Design and Testing of a Micro Bubble-Pumped Heat Pipe

2002 ◽  
Author(s):  
Koji Takahashi ◽  
Kouichiro Yoshino ◽  
Tatsuya Ikuta ◽  
Kunihito Nagayama ◽  
Tanemasa Asano
Keyword(s):  
Energy Consumption ◽  
Thermal Management ◽  
Bubbly Flow ◽  
Heat Removal ◽  
Low Energy ◽  
Removal Mechanism ◽  
Key Factors ◽  
Low Energy Consumption ◽  
Micro Bubble ◽  
Design And Testing

Micro thermal management devices using bubble in microchannel are under development. The heat removal mechanism of this device consists of phase change and forced convection which occur simultaneously and harmonically. Bubble expension in horn-shaped microchannel gives directional purnping by low-energy consumption. Several kinds of chips are built and tested. The uncontrollable phenomena of bubbly flow in microchannels and the key factors for further improvement are discussed.

Coralloid Au enables high-performance Zn-CO2 battery and self-driven CO production

2021 ◽  
Author(s):  
Sanshuang Gao ◽  
Mengmeng Jin ◽  
Jiaqiang Sun ◽  
Xijun Liu ◽  
Shusheng Zhang ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Current Density ◽  
High Performance ◽  
Co2 Fixation ◽  
High Current Density ◽  
Low Energy ◽  
Co2 Conversion ◽  
High Current ◽  
Key Factors ◽  
Low Energy Consumption

The electrocatalytic CO2 conversion with high current density and low energy consumption are dimerous key factors for practical CO2 fixation. Herein, coralloid Au was prepared via a facile electrodeposition approach,...

A Study on the Use of Bipolar-Particles-Electrodes in Decolorization of Dyeing Effluents and Its Principle

1987 ◽  
Vol 19 (3-4) ◽  
pp. 391-400 ◽  
Author(s):  
Zhou Ding ◽  
Cai Wei Min ◽  
Wang Qun Hui
Keyword(s):  
Energy Consumption ◽  
High Efficiency ◽  
Low Energy ◽  
Acid Dyes ◽  
Underlying Principle ◽  
Low Energy Consumption ◽  
Transparent Liquid

This paper studies the use of bipolar-particles-electrodes in the decolorization of dyeing effluents. Treatment of highly colored solutions of various soluble dyes (such as direct, reactive, cationic or acid dyes) and also samples of dyeing effluents gave rise to an almost colorless transparent liquid, with removal of CODcr and BOD5 being as high as over 80%. The method is characterized by its high efficiency, low energy consumption and long performance life. A discussion of the underlying principle is given.

scholarly journals A Long-Distance Communication Architecture for Medical Devices Based on LoRaWAN Protocol

Electronics ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 940
Author(s):  
Nicoleta Cristina Gaitan
Keyword(s):  
Energy Consumption ◽  
Long Range ◽  
Medical Devices ◽  
Low Energy ◽  
Area Network ◽  
Wide Area Network ◽  
Long Distance ◽  
Communication Architecture ◽  
Low Energy Consumption ◽  
Distance Communication

Recent market studies show that the market for remote monitoring devices of different medical parameters will grow exponentially. Globally, more than 4 million individuals will be monitored remotely from the perspective of different health parameters by 2023. Of particular importance is the way of remote transmission of the information acquired from the medical sensors. At this time, there are several methods such as Bluetooth, WI-FI, or other wireless communication interfaces. Recently, the communication based on LoRa (Long Range) technology has had an explosive development that allows the transmission of information over long distances with low energy consumption. The implementation of the IoT (Internet of Things) applications using LoRa devices based on open Long Range Wide-Area Network (LoRaWAN) protocol for long distances with low energy consumption can also be used in the medical field. Therefore, in this paper, we proposed and developed a long-distance communication architecture for medical devices based on the LoRaWAN protocol that allows data communications over a distance of more than 10 km.

Absorbent cotton derived mesoporous CeO2 hollow tubule for enhanced detection of p-xylene at low energy consumption

2021 ◽  
pp. 159774
Author(s):  
Jing-Shuo Liu ◽  
Bao-Yu Song ◽  
Jing Huang ◽  
Zhao-Peng Deng ◽  
Xian-Fa Zhang ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Low Energy ◽  
Absorbent Cotton ◽  
Low Energy Consumption ◽  
Mesoporous Ceo2

scholarly journals Migration and Enrichment Behaviors of Ca and Mg Elements during Cooling and Crystallization of Boron-Bearing Titanium Slag Melt

Crystals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 888
Author(s):  
Helin Fan ◽  
Ruixiang Wang ◽  
Zhifeng Xu ◽  
Huamei Duan ◽  
Dengfu Chen
Keyword(s):  
Energy Consumption ◽  
Low Energy ◽  
Crystallization Condition ◽  
Titanium Slag ◽  
Synthetic Rutile ◽  
Low Energy Consumption ◽  
Slag Melt ◽  
Element Migration

Synthetic rutile was prepared from titanium slag melt with low energy consumption and a small amount of additive (B2O3) in our previous work. The modification mechanism of titanium slag was not clear enough. The migration and enrichment behaviors of Ca and Mg elements during cooling and crystallization of boron-bearing titanium slag melt were characterized by XRF, FESEM, EMPA, and XPS. Results show that when additive (B2O3) is added, Ti elements are migrated and enriched in the area to generate rutile, while Ca, Mg, and B elements are migrated and enriched in another area to generate borate. With the additive (B2O3) amount increased, Ca and Mg element migration is complete and more thorough. Additive (B2O3) promotes rutile formation and inhibits the formation of anosovite during cooling and crystallization of titanium slag melt. With the additive (B2O3) amount increasing from 0% to 6%, the proportion of Ti3+ in the modified titanium slag reduces from 9.15% to 0%, and the proportion of Ti4+ increases from 90.85% to 100% under the same cooling and crystallization condition. The result will lay the foundation for the efficient preparation of synthetic rutile by adding B2O3 to the titanium slag melt.

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