r134a

Analysis of the Effect of the Mixture R32 / R134a on Environment

混合工质R32/R134a对环境的影响分析

System Simulation and Experimental Study of Auto-Cascade Refrigeration with R23 / R134a

R23/R134a自然复叠制冷循环系统模拟与实验研究

Study of the application of r134a / r600a mixture in refrigerator

混合制冷剂R134a/R600a应用于冰箱的研究

Experimentally study the performance of limitative composition mixture R32 / R134a .

对定比例组分的混合工质R32／R134a系统进行了实验研究，并与理论研究结果进行了比较。

Experimental Study on Miscibility of R134a / R600a Refrigerant and Mineral Oil Mixture

混合制冷剂R134a/R600a与矿物油互溶性的实验研究

Experimental study on a new absorption refrigeration cycle using r23 + r32 + r134a as working pair

以R23+R32+R134a/DMF为工质对的新型吸收制冷循环实验研究

Performance Study on Auto-cascade Absorption Refrigeration Cycle Using R32 + R134a / DMF as Working Pairs

以R32+R134a/DMF作为工质的自行复叠吸收制冷循环性能分析

Safety regulations for working on air-conditioned vehicles and dealing with refrigerant r134a , safety regulations for extraction and filling systems .

对配备空调的车辆进行操作及处理制冷剂r134a的安全规定，抽取和加注系统的安全规定。

By comparison with using pure R22 , the mixture refrigerant R32 / R134a has better capacity adjustment performances .

结果表明，混合工质P32/R134a具有较好的容量调节特性。

The Compressor Calorimeter of Mixture fluid R32 / R134a

混合工质R32/R134a的压缩机性能试验

In this thesis , the auto-cascade refrigeration cycle with R23 / R134a mixed refrigerant is studied and analyzed both in theory model and experiment .

以上优势使得自然复叠系统具有研究和开发的价值。在R23/R134a混合工质物性的基础上，本文编写自然复叠模拟程序，分析输入参数对自然复叠内循环的影响。

An experiment apparatus for this novel capacity control heat pump is built up . The operation performance of the system is investigated using R32 / R134a mixtures as refrigerant in the system .

搭建了新型变浓度容量调节热泵系统实验台，研究了采用R32／R134a为工质时变浓度热泵系统的实际运行效果。

In this paper , a three-stage auto-cascade refrigeration cycle is developed with R134a / R23 / R14 and the experimental system is setup .

本文提出一种三级自动复叠的制冷系统，搭建了相应的研究装置，采用R134a/R23/R14混合制冷剂，对试验装置和混合制冷剂组分的优化试验。

According to the result from this calculation , an enthalpy-composition diagram was plotted , which supplies important data for thermophysical properties and cycle analysis of R134a / R23 .

根据计算得到的R134a/R23热物性数据，绘制了工程上广泛使用的二元混合工质的焓-浓度图，为基于该混合工质的循环计算，提供了重要的基础数据。

Establishes a steady-state simulation model . Obtains the performance curves with the change of working conditions for the systems using R22 and R32 / R134a as refrigerants respectively by simulation .

建立了空气源热泵的稳态仿真模型，得出了R22和其替代工质R32/R134a系统循环性能随工况的变化曲线。

This paper presents a new auto-refrigerating cascade cycle that employs a rectifying column . A thermodynamic analysis of the cycle is conducted with R134a / R23 as working fluid .

本文提出了一种新的具有精馏装置的自动复叠式制冷循环，并以R134a／R23为制冷剂。

Enthalpy-composition Diagram Plotting for R134a / R23

混合工质R134a/R23焓-浓度图的绘制

According to the results , the condensation heat transfer coefficient of Turbo-DWT is 42 % more than that of Turbo-A , and pressure drop about 65 % ( R134a ) .

从实验数据可知，新管型Turbo-DWT的冷凝传热系数高于Turbo-A约42%，且压降低于Turbo-A约65%（R134a）。

The auto-cascade diffusion absorption refrigeration cycle which employed DMF as the absorbent , and R134a & R23 as the refrigerant owns the advantages of the traditional one , but also the ability to produce cooling capacity at even lower temperature .

采用DMF为吸收剂、R134a/R23作为制冷剂的自行复叠扩散吸收制冷循环，不仅具有传统扩散吸收制冷的优点，还可以制取更低温度的冷量。

R134a / R23 is a new refrigerant mixture and friendly to environment . In this research , the vapor-liquid equilibrium , enthalpy , and entropy of this mixture were calculated based on Peng-Robinson ( PR ) equation of state ( EOS ) .

使用PR（Peng-Robinson）方程对混合工质R134a/R23进行了气液相平衡的预测和焓、熵的计算。

Theoretical cycle performances of mixture refrigerant R32 / R134a and pure R22 are analyzed . The experimental study on a novel air source heat pump system with altering concentration of mixture refrigerant is carried out by using pure R22 and mixture R32 / R134a respectively .

本文分析了不同浓度混合工质R32／R134a和纯质R22理论循环性能，应用新型变浓度实验热泵装置测定了混合工质R32／R134a的变浓度循环特性，并与纯质R22进行了比较。