查询词典 thermal energy

Based on a mathematical model assuming that dissociation of hydrate in the porous media takes place in constant temperature boundary condition, the analytical temperature distributions in dissociated and undissociated zones were solved, and thermal efficiency and energy efficiency were derived.

将多孔介质中天然气水合物在热力作用下的分解过程看作一个移动边界问题，在求解等温边界条件下水合物地层中分解区和未分解区温度场的基础上，推导出热力法开采水合物过程中开采热效率（用于水合物分解的热量与输入热量之比）和能量效率（开采所得甲烷气体的总热值与输入能量之比）的解析表达式。

On elementary theory of non-thermal plasma, the mechanism of VOCs destruction was decided: under the action of activated particles (such as high-energy electrons, ozone, radicals, etc) produced by discharge reaction, a series of physical and chemical reaction will take place, the result is that harmful VOCs is decomposed into unharmful substance.

根据电晕放电等离子体的基本理论，得出了等离子体处理VOCs的机制：在放电产生的活性粒子(如高能电子、臭氧、自由基等)的作用下，发生一系列的物理化学反应，使有害的VOCs转化成无害的物质。

Evaluating exactly thermal economy of unit caused by heater terminal temperature difference is significant for energy saving and operation of power plant.

准确分析加热器端差对机组热经济性的影响对电厂节能与运行有很大的现实意义。

Professor Zhou IGCC makes the concept of clean energy technologies, at the same time that the technology has a high thermal efficiency, environmental performance, fuel adaptability, can be used to fuel combined cycle unit transformation.

周教授燃气轮机联合循环使得在同一时间，该技术具有热效率高的清洁能源技术的概念，环保性能，燃料适应性强，可用于燃料联合循环机组改造。

In this paper the model of the thermal conduction between the wellhole and the formation was developed after considering the effects of the heat conduction and the heat convection on the basis of the law of conservation of energy, then the temperature distribution varied with the depth of the interior and the exterior of the drilling pipe was calculated during the gas drilling, which provides the accurate basic data for exact calculation of the temperature distribution of the wellhole.

本文根据能量守恒定律，考虑热传导、热对流的影响，建立了井筒和地层之间的热传递模型，计算了气体钻井过程中管柱内外沿井深的温度分布，为气体钻井计算井筒压力分布提供了准确的基础数据。

The results show that the AlN coating has excellent absorption properties for solar energy and better photo-thermal transformation efficiency.

结果表明，应用真空离子氮化工艺制备的太阳能吸收涂层具有优良的太阳能吸收性能，这种集热管具有较好的光热转换性能。

The effect of thermal diffusion on electrical properies of SrTiO3 multi-function ceramics with coating ion was studied by application of the even design expermental method. Microstructure and element analysis were examined by SEM and Energy-Dispersive X-Ray analyss techenolegy. No new intergranuar phrase were oberved.The relationship amang electrical properties,diffusion conditions of the materials were discussed.

采用均匀设计液相涂覆热扩散方法，研究了涂覆离子，热扩散条件等对SrTiO3系陶瓷电性能的影响；用扫描电子显微镜作微观分析，X射线能谱仪作元素分析，证实钠离子的涂覆热扩散未在陶瓷晶粒之间产生新相，钠离子在晶粒内表面形成了一扩散层，讨论了扩散条件与电性能的内在联系。

Treating the anharmonic terms of potential energy as perturbations,and employing the formulas for atomic displacements and Hamiltonian in phonon occupation number representation ,the formulas for thermal expansion coefficients of crystal nano-wires are derived and the numerical calculations are carried out in this paper.

将原子间相互作用势的非谐项作为微扰，运用声子数表象中的晶格原子振动位移和晶格振动哈密顿公式，推导了纳米晶体线的热膨胀系数公式，并进行了数值计算。

The frictional heat energy was concentrated on the thermal effect layer with the thickness of 4 mm, The temperature gradient of contact surface is the highest, and decreased rapidly with the radius direction of the lining's groove. The temperature gradient and TEL's thickness increased with the increasing of the sliding speed. The temperature decreased rapidly with the radius direction and also with the increasing of center angle of the lining's groove. The sliding speed and distance are obtained under two sliding conditions when the lining fails, which supply the theoretical basis with the antislip design of friction hoist.

摩擦热量集中在热影响表面层，其厚度仅为4mm，接触表面温度梯度最大，沿绳槽径向迅速减小；温度梯度和热影响表面层厚度随相对滑速的增大而增大；衬垫温度沿径向急剧降低且随圆心角增大而减小；并得到了2种滑动工况下衬垫失效时的相对滑速和滑动距离，为摩擦提升防滑设计提供理论依据。

As one of the most important functional elements, Building envelope which can be used as function of thermal insulation, sound insulation , waterproof , fireproof etc, should react on the effective applyment of energy.

建筑围护结构是建筑物最重要的功能构件，起到保温、隔热、隔声、防火、防水等多方面的重要作用；对节能而言，它在整个建筑系统中起到有效利用能源的主要作用。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。