Performance Analysis of Solar Water Heater Using Al2O3 NanoParticle with Plain-Dimple Tube Design

Arun, M.; Barik, Debabrata; Sridhar, Kandi; Vignesh, G.

doi:10.1007/s40799-021-00528-3

Cited by 13 publications

(12 citation statements)

References 22 publications

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“…The density for both the base fluid and the SiO 2 nanoparticles can be calculated using the correlation presented below [9,18]:…”

Section: Governing Equationmentioning

confidence: 99%

“…SiO 2 nanofluid's thermal conductivity was calculated using the Maxwell model, which can be expressed in terms of the following equation [9]:…”

Section: Governing Equationmentioning

confidence: 99%

“…A linear reverse fitting procedure is used to locate the slope and intercepts. The following equations denote the collector's productivity as shown in [9]…”

Section: Governing Equationmentioning

confidence: 99%

“…Solar PTSC performance depends explicitly on normal direct irradiance, fluid inlet temperature, mass flow rate, and outlet temperature (η c , Re, Nu, f , T, and Q g ). The following equation gives us clarity regarding the performance of the solar collector, as shown in [9,18]…”

Section: Uncertainty Analysismentioning

confidence: 99%

“…The solar thermal systems' effectiveness entirely relies on their collectors' performance. Thermal and photovoltaic systems in the solar collectors are utilized to convert sunlight into heat with the help of working fluids like air or water [8,9]. From an economic point of view, flat-plate collectors are used to heat the working fluids.…”

Section: Introductionmentioning

confidence: 99%

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Thermal Performance of a Dimpled Tube Parabolic Trough Solar Collector (PTSC) with SiO2 Nanofluid

Arun

Barik

Sridhar

et al. 2022

International Journal of Photoenergy

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In this research work, dimple texture tubes and silicon dioxide (SiO2) nanofluid were used to analyze the performance parameters of a solar water heater. For this purpose, SiO2 was mixed with deionized (DI) water using an ultrasonic dispersion device to prepare the nanofluids (SiO2/DI-H2O). The size of the nanoparticle was in the range of 10-15 nm. Different volume concentrations of the nanoparticles in the range of 0.1% to 0.5%, in steps of 0.1%, were chosen to prepare the nanofluids to carry out the experiments. Apart from this, computational fluid dynamics (CFD) tool was used to numerically analyze the parameters affecting the performance of the solar water heater, as well as the fluid flow pattern in the dimple texture tube. During the experiment, the mass flow rate of the base fluid (water) varied in the range of 0.5 kg/min to 3.0 kg/min in steps of 0.5 kg/min. The added advantage of the dimple texture tube design led to an increase in turbulence in the flow pattern, resulting 34.2% increase in the convective heat transfer efficiency compared with the plain tube. Among all experimental modules, SiO2/DI-H2O with a mass flow rate of 2.5 kg/min and 0.3% volume concentration gives overall optimized results in absolute energy absorption, gradient temperature, and efficiency of the solar water heater. The efficiency metrics of the experimental results were compared with the simulation results, and it was in the acceptable range with an overall deviation of ±7.42%.

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“…The density for both the base fluid and the SiO 2 nanoparticles can be calculated using the correlation presented below [9,18]:…”

Section: Governing Equationmentioning

confidence: 99%

“…SiO 2 nanofluid's thermal conductivity was calculated using the Maxwell model, which can be expressed in terms of the following equation [9]:…”

Section: Governing Equationmentioning

confidence: 99%

“…A linear reverse fitting procedure is used to locate the slope and intercepts. The following equations denote the collector's productivity as shown in [9]…”

Section: Governing Equationmentioning

confidence: 99%

Section: Uncertainty Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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