A Novel Air Filter Element from Wood Fiber Capable of Improving Engine Performance — Parameters Optimization and Experimental investigation
2022
Gao, Qi | Guo, Xiurong | Du, Danfeng | Sun, Chaowei | Zhao, Yue
The air filter element of the engine can purify the air entering the combustion chamber to ensure the reliable operation of the engine, but at the same time, the pressure drop generated by the filter element also has a significant influence on the engine performance. In current work, a novel air filter element from wood fiber (AFW) was proposed. With the pressure drop across the AFWF as the optimization target, three different shapes of AFW were considered, namely flat shape, W shape, and sine wave shape. The geometrical parameters of the AFW were optimized by numerical approach, and the influence of optimal AFW and traditional pleated filter element on engine performance was tested through engine bench experiment, the results of which showed that: the sine wave-shaped AFW with filling rate of 0.05, tₛ = 20 mm, A = 10 mm, and S = 100/3 mm is the optimal AFW; under the engine torque of 40 N·m and engine speed of 2000 RPM, the specific fuel consumption of the engine equipped with optimal AFW is 0.0884 kg/kW·h lower than that of pleated filter element; compared with pleated filter element, the engine equipped with optimal AFW has lower exhaust temperature at the same engine speed.
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