The effects of nano-copper additives were investigated through a thermogravimetric (TG) test, diesel engine bench test, and road driving test. The tests demonstrated that the nano-copper additive presented a good catalytic effect on the combustion of soot particles, which reduced the complete combustion temperature from 580 to 520 °C. The diesel engine bench test showed that particulate matter (PM), CO, and HC emissions were reduced by 99.9%, 81.30%, and 33.33%, respectively. The NOx emissions slightly increased due to the lack of carbon as a reducing substance in the exhaust gas. The road driving test with a diesel vehicle demonstrated that more stringent emission standards can be met without any upgrade to the engine.

中文翻译：

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含纳米铜添加剂的柴油发动机废气排放

通过热重（TG）测试，柴油发动机台架测试和道路行驶测试研究了纳米铜添加剂的作用。测试表明，纳米铜添加剂对烟灰颗粒的燃烧具有良好的催化作用，将完全燃烧温度从580℃降低到520℃。柴油发动机台架试验表明，颗粒物（PM），CO和HC排放分别减少了99.9％，81.30％和33.33％。由于排气中缺乏作为还原物质的碳，因此NOx排放量略有增加。柴油车的道路驾驶测试表明，无需对发动机进行任何升级即可满足更严格的排放标准。