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| Comparative Study on Effect of Type of Flame Arrester on Explosion-Proof Diesel Engine Performance |
| DOI：10.13949/j.cnki.nrjgc.2018.03.010 |
| Key Words:explosion proof diesel engine corrugated flame arrester exhaust backpressure flow resistance |
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| Abstract:Comparative CFD-Fluent fluid simulation was performed of the inside flow and pressure fields of two types of flame arrester: the flat and corrugated. The results show that the corrugated flame arrester performs better in reducing exhaust backpressure than the flat one and it ensures explosion proof effectiveness. The bench testing of TY4100QFB diesel engine equipped with flat or corrugated flame arresters of equivalent flow area was conducted to analyze the effect of exhaust backpressure on the power, economy and emissions of the engine at full speed and full load. The test results show, on account of large porosity ratio, the corrugated flame arrester has a significant effect on reducing exhaust backpressure, optimizing combustion and reducing NOx, CO and PM, with the average reductions of CO, NOx, PM emissions being 8.5%, 4.6% and 11.45% respectively, but output power and fuel consumption have no obvious change. Moreover, the corrugated flame arrester is smaller and lighter. |
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