Results 11 to 20 of about 22,112,552 (178)
Optimization of Two-Phase Ejector Mixing Chamber Length under Varied Liquid Volume Fraction [PDF]
Entropy, 2022 The ejector performance varies with the mixing chamber length which is largely dependent on the fluid liquid volume fraction at the inlet. In this study, numerical simulations are conducted to optimize two mixing chamber lengths of a two-phase ejector ...
Jia Yan +3 more
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Preliminary Design of the Two-Phase Ejector under Constant Area Mixing Assumption for 5 kW Experimental System [PDF]
E3S Web of Conferences, 2019 Ejector expansion refrigeration cycle is the modification of the vapour compression refrigeration cycle with the implementation of a two-phase ejector and a vapour-liquid separator to improve the cycle performance.
Atmaca Ayşe Uğurcan +2 more
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An Object-Oriented R744 Two-Phase Ejector Reduced-Order Model for Dynamic Simulations
Energies, 2019 The object-oriented two-phase ejector hybrid reduced-order model (ROM) was developed for dynamic simulation of the R744 refrigeration system. OpenModelica software was used to evaluate the system’s performance. Moreover, the hybrid ROM results were
Michal Haida +6 more
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Energies, 2023 In this paper, an experimental investigation of the performance improvement of a heat pump equipped with a two-phase ejector, called an “ejector–expansion heat pump (EEHP)”, is proposed. The system performance of the EEHP is compared with that of a vapor-
Wichean Singmai +2 more
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Experimental Assessment of the Efficiency of Two-Phase Ejector Components for Isobutane
Sustainability, 2022 Two-phase ejectors as well as single phase ejectors can be applied in many branches of industry: refrigeration and heat pump systems, chemical engineering, food processing, and others. Due to the complicated nature of the process of momentum transfer in two-phase ejectors, their design procedure based on the accurate theoretical prediction of the ...
Kamil Śmierciew +5 more
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Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2017 A two-phase liquid-gas ejector with a supersonic nozzle is described in the article. The results of numerical modeling of the processes occurring in it and forming a two-phase jet are presented. The structure of a two-phase flow formed by the ejector and
I. A. Lepeshinsky +2 more
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Mathematics, 2022 This paper establishes a mathematic model of a CO2 two-phase ejector to investigate flow distribution in the components of a mixing chamber and diffuser.
Lixing Zheng +4 more
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Case Studies in Thermal EngineeringThis study investigates the effects of varying needle block degree (blockage area ratio of the primary nozzle throat) and dryness fraction (the ratio of gas mass to mass of two-phase mixture) within the primary and secondary flow on the performance of a ...
Meiqi Qin, Jia Yan, Ruixin Li
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Thermodynamic analysis of the two-phase ejector air-conditioning system for buses
Applied Thermal Engineering, 2015 Air-conditioning compressors of the buses are usually operated with the power taken from the engine of the buses. Therefore, an improvement in the air-conditioning system will reduce the fuel consumption of the buses. The improvement in the coefficient of performance (COP) of the air-conditioning system can be provided by using the two-phase ejector as
Şaban Ünal, Tuncay Yilmaz
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Analysis of the Influence of Heat Transfer in the Nozzle Divergence Section of Transcritical CO2 Two-phase Ejector [PDF]
Zhileng xuebaoThe motive flow state in a transcritical CO2 ejector significantly affects its performance. The heat transfer on the wall of the motive nozzle can change the motive flow state, and its effect on the performance of the ejector should be studied.
Feng Yibo, He Yang, Deng Jianqiang
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