Results 11 to 20 of about 9,407 (294)
Numerical investigation of heat transfer in a CO2 two-phase ejector [PDF]
Energy, 2018 Abstract In this paper, the influence of heat transfer in the walls of an R744 two-phase ejector on ejector performance was investigated. A numerical investigation was performed using a computational fluid dynamic (CFD) model of the R744 two-phase flow coupled with the heat transfer inside the ejector.
Michal Haida +7 more
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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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Zhileng xuebao, 2014 The two-phase ejector refrigeration cycle (TPERC) system with a dual-serial-throat nozzle ejector was investigated experimentally, and the entrainment ratio of the ejector and the COP of the system were compared with those of the ejector with Laval ...
Ren Liqian, Guo Xianmin, Li Tianlong
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A CO2 Two-phase Ejector Model Based on Delayed Equilibrium Model
Zhileng xuebao, 2016 The ejector is key to the performance of the transcritical CO2 ejector refrigeration system. Considering the complex processes, such as metastable phase change, supersonic flow, and choking phenomena et al., in the CO2 two-phase ejector, a 1D distributed
He Yang +4 more
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Energy Reports, 2022 In this paper, the performance enhancement of the two-phase ejector installed into the refrigeration system called an ejector-expansion refrigeration system (EERS) is investigated experimentally.
Kittiwoot Sutthivirode +1 more
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A Simple Design Approach of Two-Phase Ejectors for CO2 Transcritical Heat Pumps [PDF]
Journal of Applied Fluid Mechanics, 2023 Integrating a two-phase ejector in mechanical vapor compression heat pumps is a practical and low-cost solution for improving performance and reducing energy consumption.
K. Ameur, Z. Aidoun
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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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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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An Ejection Mechanism Design Method for AIM Tools [PDF]
, 1999 One of the key advantages of AIM tooling is time savings when producing small batch production quality parts. However, designing suitable ejection mechanisms is becoming a bottleneck. There are two goals of this paper.
Jangha, Sundiata K., Rosen, David W.
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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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