The T-shaped groove surface with groove width of 0.3 to 1.2 mm and groove depth of 0.6 to 1.5 mm is prepared on the copper surface by using electric spark wire cutting technology, Set up a set of wall temperature measurement, bubble visualization and steady flow heating test bench. ...
Robertis ED, Cosme EHH, Neves RS, Yu Kuznetsov A, Campos APC, Landi SM, Achete CA (2012) Application of the modulated temperature differential scanning calorimetry technique for the determination of the specific heat of copper nano fluids. Appl Therm Eng 41:10–17. https://doi.org/10.1016...
Moreover, the second fast spreading of the droplet resulting from vigorous boiling on the structured surfaces enhanced the heat transfer between the droplet and the surface and also promoted the Leidenfrost temperature of the impact droplet... K Chen,RN Xu,PX Jiang - 《Langmuir》 被引量: 0发表...
boiling point,temperature at which a substance changes its state from liquid to gas. A stricter definition of boiling point is the temperature at which the liquid and vapor (gas) phases of a substance can exist in equilibrium. When heat is applied to a liquid, the temperature of the liquid...
data where heat flux is depicted as a function of wall temperature superheat or flow quality, respectively. The available data evidently cover a vast range of wall superheats including wall superheats up to about 700 K. The range of flow quality is also extensive, and extends to nearpure ...
Melting and boiling point temperatures, latent heat of evaporation, and melting heat of common substances like copper, gold, lead and more - SI units.
For this reason considerable attention has been given to improve the efficiency of wort boiling systems. Alternative wort boiling technologies, such as low pressure boiling and high temperature wort boiling, have been studied in detail during the last decades, with a focus on the reduction of ...
performanceatlow surfacesuperheats,buthighppifoamshavebetteroneatmoderateorlargesurfacesuperheatsandextendtheoperationrangeofsurface superheats.Theeffectsofotherfactorssuchaspoolliquidtemperature,foamcoverthicknessonthethermalperformancearealso discussed. Ó2008ElsevierLtd.Allrightsreserved. Keywords:Copperfoam;Pool...
32,33 The horizontal dashed arrows in Figure 1 mark the onset of boiling crisis/CHF before the uncontrolled temperature surge. We observe a similar value of CHF (q″CHF,Cu–f/Water≈1.45 MW/m2) and wall superheat (ΔTw≈16°C ± 2°C) in boiling curves for the baseline case of the...
Dissolving a solid ionic compound in liquid water creates an aqueous solution of the constituent ions. This solution will have a higher boiling point temperature than pure liquid water at the same pressure. This means that at standard pressure, an aqueous solution of an ionic compound will ...