Results 31 to 40 of about 147,924 (303)

Numerical Study on Regenerative Cooling Characteristics of Kerosene Scramjets

open access: yesInternational Journal of Aerospace Engineering, 2020
The use of kerosene-based regenerative cooling for scramjet has been found widespread attention due to its inherent nature of high energy utilization efficiency and good thermal protection performance. In order to provide a reference for the later design
Xuan Jin, Chibing Shen, Xianyu Wu
doaj   +1 more source

Modeling and Numerical Investigation of Transient Two-Phase Flow with Liquid Phase Change in Porous Media

open access: yesNanomaterials, 2021
Two-phase flow with phase change in microstructure or nanostructure is an important issue in many fronts and critical applications nowadays, but with a lack of comprehensive understanding of the mechanism.
Fei He, Wenjie Dong, Jianhua Wang
doaj   +1 more source

Convection Heat-Transfer Characteristics of Supercritical Pressure RP-3 in Horizontal Microchannels

open access: yesEnergies
To enhance the heat-transfer performance of scramjet engines, a numerical simulation was conducted on the heat-transfer process of RP-3 aviation kerosene under supercritical pressure within a horizontal micro-fine circular tube.
Qiaoling Zhang   +4 more
doaj   +1 more source

A Review of Flow and Heat Transfer Characteristics of Supercritical Carbon Dioxide under Cooling Conditions in Energy and Power Systems

open access: yesEnergies, 2022
Supercritical carbon dioxide (SCO2) is widely used in many fields of energy and power engineering, such as nuclear reactors, solar thermal power generation systems, and refrigeration systems.
Dingchen Wu   +4 more
doaj   +1 more source

Experimental investigation of small diameter two-phase closed thermosyphons charged with water, FC-84, FC-77 and FC-3283 [PDF]

open access: yes, 2010
Copyright © 2009 Elsevier Ltd. All rights reserved.An experimental investigation of the performance of thermosyphons charged with water as well as the dielectric heat transfer liquids FC-84, FC-77 and FC-3283 has been carried out. The copper thermosyphon
Jouhara, H, Robinson, AJ
core   +1 more source

Study on comprehensive performance evaluation for condensation heat transfer inside the micro-fin tube

open access: yesAdvances in Mechanical Engineering, 2020
To develop a comprehensive performance evaluation model of heat transfer tube, the flow condensation heat transfer experiment of R1234yf inside the tube was operated.
Liu Wei
doaj   +1 more source

The effects of water and microstructure on the performance of polymer electrolyte fuel cells [PDF]

open access: yes, 2006
n this paper, we present a comprehensive non-isothermal, one-dimensional model of the cathode side of a Polymer Electrolyte Fuel Cell. We explicitly include the catalyst layer, gas diffusion layer and the membrane.
A. Young   +59 more
core   +1 more source

Natural convection from a pair of differentially-heated horizontal cylinders aligned side by side in a nanofluid-filled square enclosure [PDF]

open access: yes, 2017
A two-phase model based on the double-diffusive approach is used to perform a numerical study on natural convection from a pair of differentially-heated horizontal cylinders set side by side in a nanofluid-filled adiabatic square enclosure.
Corcione, Massimo   +3 more
core   +1 more source

The effect of hydrodynamic flow unsteadiness on heat transfer enhancement in a channel with square ribs

open access: yesMATEC Web of Conferences, 2017
The heat transfer coefficient has been measured in the channel with square ribs for the case of periodic flow rate variation. New technique for heat transfer coefficient measurements has been applied in the study.
Dushin Nikolay   +4 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

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