Oilpan4
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Methane leaks

Sat Dec 21, 2019 8:48 pm

https://www.nytimes.com/interactive/201 ... tters.html

This article is the equivalent of going around to grave yards with a flir and saying any hot or cold spots you can find are proof of ghosts.

Obvious problem.
They assume anything hot or cold is a methane leak.
Methane is lighter than air, but some of the exhaust plooms they show are sinking, which means they are obviously not lighter than air and are likely high in sulphur gases or ammonia.
They show a building thats "leaking methane", I don't think so on account of it would blow up with the smallest spark.
They say "a worker walked through a cloud of methane" since the cloud was sinking it wasn't methane, it might have looked like he walked through the cloud to the perspective of the camera. There's no way he walked through a cloud of heavier than air gas like that. It stinks and burns your eyes, nose and lungs.
It appears almost as if it's the first time these reporters have held any kind of camera.
Anyone who has ever used a flir knows this is bs.

If it was that easy to find methane leaks, why doesn't the epa drive around with a flir and cut huge tickets to all the offenders?
Why doesn't the gas company use flir to find line and meter leaks? If it worked it would be a lot faster than using people with hand held methane sniffers.
"THE ABOVE POST CONTAINS MISLEADING AND INACCURATE INFORMATION. PLEASE CONSIDER IT OPINION, NOT FACT". -someone who I offended and is unable to produce the facts in question.

powersurge
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Re: Methane leaks

Mon Dec 30, 2019 5:40 am

This may fall into the category of techno-brainwashing. Just because you can find a new thing to measure does not mean that what you are seeing it what you THINK you are seeing..

You could use a heat sensing camera and get those images, but it may only be HEAT and not toxic materials...

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Nubo
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Re: Methane leaks

Mon Dec 30, 2019 6:18 am

To be fair, they did say they enlisted the help of an expert in detecting methane emissions. Just because they didn't detail their methods doesn't mean they were invalid. And just because an infrared camera was used doesn't mean they labelled any heat signature as methane. In fact they mention distinguishing between various emissions.
I noticed you're still working with polymers.

Oilpan4
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Re: Methane leaks

Mon Dec 30, 2019 8:33 am

Literally everything hot or cold they could see was "a methane leak".
"THE ABOVE POST CONTAINS MISLEADING AND INACCURATE INFORMATION. PLEASE CONSIDER IT OPINION, NOT FACT". -someone who I offended and is unable to produce the facts in question.

WetEV
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Re: Methane leaks

Mon Dec 30, 2019 8:54 am

Oilpan4 wrote:
Mon Dec 30, 2019 8:33 am
Literally everything hot or cold they could see was "a methane leak".
You know this... how?
WetEV
#49
Most everything around here is wet during the rainy season. And the rainy season is long.
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Nubo
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Re: Methane leaks

Mon Dec 30, 2019 9:10 am

Oilpan4 wrote:
Mon Dec 30, 2019 8:33 am
Literally everything hot or cold they could see was "a methane leak".
I don't believe that was either expressed or implied. They also used a spectrometer to analyze air samples and the camera wasn't an off-the-shelf thermal camera looking for any old heat, it was a custom unit fitted with a narrow-pass filter from 3.2 to 3.4 um. If the following paper is relevant, then multiple emitters would be aimed at the target and Methane responds strongly to one of them at 3.3um, and not to the other, identifying the composition of the plume.

https://www.cdc.gov/niosh/nioshtic-2/10000368.html
I noticed you're still working with polymers.

Oilpan4
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Re: Methane leaks

Mon Dec 30, 2019 10:08 pm

WetEV wrote:
Mon Dec 30, 2019 8:54 am
Oilpan4 wrote:
Mon Dec 30, 2019 8:33 am
Literally everything hot or cold they could see was "a methane leak".
You know this... how?
That's what the article said did you not read it?
"THE ABOVE POST CONTAINS MISLEADING AND INACCURATE INFORMATION. PLEASE CONSIDER IT OPINION, NOT FACT". -someone who I offended and is unable to produce the facts in question.

Oilpan4
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Re: Methane leaks

Tue Dec 31, 2019 12:31 am

If it's that easy why doesn't the epa get them selves one like that and ride around cutting huge tickets?
If 10% of these methane leaks are actually methane leaks it would pay for its self a few times before lunch on its first day in service.
"THE ABOVE POST CONTAINS MISLEADING AND INACCURATE INFORMATION. PLEASE CONSIDER IT OPINION, NOT FACT". -someone who I offended and is unable to produce the facts in question.

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Nubo
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Re: Methane leaks

Tue Dec 31, 2019 3:54 am

Oilpan4 wrote:
Tue Dec 31, 2019 12:31 am
If it's that easy why doesn't the epa get them selves one like that and ride around cutting huge tickets?
If 10% of these methane leaks are actually methane leaks it would pay for its self a few times before lunch on its first day in service.
Image
I noticed you're still working with polymers.

WetEV
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Re: Methane leaks

Tue Dec 31, 2019 9:21 am

Oilpan4 wrote:
Mon Dec 30, 2019 10:08 pm
WetEV wrote:
Mon Dec 30, 2019 8:54 am
Oilpan4 wrote:
Mon Dec 30, 2019 8:33 am
Literally everything hot or cold they could see was "a methane leak".
You know this... how?
That's what the article said did you not read it?
Show the quote.
WetEV
#49
Most everything around here is wet during the rainy season. And the rainy season is long.
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