Effect of spherical balls insert in collector tube of parabolic trough collector by considering Al2O3-based water

Chakraborty, Oveepsa; Das, Biplab; Gupta, R.

doi:10.1007/s40430-021-03337-2

Cited by 16 publications

(3 citation statements)

References 58 publications

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“…In this study, thermal efficiency was observed to improve by 15.41% over the normal receiver of PTC. Consideration of a PTC receiver tube fitted with sphericalshaped ball inserts for Al2O3-based water as the heat-carrying medium was done by Chakraborty et al [19]. The outcomes depicted that the maximum amount of 64.25% improved thermal efficiency.…”

Section: Introduction:-mentioning

confidence: 99%

Thermal performance evaluation of parabolic trough collector having different inserts and working with hybrid nanofluid

Chakraborty

Das²,

Gupta

2023

Energy & Environment

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This study emphasizes the comparative investigation of the thermal capacity of parabolic solar trough collectors with spherical-shaped balls and two types of elliptical inserts (longitudinal orientation). Hybrid nanofluid is the heat-carrying liquid obtained by mixing CuO and Al2O3 nanoparticles in distilled water. Analytical investigations are conducted for 1% vol. concentration of hybrid nanoparticles in distilled water for varying proportions. Computational analysis is chosen to obtain thermal as well as flow trends in the tube receiver. The outcomes disclosed that 13.3%, 10.02%, and 16% improvements are noted for thermal efficiency, Nusselt number, and thermal performance index with elliptical inserts of minor diameter 12 mm in the receiver, respectively, than spherical ball inserts. The highest pump work of 35 W is associated with spherical inserts at 0.033 kg/s.

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Section: Introduction:-mentioning

confidence: 99%

Thermal performance evaluation of parabolic trough collector having different inserts and working with hybrid nanofluid

Chakraborty

Das²,

Gupta

2023

Energy & Environment

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“…The expanded global energy need, owing to the fast-growing economies like China and India, has led to an upsurge in the use of fossil fuels in the past decade. [1][2][3] The top 10 countries' per capita energy consumption and total energy utilization are listed in Table 1. Presently, developing countries are mainly running on fossil fuels to fulfill their energy demand.…”

Section: Introductionmentioning

confidence: 99%

Energy, exergy, environment and techno-economic analysis of parabolic trough collector: A comprehensive review

Chakraborty,

Roy,

Debnath

et al. 2023

Energy & Environment

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Inexhaustible energy sources are the focus of the energy industry for meeting the increased need for energy and reducing carbon emissions. Among various alternatives, harnessing solar energy has become a promising choice around the world. Parabolic trough collectors (PTCs) are an effective way to transform radiant energy into thermal energy, as well as electricity. However, these collectors can be improved by refining their design and tweaking the parameters related to thermal behavior. This may be done either by enhancing the surface area or improving the heat transfer coefficient of the heat carrying medium. These kinds of improvements could be achieved by making the use of nanofluids and by using inserts or fins within the collector tube. The current study provides an extensive review of PTCs from the points of view of their design, along with their thermal characteristics. Different types of nanofluids as the working liquid are investigated and discussed to achieve better PTC performance. Inserts within the collector tube and various design approaches, including fins, twisted tubes, U-shaped tubes, coiled wire inserts, and porous twisted tape inserts, are reviewed and discussed in detail. Finally, based on this review, challenges of PTC applications are described and future research recommendations are proposed.

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“…The results show that thermal efficiency of conventional parabolic trough collector was increased by 31% and direct absorption parabolic trough collector increased by 19% using hybrid nanofluid as compared to base fluid. Chakraborty et al [16] studied the effect of inserting spherical balls to the receiver of a parabolic trough collector using Aluminum oxidebased water with a volume fraction of 1.5-4% is considered as the working fluid with flow rates ranging from 0.15 to 0.36 kg/s numerically. The simulations conducted for 5 solar irradiation values ranged from 300 to 1000 W/m2, respectively.…”

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confidence: 99%

Comparative study of advanced exergy analysis of parabolic trough and linear Fresnel collectors

Maghsoudizadeh,

Ameri,

Javaran

2023

Preprint

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Parabolic Trough collectors and Linear Fresnel reflectors are considered the most commonly used types of solar thermal systems. Numerous theoretical and practical research studies have been conducted on these collectors. The aim and the novelty of this research is to investigate and compare the performance of linear Fresnel and parabolic trough collectors from the perspective of advanced exergy analysis in order to determine the main irreversibility sources in each collector component and the potential for improving each component of the collector. The behavior of these two types of collectors in response to changes in solar radiation, collector length, flow rate, and fluid type is also analyzed. For this purpose, commercial collectors (Eurotrough ET100) and (LF-11) were selected for investigation. Simple and improved thermodynamic process methods were used to calculate the internal exergy destruction values for each component. Energy and exergy equations were solved using MATLAB software. The results indicate that the highest internal exergy destruction in both collectors is attributed to the absorber tube, but only a very small portion of it is avoidable. On the other hand, the highest avoidable internal exergy destruction occurs in the concentrator, making it the highest priority for technological improvements.

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Effect of spherical balls insert in collector tube of parabolic trough collector by considering Al2O3-based water

Cited by 16 publications

References 58 publications

Thermal performance evaluation of parabolic trough collector having different inserts and working with hybrid nanofluid

Thermal performance evaluation of parabolic trough collector having different inserts and working with hybrid nanofluid

Energy, exergy, environment and techno-economic analysis of parabolic trough collector: A comprehensive review

Comparative study of advanced exergy analysis of parabolic trough and linear Fresnel collectors

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