Results 21 to 30 of about 22,112,552 (178)
Zhileng xuebao, 2012 Experimental studies on the transcritical CO2 two-phase ejector refrigeration cycle were carried out, and the effects of the working conditions and the geometric parameters of the ejector on the performance of the system were analyzed.
Li Qian +3 more
doaj +2 more sources
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
doaj +1 more source
Shape optimisation of a two-phase ejector for CO 2 refrigeration systems [PDF]
International Journal of Refrigeration, 2017 The shape optimisation of four CO2 ejectors is presented in this study. The considered ejectors were originally designed for a multi-ejector supermarket CO2 refrigeration system. The objective function was formulated to consider the multiple operating regimes, where the goal of the optimisation was to maximise the device efficiency.
Michal Palacz +4 more
openaire +3 more sources
International Journal of Advanced Nuclear Reactor Design and Technology, 2020 When injectors are used in petroleum industries or sea water desalination system, it is a special case that the induced gas is accompanied by water, the ejector is in two-phase operation. In the present study, the ejector performance at two phase flow is
WeiXiong Chen +5 more
doaj +1 more source
Energies, 2020 A two-phase flow ejector is an important part of a water mist fire suppression system, and these devices have become a popular research topic in recent years. This paper proposes a supersonic ejector that aims to improve the efficiency of water mist fire
Shizhen Li +4 more
doaj +1 more source
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
doaj +1 more source
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
openaire +2 more sources
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
doaj +1 more source
Characteristics Of R718 Thermocompression Refrigerating / Heat Pump Systems With Two-Phase Ejectors [PDF]
, 2012 The paper describes the investigations of the R718 thermocompression refrigerating cycle with two-phase ejector as a compression device. The complex thermal and flow phenomena connected with compression and condensation inside the two-phase ejector flow ...
Sarevski, Vasko Nikola +1 more
core +1 more source
Experimental Study Of An Ejector Refrigeration System [PDF]
, 2012 The aim of the present work is to experimentally study the possibility of improving the energy efficiency of a vapour compression refrigeration system where a two-phase ejector replaces the expansion valve.
Reddick, Christopher +2 more
core +1 more source