Updated Lectures on Natural Gas Greenhouse Gas Limits, and Russian Natural Gas

I have updated the Greenhouse Gas version in the previous post to include a figure for how the comparison of methane versus carbon dioxide warming by weight over counts methane molecules by about a factor of three.  Instead of the warming of methane over carbon dioxide being a factor of 34 by weight, it is reduced to a factor of 12 by molecule, which is important in referring to energy production and fugitive methane leakage.

I also include a figure that illustrates the calculation of what the amount of leakage of methane or the breakeven point would be if old 33% efficient coal plants were replaced by 60% efficient combined cycle gas turbine natural gas plants.  The breakeven point would be 20% leakage of fugitive methane compared to methane used for power production.  This is compared to the previous breakeven of 3% calculated using the incorrect comparison by weight, and replacing 33% efficient coal plants only by 33% efficient natural gas plants.

Natural Gas Lecture Update

About Dennis SILVERMAN

I am a retired Professor of Physics and Astronomy at U C Irvine. For a decade I have been active in learning about energy and the environment, and in lecturing and attending classes at the Osher Lifelong Learning Institute (OLLI) at UC Irvine.
This entry was posted in California Power Mixes, Climate Change, Electric Power, Energy Efficiency, Fossil Fuel Energy, Greenhouse Gas Emissions, Natural Gas, Renewable Energy. Bookmark the permalink.

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