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equation of heat conduction的中文,翻译,解释,例句

equation of heat conduction

equation of heat conduction的基本解释
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热传导方程

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On the basis of the conservation equation of continuous medium and in combination with mechanics of fluid through porous media and the heat transfer theory in porous media, conservation equations in porous media (continuous equation, momentum equation and energy equation ) are derived, When constructing the downhole temperature model, heat transfer in a wellbore is considered as the heat transfer in a vertical tube, the flow in a wellbore considered as sufficiently parallel flow, heat transfer in injection zones considered as heat conduction and convection in porous media, the flow in injection zones considered as flow through porous media, heat transfer in adjacent rocks considered as heat conduction in porous media.

在建立井下温度场模型时,把井筒的传热看作是竖直圆管中传热问题,把井筒的流动看作是充分发展的层流流动;把注入层中的传热看作是多孔介质中导热和对流的传热问题,把注入层中的流动看作是渗流;把围岩中的传热看作是多孔介质中导热问题。

Based on a computing model of floor heating residences, indoor thermal environment and heat distribution under the effect of heat charge/discharge, operation control and solar radiation has been concluded. Concept and formula of equivalent heat supply has been put forward which indicate that actual heat supply will be equal to the sum of design heat supply and equivalent heat supply. Recommend coefficient has been given taken Dalian as an example. Computed according to the new method, design heat supply can be reduced to 37% in cloudy day and 43.3% in sunny day, energy saving effect is very obvious. In Tromb wall solar house, effect of concrete wall on indoor temperature swing and attenuation of temperature wave is very obvious. While the outdoor air-temperature swing exceeds 10℃, indoor air-temperature swing belows 3℃. In the experiment, maximal difference in temperature between inner surface and outer surface of the 300mm wall exceeded 10℃. Heat storage and collector efficiency varies adversely according to solar radiation. Factors such as thickness, material, absorptance of the wall and permeation of the glass cover all have big influence on heat storage and collector efficiency. There exsisted an optimal thickness of the wall, which can make the best of heat storage and collector efficiency. Most of the heat stored in conventional Trombe wall during the daytime has been lost to the outside at night without heat preservation. Heat preservation on the outside surface of the wall has effectively improved heat release performance of the wall at night, heat supply to the room has increased too.

通过建立的地板采暖系统动态热性能分析模型,得出了在蓄放热特性、运行方式和太阳辐射等因素耦合作用下的室内热环境及热量分配比例,提出了等效供热量的概念及计算公式,指出实际所需供热量应等于设计供热量加上等效供热量,并以大连为例,给出了等效供热量的修正系数,以新方法计算,阴天可减少设计供热量37%,晴天最大可以减少设计供热量43.3%,节能效果显著;集热蓄热墙式太阳房中,混凝土蓄热墙的室温均一化效果和对温度波的削减作用非常明显,当室外温度波动最大幅度超过10℃时,室温波幅不超过3℃,实验中300mm厚墙体内外表面温差超过10℃;墙体蓄热效率与集热效率随太阳辐射照度的变化呈相反的变化趋势;墙体厚度、材料、表面吸收率以及盖板透过率等因素对集热和蓄热效率均有较大的影响,存在一个最佳的墙体厚度值,使得墙体集热和蓄热综合性能最优;传统的蓄热墙夜间没有外保温,辐射散热损失很大,研究表明墙体外保温方式明显改善了蓄热墙夜间的散热性能,增加了向室内的供热量。

Water inside vacuum heat- collection tubes; since the hot medium inside vacuum tubes floats up and cold one goes down due to respective specific gravity, hot and cold mediums convections up and down to cause the heat conduction, furthermore transfer the heat to the related working medium in the heat tubes, the working medium sorbs the potential heat and becomes steam to rise up to the condensing section from the tube heat evaporating section; it emits the heat in condensing section to change again into liquid working medium; it flows back to evaporating section under the gravity action, the emitted heat is transferred into the water inside water tank or tube group by means of the heat-conduction through heat tubes condensing section; it makes the cold water in water tank into hot water in the repeated way.

阳光透过全玻璃真空集热管的外玻璃,照射到涂覆在内玻璃管外表面的选择性吸收涂层上,涂层将太阳的辐射能吸收并转化为热能,通过内玻璃管壁导热,传递给真空集热管内其液态传热介质,由于真空集热管内热的介质因比重小而上浮,冷的介质因比重大而下沉,冷热介质上下对流传热和导热,再通过热管的金属壁导热,将热量传递给热管内其相变工质,工质吸收汽化潜热而变成蒸汽,由热管蒸发段上升到冷凝段,在冷凝段放热冷凝,又变成液态工质,在重力作用下流回蒸发段,所放出的热量通过热管冷凝段金属管壁导热,传递给水箱或联集管内的冷水,周而复始,于是便将水箱内的冷水全部加热成热水。

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equation of heat conduction:热传导方程

equation of continuity 连续方程 | equation of heat conduction 热传导方程 | equation of higher order 高阶方程式