Austech Methane Analyser System Landfill Applications

Austech recently installed a Methane Analyser System at one of NSW’s largest landfill to electricity generation sites.

The plant has a combined capacity of 23MW and its accredited GreenPower ® generators can produce sufficient electricity to supply around 23,000 homes per annum.

The system consists of two pressure-forced type methane analyser systems running in redundant mode, measuring methane gas concentration in the overall landfill gas before it is supplied to multiple electricity generators-engine modules.

The key technology of the system is Austech’s IEC certified Methane Analyser. Suitable for use in hazardous areas, the analyser is highly accurate, stable and is not cross sensitive to other Hydrocarbons typically present in landfill gas.

The system is designed to optimise the engine module to achieve higher efficiency and in the event of low methane content in the landfill gas shut the plant down to avoid engine failure. This helps to prevent premature failure of capital equipment.

The Austech Methane Analyser System is a reliable, accurate and economic method of determining the concentration of methane content in the sampled gas and enables accurate online real time monitoring of methane content within the overall gas mix. This means the customer can provide these measurements to the Clean Energy Regulator which issues Australian Carbon Credit Units (ACCUs) to renewable energy companies under the Carbon Farming Initiative.

Austech has also provided ongoing maintenance, detector calibration and record keeping which assist the customer to continue meeting the requirements of the scheme. This has contributed to the systems ongoing operation, without unscheduled downtime, since 2008.

Find out more about our industrial gas detection solutions.

Gas Detection in Testing Environments

A national animal health research facility engaged Austech to assist them to investigate and test the concentration levels of CO2 in a livestock testing environment.

Carbon Dioxide (CO2) is registered in Australia for destruction of commercial poultry during an emergency disease incident, such as the highly pathogenic Avian Influenza.

A testing environment complete with CO2 sensors and logging panel was constructed in an empty shed, without chickens, with additional safety measures in place. The objective of Austech’s involvement was to monitor the concentration of CO2 in various sections of the shed when flooded by CO2. The results from the test were used to validate the in-shed destruction of commercial poultry using CO2 during an emergency disease incident.

Equipment supplied:
Austech Instruments provided the equipment and the staff to set-up the equipment on site, run the data loggers during the CO2 flooding tests and download the data after each test. Additionally a written report of the results was provided to the research team.

The system consisted of four high range CO2 sensors and a portable data logger. The sensors were relocated in the poultry shed where a number of tests were undertaken and logged.

The CO2 sensors were specially modified by Austech to be 0-100% volume; in comparison to typical CO2 sensors which might only read to 5% volume.

Outcome:
The sensors performed reliably and accurately despite the rapid changes and subzero temperatures (-20°C) they were subjected to. Austech provided a full analysis and report to the client in regards to the CO2 measured throughout the test, allowing the client to draw conclusions regarding the use of the gas.

Austech’s ability to provide a proven consultancy service was a key factor in being chosen by the client to undertake the trial.

Improving Safety in Conveyor Tunnels with Gas Detection

Ampcontrol member company Austech provided a turnkey Carbon Monoxide monitoring system for use in conveyor tunnels at a power station.

Combining the gas detection capabilities of Austech with Ampcontrol’s monitoring and control technology, the system includes a control cabinet with graphical display and addressable sensors with control evacuation warning lights and sirens.

The system includes 20 Austech CO sensors installed across two tunnels. These sensors are fitted with Ampcontrol iMAC AIM modules making the sensors addressable, which enables easy and quick installation with one single four core cable.

The control cabinet consists of an Ampcontrol iMAC Controller, Ampcontrol RO4 relay module and a touch screen LCD which displays Carbon Monoxide levels for each sensor, sensor status, the last 12 hours of readings and a record of alarms.

The combination of Ampcontrol and Austech’s technology enables the system to be expandable and re-configurable.

The installation of the gas detection system and evacuation alarms has improved safety in the conveyor tunnels for service technicians.