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IMPACTT5A model : enhancements and modifications since December 1994 with special reference to the effect of tripled-fuel-economy vehicles on fuel-cycle energy and emissions
  • Published Date:
    1998-09-01
  • Language:
    English
Filetype[PDF-3.93 MB]


Details:
  • Publication/ Report Number:
    ANL/ESD/TM-154
  • Resource Type:
  • Corporate Publisher:
  • NTL Classification:
    NTL-ENERGY AND ENVIRONMENT-Air Quality ; NTL-ENERGY AND ENVIRONMENT-Alternative FuelsNTL-ENERGY AND ENVIRONMENT-ENERGY AND ENVIRONMENT ; NTL-ENERGY AND ENVIRONMENT-Environment Impacts ;
  • Format:
  • Abstract:
    NTIS Invoice: 21912;

    NTIS Order #:DE200112053

    Version 5A of the Integrated Market Penetration and Anticipated Cost of Transportation Technologies (IMPAC’IT5A) model is a spreadsheet-based set of algorithms that calculates the effects of advanced-technology vehicles on baseline fuel use and emissions. Outputs of this Argonne National Laboratory-developed model include estimates of (1) energy use and emissions attributable to conventional-technology vehicles under a baseline scenario and (2) energy use and emissions attributable to advanced- and conventional-technology vehicles under an alternative market-penetration scenario. Enhancements to IMPACTT made after its initial documentation in December 1994 have enabled it to deal with a wide range of fuel and propulsion system technologies included in Argonne’s GREET model in a somewhat modified three-phased approach. Vehicle stocks are still projected in the largely unchanged STOCK module. Vehicle-miles traveled, fuel use, and oil displacement by advanced-technology vehicles are projected in an updated USAGE module. Now, both modules can incorporate vehicle efficiency and fuel share profiles consistent with those of the Partnership for a New Generation of Vehicles.

    Finally, fuel-cycle emissions of carbon monoxide, volatile organic compounds, nitrogen oxides, toxics, and greenhouse gases are computed in the EMISSIONS module via an interface with the GREET model that was developed specifically to perform such calculations. Because of this interface, results are now more broadly informative than were results from earlier versions of IMPACTT.

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