Punchless Piecing Process of Aluminum Tube Wall by Impulsive Water Pressure Piecing of the aluminum alloy A6063-T6 tube was attempted with the help of impulsive water pressure in the tube caused by the impact of drop-hammer. The av... M Yamashita,K Sugiura,M Nikawa - 《Materials Transaction...
The predicted heat transfer near the receiver holes was also shown to be sensitive to near-wall turbulence modelling. Overall, the results are encouraging for the careful use of CFD in pre-swirl-system design. 展开 DOI: 10.1115/GT2010-22964 ...
whereTbis the temperature in the borehole wall. The unit of the ground thermal resistanceRgis K/(W/m). The other important factor for the design of borehole systems is the thermal resistance between the heat carrier fluid in the borehole flow channels and the borehole wall. The fluid-to...
Wall to wall heat transfer occurs at walls AB and AC due to linear heating boundary condition in all the cases. Although the distributions of fluid flow and heat flow are qualitatively similar for φ=45° and 60°, the intensity of fluid flow and heat flow decreases as φ increases. ...
Enhanced Internal Heat Transfer on the Tip-Wall in a Rectangular Two-Pass Channel (AR = 1:2) by Pin-Fin Arrays Numerical Heat Transfer, Part A: Applications . 2009G. N. Xie, B. Sunden, L. K. Wang, and E. Utriainen, Enhanced Internal Heat Transfer on the ... G Xie,B Sundén,...
As the fluid A flows down, it adheres to the inner wall of the pipes 13 to maintain a high heating efficiency and ultimately reaches the outlet 19. On the other hand, the heating fluid B enters from an inlet 21 to rise through an annular passage 11 to be reversed by the header 15 ...
and SiNPs. Although the degree of the enhancement and local characteristics differ according to the manipulated structure types and their characteristic lengths, the heat trans- fer in the wall jet region can be improved drastically by nanostructure implementation as shown in Fig. 5a and b....
Heat pipes – construction and principles of operation A conventional wicked HP consists of a sealed container, in which a wick is placed on the inner radius of the pipe wall, as shown in Fig. 1. The wick acts as a capillary pump, which returns the condensate to the evaporator section of...
19 October 2015 accepted: 21 March 2016 Published: 07 April 2016 The roles of thermal insulation and heat storage in the energy performance of the wall materials: a simulation study Linshuang Long & Hong Ye A high-performance envelope is the prerequisite and foundation to a zero energy bu...
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