Results 41 to 50 of about 2,396 (167)

Analysis of the Influence of Heat Transfer in the Nozzle Divergence Section of Transcritical CO2 Two-phase Ejector

open access: yesZhileng xuebao
The 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
doaj   +2 more sources

Experimental Study on Performance of Dual-serial-throat Nozzle Ejector and Two-phase Ejector Refrigeration Cycle System

open access: yesZhileng 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
doaj  

Numerical Investigation Of A Refrigerant Ejector: Effect Of Ejector Geometry

open access: yesInternational Journal of Environmental Sciences
Ejectors have gained extensive utilization in refrigeration and air-conditioning systems recently, due to their simple design, minimal maintenance, and diminished expansion losses. The ejector performance is markedly sensitive to geometric configurations and refrigerant characteristics.
L.S. Aurangabadkar, S. Chaudhary
openaire   +1 more source

Experimental Study on Ejector Performance under Limiting Operating Condition

open access: yesZhileng xuebao, 2017
The ejector is the key component in a heat-driven ejector refrigeration system, and its performance is of considerable importance to the system efficiency.
Dai Zhengshu   +4 more
doaj  

Experimental investigation into flow in an ejector with four synthetic jets

open access: yesEPJ Web of Conferences, 2012
The article deals with experimental investigation into flow in an ejector with four synthetic jets. The aim of the synthetic jets is to excite the mixing layer in the ejector and intensify the mixing process.
Dančová Petra   +2 more
doaj   +1 more source

Optimal Design of Ejector Nozzle Profile with Internal and External Integrated Flow

open access: yesAerospace
Based on the orthogonal experimental method, a simulation case of the flow field of the ejector nozzle was designed to investigate the influence of the structural parameters of the ejector nozzle on the internal and external flow. This study explored the
Yihe He, Xiaojuan Shi, Honghu Ji
doaj   +1 more source

Efficiency enhancement of the ocean thermal energy conversion system with a vapor–vapor ejector

open access: yesAdvances in Mechanical Engineering, 2015
In this article, 20 kW ocean thermal energy conversion with a vapor–vapor ejector is newly proposed. As a vapor–vapor ejector is installed in the system, the pressure difference between the turbine inlet and outlet increases. Therefore, the amount of the
Ho-Saeng Lee   +7 more
doaj   +1 more source

Experimental investigation on noise radiation characteristics of pulse detonation engine–driven ejector

open access: yesAdvances in Mechanical Engineering, 2015
The noise radiation characteristics of multi-cycle pulse detonation engine with and without ejector were investigated under different operating frequencies utilizing gasoline as fuel and air as oxidizer.
Xi-qiao Huang   +4 more
doaj   +1 more source

Enhanced Performance and Reduced Emissions in Aviation Microturboengines Using Biodiesel Blends and Ejector Integration

open access: yesTechnologies
This study examines the impact of using eco-friendly biodiesel blends with Jet A fuel in aviation microturbine engines, both with and without an ejector.
Constantin Leventiu   +6 more
doaj   +1 more source

Effects of Geometric Parameter on Performance of Ejector and Two-phase Ejector Refrigeration System

open access: yesZhileng xuebao, 2013
In order to increase the coefficient of performance (COP) of the refrigeration system , the expansion valve is replaced by a two-phase ejector in the two-phase ejector refrigeration cycle to recover the potential energy of the high pressure refrigerant ...
Pei Wenwei   +3 more
doaj  

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