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A Well-Mixed Thermal Reactor System for Automotive Emission Control
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English
Abstract
An experimental well-mixed thermal reactor system called RAM was devised, tested, and applied to several different size research vehicles. Low emissions were obtained because of the thorough mixing and quick warmup of the system which was aided by flameholders. The study indicates that the RAM concept represents a significant improvement over previously proposed thermal reactor systems.
Two versions of RAM were studied. One was operated fuel-rich to minimize NOx at the expense of fuel economy. The other was operated leaner and gave better fuel economy but less NOx control.
The best emission results obtained were 3.7 gm/mile CO, 0.08 hydrocarbons, and 0.72 NOx. The fuel economy debit was in the range of 17-22%. Better fuel economy, in the range of 10-17% debit, was obtained at NOx levels of 1.9 gm/mile.
Drivability was found to be good. Durability was not tested.
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Citation
Lang, R., "A Well-Mixed Thermal Reactor System for Automotive Emission Control," SAE Technical Paper 710608, 1971, https://doi.org/10.4271/710608.Also In
References
- Glass W. Kim D. S. Kraus B. J. “Synchrothermal Reactor System for Control of Automotive Exhaust Emissions.” SAE Transactions 79 1970 paper 700147
- Federal Register 35 219 Nov. 10 1970
- Glass W. Russell F. R. Wade D. T. Hollabaugh D. M. “Evaluation of Exhaust Recirculation for Control of Nitrogen Oxides Emissions.” Paper 700146 SAE Automotive Engineering Congress January 1970
- Federal Register 33 108 June 4 1968
- Federal Register 36 39 Feb. 26 1971
- Federal Register 36 40 Feb. 27 1971