Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations waross on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  1. Roger.Bryenton

    Methane Decay in atmosphere

    Interesting discourse. Thank you all, very much. The decay of methane is a huge aspect of climate change, thus the chemistry and decay critical. At about 10% per year, this is a HUGE methane flow, just to replace that amount, every year. The growth (rate of increase) of methane is around...
  2. Roger.Bryenton

    Methane Decay in atmosphere

    Thx GBTorpenhow ... I treated it as a "stock" to start with, allowing it to decay, without replacement, then cumulatively over 14 years it was down to 25%. (Dreaded Covid: lungs and brain, just "ain't the same"....). Then I got confused as I mixed the "stock" with a flow ... I also got...
  3. Roger.Bryenton

    Methane Decay in atmosphere

    Thx dik .... I am actually trying to determine what the flow is to replace CH4 decaying, in order to keep an almost constant concentration in the atmosphere. I believe it is 10% per year, which is a massive amount! By comparison CO2 takes only a small fraction of that due to it's long...
  4. Roger.Bryenton

    Methane Decay in atmosphere

    Hello Engineers, Help Needed on Methane Decay ... Thx I am researching climate change, and with Covid and a few years, seems foggier that usual. However, from what I can determine, methane, CH4 has a half-life of about 7 years. That means it decays at about 10% per year. The concentration...

Part and Inventory Search