r22

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

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

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

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

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

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

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

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

Performance Analysis of Natural Refrigerant Propylene as Substitute for R22

天然工质丙烯替代R22的性能分析

Theoretical Analysis of LPG as an Alternative Refrigerant to R22

LPG替代R22的理论分析

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%；

Study on New Refrigerant Mixtures as Alternatives to R22

R22的混合制冷剂替代研究

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

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 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

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

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。

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

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

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。

Flow boiling heat transfer characteristics in horizontal smooth tubes and internal grooved tubes of R22 are experimentally investigated .

本文对氟利昂22在水平光滑管和内螺纹管内的流动沸腾换热特性进行了实验研究。

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

The governor I 'm developing in mainly based on the control box and actuator motor of the well known R22 helicopter .

总督我发展，主要是基于控制箱及致动器电机著名的R22的直升机。

The application of vertical U-type laying pipe ground source heat pump technology Performance of scroll compression ground source heat pump with R22

竖直U型埋管地源热泵技术的应用R22涡旋压缩式地源热泵机组循环性能研究

The device adopted a R22 double-stage compression and refrigeration system . Low temperature box could bear large loads during the experiments .

试验装置采用R22的双级压缩制冷系统，低温箱的结构可承受试验时的大荷载。

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

R22 is the main present refrigerants used in cascade refrigeration cycle , which are controlled materials and need to be replaced .

摘要目前复叠式制冷循环中采用的R22制冷剂属于受控物质，需要寻求新的替代制冷剂。

Meanwhile , the performance of natural refrigerant CO2 was studied and compared with that of traditional refrigerant R22 in the same condition ;

同时对自然工质CO2与传统工质R22在相同工况下的特性进行了对比分析；

With the increase of blowing agent R22 amount , the density of foam was decreased , and its tensile strength was reduced .

发泡剂R22用量增加，泡沫密度减小，拉伸强度降低。

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。