热电转换

由于声子散射增强，经过修饰的si纳米线复合结构的热导率可以进一步降低，从而获得更大的热电转换效率。

Due to increased phonon scattering , the Si nanowire nanocomposites with modification are expected to achieve lower thermal conductivity and larger thermoelectric conversion efficiency .

如何提高其实际热电转换效率更接近理论效率是AMTEC关键技术难点之一，而热辐射损失是影响AMTEC效率的主要因素之一。

How to improve thermoelectric conversion efficiency of AMTEC is one of the key technical problems , and the impact of thermal radiation loss is one of the main factors of AMTEC efficiency .

利用热电转换方法得到LED芯片的结温变化。

An electrical-thermal conversion method is used to measure the junction temperature of the high power LED .

SiGe合金材料热电转换效应的应用和研究进展

The Application and Progress of SiGe Alloys Materials in Thermoelectric Generation

在一定的温差下，可将热能转换为电能的材料称为温差电材料。其热电转换效率的大小主要取决于材料的性能，通常用无量纲因子ZT来表示。

Substance converting heat into electric energy under certain range of temperature is called thermoelectric material , of which converting efficiency is mainly determined by its own intrinsic properties and evaluated by ZT of dimensionless factor .

计算结果表明，存在一个电流密度的阈值，当电极电流密度大于此值时，无论是输出电压、电极功率密度还是热电转换效率，K-AMTEC都明显优于Na-AMTEC。

It is indicated that K-AMTEC is better than Na-AMTEC obviously in output voltage , electrode power density and thermal-to-electric converting efficiency when electrode electric current density is above some eigen-value .

本文通过建立平板形及圆柱形动力芯片的传热模型并求出理论解，分析了RTG-chip同位素热源的尺度及结构对其温度和热电转换效率的影响规律。

In this paper , heat transfer models for both plane and cylindrical shape RTG-chip were established and their analytical solutions were obtained . Effects of the size and structure of isotope heat source in RTG-chip on its temperature and thermoelectric conversion efficiency were investigated .

基于甲烷燃烧的热电转换特性实验研究

Experimental study on the thermoelectric conversion characteristics based on Methane Combustion

硅锗合金光学性质及热电转换性能的研究

The Study of Photics Character and Thermoelectrical Properties of Silicon-Germanium Alloys

一种温差电单偶热电转换效率的测试方法

A test method for heat to electricity conversion efficiency of thermoelectric unicouple

具有热电转换效率高、无运动部件、低维护等优点。

It is characterized by high conversion efficiency , no moving parts and low maintenance requirements .

高频同轴热电转换标准

HF Coaxial Thermal Transfer Standard

在整个热电转换过程中，除了发电机以外，没有任何运动的机械部件。

Throughout the whole conversion process , there is not any moving mechanical part except for the linear generator .

热电转换技术是当前研究的热点课题之一，涉及能源、热电学、材料学等领域。

The thermoelectric generation technology is a hot project , which relates to the fields of energy source , thermoelectricity and material science .

测试结果表明：由设计的元件制作出的分段温差电单偶的热电转换效率达到了7.31%。

The test results have shown that the thermoelectric conversion efficiency of segmented thermoelectric unicouple made by designed element reached to 7.31 % .

通过填充和掺杂等手段，能够有效地提高该类材料的功率因子，并降低其热导率，从而提高材料的热电转换效率。

By means of filling and doping , we could boost the power factor and reduce the thermal conductance of this kind of material .

由于分段温差电元件能够在较宽的温度范围内很大程度地提高热电转换效率，因此，在世界范围内受到广泛的关注。

The segmented thermoelectric element has been paid much attention in the world because of its high thermoelectric conversion efficiency in wide temperature scope .

热面温度500℃，冷面温度50℃时，碲化铅/碲化铋级联温差电单偶的最大热电转换效率测试结果为8.45%。

The maximum conversion efficiency of PbTe / BiTe cascade unicouple is 8.45 % , when the cold and hot side temperature is 50 ℃ and 500 ℃, respectively .

本文主要针对碟式太阳能热动力发电系统中的跟踪控制系统、热电转换装置、电力变换装置和交流稳压装置做了一些相应的研究和应用工作。

This thesis does some corresponding researches and application works for the Tracking-Control System , the Thermoelectric Converter , the Electric Power Transducer and the AC Stabilizer of the system .

热辐射及热辐射光谱特性控制在航天热控技术、热电转换技术、太阳能利用、选择性热辐射器以及激光技术等诸多领域有重要的应用背景。

Thermal radiation and thermal radiative spectral control are playing an important role in many applications , such as wavelength-selective thermal radiator , thermal control in space , solar collectors and laser technology .

当冷面温度固定在50℃，作者测试了一对碲化铋温差电单偶热电转换效率随热面温度变化的规律，结果显示其热电转换效率呈近似线性增长。

Fixed the cold side temperature at 50 ℃, it was tested the dependence of maximum efficiency of a BiTe unicouple on hot side temperature . Test results show that the maximum conversion efficiency increases linearly .

近年来，汽车尾气余热热电转换技术的研究在世界范围内迅速升温，是汽车节能减排的前瞻性重大技术。

In recent years , there has been an increasing focus on the research of thermoelectric generator technology based on automobile exhaust heat , which is a prospective major technology on energy saving and emission reduction of automobile .

20世纪70年代，国外学者提出了采用热电转换的方式将发动机的排气余热直接转换成电能，供给车辆使用，提高汽车能源利用率。

Since 1970s , foreign scholars put forward a theory that vehicle engine exhaust gas energy can be reclaimed by semiconductor thermoelectric generator . It can translate heat into electricity directly , which can be used in vehicle and improve energy efficiency .

热电转换装置尽管目前转换效率比较低，但因为具有结构紧凑、没有移动部件、工作无噪声、使用寿命长、安全不失效、易于自动检修、无污染等优点，从而激起了人们的研究热情。

In spite of the low transition efficiency , the thermoelectric transition equipments have a lot of characteristics such as no moving parts , pollution and noise , long life span and safety , which stirs people to research them with great enthusiasm .

半导体温差电材料的塞贝克系数可以是金属的几倍，因此温差电热流量计的灵敏度高，热电转换效率的测量可以获得较高精度。

Because the value of Seebeck Coefficient of the semiconductor thermoelectric materials could be many times of the metals ' , the thermal power meter has high sensitivity , so that higher test precision could be gained for conversion efficiency of thermoelectric unicouple .

我们发现当两端铁磁电极处于平行磁化结构时，如果自旋向下电子对应的有效点间耦合以及点与电极耦合比较小，自旋向下共振能级附近的热电转换效率就会很大地增强。

It is found that in the parallel configuration , the thermoelectric efficiency can reach a considerable value around the spin-down resonance levels when the effective interdot coupling and the tunnel coupling between the QDs and the leads for the spin-down electrons are small .

新型核动力推进装置由微小型快中子堆、碱金属热电直接转换元件、蒸汽引射式喷水推进器、超导磁流体推进器等主要设备组成。

This new type of propulsion system is consisted of minitype fast reactor , alkali-metal thermal-to-electric conversion ( AMTEC ) device , steam-guide spray-water thruster , superconducting magneto-hydrodynamic ( MHD ) propulsor and so on .

高温固液相变蓄热器可以与碱金属热电直接转换技术相结合构成蓄热式热电直接转换装置，它可用于水下潜器和航天器上作为动力源使用。

The high temperature solid-liquid phase change thermal energy storage container can combine with alkali metal thermal-electricity direct switch technology and form regenerative alkali metal thermal-electricity direct switch device , it can be used in the diving device under water and serves as motive force source on the spacecraft .

因此，提高热电材料的转换效率，是实现热电材料规模化使用的关键。

Therefore , in order to utilize the thermoelectric material on a large scale , it is key to improve its conversion efficiency .

但是目前研究的热电材料的转换效率较低，极大地限制了其在国民经济中的广泛应用。

However , the thermoelectric material at present has a low conversion efficiency , which confines it greatly from being used extensively in the national economy in turn .