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Humidity Effects on Engine Nitric Oxide Emissions at Steady-State Conditions
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Sector:
Event:
Mid-Year Meeting
Language:
English
Abstract
The effect of humidity change on engine nitric oxide emission during operation on the engine dynamometer was found to be a function of air-fuel ratio, observed nitric oxide concentration level, and observed humidity level. Equations and graphs to adjust nitric oxide concentrations for humidity change were derived. Adjustments in NO concentration varied from 2-9 ppm per grain moisture change in absolute humidity.
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Authors
Citation
Robison, J., "Humidity Effects on Engine Nitric Oxide Emissions at Steady-State Conditions," SAE Technical Paper 700467, 1970, https://doi.org/10.4271/700467.Also In
References
- Brown W.J. Gendernalik S.A. Kerley R.V. Marsee F.J. “Effect of Engine Intake-Air Moisture on Exhaust Emissions.” Paper 700107 SAE Automotive Engineering Congress Detroit January 1970
- Piken A.G. Ruof C.H. “Chemical Composition of Automobile Exhaust and A/F Ratio.” Ford Motor Co. Technical Report SL 68-54 1968
- D'Alleva B.A. Lovell W.G. “Relation of Exhaust Gas Composition to Air-Fuel Ratio.” SAE Journal 38 1936 90
- Eltinge L. “Fuel-Air Ratio and Distribution from Exhaust Gas Composition.” SAE Transactions 77 1968 paper 680114
- Foxboro Technical Information Bulletins 19-30a, b, and c The Foxboro Co. Foxboro, Mass. March 20 1959