汤姆逊效应

并对半导体温差发电模块的工作性能进行了分析，主要考虑了电偶臂的几何尺寸、接触效应和汤姆逊效应对其工作性能的影响。

The working performance of thermoelectric generator is analyzed mainly on the base of couple size , contact effect and Thomson effect .

随着高压气井的不断勘探与开发，由于受气体的焦耳&汤姆逊效应的影响，高压条件下天然气水合物形成条件的预测愈加重要。

Along with the increase in high pressure gas wells in exploration and development , the prediction of natural gas hydrate formation conditions is of vital importance owing to the influence of Joule Thomson effect on gas .

焦耳汤姆逊效应会导致井筒温度略微升高，但由于CO2的焦耳汤姆逊系数很小，这种影响也很小。

However temperature change caused by Joule-Thomson effect is really small due to a very small Joule-Thomson coefficient .

如何确定He的Joule-Thomson系数，是判断He负焦耳-汤姆逊效应程度的前提和基础。

Calculating the Joule-Thomson coefficients of He ⅱ is the precondition to determine the negative Joule-Thomson effect .

分析了实际气体绝热节流时的焦耳-汤姆逊效应，采用压缩因子的Gopal表达式导出焦耳-汤姆逊系数的函数表达式。

Joule-Thomson effect during adiabatic throttling of real gas is analyzed , and the function expression for Joule-Thomson coefficient is derived by using Gopal expression for compressibility factor .

伯塞活脱气体的焦耳&汤姆逊效应

Joule-Thomson Effect of Berthelot Gas

本文以伯塞活脱气体为例，定量分析了焦耳汤姆逊效应致冷（致热）的原因，导出了伯氏气体焦耳汤姆逊效应的转换温度与压强的关系。

In this paper , the reason of Joule-Thomson effect of Berthelot Gas , the relation of temperature of transformation and pressure are discussed .

推导了凝析气井筒温度分布模型，模型中考虑了焦耳-汤姆逊效应随井深的变化，以及发生相变时的相变潜热；

Wellbore temperature profile model in condensate gas well is deduced in which Joule-Thompson coefficient and quantity of heat from variety of phase state are considered .

根据能量守恒原理，既考虑天然气的焦耳&汤姆逊效应，又考虑了液体的摩擦生热，推导出了计算多相管流温降的理论公式。

According to conservation of energy , when Joule-Thomson effect on natural gas and friction heat of liquid are considered , a temperature drop formula to calculate multiphase pipeline is deduced .

汤姆逊效应对输出功率有所影响，但并不影响取得最大输出功率时，负载电阻的匹配条件，降低冷端温度有利于减小汤姆逊效应对最大输出功率的影响。

The Thomson effect has influence on output power , but there are no influence on matching condition when obtain the maximize output power . The low temperature of cold junction is advantageous to reduce the influence of Thomson effect .