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Articoli di riviste sul tema "Pleated filter cartridges"

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Autore: Grafiati

Pubblicato: 8 giugno 2024

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1

Yi, Jiangang, Jiayi Duan, Rui Yuan, Wen Bo e Xiaolong Ruan. "Modeling and Cleaning Performance Optimization of Conical Filter Cartridge of Gas Turbine Intake Filter". Processes 11, n. 9 (29 agosto 2023): 2584. http://dx.doi.org/10.3390/pr11092584.

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Intake quality is crucial to gas turbines’ operation. The cartridge filter in the gas turbine intake system filters the gas and outputs a highly clean gas into the gas turbine, while pulse cleaning technology ensures the continuous and efficient operation of cartridge filters. While the current cylindrical pleated filter cartridge used in pulse cleaning usually suffers from insufficient upper cleaning, the conical pleated filter cartridge can effectively solve this issue by providing a greater upper cleaning area with significant application prospects. Despite the existing potential, research on conical filter cartridge cleaning performance is limited; thus, this paper aims to investigate the advantages of pulse cleaning using a conical filter cartridge via numerical simulation. Results demonstrate that while the conical filter cartridge enhances the cleaning strength, cleaning uniformity decreases slightly. To address this shortcoming, this paper innovatively proposes a combination of scattering nozzles and conical filter cartridges to explore the impact of the installation position of scattering nozzles on the cleaning. The modeling and cleaning performance analysis in our research illustrates that the optimal cleaning effect can be achieved under specific conditions when the scattering nozzle is installed parallel to the conical filter cartridge’s inlet. The research work in this paper provides a solution for optimizing the pulse cleaning performance of conical filter cartridges.

2

Chen, Shaowen, e Yun Gong. "Numerical study of the effects of cartridge shape on the reverse pulsed flow cleaning of pleated cartridge filters". Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering 233, n. 2 (13 luglio 2018): 371–83. http://dx.doi.org/10.1177/0954408918787096.

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Patchy cleaning is one of the principal factors resulting in the reduction of the efficiency and quality of reverse pulse-jet cleaning as well as the service lifetime of filtration units. To resolve the above issues, a new pleated cartridge shape was introduced in this study to improve the cleaning efficiency and quality of pleated filter cartridges. To calculate the transient flow and pressure fields for a simple filtration system with one filter cartridge in the reverse pulse-jet cleaning process, an unsteady computational fluid dynamics model was developed via the commercial computational fluid dynamics software of ANSYS CFX. The transient static pressure fields for filter cartridges under four different pleated cartridge shapes were studied. The conventional cylindrical cartridge was selected as the base-model of filter cartridge and contrasted with other three cartridge shapes. It was found that the convergent–divergent cartridge was able to effectively improve the cleaning performance without the increase of tank pressure. Different pleated cartridge shapes are expected to be able to redistribute the pressure drop across the porous media along the filter height and to improve the flow behavior after pulsing gas releasing from the nozzle. For convergent–divergent cartridge shape, the peak pressure on the inner surface of porous media has an obvious increase and the peak pressure arriving time is earlier than other cases. It shows that the reverse flow has much more competence to remove the dust powder or cake from the porous media. At the same time, the area-averaged pressure drop at the bottom section of the filter has an increase of 50% under the cartridge with a convergent–divergent shape compared to that with a cylindrical shape. It is considered to enhance the cleaning mechanical stress at the bottom section of the filter cartridge. The better cleaning performance was observed in the medium, with 150% increase compared to that with a cylindrical shape. Furthermore, the cleaning performance gets improved because the value enhances on the top section. The redistribution of pressure drop observed is mainly because the special geometric construction of pleated cartridges compresses the flow on the medium and produce higher pressure drop there. Further studies indicate that the improved cleaning performance was observable under the consideration of the tank pressure reduction and variation of media permeability during each cleaning phase, and the change of pleated cartridge shapes can also improve the cleaning performance when combined with other improvement methods.

3

Qiu, Jun, Daishe Wu, Da-Ren Chen e Jianlong Li. "Reverse pulsed-flow cleaning of pleated filter cartridges having an inner pleated filter cone". Process Safety and Environmental Protection 146 (febbraio 2021): 481–89. http://dx.doi.org/10.1016/j.psep.2020.11.025.

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4

Peinador, René I., Mohamed Kaabouch, Roger Ben Aim e José I. Calvo. "Non-Destructive Characterization of Industrial Membrane Cartridges by Using Liquid–Liquid Displacement Porosimetry (LLDP)". Membranes 10, n. 12 (25 novembre 2020): 369. http://dx.doi.org/10.3390/membranes10120369.

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This works aims to propose and demonstrate the accuracy of a novel method of characterization aimed for non-destructive analysis of microfiltration (MF) membrane cartridges. The method adapts conventional liquid–liquid displacement porosimetry (LLDP) for performing an in-line porosimetric analysis of the membrane cartridges, getting their pore size distributions (PSDs) and mean pore diameters (davg). Six commercial filtration cartridges featuring polyethersulfone (PES) pleated membranes were analyzed using a newly designed filtration rig, based on the liquid–liquid displacement porometer, developed at the Institut de la Filtration et des Techniques Séparatives (IFTS) and operated at constant flow. The experimental rig allows the direct and non-destructive characterization of the cartridge in its original presentation. Results have been compared with those obtained by using gas–liquid displacement porosimetry (GLDP) on small membrane coupons detached from such cartridges. The comparison allows us to conclude that the proposed method gives enough accuracy in the determination of porosimetric characteristics of the filters. This method can be used as a precise characterization technique for a non-destructive in-line study of filter performance and can be envisaged as useful to periodic quality or fouling control of the commercial cartridges.

5

Dziubak, Tadeusz. "Experimental Studies of PowerCore Filters and Pleated Filter Baffles". Materials 15, n. 20 (18 ottobre 2022): 7292. http://dx.doi.org/10.3390/ma15207292.

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The material most commonly used to filter and clean the intake air of vehicle internal combustion engines is pleated filter paper, which in most cases is shaped in the form of a cylinder or panel. The production technology has a low cost and is not complicated. In addition to high separation efficiency and filtration performance, pleated filter media are required to have low initial pressure drop, which depends on the geometry of the bed. Much research has been conducted in this area. Dust accumulated in the filter bed causes an increase in pressure drop, which is the cause of deformation and sticking of pleats. The lack of stability of the pleats, the need to strengthen them, and the need to obtain small sizes while achieving high efficiency and accuracy of filtration of engine intake air was the reason for the development of a different design and a new technology for making filter cartridges called PowerCore. The distinctive feature of these filters is axial flow in one direction of the air stream, which avoids turbulence and thus minimizes pressure drop. This paper presents a comparative analysis of a standard PowerCore and PowerCore G2 filter bed and two cylindrical filters with a pleated filter bed made of cellulose and polyester. The conditions and methodology of experimental testing of filters with test dust are presented. During the tests, the characteristics of separation efficiency and filtration performance, as well as pressure drop as a function of the mass of dust retained on the filter of two PowerCore filters and two cylindrical filters were performed. Three specimens of test filters with the same filtration area were made from each sample of filter bed. The results showed that in each test of the filter bed, there is an initial filtration period characterized by low (96–98%) initial separation efficiency and the presence of large (dpmax) dust grains. As the dust loading of the bed increases, the separation efficiency and filtration performance obtain higher and higher values. The initial period of filtration ends when the conventional value (99.9%) of separation efficiency is reached. The duration of this period depends on the type of filter bed and for the PowerCore G2 filter ends for a dust loading of km = 33.1 g/m2, and for the cellulose filter for km = 117.3 g/m2. During the initial period, the air behind the PowerCore G2 filter contains grains with sizes in the range of dpmax = 9–16 µm. Behind the cellulose filter, dust grains are much larger, dpmax = 17–35 µm. The total operating time of the PowerCore G2 filter, limited by the achievement of the permittivity resistance Δpwdop = 3 kPa, is twice that of the other filter compositions tested.

6

Chen, Shaowen, e Da-Ren Chen. "Annular-slit nozzles for reverse flow cleaning of pleated filter cartridges". Separation and Purification Technology 177 (aprile 2017): 182–91. http://dx.doi.org/10.1016/j.seppur.2016.10.050.

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7

Li, Jianlong, Peng Wang, Daishe Wu e Da-Ren Chen. "Numerical study of opposing pulsed-jet cleaning for pleated filter cartridges". Separation and Purification Technology 234 (marzo 2020): 116086. http://dx.doi.org/10.1016/j.seppur.2019.116086.

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8

Cuiping, Yan, Liu Guijian e Chen Haiyan. "VARIETY BEHAVIORS OF DEPTH AND SURFACE FILTER MEDIA WITH THE AGES FOR PLEATED FILTER CARTRIDGES". Environmental Engineering and Management Journal 17, n. 11 (2018): 2577–86. http://dx.doi.org/10.30638/eemj.2018.256.

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9

Li, Jianlong, Wenjun Xie, Quanquan Wu, Da-Ren Chen, Dinglian Shi, Qiang Chen, Zhifei Ma e Daishe Wu. "Improved Pulsed-Jet Cleaning of Pleated Cone Filter Cartridges Using a Diffusion Nozzle". Aerosol and Air Quality Research 23 (2023): 220324. http://dx.doi.org/10.4209/aaqr.220324.

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10

Cuiping, Yan, Zhang Mingxing, Lin Longyuan e Chen Haiyan. "An analysis of a reverse pulse cleaning process using high-flow pleated fabric filter cartridges". Process Safety and Environmental Protection 113 (gennaio 2018): 264–74. http://dx.doi.org/10.1016/j.psep.2017.10.018.

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11

Persaud, Dave, Mikhail Smirnov, Daniel Fong e Pejman Sanaei. "Modeling of the Effects of Pleat Packing Density and Cartridge Geometry on the Performance of Pleated Membrane Filters". Fluids 6, n. 6 (5 giugno 2021): 209. http://dx.doi.org/10.3390/fluids6060209.

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Abstract (sommario):

Pleated membrane filters are widely used to remove undesired impurities from a fluid in many applications. A filter membrane is sandwiched between porous support layers and then pleated and packed into an annular cylindrical cartridge with a central hollow duct for outflow. Although this arrangement offers a high surface filtration area to volume ratio, the filter performance is not as efficient as those of equivalent flat filters. In this paper, we use asymptotic methods to simplify the flow throughout the cartridge to systematically investigate how the number of pleats or pleat packing density affects the performance of the pleated membrane filters. The model is used to determine an optimal number of pleats in order to achieve a particular optimum filtration performance. Our findings show that only the “just right”—neither too few nor too many—number of pleats gives optimum performance in a pleated filter cartridge.

12

Yan, Cuiping, Guijian Liu e Haiyan Chen. "Effect of induced airflow on the surface static pressure of pleated fabric filter cartridges during pulse jet cleaning". Powder Technology 249 (novembre 2013): 424–30. http://dx.doi.org/10.1016/j.powtec.2013.09.017.

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13

Fong, Daniel, e Pejman Sanaei. "Flow and transport in a pleated filter". Physics of Fluids 34, n. 9 (settembre 2022): 097102. http://dx.doi.org/10.1063/5.0102940.

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Abstract (sommario):

A pleated membrane filter consists of a porous membrane layer, which is surrounded by two supporting layers, and the whole structure is pleated and placed into a cylindrical cartridge. Pleated membrane filters are used in a variety of industrial applications, since they offer more surface area to volume ratio that is not found in equivalent flat filters. In this work, we introduce a novel three-dimensional model of a pleated membrane filter that consists of an empty region, a pleated region, and a hollow region. The advection diffusion equation is used to model contaminant concentration in the membrane pores along with Darcy's law to model the flow within the membrane and support layers, while the Stokes equation is used for the flow in the empty region and the hollow region. We further use the key assumptions of our model based on small aspect ratios of the filter cartridge and the pleated membrane to simplify the governing equations, which can be easily solved by numerical methods. By performing these steps, we seek to discover an optimal pleat packing density to find the optimum filter performance, while not exceeding a threshold for the particle concentration at the filter outlet.

14

Wakeman, R. J., N. S. Hanspal, A. N. Waghode e V. Nassehi. "Analysis of Pleat Crowding and Medium Compression in Pleated Cartridge Filters". Chemical Engineering Research and Design 83, n. 10 (ottobre 2005): 1246–55. http://dx.doi.org/10.1205/cherd.04183.

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15

Payment, Pierre, e Michel Trudel. "Wound fiberglass depth filters as a less expensive approach for the concentration of viruses from water". Canadian Journal of Microbiology 34, n. 3 (1 marzo 1988): 271–72. http://dx.doi.org/10.1139/m88-049.

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Abstract (sommario):

Wound fiberglass depth cartridge filters (25.4 cm) with a nominal porosity of 1 μm were used to concentrate viruses from large volumes of surface water. They were found to be an excellent, less expensive alternative to the 0.2-μm pleated cartridge filters normally used for the concentration of enteric viruses from water. More than 99% of experimentally seeded poliovirus was adsorbed to these filters when the pH of the water was adjusted to pH 3.5 and aluminium chloride was added to a final concentration of 0.001 M, as recommended for electronegative filters. In comparative recovery of indigenous viruses from river water, similar results were obtained with two 1-μm or a 3-μm + 0.2-μm filter combination. The cost of the two 1-μm filters is about Can. $26, while it is about Can. $58 for the other combination.

16

Sedlář, Milan, Tomáš Krátký e Jiří Langer. "Numerical and Experimental Investigation of Three-Dimensional Flow in Combined Protective Canister Filters". Fluids 7, n. 5 (17 maggio 2022): 171. http://dx.doi.org/10.3390/fluids7050171.

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This work deals with the numerical and experimental investigation of flow in the protective filters which combine fibrous pleats and the absorbent cartridge. The flow through the complete 3D geometry of all parts of the filters, including complex geometry of the pleats, is numerically modeled using high-quality computational grids. The sorbent filling, textile dividers as well as the material of filtration pleats are modeled as the porous media with the coefficients of the quadratic Forchheimer equation derived from the experiments in the laboratory located at the SIGMA Research and Development Institute. A comprehensive CFD analysis has been carried out using the ANSYS CFX package with the SST turbulence model, which combines advantages of both the high- and the low-Reynolds number turbulence models. The fully parametric description of the pleats enables the generation of high-quality structured computational grids for a wide range of pleat heights and widths and to use numerical shape optimization process. The numerical simulations show very good agreement of calculated and measured pressure drop for all variants of the complex geometry of the combined filter. To simulate a real application of the protective filter, the unsteady simulations which follow the human breathing pattern have been performed with the flow rate corresponding to the increased human activity.

17

Yan, Cuiping, Mingxing Zhang e Longyuan Lin. "On-line pulse-jet cleaning of pleated fabric cartridge filters for collecting pesticides". RSC Advances 5, n. 59 (2015): 48086–93. http://dx.doi.org/10.1039/c5ra04738b.

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18

Chen, Zeyu, Bichao Bao, Weihua Zhu e Zhongping Lin. "Effect of Test Dust on Performance Test for a Pleated Filter Cartridge". Aerosol and Air Quality Research 15, n. 6 (2015): 2436–44. http://dx.doi.org/10.4209/aaqr.2015.02.0125.

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19

Li, Jianlong, Shihang Li e Fubao Zhou. "Effect of cone installation in a pleated filter cartridge during pulse-jet cleaning". Powder Technology 284 (novembre 2015): 245–52. http://dx.doi.org/10.1016/j.powtec.2015.06.071.

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20

Li, Shihang, Hao Jin, Shuda Hu, Xiaoyu Tan, Hao Liu, Biao Xie, Kang Jianhong e Fubao Zhou. "Effect of novel built-in rotator on the performance of pleated cartridge filter". Powder Technology 356 (novembre 2019): 1001–7. http://dx.doi.org/10.1016/j.powtec.2019.08.052.

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21

Chen, Shaowen, e Da-Ren Chen. "Numerical Study of Reverse Multi-Pulsing Jet Cleaning for Pleated Cartridge Filters". Aerosol and Air Quality Research 16, n. 8 (2016): 1991–2002. http://dx.doi.org/10.4209/aaqr.2015.11.0645.

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22

He, Chunhong, Cuiping Yan, Cuiying Tang, Mei Huang, Ling Ren e Mingxing Zhang. "Nitrogen pulse jet cleaning of the pleated filter cartridge clogged with adhesive hygroscopic dusts". Process Safety and Environmental Protection 147 (marzo 2021): 430–38. http://dx.doi.org/10.1016/j.psep.2020.08.045.

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23

Li, Shihang, Fubao Zhou, Biao Xie e Fei Wang. "Influence of injection pipe characteristics on pulse-jet cleaning uniformity in a pleated cartridge filter". Powder Technology 328 (aprile 2018): 264–74. http://dx.doi.org/10.1016/j.powtec.2018.01.013.

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24

Park, Young‐Ok, Naim Hasolli e Young‐Woo Rhee. "Experimental Evaluation of Filter Performance of Depth Filter Media Cartridge with Varying the Pleat Count and the Cartridge Assembly Arrangement". Journal of Korean Association for Particle and Aerosol Research 8, n. 4 (30 dicembre 2012): 133–41. http://dx.doi.org/10.11629/jpaar.2012.8.4.133.

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25

Chen, Shaowen, Qiang Wang e Da-Ren Chen. "Effect of pleat shape on reverse pulsed-jet cleaning of filter cartridges". Powder Technology 305 (gennaio 2017): 1–11. http://dx.doi.org/10.1016/j.powtec.2016.09.013.

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26

Waghode, A. N., N. S. Hanspal, R. J. Wakeman e V. Nassehi. "NUMERICAL ANALYSIS OF MEDIUM COMPRESSION AND LOSSES IN FILTRATION AREA IN PLEATED MEMBRANE CARTRIDGE FILTERS". Chemical Engineering Communications 194, n. 8 (agosto 2007): 1053–64. http://dx.doi.org/10.1080/00986440701293140.

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27

Bémer, Denis, Roland Régnier, Yves Morele, Florence Grippari, Jean-Christophe Appert-collin e Dominique Thomas. "Study of clogging and cleaning cycles of a pleated cartridge filter used in a thermal spraying process to filter ultrafine particles". Powder Technology 234 (gennaio 2013): 1–6. http://dx.doi.org/10.1016/j.powtec.2012.09.035.

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28

Nassehi, V., N. S. Hanspal, A. N. Waghode, W. R. Ruziwa e R. J. Wakeman. "Finite-element modelling of combined free/porous flow regimes: simulation of flow through pleated cartridge filters". Chemical Engineering Science 60, n. 4 (febbraio 2005): 995–1006. http://dx.doi.org/10.1016/j.ces.2004.09.073.

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29

Chen, Shaowen, e Da-Ren Chen. "Cleaning of Filter Cartridges with Convergent Trapezoidal Pleat Shape via Reverse Multi-Pulsing Jet Flow". Aerosol and Air Quality Research 17, n. 11 (2017): 2659–68. http://dx.doi.org/10.4209/aaqr.2016.12.0539.

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30

Kumar, A., J. Martin e R. Kuriyel. "Scale-up of Sterilizing-grade Membrane Filters from Discs to Pleated Cartridges: Effects of Operating Parameters and Solution Properties". PDA Journal of Pharmaceutical Science and Technology 69, n. 1 (1 gennaio 2015): 74–87. http://dx.doi.org/10.5731/pdajpst.2015.01006.

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31

Hasolli, N., Y. O. Park e Y. W. Rhee. "Filtration performance evaluation of depth filter media cartridges as function of layer structure and pleat count". Powder Technology 237 (marzo 2013): 24–31. http://dx.doi.org/10.1016/j.powtec.2013.01.002.

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32

Li, Shihang, Fei Wang, Jie Xin, Biao Xie, Shuda Hu, Hao Jin e Fubao Zhou. "Study on effects of particle size and maximum pressure drop on the filtration and pulse-jet cleaning performance of pleated cartridge filter". Process Safety and Environmental Protection 123 (marzo 2019): 99–104. http://dx.doi.org/10.1016/j.psep.2019.01.002.

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33

Song, Xinyu, Fang Cao, Weifeng Rao e Peiwen Huang. "Simulation Optimization of an Industrial Heavy-Duty Truck Based on Fluid–Structure Coupling". Sustainability 14, n. 21 (4 novembre 2022): 14519. http://dx.doi.org/10.3390/su142114519.

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Abstract (sommario):

In order to realize the sustainable development of the field of automotive industrial engineering and reduce the emissions of heavy-duty trucks (HDTs), a simulation analysis method that combined fluid–structure coupling and a discrete phase model was proposed in this study. The pressure, velocity, and other parameters of an HDT air filter and its cartridge were analyzed by using CFX and the Static Structure module in the ANSYS software. The results showed that under six different flow rates, the error between the simulation results and the test results was basically less than 3% (the maximum error was 3.4%), and the pressure distribution of the fluid in the air filter was very uneven, leading to a severe deformation of 3.51 mm in the filter element. In order to reduce the pressure drop of the air filter and the deformation of the filter element, the position of the air inlet duct, the height of the filter element, and the number of folds of the air filter were optimized in this study. The optimization results showed that when the rated flow was 840 m3/h, compared with the original structure, the pressure drop of the air filter was reduced by 445 Pa, the maximum deformation of the filter element was reduced by 54.1% and the average deformation is reduced by 39.8%. After the optimization, the structural parameters of the air filter were as follows: the position of the air inlet moved down 126 mm along the shell, the filter height was 267 mm, and the pleat number of the filter element was 70. The simulation method and optimization design method of an air filter based on fluid–structure interaction presented in this study can be used to reduce the pressure drop, improve the engine performance, and reduce the amount of harmful emissions.

34

Wu, Quanquan, Xiaohai Li, Zhenqiang Xing, Qin Kuang, Jianlong Li, Shan Huang, Hong Huang, Zhifei Ma e Daishe Wu. "Inhibition of Dust Re-Deposition for Filter Cleaning Using a Multi-Pulsing Jet". Atmosphere 14, n. 7 (20 luglio 2023): 1173. http://dx.doi.org/10.3390/atmos14071173.

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The re-deposition of detached dust during online pulse-jet cleaning is an important issue encountered during filter regeneration. To reduce dust re-deposition, multi-pulsing jet cleaning schemes were designed and experimentally tested. A pilot-scale pulse-jet cleaning dust collector was built with one vertically installed pleated filter cartridge. The effects of pulse duration and interval on the pulse pressure were tested, and the dust re-deposition rate and mechanism were studied and analyzed. It was found that, for the single-pulsing jet, the pulse duration had a critical value of approximately 0.080 s in this test, above which the pulse pressure remained at approximately 0.75 kPa and did not increase further. For the multi-pulsing jet with a small pulse interval (less than approximately 0.10 s), the pulse flows superimposed and reached a higher pulse pressure with a slight inhibition of dust re-deposition. For the multi-pulsing jet with a long pulse interval (over 0.15 s), dust re-deposition was clearly inhibited. The re-deposition rate decreased from 63.8% in the single-pulsing scheme to 24.4% in the multi (five)-pulsing scheme with the same total pulse duration of 0.400 s. The multi-pulsing scheme lengthens the duration of reverse pulse flow, resulting in more elapsed time for the detached dust to freely fall, and inhibiting the re-deposition of dust. The elapsed time in the five-pulsing jet scheme with the recommended pulse duration of 0.080 s and interval of 0.25 s was 2.8 times higher than that of the single-pulsing jet with the same total pulse duration.

35

"Pleated filter cartridges". Metal Finishing 107, n. 12 (dicembre 2009): 51–52. http://dx.doi.org/10.1016/s0026-0576(09)80439-x.

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36

"Filter Quality of Pleated Filter Cartridges". Annals of Occupational Hygiene, 7 marzo 2008. http://dx.doi.org/10.1093/annhyg/men008.

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37

Huang, A. N., W. Y. Hsu, T. Fukasawa, T. Ishigami, K. Fukui e H. P. Kuo. "Performance Characterization of a Novel Compact Dust Collector with Pleated Filter Cartridges". Separation and Purification Technology, ottobre 2022, 122468. http://dx.doi.org/10.1016/j.seppur.2022.122468.

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38

Wu, Quanquan, Jianlong Li, Daishe Wu e Da-Ren Chen. "Effects of Overall Length and OD on Opposing Pulse-jet Cleaning for Pleated Filter Cartridges". Aerosol and Air Quality Research, 2020. http://dx.doi.org/10.4209/aaqr.2019.10.0527.

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39

Lin, Zijie, Jianlong Li, Da-Ren Chen, Quanquan Wu, Zhifei Ma e Daishe Wu. "Improved Performance of the Opposing Pulsed-jet Cleaning by Annular-slit Nozzles for Pleated Filter Cartridges". Separation and Purification Technology, settembre 2022, 122233. http://dx.doi.org/10.1016/j.seppur.2022.122233.

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40

Gao, Kangtai, Jianwu Chen, Quanquan Wu, Qing Wu, Jingge Xu, Dong Meng, Jianlong Li, Daishe Wu e Da-Ren Chen. "Numerical study on the design of multi-staged, opposing pulsed-jet cleaning (M-OPJC) for pleated filter cartridges". Separation and Purification Technology, settembre 2023, 124978. http://dx.doi.org/10.1016/j.seppur.2023.124978.

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41

Yit, Jing Ee, Bee Teng Chew e Yat Huang Yau. "The study of pleat geometry on the air filtration performance". Indoor and Built Environment, 13 dicembre 2022, 1420326X2211454. http://dx.doi.org/10.1177/1420326x221145413.

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Abstract (sommario):

Fibrous filter media is typically pleated to increase effective filtration area, but the pleat geometry could influence the filtration performance. The previous work focused on the pleat geometry numerically and mainly limited to the cartridge filters with small pleats while the study on the heating, ventilation and air-conditioning (HVAC) filters is limited. In this study, a full-size pleated fibrous air filter was used to investigate the effect of pleat geometry on the filtration performance experimentally with reference to the air filter test standard, ISO 16890. The pleat geometry was found to have an insignificant effect on the filtration efficiency. The optimum pleat ratios are 13.08–14.57 for minimum initial pressure differential and 9.96–11.75 for optimal specific resistance coefficient of dust cake, [Formula: see text]. The overall optimum pleat ratio range is 13.08–14.57 to obtain an optimal filtration performance at low initial pressure differential and low [Formula: see text] while attaining a high dust holding capacity. The findings of current work were obtained by a comprehensive study on the filtration performance including the clean and dust-loaded states of the HVAC filters, at the actual operating velocity and could be directly applied in the actual filter depth selection based on the AHU’s space limitation.

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"Pleated-cartridge filters". Metal Finishing 93, n. 5 (maggio 1995): 68. http://dx.doi.org/10.1016/0026-0576(95)90297-x.

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"Radial-pleated filter cartridge". Filtration & Separation 30, n. 4 (giugno 1993): 301. http://dx.doi.org/10.1016/0015-1882(93)80232-l.

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44

"High capacity pleated filter cartridge". Filtration & Separation 35, n. 6 (luglio 1998): 488. http://dx.doi.org/10.1016/s0015-1882(98)91244-7.

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45

"Backwashable pleated cartridge filter launched". Filtration & Separation 31, n. 7 (novembre 1994): 676. http://dx.doi.org/10.1016/0015-1882(94)80111-8.

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"Pleated cartridge filter elements for baghouse". Filtration & Separation 45, n. 4 (maggio 2008): 14. http://dx.doi.org/10.1016/s0015-1882(08)70081-8.

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47

Ebadiyan, Hamed, Saeed Zeinali Heris, Seyed Borhan Mousavi, Shamin Hosseini Nami e Mousa Mohammadpourfard. "The influence of nano filter elements on pressure drop and pollutant elimination efficiency in town border stations". Scientific Reports 13, n. 1 (1 novembre 2023). http://dx.doi.org/10.1038/s41598-023-46129-5.

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Abstract (sommario):

AbstractNatural gas stands as the most ecologically sustainable fossil fuel, constituting nearly 25% of worldwide primary energy utilization and experiencing rapid expansion. This article offers an extensive comparative analysis of nano filter elements, focusing on pressure drop and pollutant removal efficiency. The primary goal was to assess the superior performance of nano filter elements and their suitability as an alternative for Town Border Station (TBS). The research encompassed a six-month examination period, involving routine pressure assessments, structural examinations, and particle characterization of the filter elements. The results revealed that nano filters showed better performance in adsorbing aluminum than conventional filters, possibly due to their cartridge composition. Nano filters contained phosphorus, sulfur, and copper, while conventional filters lacked these elements. The disparity can be attributed to the finer mesh of the nano filter, capturing smaller pollutants. Although the nano filter had minimal silicon, the conventional filter showed some, posing concerns. Despite having 19 extra pleats, the nano filter maintained gas flow pressure while capturing more particles than the conventional filter.