Results 41 to 50 of about 1,112,829 (215)

Visualization and research of gas-liquid two phase flow structures in cylindrical channel

open access: yesE3S Web of Conferences, 2017
Two-phase flows are commonly found in many industries, especially in systems, where efficient and correct functioning depend on specific values of flow parameters. In thermal engineering and chemical technology the most popular types of two-phase mixture
Stefański Sebastian   +3 more
doaj   +1 more source

Field flows of dark energy [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2008
9 pages, 5 ...
Cahn, Robert N.   +2 more
openaire   +2 more sources

Energy and material flows of megacities [PDF]

open access: yesProceedings of the National Academy of Sciences, 2015
SignificanceOur quantification of energy and material flows for the world’s 27 megacities is a major undertaking, not previously achieved. The sheer magnitude of these flows (e.g., 9% of global electricity, 10% of gasoline; 13% of solid waste) shows the importance of megacities in addressing global environmental challenges.
Kennedy, Christopher A   +27 more
openaire   +5 more sources

The Analysis of Heat Exchangers Geometry in Thermoelectric Generators for Waste Heat Utilization

open access: yesE3S Web of Conferences, 2016
The paper presents results of the analysis and comparison of the hot-side heat exchangers (HHXs) dedicated for the thermoelectric generators (TEGs). Efficient operation of TEG depends on, i.a. proper design of the HHX.
Borcuch Marcin   +3 more
doaj   +1 more source

Thermogravimetric Assessment and Differential Thermal Analysis of Blended Fuels of Coal, Biomass and Oil Sludge

open access: yesApplied Sciences, 2023
The coupled combustion of biomass and organic solid wastes including oil sludge has attracted much attention. Although the optimal mixing ratio of different coal types and biomass has been extensively studied, little attention has been paid to oil sludge
Lingxiao Dong   +4 more
doaj   +1 more source

Evaluation of Virtual Refrigerant Mass Flow Sensors [PDF]

open access: yes, 2012
Refrigerant mass flow rate is an important measurement for monitoring equipment performance and enabling fault detection and diagnostics. However, a traditional mass flow meter is expensive to purchase and install. A virtual refrigerant mass flow sensor (
Kim, Woohyun, Braun, James E.
core   +1 more source

An experimental comparison of min-cut/max- flow algorithms for energy minimization in vision [PDF]

open access: yes, 2004
Minimum cut/maximum flow algorithms on graphs have emerged as an increasingly useful tool for exactor approximate energy minimization in low-level vision.
Yuri Boykov   +3 more
core  

Anomalous Behavior of Anion Exchange Membrane during Operation of a Vanadium Redox Flow Battery [PDF]

open access: yes, 2019
Vanadium redox flow batteries (VRFBs) are becoming an integral component of renewable energy solutions, microgrids, and backup storage systems. The reduction in cell resistance due to advancements in the electrode and overall component design allows flow
Nyunt Wai   +19 more
core   +1 more source

Maximization of performance of a PCM – based thermal energy storage systems [PDF]

open access: yesEPJ Web of Conferences, 2019
Phase change materials (PCMs) are significant in terms of applicability for the thermal energy storage (TES). Thanks to the high thermal storage density and wide range of phase transition temperature they are promising storage mediums for a large number ...
Kuta Marta   +2 more
doaj   +1 more source

Material Flow, Energy Flow and Energy Flow Network in Iron and Steel Enterprise [PDF]

open access: yes, 2012
The research on material flow, energy flow and the relationship between them will benefit the construction of a resource saving and environmentally friendly enterprise. Recently, more and more researchers are paying their attentions to the study of material flow and energy flow of iron and steel enterprise. The modern iron & steel joint enterprise is a
Wen-qiang Sun, Jiu-ju Cai
openaire   +1 more source

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