Numerical analysis of evacuated tube solar collectors using nanofluids

被引：40

作者：

Mercan, Muhammed ^{[1
]}

Yurddas, Ali ^{[1
]}

机构：

[1] Manisa Celal Bayar Univ, Dept Mech Engn, TR-45140 Manisa, Turkey

来源：

SOLAR ENERGY | 2019年 / 191卷

关键词：

Evacuated tube solar collectors; Nanofluid; CFD; Boussinesq approximation; HEAT-TRANSFER ENHANCEMENT; LAMINAR MIXED CONVECTION; GLASS VACUUM TUBES; THERMAL PERFORMANCE; HORIZONTAL TUBE; WATER-HEATERS; FORCED-CONVECTION; FLOW; CONDUCTIVITY; MODEL;

D O I：

10.1016/j.solener.2019.08.074

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：

In this study, numerical analysis of water and water based nanofluids in ETSCs were made by using CFD. Validation of the study was made by comparing an experimental and two different numerical results. Thanks to the analyzes, the effects of water based Al2O3-H2O and CuO-H2O nanofluids compared to water on heat transfer for different volume fractions of nanoparticle, different collector angles, different mass flow rates and different numbers of evacuated tubes were examined. According to these parameters, the thermal and hydraulic statuses of the collector were examined by using the Boussinesq approximation and the tank outlet temperatures were determined. It has been determined that the use of nanofluid in ETSC systems has improved heat transfer and the best improvement was obtained with CuO-H2O nanofluid.

引用

页码：167 / 179

页数：13

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