传热温差

管壳式甲醇含成反应器的最大允许管径和最大传热温差

Maximum Tube Diameter and Temperature Difference of Heat Transfer for Tube-shell Methanol Synthesis Reactor

以氨制冷蒸发器为例，计算、分析了传热温差对费用的影响及其优化设计的意义。

The ammonia refrigeration evaporator was used as an example to calculate the effect of temperature difference of heat transfer oncost , and analyse the significance of optimal design .

目前对HAT循环中回热器的理论分析大多采用传热温差法和表征回热器特性的回热度分析的方法。

Nowadays two methods are generally adopted for the theoretical analysis of recuperators in a HAT cycle , namely , heat-transfer temperature difference method and thermal-ratio analysis method featuring the characteristics of a recuperator .

板翅式换热器由于具有传热温差小、传热效率高、结构紧凑等优点，在化工、航空、HVAC等领域已经得到广泛的应用。

Plate-fin heat exchanger ( PFHE ) has already been widely used in aerospace , chemical engineering and HVAC , etc. because of its small temperature difference , high heat transfer efficiency and compactness .

计算发现系统COP、制热量、料液蒸发量和工质流量随料液蒸发温度的升高而增大，随传热温差的增大而减小，压缩机功耗增大。

It was found that the system COP , heating capacity , evaporation capacity and the working fluid flow rate increases along with the evaporation temperature , but decreases when the temperature difference increases , however , the compressor power consumption increases .

提出了用户间传热温差修正系数法计算户间传热量。

Measurement and analysis of temperature difference correction factor for residential stairwell ;

内保温住宅的户间传热温差

Heat Transfer Temperature Differences between Houses with Inner Thermal Insulation

分户热计量供暖住宅户间传热温差

Heat Transfer Temperature Difference Between Adjacent Rooms of Individual Heat Metering Building

给定传热温差管壳程式换热器的优化设计

Optimal Design of Shell-tube Exchangers with Constant Temperature Difference

积分平均传热温差的探讨库仑校正因子近似处理的比较

INVESTIGATION ON INTEGRAL MEAN TEMPERATURE DIFFERENCE OF HEAT TRANSFER Discussion on Approximation of Coulomb Correct Factor

提出采用虚拟温度法，确定各流股匹配换热的传热温差；

The pseudo temperature method is used to determine the heat transfer approach temperature of each stream .

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

New analysis of recuperative gas turbine cycles & with the relationship between heat transfer temperature difference and pressure drop included

蓄能球的半径以及球外流体的温度对蓄能球的凝固时间有较大影响，应根据实际情况选择合适的球径以及球内外的传热温差。

The radius of the energy storage ball and the outer fluid temperature have great effect on the solidification time .

多元NARMs相变换热传热温差匹配研究（Ⅰ）&理想溶液模型

A study on matching the temperature of the multi-component non-azeotropic refrigerant mixtures with heat reserviors ( I ) & ideal solution model

为此建议了一种分段匹配方式，以减少由于传热温差引起的可用能损失。

A way of " sectional matching " is thus suggested to minimize the loss of available energy due to heat transfer temperature drop .

在冷却介质出口温度或传热温差选定的情况下，可以由第二个条件计算满足热稳定性的平均停留时间。

When the outlet coolant temperature or heat-transfer temperature difference is chosen , the acceptable mean residence time can be calculated by the second limiting condition .

基于斯特林理想制冷循环，对斯特林制冷机冷热端的传热温差进行无量纲化，分析了传热温差对斯特林制冷系数的影响关系。

Based Stirling ideal refrigeration cycle , the heat transfer temperature differences in the cold end and heat end of Stirling cooler were dealt with dimensionless method .

低温余热资源分布比较分散，传热温差小，回收比较困难，但回收价值可观。

Low temperature waste heat resources distribution is dispersive and the temperature difference is small , so recovery is more difficult . But the recovery of considerable value .

通过对汽车散热器因传热温差以及粘性流动阻力引起的不可逆火用损失进行热力学分析，推导得出了汽车散热器的火用效率计算公式。

Through the thermodynamics analysis on the irreversible exergy loss of radiator caused by temperature differences and viscous friction resistance , the calculation formula of exergy efficiency is derived .

结果表明，改进后的T形翅片管&TXY形翅片管重沸器可解决传统的重沸器传热温差大、易结垢的问题。

Results indicate that the reconstructed T-shaped finned tubes , namely TXY-shaped finned tubes , may resolve problems such as large heat-transfer temperature difference , and deposited easily in conventional reboilers .

研究了基于最小传热温差的中低温余热锅炉蒸汽参数确定问题，利用稳定流动熵方程的方法分析得到了计算理论蒸汽最高压力的关系式。

The paper studies some issues of deciding steam parameters of medium and low temperature waste heat boiler , analyses and obtains the methods of ascertaining theoretically the maximum steam pressure .

但效数增加，各效的传热温差损失的总和也将增加，致使有效的传热温差减少，同时设备投资也相应增加，15效是较为适宜的方案。

But the sum of temperature differences loss would increase , so that the effective heat transfer temperature differences , and at the same time , it will increase the equipment investment .

结果表明：添加导热材料制备的吸附剂导热性能得到了明显改善，吸附床层传热温差降低了23%～30%；

The results showed that : There is a distinct enrichment of heat conduction of adsorbents modified . Temperature difference of heat transfer for the adsorber is lowered 23 % ~ 30 % .

从固定床反应器的操作热稳定性出发，对管壳式低压甲醇合成反应器的最大允许管径和最大传热温差进行了计算。

In this paper , in view of the thermal stability of fixed-bed reactor , maximum tube diameter and temperature difference of heat transfer for low & pressure tube-shell methanol synthesis reactor were calculated .

应用该新方法和新结构于国产化的乙烯冷箱后，其冷端传热温差降低到仅为3K。

Using the new method and the new structure to manufacture the cold box of large ethylene plant , the heat transfer temperature difference in cold end of the heat exchanger was reduced to 3 K.

该冰箱采用自复叠制冷循环和非共沸混合工质R600a/R23，可以同时提供-40℃和-10℃两级蒸发温度，减小了冷藏室的传热温差。

The refrigerator , employing self-cascade refrigeration system and non-azeotropic mixture refrigerant R600a / R23 , can provide two stages of evapo - rating temperatures and can reduce the temperature difference during heat transfer in fridge compartment .

蒸发结晶是化工生产中常见的单元操作，在其加热过程中，较高的传热温差对于强化传热效率、提高设备能力极为有利。

Evaproation crystallization is a common unit operation in chemical industry production . During heating process , the higher heat transfer Δ T is extremely advantageous to enhance the heat transfer efficiency and raise the equipment capacity .

它在改善炎热环境、除湿法供冷和扩大传热温差以改善设备性能等方面都能起明显的作用。

They can be used for improving the summer thermal environment with increased air movement , play an important role in desiccant cooling and enlarge the heat transfer temperature difference of the air-conditioning equipment to obtain better performance .

分析了热电制冷器的制冷工作特性、变工况特性和变电压特性，同时分析了附加传热温差、焊缝电阻、杂散热交换、元件性能下降对热电制冷器性能的影响。

The performance data of changing working conditionings mode and changing voltage and adjunctive heat transfer temperature difference and welded resistance and stray heat exchange and element ability step-down effect on the performance data of thermoelectric refrigerator are analyzed .

设计和制作了一种带有环形通道发生器的气泡泵，实验结果表明，这种形式的气泡泵启动速度快，传热温差小，加热量损耗小，且能满足大流量的需求。

A new bubble pump with an annular channel generator was designed and built up . Experimental results show that it possesses advantages of quick start , small heat transfer temperature difference , low heat loss and large flowrate .