Abstract In 2013, natural gas is 70–80% cheaper than jet fuel on an energy basis. As an alternative aviation fuel, natural gas may reduce operating costs. In this paper, we assess the use of liquefied natural gas (LNG) as a supplemental aircraft fuel in a military context, with detailed assessments of the Lockheed Martin C-130H and C-130J transport aircraft. We estimate the cost of retrofitting these aircraft to use LNG and the savings from reduced fuel expenses. We evaluate the societal impacts of LNG within a cost–benefit framework, taking into account resource consumption, human health impacts related to air quality, and climate damage. In order to compare alternative uses of natural gas in aviation, we include in our analysis Fischer–Tropsch (FT) jet fuel from natural gas as a drop-in alternative. Uncertainty analysis is performed with Monte Carlo simulations. We find that aircraft operators can save up to 14% on fuel expenses (retrofit costs included) by employing LNG retrofits, with a 95% confidence interval of 2–23%. Society can also benefit by 12% (3–20%) from LNG use as a result of improved surface air quality, lower resource consumption, and net climate neutrality. These results are highly dependent on fuel prices, the quantity and cost of the LNG retrofits, and the frequency and length of missions. FT jet fuel is not cost-competitive with conventional fuel and results in increased fuel expenses by 17%. FT fuel provides marginal societal benefits relative to jet fuel.
Economic and environmental assessment of liquefied natural gas as a supplemental aircraft fuel
Progress in Aerospace Sciences ; 66 ; 17-36
2014-01-01
20 pages
Article (Journal)
Electronic Resource
English
CRF , concentration–response function , DAPCA , development and procurement costs of aircraft , DCFROR , discounted cash flow rate of return , FAU , fleet aircraft utilization , FEU , forty-foot equivalent unit , FOB , freight-on-board , FT , Fischer–Tropsch , GHG , greenhouse gas , GTL , gas-to-liquid , GWP , global warming potential , HEFA , hydro-processed esters and fatty acids , IRR , internal rate of return , JFE , jet fuel equivalent , LH<inf>2</inf> , liquefied hydrogen gas , LNG , liquefied natural gas , LTO , landing and takeoff , PM , particulate matter , PM<inf>2.5</inf> , particulate matter with diameter below 2.5<hsp></hsp>µm , PPI , producer price index , R&D , research and development , RDT&E , research, development, testing and evaluation , RF , radiative forcing , UAG , unaccounted gas , UAV , unmanned aerial vehicle , VSL , value of a statistical life , Liquefied natural gas , Climate , Methane , Life cycle
Economic and environmental assessment of liquefied natural gas as a supplemental aircraft fuel
Online Contents | 2014
|Liquefied natural gas as a fuel for supersonic aircraft
NTRS | 1967
|Liquefied natural gas as a fuel for supersonic aircraft.
NTRS | 1967
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