mean temperature difference是什么意思

网络释义

用法例句

Formulae for calculating the mean temperature difference of rubber to cooling medium in reclaimator and heat transfer coefficient of system have been derived from theory.

从理论上推导出脱硫挤出机中胶料与冷却介质的平均温差及系统的传热系数的计算公式，并结合准数关系式及实验对传热能力和胶料与机筒内壁的对流传热系数进行了计算。

This paper, according to heat transfer basic equation, deduces overall heat transfer coefficients in the transmit heating tube of the pure counterflow arrangement, axial temperature profile of the fluid along the length of transmit heating tube, simulates logarithmic mean temperature difference in a double tube and the effective overall heat transfer coefficient, wi.

本文根据传热基本方程推导纯逆流传热套管的总传热系数,沿传热管长度的流体轴向温度分布,模拟二重套管的对数平均温差和有效总传热系数以便于工程设计计算。

The logarithmic mean temperature difference and the integral mean temperature difference are analyzed in the optimum design of heat exchanger,the proposed approximate equations of logarithmic mean temperature difference in the literatures are discussed.

分析比较了在换热器的优化设计中,当流体的比热或传热系数随温度变化时的对数平均温差(LMTD)和积分平均温差计算方法;同时对有关文献中已提出的近似计算方法进行了讨论,指出 Chen JJJ 提出的近似公式最适用于换热器的优化设计。

Then the geometric mean temperature is applied in the regulating computation as a substitute for the logarithmic mean temperature.

本文将几何平均温差引入热网的集中调节公式进行计算,详细讨论了一、二级网联合调节的各种方案中计算参数的合理性和相对误差,指出了几何平均温差在计算中的优势。

Analysis and Application of Weighted Mean Temperature Difference for Condenser

冷凝器加权平均温差原理分析及应用

Uniform Donduction of Mean Temperature Difference In Steady Continuous Heat Transfer;

连续定态传热过程平均温差的统一推导

Mean temperature difference for countercurrent flow and cocurrent flow in steady continuous heat transfer has been deduced uniformly.

采用统一的方法对定态传热逆流和并流的平均温差进行了推导。

In the deducing process, no specific flow mode is presupposed, and the conclusion of temperature subtracting by the same side for logarithmic mean temperature difference can be easily drawn.

推导过程无需假定冷热流体的特定流向，并利于得到对数平均温差“同侧相减”的规律。

heterogeneous thermoelectric effect

非均匀温度差电效应

There was a positive correlation between protein content and average daily temperature and average sunshine time during heading to maturation, but a negative correlation existed between protein content and average diurnal variation of temperature in this period.

蛋白质含量与抽穗－成熟期间的平均日均温和平均日照时数呈正相关，与平均昼夜温差呈负相关。

Variation trends of temperature in different seasons were similar to that of annual mean temperature except that in winter.

不同季节平均气温的变化趋势与年平均气温变化趋势基本一致,仅冬季平均气温有差异。

Caloric Calculation of Monotype Evaporator and Margin Calculation of Diathermanous Average Temperature;

单效蒸发器的热量衡算与传热平均温度差计算

Days± s. d., those without s. d. indicate that only one plant reached flowering stage.

* 数字为平均±准偏差；若无标准偏差，表示该温度下仅有一植株开花。

unbias(s)ed variance

无偏方差, 均方差

difference curve

温差[差分，减差，差异]曲线

NEW ANALYSIS OF RECUPERATIVE GAS TURBINE CYCLES--WITH THE RELATIONSHIP BETWEEN HEAT TRANSFER TEMPERATURE DIFFERENCE AND PRESSURE DROP INCLUDED

燃气轮机回热循环进一步新析—考虑平均传热温差与流阻的关系

There is little difference between the two mean temperature fields, except that the slope of the isotherms appears to be somewhere greater in the right panel.

这两个平均温度场没有什么差异，除了右图等温线的坡度似乎略为大一些之外。

variation of moon

二均差 -月球运动

mean radiant temperature

平均辐射温度 平均辐射温度

The threshold value should be defined by the relationship concerning the mean and standard variances of the fire bright temperatures,whereby the missing of the fire spot can be avoided.

利用火点亮温偏离统计均值标准差的关系来确定阈值,可以避免火点的遗漏;

The results showed that instability of operation temperature and increase in space velocity and pressure would cause deterioration of the activity stability, resulting in shorter service cycle.

结果表明，操作温度的不平稳、空速及压力的提高均会造成催化剂活性稳定性变差，运转周期缩短。

bottle thermometre

瓶式温差电偶温度计