Results 1 to 10 of about 14,718 (261)

Two-phase microfluidics: thermophysical fundamentals and engineering concepts

open access: yesJournal of Physics: Conference Series, 2016
Thermophysical fundamentals and engineering concepts of the two-phase microfluidic devises based on controlled liquid decay are discussed in this paper. The results of an experimental study of the explosive evaporation at a thin film heater of the MEMS devise in application to thermal inkjet printing are presented.
openaire   +1 more source

A Numerical Study of the Sealing and Interstage Pressure Drop Characteristics of a Four-Tooth Three-Stage Brush Combination Seal

open access: yesApplied Sciences
Premature seal failure induced by the unevenness of interstage pressure distribution in multi-stage brush seals significantly compromises the sealing efficiency of Air-Turbo Rocket (ATR) engines operating under high-pressure (megapascal-level ...
Chao Gu   +5 more
doaj   +1 more source

ERRATA:Diagnostic Technique for Degradation of Engineering Materials by Measurement of Thermophysical Properties

open access: yesNetsu Bussei, 2007
工業材料は表面に多数の微視き裂が発生する劣化初期段階で表面層のみかけ熱伝導率が変化する。熱物性のその場測定技術により、その熱伝導率変化から劣化の度合いを評価、診断する方法を開発した。この微視き裂層が存在する場合について、固体熱物性テスターによる温度応答および熱伝導率測定値に対する影響を理論的に検討した。この理論を検証するために金属材料を用いて疲労試験を行い、試験前後での材料表面と熱伝導率の変化を比較検討した。その結果、それらの熱伝導率減少度から劣化評価パラメータの推算が可能であることを確認した。
Kazunori Kato, Ichiro Takahashi
openaire   +2 more sources

SPECIFIC HEAT CAPACITY AND THERMAL CONDUCTIVITY OF HEAT STORAGE MATERIALS BASED ON PARAFFIN, BROWN-COAL WAX AND POLYETHYLENE WAX [PDF]

open access: yesProblems of the Regional Energetics, 2014
The present paper overviews heat storage materials (HSM) with phase change based on organic compounds. They consist of paraffin, brown-coal wax and polyethylene wax. These materials are produced on an industrial scale for the foundry work.
Snezhkin Yu.   +4 more
doaj  

Knowledge graph-based intelligent control systems for real-time machine tool optimization

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing
The stability of computer numerical control machine tool operation directly affects production efficiency and quality. However, there are some uncertain factors concerning with environment in which the control effect of these tools is not ideal.
Hailong YANG, Jun YAO, Baorui DU
doaj   +1 more source

Steam gasification reactivity of a high-sodium coal fly ash obtained from a pilot scale CFB gasifier

open access: yesInternational Journal of Coal Science & Technology, 2018
Circulating fluidized bed (CFB) gasification has several advantages for the utilization of low rank coals. However, the carbon content of fly ash is usually very high, which greatly influences the gasification efficiency.
Haixia Zhang, Kuangshi Yu, Zhiping Zhu
doaj   +1 more source

Mixing in a T-type micromixer at high Reynolds numbers [PDF]

open access: yes, 2011
This paper was presented at the 3rd Micro and Nano Flows Conference (MNF2011), which was held at the Makedonia Palace Hotel, Thessaloniki in Greece.
3rd Micro and Nano Flows Conference (MNF2011)   +4 more
core  

Solar radiation in the earth’s surface

open access: yesBudownictwo o Zoptymalizowanym Potencjale Energetycznym, 2018
The work is devoted to the estimation of the intensity and energy of solar radiation at the earth's surface. The aim of the research is to develop a mathematical model of solar radiation, necessary for the design of devices forrenewable ...
B. I. Basok   +2 more
doaj   +1 more source

Effect of C/CO2 molar ratio on CO2 atmosphere fluidized preheating activation characteristics of semi-char

open access: yesMeitan xuebao
There are many fields involved in China’s industry, and the carbon reduction is urgent. Oxy-fuel combustion is the core process of carbon capture in combustion.
Haixia ZHANG   +4 more
doaj   +1 more source

The Effect of Wet Compression on a Centrifugal Compressor for a Compressed Air Energy Storage System

open access: yesEnergies, 2019
There is an urgent demand to reduce compression power consumption in Compressed Air Energy Storage (CAES) systems. Wet compression has been widely used in gas turbines to reduce compressor power consumption and improve thermal efficiency, but this ...
Jianting Sun   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy