Dziubak Tadeusz
Faculty of Mechanical Engineering, Institute of Vehicles and Transport, Military University of Technology, Gen. Sylwestra Kaliskiego Street 2, 00-908 Warsaw, Poland.
Materials (Basel). 2024 Jul 2;17(13):3249. doi: 10.3390/ma17133249.
The purpose of this study was to empirically evaluate the performance of fibrous materials that meet the criteria for inlet air filtration in internal combustion engines. The characteristics of filtration efficiency and accuracy, as well as the characteristics of flow resistance, were determined based on the mass of dust accumulated in the filter bed during the filtration process. Single-layer filter materials tested included cellulose, polyester, and glass microfiber. Multilayer filter media such as cellulose-polyester-nanofibers and cellulose-polyester were also examined. A new composite filter bed-consisting of polyester, glass microfiber, and cellulose-and its filtration characteristics were evaluated. Utilizing specific air filtration quality factors, it was demonstrated that the composite is characterized by high pre-filtration efficiency (99.98%), a short pre-filtration period ( = 4.21%), high accuracy ( = 1.5-3 µm) for the entire lifespan of the filter, and a 60-250% higher dust absorption coefficient compared to the other tested materials. A filtration composite bed constructed from a group of materials with different filtration parameters can be, due to its high filtration efficiency, accuracy, and dust absorption, an excellent filter material for engine intake air. The composite's filtration parameters will depend on the type of filter layers and their order relative to the aerosol flow. This paper presents a methodology for the selection and testing of various filter materials.
本研究的目的是通过实证评估符合内燃机进气过滤标准的纤维材料的性能。过滤效率和精度特性以及流动阻力特性是根据过滤过程中滤床中积聚的灰尘质量来确定的。测试的单层过滤材料包括纤维素、聚酯和玻璃微纤维。还研究了多层过滤介质，如纤维素 - 聚酯 - 纳米纤维和纤维素 - 聚酯。评估了一种由聚酯、玻璃微纤维和纤维素组成的新型复合滤床及其过滤特性。利用特定的空气过滤质量因子，结果表明该复合材料具有高预过滤效率（99.98%）、短预过滤期（= 4.21%）、在过滤器的整个使用寿命期间具有高精度（= 1.5 - 3 µm），并且与其他测试材料相比，灰尘吸收系数高60 - 250%。由一组具有不同过滤参数的材料构建的过滤复合床，由于其高过滤效率、精度和灰尘吸收能力，可能是一种用于发动机进气的优质过滤材料。复合材料的过滤参数将取决于过滤层的类型及其相对于气溶胶流的顺序。本文提出了一种选择和测试各种过滤材料的方法。
