation computer is available, the evaluation unit is not required.
Special designs are available for use in aggressive exhaust gases. A hastelloy flow probe is recommended for heating power plants, chemical plants and in paper manufacturing. For operating temperatures of over 600°C, an Inconel flow probe is available. The lengths of measuring ranges offered are 400 to 2000 mm, 2000 to 4000 mm or 4000 mm. Exhaust gas temperature over the exhaust gas dew point is up to +320°C. An automatic backflow purging feature is available as an option.
For more information contact Noel Bauchop, OEN Enterprises, 011 675 4447, [email protected], www.oenenterprises.co.za
Further reading:
Hygienic and accurate flow measurement
ifm - South Africa
Flow Measurement & Control
ifm’s ultrasonic sensor detects flows of conductive and non-conductive media with high precision.
Read more...
Enabling smarter and safer residential estates
Impro Technologies
Access Control & Identity Management Infrastructure Residential Estate (Industry)
Modern estates must manage residents, visitors, contractors, domestic workers, delivery personnel, security staff, and service providers, often across multiple access points and facilities. Traditional systems are increasingly unable to provide the visibility, accountability, and operational efficiency required.
Read more...
Security works better when it starts with the building
Facilities & Building Management Infrastructure
If the project team has already determined where services will run, how people will move through the building, and where access points will sit, the security specialist is working within decisions that have already been made.
Read more...
Integrating the industry
News & Events Infrastructure
With private security, neighbourhood watches, CCTV, drones, control rooms and community safety networks expanding across the country, the next frontier may not be more technology, but connecting what already exists.
Read more...
Hygienic ultrasonic flow sensor
ifm - South Africa
Flow Measurement & Control
The SU Puresonic Hygienic ultrasonic sensor from ifm detects flows of conductive and non-conductive media with high precision.
Read more...
VEGA pressure instrumentation supports resilient water network management
VEGA Controls SA
Pressure Measurement & Control Flow Measurement & Control
As rapid urbanisation and climate pressures strain water networks across Africa, accurate real-time pressure monitoring has become a strategic necessity. VEGA’s pressure instrumentation helps utilities reduce losses, protect infrastructure and meet sustainability targets.
Read more...
Cloud-ready BMS is reshaping building operations
Facilities & Building Management Infrastructure
Buildings may be getting smarter, but too many control rooms are still anchored to yesterday’s technology, such as on-site servers, rigid architectures and a patchwork of interfaces that are expensive to run and slow to evolve.
Read more...
Reducing fluid control and automation complexity in pharma process development
Flow Measurement & Control
Designing and building pharmaceutical processes or skids demands close coordination between mechanical, electrical, instrumentation and automation engineering teams.
Read more...
From drone market growth to application-level commercialisation
IoT & Automation Infrastructure
After years of pilot projects and technology validation, the question for the market is shifting from whether drones can fly safely and collect data, to where they can deliver repeatable operational value at scale.
Read more...
Flow imaging microscopy for the early detection of harmful algal blooms
Yokogawa South Africa
Flow Measurement & Control
Yokogawa’s advanced flow imaging microscopy technology, FlowCam is helping utilities move from reactive treatment to proactive prevention of harmful algal blooms in reservoirs, dams and freshwater sources.
Read more...
printer friendly version