Characterization of Thermal Radiative Properties of Nanofluids for Selective Absorption of Solar Radiation

被引：62

作者：

Zhu, Qunzhi ^{[1
]}

Cui, Yun ^{[1
]}

Mu, Lijuan ^{[1
]}

Tang, Liqing ^{[1
]}

机构：

[1] Shanghai Univ Elect Power, Sch Energy Sources & Environm Engn, Shanghai 200090, Peoples R China

来源：

INTERNATIONAL JOURNAL OF THERMOPHYSICS | 2013年 / 34卷 / 12期

基金：

中国国家自然科学基金;

关键词：

Nanofluids; Reflectance; Solar energy; Thermal radiative properties; Transmittance; CONDUCTIVITY; ENHANCEMENT;

D O I：

10.1007/s10765-012-1208-y

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Nanofluids are used in device cooling, heat pipes, and other applications. Researchers in thermal engineering have extensively investigated the thermal conductivity and enhanced heat transfer of nanofluids. This study investigates the thermal radiative properties of nanofluids and discusses the characteristics of the selective absorption of solar radiation of nanofluids. Several kinds of nanoparticles are prepared using the two-step method, and the effects of dispersants, mass fractions, and nanoparticle materials on the radiative properties of nanofluids within the wavelength range of 300 nm to 2500 nm are analyzed. Dispersants can reduce the transmittance of water by < 5 % within the visible spectrum. ZnO- and AlN-water nanofluids selectively absorb solar radiation, whereas ZrC- and TiN-water nanofluids absorb most of the solar radiation applied to them. The findings of this study are beneficial to research on the application of nanofluids in solar energy utilization.

引用

页码：2307 / 2321

页数：15

共 24 条

[1] Adachi S., 1999, Optical Constants of Crystalline and Amorphous Semiconductors
[2] Allen D.W., 2002, NIST SPECIAL PUBLICA, V250-69
[3] [Anonymous], 1998, Handbook of Optical Constants of Solids
[4] [Anonymous], 2003, G17303 ASTM
[5] Bohren C. F., 1998, ABSORPTION SCATTERIN, DOI 10.1002/9783527618156
[6] Das SK, 2008, NANOFLUIDS: SCIENCE AND TECHNOLOGY, P1
[7] Anomalously increased effective thermal conductivities of ethylene glycol-based nanofluids containing copper nanoparticles
Eastman, JA
Choi, SUS
Li, S
Yu, W
Thompson, LJ
[J]. APPLIED PHYSICS LETTERS, 2001, 78 (06) : 718 - 720
[8] Enhanced thermal conductivity through the development of nanofluids
Eastman, JA
Choi, US
Li, S
Thompson, LJ
Lee, S
[J]. NANOPHASE AND NANOCOMPOSITE MATERIALS II, 1997, 457 : 3 - 11
[9] Thermal properties of carbon black aqueous nanofluids for solar absorption
Han, Dongxiao
Meng, Zhaoguo
Wu, Daxiong
Zhang, Canying
Zhu, Haitao
[J]. NANOSCALE RESEARCH LETTERS, 2011, 6 : 1 - 7
[10] Measuring thermal conductivity of fluids containing oxide nanoparticles
Lee, S
Choi, SUS
Li, S
Eastman, JA
[J]. JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 1999, 121 (02): : 280 - 289

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