Hybrid Nanofluid in a Direct Absorption Solar Collector: Magnetite vs. Carbon Nanotubes Compete for Thermal Performance

被引：13

作者：

Struchalin, Pavel G. ^{[1
]}

Kuzmenkov, Dmitrii M. ^{[2
]}

Yunin, Vladimir S. ^{[2
]}

Wang, Xinzhi ^{[3
]}

He, Yurong ^{[3
]}

Balakin, Boris V. ^{[1
,2
]}

机构：

[1] Western Norway Univ Appl Sci, Dept Mech & Marine Engn, Inndalsveien 28, Bergen, Norway

[2] Natl Res Nucl Univ, Inst Nucl Phys & Engn, Moscow Engin Phys Inst, Kashirskoe Highway 31, Moscow, Russia

[3] Harbin Inst Technol, Sch Energy Sci andEngineering, Heilongjiang Key Lab New Energy Storage Mat & Proc, Harbin, Peoples R China

来源：

ENERGIES | 2022年 / 15卷 / 05期

关键词：

direct absorption solar collector; hybrid nanofluid; carbon nanotubes; magnetic nanofluid; iron oxide;

D O I：

10.3390/en15051604

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The paper presents the experimental measurements of thermal efficiency of a tubular direct absorption solar collector (DASC) with a hybrid nanofluid based on magnetite (Fe3O4) and multi-walled carbon nanotubes (MWCNT). The volumetric concentration of Fe3O4 and MWCNT was 0.0053% and 0.0045%, respectively. The experiments were carried out for the flow rates of 2-10 L/min and a temperature difference up to 20 & LCIRC;C between the environment and the DASC. The performance of the DASC with a hybrid nanofluid was in the range of 52.3-69.4%, which was just beyond the performance of the collector with surface absorption. It was also found that using a MWCNT-based nanofluid with an equivalent total volumetric concentration of particles (0.0091%), the efficiency was 8.3-31.5% higher than for the cases with the hybrid nanofluid.

引用

页数：8

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