Results 21 to 30 of about 13,334 (263)

Design and Investigation of a Dynamic Auto-Adjusting Ejector for the MED-TVC Desalination System Driven by Solar Energy

open access: yesEntropy, 2022
Ejectors have been widely used in multi-effect distillation, thermal vapor compression (MED-TVC) desalination systems due to their simple structures and low energy consumption.
Jianbo Ren   +5 more
doaj   +1 more source

Numerical Characterization of the Flow Dynamics and COP Estimation of a Binary Fluid Ejector Ground Source Heat Pump Cooling System

open access: yesFluids, 2022
Ejector-based refrigeration systems can make direct use of many forms of thermal energy, such as solar thermal, waste heat, biogas, or natural gas. The present paper describes the estimation of the thermal coefficient of performance (COP) of a binary ...
Mouhammad El Hassan
doaj   +1 more source

Experimental and numerical investigation of two phase ejector performance with the water injected into the induced flow

open access: yesInternational 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

MEASUREMENT OF ENTRAINMENT RATIO DURING HIGH FREQUENCY JET VENTILATION

open access: yesBritish Journal of Anaesthesia, 1990
We have measured tidal (VT), entrained (Ve) and "blowback" (Vbb) volumes during high frequency jet ventilation (HFJV) through a Mallinckrodt Hi-Lo Jet tracheal tube in anaesthetized patients. The above volumes were calculated by digital integration of the appropriate regions of flow curves derived from a pneumotachograph placed between the bias flow ...
M J, Jones   +3 more
openaire   +2 more sources

Triple-Nozzle Thermo-Compressor: Geometrical Investigation and Comparison with Single-Nozzle Thermo-Compressor [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
Primary nozzle is one of the most important factors which has a large influence on the performance of thermo-compressors. Most of studies carried out until now, have been performed on single-nozzle thermo-compressors.
S. Asgarnejad   +2 more
doaj   +1 more source

The Relationship between Flux Coefficient and Entrainment Ratio in Density Currents [PDF]

open access: yesJournal of Physical Oceanography, 2010
Abstract The authors explore the theoretical and empirical relationship between the nonlocal quantities of the entrainment ratio E, the appropriately depth- and time-averaged flux coefficient Γ, and the bulk Froude number Fro in density currents.
Wells, Mathew   +2 more
openaire   +2 more sources

Analytical and Numerical Study on the Performance of ‎Supersonic Ejector at Different Operating Conditions ‎and Working Fluids

open access: yesJournal of Applied Fluid Mechanics, 2021
The computation of ejector geometry for a given fluid is essential and plays a crucial role in creating an ejector profile and performance analysis.
S. K. Yadav, K. M. Pandey, R. Gupta
doaj  

Performance Analysis of Airfoil-like Spoiler Element Air Ejector Based on Topology Optimization [PDF]

open access: yesZhengzhou Daxue xuebao. Gongxue ban
Aiming at the problem of low entrainment ratio of the traditional air ejector, the topology optimization method was used to optimize its structure. And an air ejector with airfoil-like spoiler element was proposed based on the topology optimization ...
LIU Huadong, ZHANG Ya, HAO Qi, SUN Hao
doaj   +1 more source

Experimental Performance of a Two-Phase Ejector: Nozzle Geometry and Subcooling Effects

open access: yesInventions, 2020
This paper presents the results of an experimental study on a two-phase ejector. The main objective is to assess the effects of the nozzle’s divergent and the throat diameter on performance under various working conditions.
Khaled Ameur   +2 more
doaj   +1 more source

Numerical Investigation on the Performance of Two-Throat Nozzle Ejectors with Different Mixing Chamber Structural Parameters

open access: yesEnergies, 2021
In this study, the effects of the mixing chamber diameter (Dm), mixing chamber length (Lm) and pre-mixing chamber converging angle (θpm) were numerically investigated for a two-throat nozzle ejector to be utilized in a CO2 refrigeration cycle.
Fatong Jia, Dazhang Yang, Jing Xie
doaj   +1 more source

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