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- W2897743800 abstract "Catalytic converters mitigate carbon monoxide, hydrocarbon, nitrogen oxides and particulate matter emissions from internal combustion engines, and allow meeting the increasingly stringent emission regulations. However, catalytic converters experience light-off issues during cold start and warm up. This paper reviews the literature on the thermal management of catalysts, which aims to significantly reduce the light-off time and emission concentrations through appropriate heating methods. In particular, methods based on the control of engine parameters are easily implementable, as they do not require extra heating devices. They present good performance in terms of catalyst light-off time reduction, but bring high fuel penalties, caused by the heat loss and unburnt fuel. Other thermal management methods, such as those based on burners, reformers and electrically heated catalysts, involve the installation of additional devices, but allow flexibility in the location and intensity of the heat injection, which can effectively reduce the heat loss in the tailpipe. Heat storage materials decrease catalyst light-off time, emission concentrations and fuel consumption, but they are not effective if the engine remains switched off for long periods of time. The main recommendation of this survey is that integrated and more advanced thermal management control strategies should be developed to reduce light-off time without significant energy penalty." @default.
- W2897743800 created "2018-10-26" @default.
- W2897743800 creator A5030174677 @default.
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- W2897743800 creator A5037331514 @default.
- W2897743800 creator A5073462693 @default.
- W2897743800 creator A5091812638 @default.
- W2897743800 date "2019-01-01" @default.
- W2897743800 modified "2023-10-11" @default.
- W2897743800 title "Review of thermal management of catalytic converters to decrease engine emissions during cold start and warm up" @default.
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- W2897743800 doi "https://doi.org/10.1016/j.applthermaleng.2018.10.037" @default.
- W2897743800 hasPublicationYear "2019" @default.
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