Research on Thermal Properties of a Solar Air Collector

2013 ◽  
Vol 427-429 ◽  
pp. 438-441
Author(s):  
Wen Fang Li ◽  
Lang Wu ◽  
Lei Xiong
Keyword(s):  
Numerical Simulation ◽  
Thermal Properties ◽  
Northern China ◽  
Solar Heating ◽  
Broad Application ◽  
Collector Plate ◽  
Current State ◽  
Solar Air Collector ◽  
Flat Plate Collector ◽  
Application Prospects

Solar heating has a broad application prospects in northern China. A new corrugated solar air collector within the heat plate holes was designed in this paper, and compared to air collector with a flat-plate collector plate in the same conditions, the current state, temperature distribution of the collector and its efficiency was studied, to identified its thermal performance. Experimental verification showed the experimental results accorded with numerical simulation.

scholarly journals Numerical Simulation of Straight Rib Solar Air Collector

2020 ◽  
Vol 1624 ◽  
pp. 022047
Author(s):  
Xiaofang Yi ◽  
Weili Gu ◽  
Xuepeng Man
Keyword(s):  
Numerical Simulation ◽  
Solar Air Collector

Compactability Analysis of Soil-Rock Mixture

2013 ◽  
Vol 423-426 ◽  
pp. 1001-1005
Author(s):  
Lin Ping Yu ◽  
Zhi Yun Wang
Keyword(s):  
Influencing Factors ◽  
Building Material ◽  
Engineering Properties ◽  
Broad Application ◽  
Compaction Test ◽  
Object Of Study ◽  
Application Prospects

With soil-rock mixture (SRM) as the object of study and compaction test as the means, the paper studies the compactability of the SRM and analyzes the compactability influencing factors and engineering properties after compaction. Studies show that the soil engineering properties of compacted SRM are greatly improved, so it is a building material with broad application prospects.

scholarly journals Three-dimensional numerical simulation of upflow bubbling fluidized bed in opaque tube under high flux solar heating

AIChE Journal ◽  
2018 ◽  
Vol 64 (11) ◽  
pp. 3857-3867 ◽  
Author(s):  
Hadrien Benoit ◽  
Renaud Ansart ◽  
Hervé Neau ◽  
Pablo Garcia Triñanes ◽  
Gilles Flamant ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Fluidized Bed ◽  
Three Dimensional ◽  
Solar Heating ◽  
High Flux ◽  
Bubbling Fluidized Bed

scholarly journals Numerical Simulation of Fracking in Shale Rocks: Current State and Future Approaches

2016 ◽  
Vol 24 (2) ◽  
pp. 281-317 ◽  
Author(s):  
Gabriel Hattori ◽  
Jon Trevelyan ◽  
Charles E. Augarde ◽  
William M. Coombs ◽  
Andrew C. Aplin
Keyword(s):  
Numerical Simulation ◽  
Current State

Numerical Simulation Model of Electrothermal De-Icing Process on Composite Substrate

2020 ◽  
Author(s):  
Xiaofeng Guo ◽  
Zhiqiang Guo ◽  
Qian Yang ◽  
Wei Dong
Keyword(s):  
Heat Transfer ◽  
Numerical Simulation ◽  
Thermal Properties ◽  
Temperature Distribution ◽  
Simulation Model ◽  
Melting Process ◽  
Ice Melting ◽  
Melted Zone ◽  
Composite Substrate ◽  
Cfrp Composite

Abstract A numerical simulation model of electrothermal de-icing process on carbon fiber reinforced polymer (CFRP) composite is conducted to study the effect of thermal properties of the substrate on the ice melting process. A novel melting model which is based on the enthalpy-porosity method is applied to study the transient ice melting process and heat transfer of the de-icing sys-tem. Multi-layered electrothermal de-icing systems including composites with different fiber orientation are used to analyze the effects of orthotropic heat conductivity of the CFRP composite on the ice melting process and heat transfer. Movement of the ice-water interface, the melted zone thickness and the melted zone area on CFRP composite are investigated on the three-dimensional electrothermal de-icing unit. The effects of thermal properties of substrate on the temperature distribution of the ice-airfoil interface are analyzed. The computational results show that the thermal properties of substrates affect the temperature on the ice-airfoil interface, the temperature distribution in the substrate, ice melting area, ice melting rate and ice melting volume significantly. The time that ice starts to melt on the CFRP composite substrate is earlier than that on the metal substrate. However, it takes more time for the ice to melt completely on the ice-CFRP interface than that on the ice-metal inter-face. The orthotropic heat conductivity of CFRP composite results in strong directivity of the melting area on the ice-CFRP in-terface. A ratio parameter is defined to represent the matching degree of substrate materials and geometry model of de-icing system. The simulation model can be applied to study electrothermal de-icing system of nacelle inlet and airfoil made of composite. The results in present work is also helpful to predict the change of temperature during de-icing process and provide guidelines for the optimizing the electrothermal de-icing system to reduce power consumption according to the fiber structure of composite.

Quantum blockchain system

2021 ◽  
pp. 2150343
Author(s):  
Xiao-Jun Wen ◽  
Yong-Zhi Chen ◽  
Xin-Can Fan ◽  
Zheng-Zhong Yi ◽  
Zoe L. Jiang ◽  
...  
Keyword(s):  
Quantum Teleportation ◽  
Secure Communication ◽  
Quantum Computers ◽  
Computing Power ◽  
Broad Application ◽  
Digital Currency ◽  
Blockchain Technology ◽  
Quantum Secure Communication ◽  
Complexity Problem ◽  
Application Prospects

Blockchain technology represented by Bitcoin and Ethereum has been deeply developed and widely used due to its broad application prospects such as digital currency and IoT. However, the security of the existing blockchain technologies built on the classical cryptography depends on the computational complexity problem. With the enhancement of the attackers’ computing power, especially the upcoming quantum computers, this kind of security is seriously threatened. Based on quantum hash, quantum SWAP test and quantum teleportation, a quantum blockchain system is proposed with quantum secure communication. In classical cryptographic theory sense, the security of this system is unconditional since it has nothing to do with the attackers’ computing power and computing resources.

MoS2 nanosheets chemically modified with metal phthalocyanine via mussel-inspired chemistry for multifunctional memristive devices

2021 ◽  
Author(s):  
Qing Yan ◽  
Fei Fan ◽  
Chen Sun ◽  
Mohamed E. El-Khouly ◽  
Hongfei Liu ◽  
...  
Keyword(s):  
Artificial Intelligence ◽  
Metal Phthalocyanine ◽  
Mos2 Nanosheets ◽  
Broad Application ◽  
Chemically Modified ◽  
Application Prospects

Memristive devices with in-memory computing functions have broad application prospects in the field of artificial intelligence. The development of memristive devices that integrate multi-functions of nonvolatile rewritable memory and biomimicking...

Design for New Actuator Based on Electroactive Polymer

2013 ◽  
Vol 579-580 ◽  
pp. 804-807
Author(s):  
Zhong Yao Wu ◽  
Tian Feng Zhao ◽  
Jian Bo Cao ◽  
Shi Ju E ◽  
Chun Xiao Chen
Keyword(s):  
Polymer Material ◽  
Dielectric Elastomer ◽  
Optimal Performance ◽  
Electroactive Polymer ◽  
Good Prospect ◽  
Broad Application ◽  
Design Scheme ◽  
New Type ◽  
Simulation Results ◽  
Application Prospects

Dielectric elastomer is a kind of electroactive polymer material with optimal performance. As actuator material, dielectric elastomer has shown a good prospect. Based on studying the principle of electroactive polymer, a new type of cylindrical actuator was designed. Its 3-D figure and 2-D dimension drawing was finished by UG software. The animation simulation of the actuator was studied. The simulation results verified the feasibility of design scheme. Electroactive polymer will have broad application prospects in the field of actuator.

Sewage Treatment Performance of Biological Aerated Filters with Fe-Containing Compound Clinoptilolite Media

2015 ◽  
Vol 737 ◽  
pp. 579-583
Author(s):  
Hui Mu ◽  
Yu Xiao Zhao ◽  
Min Tian Gao ◽  
Xiao Dong Zhang ◽  
Jie Zhang ◽  
...  
Keyword(s):  
Phosphorus Removal ◽  
Sewage Treatment ◽  
Ammonia Nitrogen ◽  
Ferric Ions ◽  
Pore Connectivity ◽  
Adsorption Effect ◽  
Broad Application ◽  
Treatment Performance ◽  
Natural Clinoptilolite ◽  
Application Prospects

Fe-containing compound clinoptilolite media (Fe-M), prepared with natural clinoptilolite, was applied to be the filter media of BAF, and then the treating performance of sewage by BAFs with Fe-M and ceramsite were investigated. Because Fe-M had relatively larger surface area, better pore connectivity, higher biofilm microbial biomass, and the ion-exchanging and adsorption effect, a higher ammonia nitrogen removal efficiency was obtained in BAF with Fe-M than ceramsite; and higher phosphorus removal in BAF with Fe-M was also realized by the adsorption and precipitation effect of the leaching ferric ions. Fe-M is more suitable to be used as the filter of BAF to treat sewage wastewater than ceramsite, which has a high value of broad application prospects and engineering popularization value.

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