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Two-phase flow caused by the accumulation of multi-phase concentrations of mixed refrigerant

Influence of accumulation of the real situation in the pipeline relative to temperature, pressure, mixture composition, the amount of the initial filling mixture and pipe size characteristics and other parameters are closely related. From (4) (6), can be seen: large diameter pipe (size large),christian louboutin, the cumulative amount will increase significantly; initial molar volume, caused by the accumulation of concentration will be reduced. The impact of temperature on the accumulation is obvious, if the temperature is higher, in gas mixtures, there was no accumulation occurred; If the temperature is too low, all of the liquid refrigerant, the accumulation will not cause concentration. Therefore, the concentration of the liquid caused by changes in accumulation mainly occurred in the two-phase region, and as the temperature changes, concentration changes in trend will change. Figure 2 shows the mixture under high pressure in 2200 with the temperature distribution of concentration,ropa ed hardy, other conditions are the same as described in 3.1. 2520151050 for a 5-10-15-20-25K Figure 2 MIXTURES Liquid Holdup in High Pressure Pipeline impact on the concentration can be seen from the above results, the pipe was caused by a mixture of two-phase flow concentration. Among them, the highest and the lowest boiling point boiling point group element group element concentrations of the biggest, but also reduces the concentration of high boiling point group element, low boiling point group element concentrations. Fluid temperature, flow size, angle and other parameters determine its flow characteristics, and thus determine the phase accumulation. A 12-4 conclusion discussed by the two-phase mixture of phase accumulation caused by the mixture Road, concentration problems, and examine the pipe inclination angle, temperature and other parameters on the concentration of the mixture changes. Calculated to study the flow channel direction of concentration change: flow upward from the vertical down to vertical, as the angle increases, the phase accumulation caused by the increased concentration; concentration occurred in the two-phase zone, and varies with temperature concentration lead to different trends in different components. Another expression from the model discussed in the initial mixture volume,abercrombie uk, channel dimensions on the phase accumulation caused by concentration changes. References 1GongMQ, HuQG, EC, WuJF. Developmentofacryogenicfreezerbasedonthemixturerefrigerationcycle. In: Gaystou. Proceedingsof19thInternationalCryogenicEngineer-ingConference (ICEC19). Grenoble, France: InternationalAc. ademicPublisher, 2OO2,abercrombie deutschland, 571 ~ 5742 GONG Mao-Qiong, Wu Jianfeng, Wu Qin state and so on. Single compressor mixture developed cryogenic refrigerator. See: Engineering Thermophysics Proceedings of thermodynamics and energy utilization, Beijing, 20053 GONG Mao-Qiong, Wu Jianfeng, Wu Qin State. A mixture based on throttle cryogenic refrigerator of the high vacuum vapor trap. Vacuum and low temperature, 2OO4, 10 (4): 193 ~ 1974GongMQ, WuJF, LuoEC, eta1. Researchonthechangeofmixturecompositionsinmixed - refrigerantJoule - Thomsoncryncoolers. AdvancesinCryogenicEngineering, 2OO2, 47:881 ~ 8875 GONG Mao-Jean. Horizontal tube multi-phase accumulation caused by the mixture of cryogenic concentration analysis. See: Engineering Thermophysics Proceedings of thermodynamics and energy utilization, Beijing, 2O056SalehJM. Fluidflowhandbook, McGraw-Hill, 2OO2, 159 ~ 1907BeggsI-ID, BfillJP, Astudyoftwo-phaseflowininclinedpipes, 1967, Tram. AIME, 6078PalmerCMEvaluationofinclinedpipetwo-phaseliquidholdupcorrelationsu8ingexperimentaldata, MSqhesis, UofTulsa, 19759SimulationScienceInc. ProlIUserManualandRrecesManual,ralph lauren danmark, 601S. ValenciaAve, Brea, California92621, USA, 20o2

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