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Published in Les Goring, Residential Surveying Matters and Building Terminology, 2023
The process involves inserting and locating a long, interlaced-felt-material tube (that has been impregnated with a thermosetting resin), which is pulled/dragged through the pipe between one manhole and the other. The tube is then inflated by using a calibration hose. When the liner is cured (hardened) in situ, it forms a seamless, jointless repair to the pipe, effectively creating a new pipe within an existing pipeline. Finally, the entry and exit ends of a relined drain are advised by RSM to be tidied up by being sealed with epoxy putty.
V-Type solar still integrated with hybrid solar concentrator
Published in Cogent Engineering, 2022
A. Amrith Kiran, P. Veena Sivashankar, P.U. Suneesh, D.C. Denkenberger
The HX (Figure 4) works as a receiver to the solar concentrator and is used to transfer heat from the solar concentrator to the saline/brackish water flowing through it. The HX can be oriented in different ways using screws and nuts in the two joints of the stand. It is made using condenser coils from a refrigerator salvaged from junkyard. The condenser coil is made from Bundy tube, which is a type of double-walled low-carbon steel tube manufactured by rolling a copper-coated steel strip through 720° and resistance brazing the overlapped seam in a process called Bundy welding. The “U” shaped ends of condenser coils are sawed off, stacked on top of each other and are interconnected. All surfaces except the bottom are coated with epoxy putty to minimize thermal loss while the bottom part is painted black for maximum radiation absorbance. The HX is 0.09 m long, 0.05 m wide, 0.04 m thick and has an inlet and an outlet.
SBR-latex modified cementitious composite coatings for concrete rehabilitation and assessment of performance measure
Published in European Journal of Environmental and Civil Engineering, 2022
Ketankumar G. Chitte, Ravindra G. Puri, Dhiraj S. Mahajan, Sachin Rathi, Jitendra S. Narkhede
This study set out to evaluate a new test method for measuring water penetration by Invert funnel method; to address limitations of modified Rilem tube. This might be basis inherent invariability in the modified Rilem test which can be minimized using the non-standard funnel test method which covers a large area, In this method readily available defect-free plastic funnel was used having a total height of 100 mm, base diameter of the cone was 115 mm and height of cone was 60 mm. Funnels were fixed over the coated substrate before 24 h using epoxy putty to avoid misleading results due to the leakages. An average of 3 readings was taken into consideration (Specification for elastomeric wall coating SS 500, 500, 2015).
Analysis of variations in annual energy production based on types of suction side erosion at the blade tip of a wind turbine using numerical simulation
Published in International Journal of Green Energy, 2023
Keunseok Lee, Heejeon Im, Jeonghwan Boo, Bumsuk Kim
The erosion shapes were obtained as follows. First, the mold with epoxy putty was firmly pressed on the blade’s leading edge for 1–2 min and removed. Next, silicone was poured into the epoxy mold and dried for 5–10 min to obtain the shape. The erosion depth was measured from the obtained shape. For the erosion patterns, projection paper was fixed on the leading edge of the eroded blade, and the boundary line of the erosion was drawn. The obtained erosion pattern was converted to a set of point data for modeling.