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Measurement of Gaseous HAP Emissions from Idling Aircraft as a Function of Engine and Ambient Conditions (2012) / Chapter Skim
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Pages 17-20

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From page 17...
... This empirical model can also account for the effect of ambient temperature and engine operation at rotation speeds less than the 7% thrust condition. V.1 Proposed Empirical Model In the empirical model proposed here, the effect of ambient temperature and sub-7% fuel flow are treated as independent factors that influence a base reference emission index defined at 288K and 7% thrust.
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From page 18...
... Datasets available to develop fuel flow/ambient temperature model for predicting near-idle emissions. The red datasets were collected for the CFM56-2C combustor on the NASA DC-8.
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From page 19...
... Near-idle emission rates (not emission index) as a function of ambient temperature and fuel flow.
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From page 20...
... Figure V-5. Relative emission index adjusted for fuel flow rate for the example calculation described in the text.
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Key Terms

  • emission index
  • fuel flow
  • ambient temperature
  • emissions scaling
  • icao databank

  • flow rate
  • emission indices
  • voc emissions
  • time series
  • intermediate fuel

  • data record
  • thrust condition


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