Experimental and CFD analysis of dimple tube parabolic trough solar water heater with various nanofluids
Küçük Resim Yok
Tarih
2024
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer Science and Business Media Deutschland GmbH
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
A solar collector is a device used to absorb energy from the sun by collecting solar radiation and turning it into electricity or heat. The material type and coating of a solar collector are utilized to enhance solar energy absorption. This research combines experimental and computational methods to examine the performance of a parabolic-type plate solar water heater (PTSWH). The nanoparticles-DI water at a rate of mass flow (MFR) of 0.5–3.0 kg/min in 0.5 kg/min increments were used in a tube-in-tube heat exchanger featuring dimpled inner tubes with a pressure-to-diameter (P/D) ratio of 3. The researchers examined the fluid flow patterns and heat transfer efficiency in a dimple texture tube using nanoparticles of TiO<inf>2</inf>, Al<inf>2</inf>O<inf>3</inf>, CuO, and SiO<inf>2</inf> with a size range of 10–15 nm and a volume concentration (VC) of 0.1–0.5% in increments of 0.1%. Computational Fluid Dynamics (CFD) was used to explore and verify the impact of nanoparticle concentration on the PTSWH. It was revealed that CuO /DI-H<inf>2</inf>O at a nanoparticles VC of 0.3% and a MFR of 2.5 kg/min yielded the best PTSWH performance. With a nanoparticle concentration of 0.3% and MFR of 2.5 kg/min, the efficiency of PTSWH was increased by approximately 34.3% for TiO<inf>2</inf>, 32.3% for Al<inf>2</inf>O<inf>3</inf>, 38.4% for CuO, and 36.4% for SiO<inf>2</inf>. The results also show that the solar water heater’s thermal efficiency rose steadily with the rise in MFR. At a MFR of 2.5 kg/min, Cu/DI-H<inf>2</inf>O was found to have a higher Nusselt number than TiO<inf>2</inf>/DI-H<inf>2</inf>O, Al<inf>2</inf>O<inf>3</inf>/DI-H<inf>2</inf>O, and SiO<inf>2</inf>/DI-H<inf>2</inf>O, respectively, by 10.5%, 8.2%, and 5%. TiO<inf>2</inf>/DI-H<inf>2</inf>O, Al<inf>2</inf>O<inf>3</inf>/DI-H<inf>2</inf>O, Cu/DI-H<inf>2</inf>O, and SiO<inf>2</inf>/DI-H<inf>2</inf>O nanoparticle-coated dimple texturing tubes all had lower friction coefficients than a plain tube did. Finally, a comparison was made between the experimental and simulated data, and the overall variation of ± 3.1% was found to be within an acceptable range. © 2025 Elsevier B.V., All rights reserved.
Açıklama
Anahtar Kelimeler
Computational Fluid Dynamics, Dimple Texture Tube, Heat Exchanger, Nanoparticles Concentration, Parabolic-type Plate Solar Water Heater, Alumina, Aluminum Oxide, Flow Of Fluids, Heat Exchangers, Heat Transfer Performance, Nanofluidics, Silica, Sio2 Nanoparticles, Solar Energy, Solar Water Heaters, Textures, Tio2 Nanoparticles, Titanium Dioxide, Tubes (components), Dimple Texture Tube, Experimental Fluids, Fluid Dynamic Analysis, Fluid-dynamic Analysis, Nanoparticle Concentrations, Parabolic Trough, Parabolic-type Plate Solar Water Heater, Parabolics, Performance, Volume Concentration, Computational Fluid Dynamics
Kaynak
Applied Nanoscience (Switzerland)
WoS Q Değeri
Scopus Q Değeri
Q1
Cilt
14
Sayı
2
