Heat Transfer Enhancement of the Absorber Tube in a Parabolic Trough Solar Collector through the Insertion of Novel Cylindrical Turbulators

被引：0

作者：

Jebbar Y. ^{[1
,2
]}

Fluiful F. ^{[2
]}

Khudhayer W. ^{[3
]}

机构：

[1] Department of Electrical Techniques, Al-Mussaib Technical Institute, Al-Furat Al-Awsat Technical University, Babil

[2] Department of Physics, Collage of Science, University of Kerbala, Karbala

[3] Department of Energy Engineering, Collage of Engineering/Al-Musayab, University of Babylon, Babil

来源：

Fluid Dynamics and Materials Processing | 2024年 / 20卷 / 06期

关键词：

absorber tube; ANSYS; Parabolic trough collector; thermal efficiency; turbulators;

D O I：

10.32604/FDMP.2024.050753

中图分类号：

学科分类号：

摘要：

This study includes an experimental and numerical analysis of the performances of a parabolic trough collector (PTC) with and without cylindrical turbulators. The PTC is designed with dimensions of 2.00 m in length and 1.00 m in width. The related reflector is made of lined sheets of aluminum, and the tubes are made of stainless steel used for the absorption of heat. They have an outer diameter of 0.051 m and a wall thickness of 0.002 m. Water, used as a heat transfer fluid (HTF), flows through the absorber tube at a mass flow rate of 0.7 kg/s. The dimensions of cylindrical turbulators are 0.04 m in length and 0.047 m in diameter. Simulations are performed using the ANSYS Fluent 2020 R2 software. The PTC performance is evaluated by comparing the experimental and numerical outcomes, namely, the outlet temperature, useful heat, and thermal efficiency for a modified tube (MT) (tube with novel cylindrical turbulators) and a plain tube (PT) (tube without novel cylindrical turbulators). According to the results, the experimental outlet temperatures recorded 63.2°C and 50.5°C for the MT and PT, respectively. The heat gain reaches 1137.5 W in the MT and 685.8 W in the PT. Compared to the PT collector, the PTC exhibited a (1.64 times) higher efficiency. © (2024), (Tech Science Press). All rights reserved.

引用

页码：1279 / 1297

页数：18

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