Parametric analysis of energy and exergy efficiencies of a hybrid PV/T system containing metallic nanofluids

被引：42

作者：

Diniz, Filipe L. J. ^{[1
,2
]}

Vital, Caio V. P. ^{[1
,3
]}

Gomez-Malagon, Luis A. ^{[1
]}

机构：

[1] Univ Pernambuco, Polytech Sch Pernambuco, BR-50720001 Recife, PE, Brazil

[2] Univ Fed Pernambuco, Postgrad Program Energy & Nucl Technol, Recife, Brazil

[3] Univ Fed Pernambuco, Lab Biomed Opt & Imaging, Recife, Brazil

来源：

RENEWABLE ENERGY | 2022年 / 186卷

关键词：

PV/T system; Exergy; Nanoparticles; Plasmonics; PLATE SOLAR COLLECTOR; TEMPERATURE-DEPENDENCE; THERMAL-CONDUCTIVITY; OPTICAL-PROPERTIES; HEAT-TRANSFER; PERFORMANCE; NANOPARTICLES; ENHANCEMENT; FLUIDS;

D O I：

10.1016/j.renene.2021.12.151

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

For a Si-Photovoltaic (PV) system, the incident solar radiation is not completely used for electricity generation because a fraction of the incident energy is transmitted, and the other is thermalized increasing the temperature of the solar cell. An alternative to minimize this problem is to use direct absorption solar collectors containing plasmonic nanofluids on the top of the PV solar cell to filter the solar radiation. This Photovoltaic/Thermal (PV/T) system has a global energetic efficiency that depends on the optical and physical properties of the nanofluid. Then, a parametric analysis of the energetic and exergetic efficiencies of a PV/T system containing silver and gold nanoparticles was developed, and the parameters set that optimizes the performance of a PV/T system were determined. For example, considering that the global energetic efficiency of a PV system is 21%, for the optimized design of the proposed PV/T system, it increases to a maximum value of 52.45% (16.05% for PV and 36.40% for the thermal system) using aqueous nanofluids containing gold nanoparticles of 10 nm diameter and 9 x 10(-6) volumetric fraction and 0.0060 kg/s mass flow rate. It shows that metallic nanofluids can improve the PV/ T system performance. (C) 2022 Elsevier Ltd. All rights reserved.

引用

页码：51 / 65

页数：15

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