Results 51 to 60 of about 9,407 (294)

Analysis of ejector expansion refrigeration cycle with two phase flow ejector

open access: yes, 2017
The aim of this study is to determine the operational characteristics of an ejector expansion refrigerationcycle (EERC) working with refrigerant R134a. A constant-area two phase flow ejector at critical mode ismodeled to determine the effect of condenser pressure (Pcond) and evaporator pressure (Pevap) on theperformance parameters of EERC: ejector ...
openaire   +3 more sources

Block Copolymers: Emerging Building Blocks for Additive Manufacturing

open access: yesAdvanced Functional Materials, EarlyView.
This review addresses how block copolymer (BCP) physics and rheology have led to the widespread use of BCPs in advanced additive manufacturing techniques, with particular emphasis on the untapped potential of these nanostructured materials toward achieving multi‐scale architected materials with unique, programmable material properties.
Alice S. Fergerson   +3 more
wiley   +1 more source

Optimal thermodynamic parameters of two-phase ejector refrigeration system for buses

open access: yesApplied Thermal Engineering, 2017
Abstract Air-conditioning is necessary for the comfort of passengers in commercial buses. However, installing an air-conditioning system can add extra load on the engine and result in extra fuel cost. Therefore, an improvement in the air-conditioning system can lower the fuel consumption of the buses and reduce the size of the evaporator and the ...
Unal, Saban   +2 more
openaire   +2 more sources

Intrabandgap States Engineering in Functionalized Nanodiamond to Generate Solvated Electrons for Photocatalysis Under Solar Illumination

open access: yesAdvanced Functional Materials, EarlyView.
The negative electron affinity of diamond allows to emit highly reductive electrons. By introducing intra‐bandgap states and an optimized electron transfer mechanism by surface functionalization with Ru(bpy)3, the formation of solvated electrons is achieved upon solar irradiation.
Benjamin Kiendl   +20 more
wiley   +1 more source

Analysis of Supersonic Flows inside a Steam Ejector with Liquid–Vapor Phase Change Using CFD Simulations

open access: yesThermo
In this work, different CFD models to compute flows inside a steam ejector were investigated. The results were compared to the analytical models as well as the experimental results from the literature.
Hugues Charton   +2 more
doaj   +1 more source

Analysis and Optimization of Exergy Flows inside a Transcritical CO2 Ejector for Refrigeration, Air Conditioning and Heat Pump Cycles

open access: yesEnergies, 2019
In this study, the exergy analysis of a CO2 (R744) two-phase ejector was performed using a 1D model for both single and double choking conditions. The impact of the back pressure on the exergy destruction and exergy efficiencies was presented to evaluate
Sahar Taslimi Taleghani   +2 more
doaj   +1 more source

Controlling 3D Contractility via Engineered Fibrous Hydrogel Composites

open access: yesAdvanced Functional Materials, EarlyView.
A tunable composite contractile assembly (CCA) is developed that can permit or resist contraction without changing cell‐adhesion and density, unlike collagen whose inherent coupling of these ECM cues limits its use as a platform in contractility studies.
Karen L. Xu   +7 more
wiley   +1 more source

Experimental Investigation on the CO2 Two-phase Ejector with Different Nozzle Exit Positions

open access: yesZhileng xuebao, 2021
The ejector is one of the key components of a transcritical CO2 ejector expansion refrigeration system, and the nozzle exit position (NXP) is the main geometric parameter.
Zhang Xiping   +3 more
doaj  

Interface concerns of ejector integration in V/STOL aircraft [PDF]

open access: yes, 1979
A number of areas which have in the past contributed to weight, complexity, and thrust losses in the ejector-powered V/STOL vehicle were identified. Most of these interfaces taken singly do not represent a severe compromise to the vehicle; however, the ...
Lowry, R. B.
core   +1 more source

Description of the Scenario Machine

open access: yes, 2007
We present here an updated description of the "Scenario Machine" code. This tool is used to carry out a population synthesis of binary stars. Previous version of the description can be found at http://xray.sai.msu.ru/~mystery//articles/review/contents ...
A. F. Illarionov   +112 more
core   +1 more source

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