Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 16 of 16 for “"Iron Pipe"”.
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Distributed Sensing for Monitoring Cast Iron Pipe Behaviour
… and field behaviour of small diameter cast iron water pipes. Exhumed pipes were provided by the Cities of Kingston, Hamilton, and Toronto in Canada. Four of these 150 mm diameter pipe specimens, with a length of 2.2 m, were instrumented with distributed fibre optic sensors (three …
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Impact of Piping Materials on Water Quality in Tegucigalpa, Honduras
The possible effects of pipe materials on drinking water quality have been analyzed in the distribution system of the water treatment plant of "La La Concepciónâ " in Tegucigalpa, Honduras. "La La Concepciónâ " is a surface water reservoir experiencing biogeochemical cycling of manganese. Black …
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In-Situ Remediation of Small Leaks in Water Pipes: Impacts of Water Chemistry, Physical Parameters and the Presence of Particles
… achieved by harnessing the ability of water or pipe to repair leaks via clogging, could potentially reduce leak rates and extend the lifetime of existing infrastructure at relatively low cost and inconvenience. Physical clogging, precipitation and metallic corrosion were identified as major …
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The determination of heat transfer characteristics for the improved design of a heat exchanger for a moving bed system composed of air and activated carbon
… carbon moving through a three-quarter inch black iron pipe 36 inches long with an effective heating area of 0.65 square foot. The results of this investigation showed that the desorption of moisture in the activated carbon caused an unexpected break in the thermal conductivity curves between 200 …
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Heat transfer in heating and cooling of viscous liquids
… the heat transfer of viscous liquids flowing in pipes was made. It was found that there was a marked lack of information on this subject. A double-pipe heat exchanger was constructed from standard iron pipe and copper tubing. The apparatus includes a circulation system so that the liquid could be …
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Water Quality Factors Influencing Iron and Lead Corrosion in Drinking Water
… facing drinking water utilities. Corrosion of iron pipes can lead to economic losses and customer complaints, while lead corrosion poses a serious health risk. This work first synthesizes nearly 100 years of iron corrosion research to provide the water industry with an updated understanding of …
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Relative Effects of Water Chemistry on Aspects of Iron Corrosion
… all publicly and privately owned potable water pipes in the U.S. is on the order of $2.4 trillion dollars, and costs associated with deteriorating iron pipes is billions of dollars per year. Problems arising from iron corrosion include reduced lifetime of the material, scale buildup and energy …
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Heat transfer and scale resisting properties of silicone resins
… sections of 1-in. Nominal diameter standard iron pipe into whose surface were installed six copper-constantan thermocouples for measuring the temperature of the tube well. Silicone resins DC 804 and DC 802 were used for coating the tubes. Silicone resin DC 804 was cured for 16 hours under …
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Role of Chloride in Galvanized Iron Plumbing Corrosion and the Use of Fingerprinting Methods to Identify Water Lead Sources
… this change could be problematic for galvanized iron pipe (GIP) installed in consumers' homes and buildings. The higher levels of chloride might increase the rate of galvanic corrosion between the sacrificial zinc coating and the underlying iron (steel) pipe. There are also concerns that the iron …
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Nitrification in premise plumbing and its effect on corrosion and water quality degradation
… biofilms. But with nitrification and in pipe materials that are relatively non-reactive with chlorine, chloramine was much less persistent and less effective than chlorine. In materials that are reactive with chlorine such as iron pipes, the relative efficacy of chloramine versus chlorine …
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The fluidized retorting of oil shale from the Mahogany ledge of the Green River formation of Colorado
… flanged 5-foot section of 8-inch diameter black iron pipe with eight 1250-watt heaters placed in the heating section at 6-inch intervals along the vertical axis. Additional heaters were provided on the gas transfer line to reduce the heating time. The condensers were simple tube-in-shell heat …
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GVWD corrosion control initiative, phase II: inhibitor chemical testing at Seymour Dam
… reducing lead levels at the tap, reducing iron pipe deterioration in some of the older municipal systems, and to determine the impact of inhibitors on re-growth potential. A literature search, and extensive discussion with chemical suppliers determined that zinc orthophosphate and Type N …
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Impact of Premise Plumbing Conditions, Materials, Corrosion Control, Temperature, and Water Heater System Design on the Growth of Opportunistic Pathogens in Drinking Water
… Review of the Propensity of Premise Plumbing Pipe Materials to Enhance or Diminish the Growth of Legionella and Other Opportunistic Pathogens." It examines the complex environments found in premise systems, focusing primarily on the role of pipe materials. The effects of metallic (copper, …