Thermal performance of hydrophobic α-Al2O3 ceramic membrane for solar-thermal membrane coupling water desalination process

Parabolic trough collector (PTC) is one of the most widespread solar concentration technologies and represents the biggest share of the CSP market; it is currently used in various applications, such as electricity generation, heat production for industrial processes, water desalination in arid regions and industrial cooling. The current paper provides a synopsis of the commonly used sun trackers and investigates the impact of various sun tracking modes on thermal performance of a parabolic trough collector. Two sun-tracking configurations, full automatic and semi-automatic, and a stationary one have numerically been investigated. The simulation results have shown that, under the system conditions (design, operating and weather), the PTC's performance depends strongly on the kind of sun tracking technique and on how this technique is exploited. Furthermore, the current study has proven that there are some optimal semi-automatic configurations that are more efficient than one-axis sun tracking systems. The comparison of the mathematical model used in this paper with the thermal profile of some experimental data available in the literature has shown a good agreement with a remarkably low relative error (2.93%).

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Thermal performance of a novel solar thermal facade system in a hot-summer and cold-winter zone

Solar Energy ◽

10.1016/j.solener.2020.04.050 ◽

2020 ◽

Vol 204 ◽

pp. 106-114 ◽

Cited By ~ 1

Author(s):

Yongga A ◽

Nianping Li ◽

Jibo Long ◽

Yingdong He

Keyword(s):

Thermal Performance ◽

Solar Thermal ◽

Cold Winter

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Fabrication of a COF-5 membrane on a functionalized α-Al2O3 ceramic support using a microwave irradiation method

Chemical Communications ◽

10.1039/c3cc48065h ◽

2014 ◽

Vol 50 (12) ◽

pp. 1462-1464 ◽

Cited By ~ 39

Author(s):

Dandan Hao ◽

Jinna Zhang ◽

Hui Lu ◽

Wenguang Leng ◽

Rile Ge ◽

...

Keyword(s):

Microwave Irradiation ◽

Microwave Irradiation Method ◽

Al2o3 Ceramic ◽

Ceramic Support ◽

Membrane Growth ◽

Α Al2o3

A novel functionalization strategy was developed by using covalent linkers to promote the COF-5 membrane growth on the α-Al2O3 support.

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Research on Molding for Al2O3Ceramic Substrate and its Processing Technic

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.154-155.1397 ◽

2010 ◽

Vol 154-155 ◽

pp. 1397-1400

Author(s):

Zhan Xin Zhang ◽

Hong Kui Hu ◽

Feng Ming Wang ◽

Tao Liu

Keyword(s):

Ph Value ◽

Glass Mold ◽

Ceramic Substrate ◽

Al2o3 Powder ◽

Al2o3 Ceramic ◽

Α Al2o3

By adopting technique for forming colloid to manufacture Al2O3 Ceramic Substrate, the effect of aggregation reaction which is caused by pH value, temperature for shaping, evocating agent and some other factors of slurry has been researched in the processes for shaping Substrate. The result addresses that the substrate with well-proportioned in density, contractibility and over 78MPa intensity is able to be made while the pH is about 9, the temperature is between 60 and 70°, the shaping duration is no more than 30 minutes, in glass mold, and with 120 item undersize α-Al2O3 powder. To dunk the desiccating substrate for 20 minutes, it would gain the good flexibility, moreover, it is able to be cut. After it is desiccated again, it becomes firm again, this kind of characteristic can be repeated numbers of times.

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