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Thermally Insulating Coating For Steel Drill Pipe, Matthew Mccaffrey
Thermally Insulating Coating For Steel Drill Pipe, Matthew Mccaffrey
Materials Engineering
A 5/16 in thick, 6 in x 6 in steel plate was used as a simple analog to 4 inch grade “S” steel drill pipe. Ethylene tetraflouroethylene (ETFE) applied as a powder coating was selected as the desired thermally insulating coating because of its excellent chemical resistance, maximum service temperature of 300°C, its thermal conductivity of 0.238 W/m-K, and for its ability to be applied in thicknesses of up to 80 mils. A powder primer coat of approximately 2 mils was applied using a conventional corona electrostatic powder sprayer, and then the high build topcoat was applied directly over the …
Improving R-Value In Brick Systems Using Various Pore-Forming Agents, Graham Shepherd
Improving R-Value In Brick Systems Using Various Pore-Forming Agents, Graham Shepherd
All Theses
Energy efficiency and energy savings are two topics that have continued to gain momentum over the last decade. This topic is extremely important when it comes to the construction of buildings and homes. Efforts have been ongoing to increase the insulation value of brick systems to hinder the conductive heat transfer through the material. The use of pore-forming agents (PFA’s) have been studied to increase the porosity within a ceramic system, through sacrificial burnout or place–holder method, which leave a residual, defined pore size distribution. This increase in porosity leads to better insulating capabilities and inherently lower conductivity values. In …