The solar energy collector tube (9) has a double-wall hollow vacuum tube (1), of a material with clear glass transparency, containing a flow zone (2) with an embedded hollow and cylindrical braiding (3) to absorb the solar rays at raised... R Friedrich 被引量: 2发表: 2001年 DOUBLE ...
This paper presents a new finite element used to model heat exchangers and implemented in SYSTUS+. The fluid is represented by a set of one-dimensional elements, and the wall of the pipe, in which the fluid flows, by 2D elements. One ele... JM Bergheau,S Lalot 被引量: 0发表: 1998...
Conductance (G) and electroosmotic mobility (mu(EOF)) can be used to determine T(Mean) and T(Wall), respectively. Extrapolation of curves of mu(EOF) versus power per unit length (P/L) at different temperatures was used to calibrate the variation of mu(EOF) with temperature (T), free ...
Buono MJ, Wall AJ. Effect of hypohydration on core temperature during exercise in temperate and hot environments. Pflugers Arch. 2000;440(3):476–80. Article CAS PubMed Google Scholar Notley SR, Flouris AD, Kenny GP. Occupational heat stress management: does one size fit all? Am J Ind...
Each stage of the proposed micropump comprises sump and pump regions having opposing electric field directions. The various design parameters of the micropump includes the height of the pump and sump (h), number of stages (n), channel width (w), thickness of the channel wall or fin (r), ...
PURPOSE:To make the unit compact and improve its heat exchanging efficiency by disposing a second shell to form an annular passage around a first shell, and providing flow reversing headers which make the interior of the first shell communicate with heat transmission pipes, and the annular passage...
Due to finite differences between the fluid temperature and the heat storage unit under mechanical equilibrium, the exergy destruction in LHS is smaller compared with that of the sensible heat storage (Rosen and Dincer, 2003). The phase changing time and the enhancement of the overall efficiency ...
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In other words, the heat transfer across the tube wall and then further to the water is usually embedded. Thus, Equation (1) might be rewritten for heat transfer from the oscillatory gas to the tube wall as follows . As = (Tm Q − Ts) hi (4) where Ts is the temperature of the...
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