2026-09-19T06:51:53Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/828172022-01-13T07:53:59Zcom_1721.1_7582com_1721.1_7581col_1721.1_131023
Peter Shanahan.
Kelly, Anna C
Massachusetts Institute of Technology. Department of Civil and Environmental Engineering.
Massachusetts Institute of Technology. Department of Civil and Environmental Engineering
2013-12-06T20:45:42Z
2013-12-06T20:45:42Z
2013
2013
http://hdl.handle.net/1721.1/82817
862816548
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2013.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 54-55).
Pure Home Water (PHW) is an organization based in Tamale, Ghana that manufactures and distributes ceramic water filters. While many ceramic filter factories manufacture flowerpot-shaped filters, PHW has transitioned from the flowerpot shape, to a paraboloid shape, and finally to a hemispheric filter shape. The PHW factory conducts flow-rate testing as part of their quality control process and has documented a wide range of flow rates for the hemispheric filter as compared to the global standard. This thesis uses finite-element groundwater-flow modeling software to develop models of flow through three different ceramic filter shapes: flowerpot, paraboloid, and hemispheric filters. A sensitivity analysis was then conducted for each filter shape by simulating flow through the filter for a range of hydraulic conductivities. It was found that the hemispheric filter shape produces a higher flow rate than the flowerpot filter for a given hydraulic conductivity, and that the flow rate through the hemispheric filter is more sensitive to changes in hydraulic conductivity.
by Anna C. Kelly.
M.Eng.
55 p.
eng
Massachusetts Institute of Technology
M.I.T. theses are protected by
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http://dspace.mit.edu/handle/1721.1/7582
Civil and Environmental Engineering.
Finite element modeling of flow through ceramic pot filters
Thesis
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<Abstract>Pure Home Water (PHW) is an organization based in Tamale, Ghana that manufactures and distributes ceramic water filters. While many ceramic filter factories manufacture flowerpot-shaped filters, PHW has transitioned from the flowerpot shape, to a paraboloid shape, and finally to a hemispheric filter shape. The PHW factory conducts flow-rate testing as part of their quality control process and has documented a wide range of flow rates for the hemispheric filter as compared to the global standard. This thesis uses finite-element groundwater-flow modeling software to develop models of flow through three different ceramic filter shapes: flowerpot, paraboloid, and hemispheric filters. A sensitivity analysis was then conducted for each filter shape by simulating flow through the filter for a range of hydraulic conductivities. It was found that the hemispheric filter shape produces a higher flow rate than the flowerpot filter for a given hydraulic conductivity, and that the flow rate through the hemispheric filter is more sensitive to changes in hydraulic conductivity.</Abstract>
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