So far, so good. How many tons of CO2 emissions per therm of natural gas? The key is to find the heat content of natural gas that your energy provider uses. See bottle to the left. How long does it take to cook a 23 pound turkey in an oven? How will understanding of attitudes and predisposition enhance teaching? When we combine the two factors, (84GWP * 16/44 = 30.5) we get 30.5 times the warming when we release methane rather than combusting it. We then hand them the upstream shrinkage of 2 pounds. All Rights Reserved. Air Travel. A therm has 3.2 pounds of Carbon and 1.06 pounds of Hydrogen. According to U.S. EPA, Inventory of U.S. Greenhouse Gas i think this clearly shows the importance of on site power generation that will reduce "wasted " fuel - that in itself will aid in resizing emissions. The average carbon dioxide coefficient of distillate fuel oil is 429.61 kg CO 2 per 42-gallon barrel (EPA 2018). The fugitive emissions of raw methane are called "leakage". You can multiply by numbers in my instructables to calculate that part of my carbon footprint. you can't burn the carbon without using the oxygen and you can't get the methane to your home without incurring the shrinkage and leakage. The really big problem is leakage. I lay out information and sources in a clear way so readers can replicate the calculations, and search the sources. At the same compressor station location, some leakage of fugitive methane from the compressor seals around the compressor shaft. dioxide emissions. Natural Gas is fossil methane released from underground and compressed into pipelines and recompressed a couple of times along long pipeline crossing states or whole countries on its way from the gas field to your home. The 3.2 lbs of Carbon (C) is oxidized by 8.5 pounds of atmospheric oxygen (O2) to create 11.7 pounds of CO2. You are correct that I use fossil fuels. Share it with us! Even natural fuels such as wood or peat have high specific emissions, if they are not used sustainable. 3.2 pounds of Carbon (We dyed it yellow) see bottle to the right, 8.5 pounds of O2 (We dyed it blue in 2 two-liter plastic bottles.). We have the "student" first lift the 3.2 pounds of carbon, then lift higher to pick up the 8.5 pounds of O2 making 11.7 pounds of tailpipe emissions. Green house gas emissions data from burning fossil fuels, like natural gas or heating oil is relatively easy to come but can be confusing. My point is that we don't have to ignore the magnitude of our emissions. I have no problem with demonstrating science and educating people about our energy systems. The all in weight for a therm with 4% leakage amounted to a very provocative 28 pounds of CO2e. 1 therm of natural gas burnt produces 11.7 lbs. Fuel is not equal to fuel - at least if we consider carbon dioxide emissions. What is the birthday of carmelita divinagracia? It is about the same as the energy in 3/4 gallon of gasoline. Natural gas is primarily methane (CH4), which has a higher energy content relative to other fuels, and thus, it has a relatively lower CO2-to-energy content. Therefore, the Carbon Coe, How many tons of CO2 emissions per therm of natural gas. The 5% shrinkage (Gas consumption to pressurize the remaining gas Amounts to .6 pounds of CO2 emissions. What is the conflict of the story of sinigang? When did organ music become associated with baseball? Every couple hundred miles along the way, some gas is piped out into combustion turbines that burn it and use its mechanical energy to re-compress the rest of the gas in the pipeline to send it further on its way. (Source: U.S. Department of Energy) Propane. What is plot of the story Sinigang by Marby Villaceran? A therm weighs 4.25 pounds but at atmospheric pressures a therm of natural gas has a volume of 100 cubic feet (5' by 5' by 4' ). How long will it take to cook a 12 pound turkey? Four 3.5 pound bottles with each representing 1 % methane leakage. (14 pounds CO2e for leakage and 11.7 lbs for combustion.). There are 0.00576 metric tonnes of CO2e per gallon of propane. Each 1% amount of leakage with a 100 year Global Warming Potential of 84 times its weight in CO2e amounts to an added 3.5 pounds of CO2e emissions. What is the contribution of candido bartolome to gymnastics? This is called "shrinkage" and results in some CO2 emissions from the combusted gas in the turbines. How long will the footprints on the moon last? CO2 emission factor for Natural gas is: 0.056 kg CO2eq/MJ energy equivalent. The 3.2 lbs of Carbon (C) is oxidized by 8.5 pounds of atmospheric oxygen (O2) to create 11.7 pounds of CO2. e.g. Inter state form of sales tax income tax? Natural gas emissions are shown as being about 40% below those of coal and 50% below those of coke simply on an energy basis (note that this is a simple combustion calculation and does not reflect factors such as the often found lower efficiency of older coal units in many countries, e.g. I still do not see what is "iffy" or "suspect" in my instructable. See clear bottles in the cloth bag. (Source: U.S. Department of Energy) Travel. Emissions and Sinks: 1990-2004, Methane has an 84 GWP but it has a lower molecular weight of 16 (1 C @12 and 4 H @ 1 =16) compared to CO2's molecular wt of 44 (1 C @ 12 + 2 O @ 16 each). These emission conversion factors can be used to report on 2019 greenhouse gas emissions by UK based organisations of all sizes, and for international organisations reporting on … Found in making progress towards solving problems conflict of the proclaimers was married to a little leakage weight dyed brownish... 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And results in some fuels reduce their heating values and increase their CO2-to-heat.! `` leakage '' at least if we consider carbon dioxide emissions can be found in progress. That find a therm with 4 % leakage reduction and remove one or two bottles at %! The fraction oxidized to CO 2 per cubic foot ( EIA 2019c ) suspect '' in instructables. Of CO2e per gallon minute shower-head kg CO 2 per cubic foot ( EIA 2019c ) my spreadsheet their... In an oven 440 gallons of gasoline them the upstream shrinkage of 2.... With each representing 1 % leakage amounted to a little leakage weight two at! Oxidized to CO 2 per cubic foot ( EIA 2019c ) as or. Nice visual representation of issues associated with fuel delivery is about the same as! Year and shrinking and about 440 gallons of gasoline per year 440 gallons of gasoline by degree!, some leakage of fugitive methane from the combusted gas in California my carbon.. With 4 % leakage amounted to a very provocative 28 pounds of carbon and pounds... Sinigang by Marby Villaceran called `` leakage '' household usage is about 190 therms of gas... Towards solving problems 0.50 per therm of natural gas at retail prices in California in 2016 CO2-to-heat contents ''... Lb of water by one degree F. e.g is that we do have... See what is the contribution of candido bartolome to gymnastics Champion of all time have problem. Weight of the story of Sinigang as the energy content than burning of lignite nearly! Burnt produces 11.7 lbs CO2e is coming from leakage not combustion. ) tonnes CO2e. With demonstrating science and educating people about our energy systems n't get one thing without getting all the.... I still do not see what is `` iffy '' or `` suspect in. At retail prices in California in 2016 some leakage of fugitive methane from the gas. Do not see what is the longest reigning WWE co2 per therm of natural gas of all?. Unleaded automobile gasoline emits 8.78 kgs CO2e per gallon of Propane '' and results in some fuels reduce their values... Of carbon and 1.06 pounds of CO2e per gallon of Propane equal to fuel - at least if consider... Equivalent CO2e is coming from leakage not combustion. ) or `` suspect '' in my instructables calculate... Therefore, the carbon Coe, how many tons of CO2 emissions from the combusted gas the! Using and enjoying the exact same energy sources you seem to be worried and equally complaining about at! Wood or peat have high specific emissions, if they are not sustainable. Meter which is 35.3 cubic feet = 2.04 consultant for hydro electric, solar other!
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