Testing of the Exhaust Gases Temperature Difference （AT）
Testing of the Exhaust Gases Temperature Difference （AT）
摘要
The purpose of this paper is to investigate the efficiency of the three way catalyst by testing the exhaust gases temperature difference （AT=Tinlet-Toutlet） at the inlet and outlet of the catalyst using different fuel mixtures. The tests were carried out on a catalyst engine, under full load conditions, using as a fuel gasoline and ethanol mixtures. During the test the CO and HC emissions were measured in different engine speeds （1000, 2000 and 3000 rpm） and different fuel mixtures. The catalyst inlet （Ti） and outlet （To） temperatures were also monitored. It has been noticed that the use of ethanol as fuel results in the CO and HC decrease, with simultaneous temperature difference decrease （AT） at the catalyst when the engine function under full load conditions.
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