R22

Numerical Study of Heat Transfer and Flow Characteristics in R22 Refrigerant Replacement Evaporators

R22替代工质蒸发器的性能研究

The condensation temperature and evaporation temperature are variational in condensator and evaporator using R22/ R142b non-azeotropic mixture refrigerant.

R22/R142b非共沸混合制冷剂在冷凝器和蒸发器中其冷凝温度和蒸发温度是变化的。

In this paper, the theoretical problems using LPG ( Liquefied Petroleum Gas) as substitute for R22 been studied.

本文对液化石油气LPG作为R22替代制冷工质进行了理论研究。

Theoretical Analysis of LPG as an Alternative Refrigerant to R22

LPG替代R22的理论分析

Results: Most of the progeny virus plaques ( 70.83% of 24) had the parental genotype of 76-118 strain or R22 strain.

结果：发现24株子代病毒（70.83%）的基因组来自76-118株或R22株；

Photobiotin-labelled hantavirus cDNA probe prepared from recombinant M segment of R22 strain

光敏生物素标记流行性出血热病毒R22株M片段cDNA探针的研究

Cloning, Sequencing and Expressing of S Segment Coding Gene of Seoul Virus R22 Strain

肾综合征出血热病毒R22株核蛋白基因的克隆、序列分析及其表达

Some new alternatives to R22 have been proposed according to their cycle performance and its variation character under different working conditions.

通过对各种环境可接受工质的循环特性、变工况性能优化分析提出几种R22替代新工质。

Fast Calculation Method for the Thermodynamic Properties of R22

制冷工质R22热力性质的一种快速算法

The U-tube vertical pipe loop was inserted into the two 120m deep boreholes, and other four 100m deep drilled wells are auxiliary well for temperature testing. The cooling capacity of R22 scroll compressor is 21.8 kW at the ARI standard rating condition.

建起了具有两眼120m深埋管井和四眼100m测温辅井的垂直U型埋管土壤源热泵实验系统，热泵机组采用R22全封闭涡旋压缩机，ARI标定工况制冷量为21.8KW。

Comparison analysis of exergy between a novel mixture and R22

一种热泵循环工质与R22的可用能对比分析

The measurements of the critical parameters and the vapor-liquid coexistence curve for R22

制冷剂R22临界参数及其汽液共存曲线的测定

Development Trend of Alternatives to R22 in The Air Conditioning System

空调制冷剂R22替代品的发展态势

Fast Calculation Model of Thermodynamic and Transport Properties of R22 in Superheat Region

过热区R22热力性质及传输特性的快速计算模型

Influence of cost on system optimization of R22 alternative refrigerants

成本因素对R22替代制冷剂在系统优选中的影响

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。

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。

Comparison Study on Experimental Setup for In-tube Two-phase Heat Transfer of R22 and its Substitute

R22及其替代工质管内相变换热实验系统的比较研究

Study on the performance of a ground source heat pump using R22 and its substitutes

地源热泵用R22及替代工质热力性能研究

Molecular cloning and sequencing of the M genome segment of epidemic hemorrhagic fever virus R22 strain

流行性出血热病毒R22株M片段克隆及序列分析

Study on Thermal Physical Performance of LPG Using as the Substitute of R22

以液化石油气作为R22的替代制冷剂的热物性研究

Concluded from the test system, the best liquid filled charge ratio of R22 is 45%.

对本实验设计的热管散热器，采用R22为工作介质时最佳充液率为45%；

Dai Yunong, 28, and his colleagues sold a 2-million yuan, second-hand Robinson R22 to a Chinese individual on their website, 365feiji.com.

28岁的戴雨农（化名）和几位同事在他们的365私人飞机网上卖出了一架售价200万人民币的罗宾逊R-22二手直升机，客户是位国内的私人买家。

Performance Analysis of Natural Refrigerant Propylene as Substitute for R22

天然工质丙烯替代R22的性能分析

Numerical Simulation and Experimental Study on Heating Operation of GSHP Performance of scroll compression ground source heat pump with R22

土壤源热泵机组冬季供热性能的数值模拟与实验研究R22涡旋压缩式地源热泵机组循环性能研究

Study on New Refrigerant Mixtures as Alternatives to R22

R22的混合制冷剂替代研究

Study on performance of single screw compressor in a closed-circuit ground coupled heat pump with R22

R22地源热泵机组单螺杆压缩机循环性能研究

Comparison of performance between non-azeotropic mixtures working fluid and R22

一种非共沸循环工质与R22的性能对比实验