Engineering Conferences International ECI Digital Archives Wastewater and Biosolids Treatment and Reuse: Bridging Modeling and Experimental Studies Proceedings Spring 6-11-2014 CFD optimized woven filter media for wastewater application Markus Knefel GKD Follow this and additional works at: http://dc.engconfintl.org/wbtr_i Part of the Environmental Engineering Commons Recommended Citation Markus Knefel, "CFD optimized woven filter media for wastewater application" in "Wastewater and Biosolids Treatment and Reuse: Bridging Modeling and Experimental Studies", Dr. Domenico Santoro, Trojan Technologies and Western University Eds, ECI Symposium Series, (2014). http://dc.engconfintl.org/wbtr_i/22 This Conference Proceeding is brought to you for free and open access by the Proceedings at ECI Digital Archives. It has been accepted for inclusion in Wastewater and Biosolids Treatment and Reuse: Bridging Modeling and Experimental Studies by an authorized administrator of ECI Digital Archives. For more information, please contact franco@bepress.com.
CFD OPTIMIZED WOVEN FILTER MEDIA FOR WASTEWATER APPLICATION (BY USING AND ) SLIDE 1
HEADQUARTER IN DUEREN, GERMANY FAMILY-OWNED, FOUNDED IN 1925 408 EMPLOYEES IN DUEREN 623 EMPLOYEES WORLDWIDE (January 2013) SLIDE 2
GKD World Wide Weave 01. GKD GERMANY, Dueren (Headquarter) 02. GKD UK, Sherburn in Elmet 03. GKD FRANCE, La Roque d Anthéron 04. GKD SPAIN, Barcelona 05. GKD USA, Cambridge 06. GKD LATINAMERICA, Santiago de Chile 07. GKD SOUTH AFRICA, Randfontein 08. GKD INDIA, Jaipur 09. GKD CHINA, Beijing 10. GKD MIDDLE EAST, Dubai 11. GKD MIDDLE EAST, Doha SLIDE 3
ALIMINI BEACH SLIDE 4
SLIDE 5
SLIDE 6
CONSTRUCTION OF ELEMENTS SLIDE 7
SOME OF OUR APPLICATIONS SLIDE 8
SOME OF OUR APPLICATIONS SLIDE 9
APPLICATION E.G. SLUDGE DEWATERING VISUALIZATION OF WEAROUT SLIDE 10
APPLICATION E.G. ROTARY DISC FILTER SLIDE 11
GEODICT S TOOL: WEAVEGEO SLIDE 12
GEODICT S TOOL: WEAVEGEO SLIDE 13
DETERMINATION OF BIGGEST OPENING SLIDE 14
GEODICT S TOOL: FLOWDICT 2D VELOCITY THROUGH A WIRE MESH SLIDE 15
CALCULATION OF PERMEABILITY SLIDE 16
COMPARISON: CFD SIMULATION RESULTS AND MEASUREMENTS SLIDE 17
VIRTUAL STRUCTURE REAL STRUCTURE CALCULATION OF FILTRATION EFFICIENCY SLIDE 18
CALCULATION OF OVERALL FILTRATION EFFICIENCY SLIDE 19
ANALYSIS OF PARTICLE RETENTION LAYERS SLIDE 20
ANALYSIS OF PARTICLE RETENTION LAYERS SLIDE 21
CALCULATED FLOW INSIDE A FILTER HOUSING USING SLIDE 22
CALCULATED BACKFLUSHING OF A FILTER CANDLEY USING SLIDE 23
CALCULATED BACKFLUSHING OF A FILTER CANDLEY USING SLIDE 24
USE OF ODW IN VERY FINE WATER FILTRATION SLIDE 25
CUSTOMER S PREVIOUS PRODUCT: PERFORATED PLATE (HONEYCOMB DESIGN) + 500 MESH + SLIDE 26
SIMULATED STRUCTURE SLIDE 27
SIMULATED STRUCTURE SLIDE 28
SIMULATED STRUCTURE No active filtration area above the perforated plate SLIDE 29
SIMULATED STRUCTURE No active filtration area above the perforated plate SLIDE 30
2 problems: 1. ~ 30.6% less active filtration area due to the perforated plate 2. Algae grow in those zones! SLIDE 31
OPTIMIZED DUTCH WEAVE (ODW) Very small openings fine filtration SLIDE 32
COMPARISON BETWEEN ODW AND 500 MESH OPENING TENSILE STRENGTH (WARP DIRECTION) TENSILE STRENGTH (WEFT DIRECTION) µm N/mm N/mm 500 mesh 25 7.0 7.6 ODW 11 11 (-56%) 11.5 (+64%) 15.6 (+105%) ODW 14 14 (-44%) 19.9 (+184%) 18.6 (+145%) ODW 18 18 (-28%) 20.1 (+187%) 19.5 (+156%) SLIDE 33
INTERFERENCE RESISTANCE*1 WORST CASE SCENARIO A active,2d : 21.4% FIRST LAYER OF PARTICLES EXTREMLY INFLUENCE THE TOTAL PRESSURE DROP A active,2d : 29.3% * 1 : TICHY, J., PHD WORK AT UNIVERSITY KAISERSLAUTERN (2007) SLIDE 34
SLOT PORE SHAPE ONLY SMALL PARTICLES CAN PASS THROUGH HIGH PERMEABILITY NO / LESS CLOGGING SLIDE 35
NEXT GKD S PROPOSAL FOR OPTIMIZATION: NOT TO VERTICALLY BACK-FLUSH THE ODW, BUT DIAGONAL. vertical diagonal 16% MORE EFFECTIVE SLIDE 36
CONCLUSION CFD SIMULATION IS A POWERFUL TOOL TO UNDERSTAND WHAT HAPPENS INSIDE! SOME WOVEN WIRE MESHES ARE ENGINEERED PRODUCTS! SLIDE 37