Results 31 to 40 of about 22,112,552 (178)
Experimental and Analytical Investigation of Automotive Ejector Air-Conditioning Cycles Using Low-Pressure Refrigerants [PDF]
, 2012 In recent years, ejectors have received much attention because of their ability to reduce throttling losses and increase the efficiency of stationary and mobile air-conditioning systems.
Lawrence, Neal, Elbel, Stefan
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Preliminary Study of a Novel Compact R718 Water Chiller With Integration of a Single Stage Centrifugal Compressor and Two-Phase Ejectors [PDF]
, 2012 A novel compact R718 water chiller with integration of a centrifugal compressor stage and two phase ejectors as a second stage compression device is proposed. The paper describes the investigations of this R718 refrigerating cycle. The limitations of the
Sarevski, Vasko Nikola +1 more
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Annular Supersonic Ejector Design and Optimization [PDF]
, 2012 An ejector is a device that entrains a secondary flow into a high speed stream that is generated by expansion of high pressure motive gas [1]. These ejectors can be broadly classified into central ejectors and annular ejectors.
Venkat S. Iyengar +5 more
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Multidimensional modeling of condensing two-phase ejector flow
International Journal of Refrigeration, 2012 Abstract Condensing ejectors utilize the beneficial thermodynamics of condensation to produce an exiting static pressure that can be in excess of either entering static pressure. The phase change process is driven by both turbulent mixing and interphase heat transfer. Semi-empirical models can be used in conjunction with computational fluid dynamics (
Michael Colarossi +3 more
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Case Studies in Thermal Engineering, 2023 A novel relaxation drift model (RDM) was proposed to simulate the interphase momentum non-equilibrium (slip) inside two-phase work-recovery CO2 ejectors.
Junan Long +5 more
doaj +1 more source
Numerical and Experimental Analysis of Two Phase Flow in Ejector
Energy Procedia, 2014 AbstractWhen the ejector was applied in the natural gas exploitation and sea water desalination industries, the ejector always operated on the two phase operation, because of the primary fluid or the induced fluid usually companying some water inside. The water inside the primary and induced gas will affect the ejector performance. In the present study,
Chen, Weixiong +5 more
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The hydrodynamics of two-phase flows in the injection part of a conventional ejector [PDF]
International Journal of Multiphase Flow, 2019 Abstract The characteristics of two-phase flow through a ‘conventional’ convergent-nozzle in an entrainment chamber of an ejector apparatus are described in this paper. A unique data set comprising 350 data points was generated in an air-water horizontal test-rig. Two sets of flow conditions were established, the first one including high liquid - low
D. Mifsud, Y. Cao, P.G. Verdin, L. Lao
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CFD Simulation and Experimental Study on Single Phase Dual Temperature Ejector [PDF]
, 2012 An adjust ejector was designed based on classical gas dynamical function method in single phase dual temperature ejector refrigeration system. Further more ejector optimal dimension influenced by mass flow distribution ratio, high and low evaporating ...
Zhuang, Rong +3 more
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Chemical Engineering Transactions, 2022 Ejector-based refrigeration cycles working with natural refrigerants have already gained industry attention. Replacing throttling valve with an ejector in vapour-compression cycles brings high improvement of the cycle efficiency due to the ejectors ...
Rafal Fingas +6 more
doaj +1 more source
Mechanical Engineering Journal, 2016 Conservation of energy is becoming increasingly important for the protection of the environment. Improving the efficiency of a refrigeration cycle is a critical factor to achieve this goal.
Haruyuki NISHIJIMA +2 more
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