Results 71 to 80 of about 7,899 (310)

A Mechanistic Study of Bio‐Based Nanotemplated Carbon Nanofibers Derived From Water Processable Lignin Blends for Sustainable Energy Storage Applications

open access: yesAdvanced Materials, EarlyView.
As‐spun carbon materials produced from Lignosulfonate, gelatin, and alginate, selected for water solubility, and ability to produce templated sustainable carbon nanostructures. Gelatin and alginate are sacrificial during thermal processing, allowing the production of engineered high surface area nanostructures, which are further characterized for ...
Judith Miralda‐Jalle   +6 more
wiley   +1 more source

Experimental Study Of An Ejector Refrigeration System

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  

Efficient design and experimental research of large temperature drop ejector heat pump heating system

open access: yesCase Studies in Thermal Engineering
To solve the problem of heating network expansion in the field of central heating, an ejector heat pump system which can use medium and low grade heat sources to realize large temperature drop heating is proposed.
Jiyou Lin   +3 more
doaj   +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  

ANALYSIS OF EFFICIENCY WASTE HEAT RECOVERY THERMORESSURE-EJECTOR REFRIGERATING MACHINE

open access: yesАвіаційно-космічна техніка та технологія, 2019
One of the ways to increase the energy efficiency of ejector refrigerating machines is to use of thermopressor technologies, which are based on to use of the process of thermogasdynamic compression.
Дмитро Вікторович Коновалов
doaj   +1 more source

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

open access: yesAdvanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan   +6 more
wiley   +1 more source

Study on Ejector - Vapor Compression Hybrid Air Conditioning System Using Solar Energy

open access: yes, 2012
The ejector cycle has been recognized as a promising cycle for the utilization of solar energy for cooling. However, the conventional ejector cycle suffers from low efficiency owing to a low evaporation temperature.
Dang, Chaobin   +2 more
core  

Ejector primary nozzle steam condensation: area ratio effects and mixing layer development

open access: yes, 2014
Recent ejector simulations based on wet steam modeling give significantly different performance figures relative to ideal gas modeling, but the origins of such differences are not clear.
Malpress, Ray   +3 more
core   +1 more source

Mechanical Stress Evolution in Polycrystalline Ge Thin Films Under MeV Ion Irradiation

open access: yesAdvanced Materials Interfaces, EarlyView.
Irradiation of polycrystalline Ge thin films with 1.8 MeV Au ions alters residual stress through defect generation and lattice expansion. Increasing fluence drives progressive lattice disorder and eventual amorphization. Polycrystalline Ge resists amorphization longer than crystalline Ge, as grain boundaries facilitate defect diffusion, significantly ...
Karla J. Paz Corrales   +10 more
wiley   +1 more source

Simple Synthesis of Entropy Stabilized Oxides Single Crystal Films

open access: yesAdvanced Materials Interfaces, EarlyView.
Diffusion‐controlled enables the creation of a single‐crystal thin film of Entropy‐stabilized oxides (ESO). ABSTRACT Entropy‐stabilized oxides (ESO) have emerged in the last decade as a new class of metastable materials with promising functional properties.
Antoine Raison   +6 more
wiley   +1 more source

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