Results 21 to 30 of about 910 (249)
Mechanical Engineering Journal, 2016 Recently, with the appearance of the two-phase flow ejector in refrigeration air conditioning and heat pump systems, the efficiency of the cycle has largely been improved in comparison with that of conventional cooling and heating systems.
Yosuke KAWAMURA, Masafumi NAKAGAWA
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Performance of Two Phase Ejector in Refrigeration Cycle.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1998 The dissipated effective kinetic energy in the refrigeration cycle can be recovered by using a two phase ejector. The performance of the two phase ejector depends on the mixing characteristics of the droplets with the large inertia and the relatively light gas. It is important for designing the two phase ejector to know characteristics of the two phase
NAKAGAWA, Masafumi +2 more
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Nihon Kikai Gakkai ronbunshu, 2017 Recently, the refrigeration air conditioner and heat pump system using the two-phase flow ejector is beginning to appear, as the efficiency of the ejector cycle is improved largely in comparison with the conventional system. Shock and expansion waves can
Haruyuki NISHIJIMA +3 more
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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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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
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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
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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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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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Aging and Cancer, EarlyView.This prospective study demonstrates that laparoscopic sphincter‐preserving surgery is feasible for elderly patients. While overall survival reaches 70% at 5 years, advanced T‐stage and the omission of neoadjuvant therapy significantly drive recurrence, highlighting the need for personalized geriatric protocols despite logistical challenges.
Huu Duc Ho +4 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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