Results 21 to 30 of about 7,899 (310)

Screening refrigerant for a new enhanced ejector heat exchanger used in district heating system based on industrial waste heat [PDF]

open access: yesE3S Web of Conferences, 2021
Performance of the new enhanced ejector heat exchanger is the key to improving performance of the district heating system based on industrial waste heat, and it is significantly affected by thermo-physical property of refrigerant.
Sun Fangtian, Hao Baoru, Chen Xu
doaj   +1 more source

Numerical analysis of The Effect of Annular Ejector on The Performance of Self-Evaporating Magneto-Hydro-Dynamic System

open access: yesJournal of Sustainable Development of Energy, Water and Environment Systems, 2023
Recent developments in Liquid Metal Magnetohydrodynamic systems show that the self-evaporating magnetohydrodynamic system is a promising power generator that converts heat directly into electricity dispensing with a mixer and separator found in ...
Anwar Alza\'areer   +2 more
doaj   +1 more source

Annular Supersonic Ejector Design and Optimization [PDF]

open access: yes, 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
core   +1 more source

CFD Simulation of the Effect of Pulsed Jet on the Performance of Liquid-liquid Ejector

open access: yesChemical Engineering Transactions, 2017
The aim of this study was to reveal the dynamic characteristics of the liquid-liquid ejector with a pulse current. A three-dimensional ejector model was established. The performances of sucking fluids and mixing performance between the steady ejector and
H. Bie, C. Li, W. An, Y. Jia, J. Zhu
doaj   +1 more source

Review of Ejector Research and Applications in Refrigeration

open access: yesZhileng xuebao, 2021
In this study, the working mechanism, performance evaluation indexes, and theoretical models of an ejector are summarized. The effects of the configuration and dimensions of an ejector and its nozzle, suction chamber, constant-area section, and diffuser ...
Chen Guangming   +4 more
doaj  

Numerical Modeling of Ejector and Development of Improved Methods for the Design of Ejector-Assisted Refrigeration System

open access: yesEnergies, 2020
An ejector is a simple mechanical device that can be integrated with power generation or the refrigeration cycle to enhance their performance. Owing to the complex flow behavior in the ejector, the performance prediction of the ejector is done by ...
Hafiz Ali Muhammad   +9 more
doaj   +1 more source

KAJI EKSPERIMENTAL PENGARUH ANGLE MIXING CHAMBER TERHADAP UNJUK KERJA STEAM EJECTOR REFRIGERATION

open access: yesSimetris: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer, 2013
Abstrak Sistem steam ejector refrigeration merupakan siklus refrigerasi dengan memanfaatkan energi yang terbuang. Siklus steam ejector refrigeration menggunakan fluida air sebagai refrigeran sehingga lebih ramah lingkungan, selain itu sistem steam ...
Bachtiar Setya Nugraha
doaj   +1 more source

Designing Hydrogen Recirculation Ejectors for Proton Exchange Membrane Fuel Cell Systems

open access: yesEnergies, 2023
The proton exchange membrane fuel cell (PEMFC) is a promising device in the fields of power generation, energy storage, aerospace, and public transportation.
Jianmei Feng   +3 more
doaj   +1 more source

Performance Analysis on a Power and Ejector-Refrigeration System and the Involved Ejector

open access: yesFrontiers in Energy Research, 2019
In order to make better use of the thermal energy at low and medium temperature and improve the organic Rankine cycle performance, the power, and ejector-refrigeration system has been put forward and a lot of research has been carried out.
Xiaolin Zhang   +5 more
doaj   +1 more source

An Object-Oriented R744 Two-Phase Ejector Reduced-Order Model for Dynamic Simulations

open access: yesEnergies, 2019
The object-oriented two-phase ejector hybrid reduced-order model (ROM) was developed for dynamic simulation of the R744 refrigeration system. OpenModelica software was used to evaluate the system’s performance. Moreover, the hybrid ROM results were
Michal Haida   +6 more
doaj   +1 more source

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