Convective heat transfer performance of solar salt in an inclined circular tube

Dong, Xinyu; Bi, Qincheng; Cheng, Xiang; Yao, Fan

doi:10.1016/j.applthermaleng.2020.115349

Cited by 6 publications

(3 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the friction coefficient, the error was lower than ±2%. This is proven again in another study by Dong et al [5] where good agreement is observed between the experimental data and Gnielinski's correlation for Solar Salt in terms of Nusselt number. The same observation is made by Mwesigye and Yılmaz [6] when they compered the numerical results of Nusselt and friction factor with the Gnielinski and Petukhov's correlation.…”

Section: Introductionsupporting

confidence: 77%

“…Promising options of HTFs are HITEC Salt (53% KNO 3 -40% NaNO 2 -7% NaNO 3 , wt. %) and Solar Salt (40% KNO3-60% NaNO3, mol.%), which both are nitrate-based molten salts [5]. Development of high-temperature heat exchangers is paramount especially for applications in hydrogen and solar energies.…”

Section: Introductionmentioning

confidence: 99%

“…Some cases of research focused on evaluating the authenticity of existing heat transfer correlations on these new fluid media. Dong et al [5] investigated the validity of wellknown classical correlations and four literature convective heat transfer correlations for a turbulent flow and heat transfer of molten Solar Salt in a circular pipe. They performed experiments for the Reynolds number of between 10,000 and 36,000 and Prandtl number of 4.75 and 8 and found that as the result of the incline, the bottom of the cylinder has the highest Nusselt and the best heat transfer, while the Nusselt is lowest at the top of the cylinder.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Investigation Of Turbulent Convective Heat Transfer Of Molten Salt Flow Inside A Single-Bend Circular Pipe

Armoudli¹,

Jianu²

2021

Progress in Canadian Mechanical Engineering. Volume 4

View full text Add to dashboard Cite

This article investigates the coupled flow and heat transfer behavior of two different nitrate molten salts, i.e., Solar Salt, and Hitec, as they flow in a single-bend of 180 degrees horizontal circular pipe. The internal turbulent flow of these two salts is investigated to heat a part of a high-temperature heat exchanger which will be used in a sustainable thermochemical cycle for hydrogen production. Governing conditions for the high-temperature turbulent flow of molten salts are derived based on the previously published and thoroughly validated articles, applied on the geometry and boundary conditions of the single-bended pipe and then compared with well known, experimentally validated convective heat transfer correlations. This research shows that the bend causes an intense mixing in the flow due to separation. Induced turbulence affects the heat transfer downstream of the bend causing the Nusselt number and the friction factor to increase substantially. Overall, the heat transfer increases at the cost of an increased friction factor and the resultant pressure drops after the bend.

show abstract

Section: Introductionsupporting

confidence: 77%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation