Topic
Heat transfer
About: Heat transfer is a research topic. Over the lifetime, 181795 publications have been published within this topic receiving 2923586 citations. The topic is also known as: heat exchange.
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TL;DR: In this paper, the authors describe a thermal heat pump consisting of a heat pipe, in which the vapor passage located for heat dissipation between the Warmeubertragungszone for heat supply and the WARMEBERTRTAGZENzone (16) changing an over its length, has the flow velocity of the vapor, first increasing and then degrading cross-section and in which in the area of increased vapor velocity another warmeubertraagung zone with heat supply or removal is the increased vapor velocities may be subsonic or supersonic range.
Abstract: The invention relates to a thermal heat pump. consisting of a heat pipe (11). in which the vapor passage located for heat dissipation between the Warmeubertragungszone for heat supply and the Warmeubertragungszone (16) changing an over its length, has the flow velocity of the vapor, first increasing and then degrading cross-section and in which in the area of the increased vapor velocity another Warmeubertragungszone with heat supply or removal is the increased vapor velocity may be subsonic or supersonic range. The cross-sectional change of the vapor channel (16) in the heat pipe (11) between the two outer heat transfer zones is advantageously carried out by a displacement body (13) effected with the particular surface contour.
292 citations
TL;DR: One hundred and seventynine Lamont Geological Observatory heat-flow measurements in the Atlantic Ocean and the Caribbean Sea are presented; their reliability is carefully estimated as mentioned in this paper, together with 197 other measurements, they are used to describe the broad regional pattern of heat flow.
Abstract: One hundred and seventy-nine Lamont Geological Observatory heat-flow measurements in the Atlantic Ocean and the Caribbean Sea are presented; their reliability is carefully estimated. Together with 197 other measurements, they are used to describe the broad regional pattern of heat flow in the Atlantic Ocean. The average heat flow over the mid-Atlantic ridge is within 20% of the heat flow of the basins, and the absence of a wide heat-flow maximum in the observed values precludes the possibility of continuous continental drift during the Ceno-zoic by the spreading-floor mechanism in the Atlantic Ocean. In contrast, the excess of heat flow measured over the East Pacific rise is consistent with the existence of large convective transfer of heat in the underlying mantle.
292 citations
TL;DR: In this paper, the convective flow and heat transfer of an incompressible viscous nanofluid past a semi-infinite vertical stretching sheet in the presence of a magnetic field are examined.
292 citations
TL;DR: In this article, an experimental and numerical investigation of transient forced convective heat transfer between the heat transfer fluid (HTF) with moderate Prandtl numbers and the tube wall, heat conduction through the wall and solid-liquid phase change of the phase change material (PCM), based on the enthalpy formulation, has been presented.
291 citations
TL;DR: In this article, the entropy generation in rectangular cavities with the same area but different aspect ratios is numerically investigated and the variation of the total entropy generation and average Bejan number for the whole cavity volume at different aspects ratios for different values of the Rayleigh number and irreversibility distribution ratio are also evaluated.
291 citations