Results 21 to 30 of about 387 (138)

Optimization of Dimples in Microchannel Heat Sink with Impinging Jets—Part B: the Influences of Dimple Height and Arrangement [PDF]

open access: yes, 2018
The combination of a microchannel heat sink with impinging jets and dimples (MHSIJD) can effectively improve the flow and heat transfer performance on the cooling surface of electronic devices with very high heat fluxes.
Cai, C   +5 more
core   +1 more source

Review on system and materials requirements for high temperature thermal energy storage. Part 1: General requirements [PDF]

open access: yes, 2016
High temperature thermal energy storage offers a huge energy saving potential in industrial applications such as solar energy, automotive, heating and cooling, and industrial waste heat recovery. However, certain requirements need to be faced in order to
Cabeza, Luisa F.   +2 more
core   +2 more sources

Generalized Thermodynamic Optimization for Iron and Steel Production Processes: Theoretical Exploration and Application Cases

open access: yesEntropy, 2016
Combining modern thermodynamics theory branches, including finite time thermodynamics or entropy generation minimization, constructal theory and entransy theory, with metallurgical process engineering, this paper provides a new exploration on generalized
Lingen Chen, Huijun Feng, Zhihui Xie
doaj   +1 more source

A design rule for constant depth microfluidic networks for power-law fluids [PDF]

open access: yes, 2015
A biomimetic design rule is proposed for generating bifurcating microfluidic channel networks of rectangular cross section for power-law and Newtonian fluids.
Barber, Robert W.   +3 more
core   +1 more source

Applying Geospatial Semantic Array Programming for a Reproducible Set of Bioclimatic Indices in Europe

open access: yes, 2014
Bioclimate-driven regression analysis is a widely used approach for modelling ecological niches and zonation. Although the bioclimatic complexity of the European continent is high, a particular combination of 12 climatic and topographic covariates was ...
Caudullo, Giovanni
core   +1 more source

Target-driven splitting SPH optimization of thermal conductivity distribution

open access: yes, 2023
Efficiently enhancing heat conduction through optimized distribution of a limited quantity of high thermal conductivity material is paramount in cooling electronic devices and numerous other applications. This paper introduces a target-driven all-at-once
Hu, Xiangyu, Zhang, Bo, Zhang, Chi
core   +1 more source

Constructal optimization for an organic fluid shell-and-tube heat exchanger based on entransy theory [PDF]

open access: yesSCIENTIA SINICA Technologica, 2020
Based on constructal theory and entransy theory, constructal optimization of a shell-and-tube heat exchanger (STHE) for the organic fluid evaporation process is performed using a complex function as an optimization objective. The complex function is composed of the entransy dissipation rate (EDR) caused by heat transfer and the total pumping power. The
HuiJun FENG   +4 more
openaire   +1 more source

Performance characterizations and thermodynamic analysis of magnesium sulfate-impregnated zeolite 13X and activated alumina composite sorbents for thermal energy storage [PDF]

open access: yes, 2019
The composite sorbents of MgSO4-impregnated zeolite 13X and activated alumina are developed for thermal energy storage (TES) with different temperature ranges. The sorption and desorption characteristics of raw and MgSO4-impregnated activated alumina are
Wang, L.W.   +3 more
core   +2 more sources

Discussion on the application of entransy theory to heat-work conversion processes

open access: yesActa Physica Sinica, 2014
Applications and limitations of the entransy theory for heat-work conversion processes are analyzed and discussed in this paper. Our analyses for the Carnot cycle show that the system entransy of the Carnot cycle is in balance, but the relationship, dG=T2dS, does not exsit between the concepts of entransy and entropy.
null Cheng Xue-Tao, null Liang Xin-Gang
openaire   +1 more source

Optimizing the Size of a Moving Annular Hollow Laser Heat Source

open access: yesEnergies
The physical phenomenon of the annular hollow laser surface treatment process is complex, and the internal mechanism involves multiple disciplines and fields.
Yongqi Ding, Xiaohui Zhang
doaj   +1 more source

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