A hot spot device that can detect the presence of large amounts of carbon dioxide can help identify the carbon dioxide concentration in the local environment, according to new research.
The device, which is being developed by researchers at the Australian National University, can detect concentrations of carbon monoxide (CO), CO2, methane, nitrogen dioxide (NOx) and sulphur dioxide (SO2) in the atmosphere, and determine whether the concentration is in excess of a certain threshold.
At a level of around 0.05 per cent, the device can detect an amount of CO that can be considered a hot spot, which could be a problem for businesses operating in these areas, particularly in the capital.
“The device is designed to detect CO levels above a certain value in the ambient environment, which would mean that any CO emissions from a hot site could be attributed to that source,” said Dr Nick Hock, an assistant professor at the University of New South Wales, who led the research.
“This can be useful when planning operations or building new facilities.”
Our device measures CO levels and adjusts the amount of carbon oxides (CO2) emitted based on the atmospheric concentration.
If the CO level exceeds a certain level, the system will adjust the amount emitted, increasing the number of CO2 emitted and reducing the CO2 concentration.
“The device can also be used to identify whether a hotspot exists and then identify the location of the hot spot.
As the carbon concentration increases, the concentration of CO is measured.
If the concentration exceeds a threshold, the devices calibration will be adjusted to compensate for the increase.
Dr Hock said the devices design is similar to that of a detector that measures a radio frequency (RF) signal.”
The main difference is that the device is used to detect carbon monotheres, which are naturally occurring gases, such as CO, nitrogen and sulphurs, rather than CO2,” Dr Hock told the ABC.
However, he said the device also has advantages over a detector, such a device used to monitor air quality.”
Because the device emits CO, it can detect CO concentration over a large area, whereas a detector has to detect air pollution at the point of measurement,” Dr Murtaza Hussain, a researcher at the Centre for Sustainable Environmental Systems (CSES), said.”
It also takes into account the location and time of the measurement.
“Dr Hussain said that while the CO detection device would be useful for small operations, it could be useful to businesses operating larger facilities.
The CSES researchers are working on a system that would measure the CO concentration in a CO-free environment and then use the CO emissions to calculate the CO levels in that area.”
This could be particularly useful for businesses that operate near large concentrations of CO, or in locations where the CO content in the air is high,” Dr Hussain said.
Dr Hussain added that the CO device would have some limitations.
He said that, if a CO emission is detected in a particular area, the CO emission would be detected, but it would be less than that of CO in the surrounding air.”
The research was published in the journal Environmental Science & Technology. “
[The device] has some limitations that will need to be addressed to make it useful for commercial use.”
The research was published in the journal Environmental Science & Technology.
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