Results 21 to 30 of about 2,050,724 (303)

How to Construct a Combined S-CO2 Cycle for Coal Fired Power Plant?

open access: yesEntropy, 2018
It is difficult to recover the residual heat from flue gas when supercritical carbon dioxide (S-CO2) cycle is used for a coal fired power plant, due to the higher CO2 temperature in tail flue and the limited air temperature in air preheater. The combined
Enhui Sun   +4 more
doaj   +1 more source

Principle, Fabrication and Emerging Applications of Nanobottle Motor

open access: yesEnergies, 2022
Micro/nano-motors play an important role in energy, environment, and biomedicines. As a new type of nano-motors, nanobottles attract great attention due to their distinct advantages of a large cavity, high specific surface area, bionic streamline ...
Qingyuan Liu   +4 more
doaj   +1 more source

Flow characteristics and heat transfer performance in a Y-Fractal mini/microchannel heat sink [PDF]

open access: yes, 2019
This article presents a combined experimental and computational study to investigate the flow and heat transfer in a Y-fractal microchannel. Experimental apparatus was newly built to investigate the effect of three different control factors, i.e., fluid ...
Deng, Zhanfeng   +8 more
core   +2 more sources

Exergy Analysis of Two-Stage Organic Rankine Cycle Power Generation System

open access: yesEntropy, 2020
Organic Rankine cycle (ORC) power generation is an effective way to convert medium and low temperature heat into high-grade electricity. In this paper, the subcritical saturated organic Rankine cycle system with a heat source temperature of 100~150 °C is
Guanglin Liu   +3 more
doaj   +1 more source

Heat Flow on Alexandrov Spaces [PDF]

open access: yesCommunications on Pure and Applied Mathematics, 2012
AbstractWe prove that on compact Alexandrov spaces with curvature bounded below the gradient flow of the Dirichlet energy in the \documentclass{article} \usepackage{mathrsfs} \usepackage{amsmath, amssymb} \pagestyle{empty} \begin{document} \begin{align*}L^2\end{align*} \end{document}‐space produces the same evolution as the gradient flow of the ...
Gigli, Nicola   +2 more
openaire   +4 more sources

Research of cooling tower filler based on radial basis function artificial neural network (RBF ANN)

open access: yesEnergy Science & Engineering, 2023
The filler is the core component of the cooling tower, filler performance refers to both its thermal and flow resistance characteristics, which use empirical formulas of tower characteristic N, volumetric mass transfer coefficient βxv, and pressure drop ...
Lixin Zhang   +5 more
doaj   +1 more source

Photoactive decontamination and reuse of face masks

open access: yese-Prime: Advances in Electrical Engineering, Electronics and Energy, 2023
The corona virus disease 2019 (COVID-19) pandemic has led to global shortages in disposable respirators. Increasing the recycling rate of masks is a direct, low-cost strategy to mitigate COVID-19 transmission.
Dingzhang You   +4 more
doaj   +1 more source

Optimization of a Human-Powered Aircraft Using Fluid–Structure Interaction Simulations

open access: yesAerospace, 2016
The special type of aircrafts in which the human power of the pilot is sufficient to take off and sustain flight are known as Human-Powered Aircrafts (HPAs).
Bob Vanderhoydonck   +3 more
doaj   +1 more source

Experimental study on saturation pool boiling heat transfer characteristics of R245fa on the surface covered by sintered copper powder

open access: yesCase Studies in Thermal Engineering, 2022
In this paper, the mechanism of pool boiling heat transfer enhancement on the surface covered with sintered copper powder porous layer has been investigated.
Chao Dang   +5 more
doaj   +1 more source

Visible-Light-Driven Semiconductor–Metal Transition in Electron Gas at the (100) Surface of KTaO3

open access: yesNanomaterials, 2023
Two-dimensional electron gas (2DEG) at the (100) KTaO3(KTO) surface and interfaces has attracted extensive interest because of its abundant physical properties.
Xiaochen Tian   +9 more
doaj   +1 more source

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