Results 31 to 40 of about 207,661 (208)

A Numerical Analysis of the Influence of Nozzle Geometric Structure on Spontaneous Steam Condensation and Irreversibility in the Steam Ejector Nozzle

open access: yesApplied Sciences, 2021
The spontaneous condensation of wet steam often occurs in the steam ejector nozzle, this deteriorates the performance of the steam ejector. In this paper, we take changing the geometric parameters of the nozzle as the focus of our research and construct ...
He Li   +4 more
doaj   +1 more source

Experimental Study Of An Ejector Refrigeration System [PDF]

open access: yes, 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

Preliminary Study of a Novel Compact R718 Water Chiller With Integration of a Single Stage Centrifugal Compressor and Two-Phase Ejectors [PDF]

open access: yes, 2012
A novel compact R718 water chiller with integration of a centrifugal compressor stage and two phase ejectors as a second stage compression device is proposed. The paper describes the investigations of this R718 refrigerating cycle. The limitations of the
Sarevski, Vasko Nikola   +1 more
core   +1 more source

Numerical Study on Flow and Noise Characteristics of High-Temperature and High-Pressure Steam Ejector

open access: yesEnergies, 2023
Based on the shear stress transfer (SST) k-ω model, Ffowcs-Williams and Hawkings (FW–H) equation, and Lilley sound source equation, the flow and sound field of high-temperature and high-pressure steam ejectors are simulated.
Jiajie Zhang   +4 more
doaj   +1 more source

Silk Fibroin for Cardiovascular Medical Devices: Review of Material Properties, Applications, and Clinical Potential

open access: yesAdvanced NanoBiomed Research, EarlyView.
Silk fibroin is an attractive natural biomaterial that can be engineered into diverse cardiovascular constructs, including vascular grafts, cardiac patches, heart valves, and stent coatings. Its tunable biological and mechanical properties have driven substantial preclinical progress; however, widespread clinical translation in cardiovascular ...
Mahsa Haghighattalab   +8 more
wiley   +1 more source

Numerical Simulation on Two-Phase Ejector with Non-Condensable Gas

open access: yesEnergies
The two-phase ejector is a simple and compact pressure boosting device and widely used in ejector steam-generator water feeding systems and core emergency cooling systems.
Yinghua Chai   +5 more
doaj   +1 more source

Rethinking ethanol separation in continuous spirit production from a process intensification perspective

open access: yesJournal of Chemical Technology &Biotechnology, EarlyView.
Abstract Continuous neutral‐alcohol and food‐grade ethanol production is an energy‐intensive process in which distillation and rectification alone account for 50–85% of total plant energy use. While significant advances in separation technology have emerged over the past two decades, the spirits industry continues to rely predominantly on multi‐effect ...
Anton A Kiss
wiley   +1 more source

Experimental investigation on a parallel pressure compensation technology for the performance improvement of the steam ejector in ejector refrigeration system

open access: yesCase Studies in Thermal Engineering
The steam ejector, as a typical energy-saving device, plays a crucial role in the ejector refrigeration system (ERS). This study proposes a parallel pressure compensation technology to mitigate the high-pressure effect of the mixing chamber inside the ...
Guoyu Zhang   +2 more
doaj   +1 more source

Simulation of flow field in steam ejector and analysis of shock wave characteristics

open access: yesMATEC Web of Conferences, 2018
Fluent software is used to simulate the two-dimensional flow field in the steam ejector. The generation, development and end of shock in the flow field are analyzed. The influence of the shock wave characteristics on the ejector performance is discussed.
Cui Yi
doaj   +1 more source

Resource reallocation across successive systemic innovations: How Rolls‐Royce shaped the evolution of the turbojet, turboprop, and turbofan

open access: yesStrategic Management Journal, EarlyView.
Abstract Research Summary Despite the importance of resource reallocation in shaping a variety of strategic outcomes, strategy scholars have paid only limited attention to the processes by which firms reallocate their resources across successive systemic innovations.
Gino Cattani   +2 more
wiley   +1 more source

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