Solar radiation and lower gravitational effects on wave oscillations in heat transfer along magnetic-driven porous cone in the presence of Joule heating

Boujelbene, Mohamed; Albouchi, Fethi; Ullah, Zia; Aldhabani, Musaad S.; Alsulami, Samirah H.; Hassan, Ahmed M.

doi:10.1016/j.csite.2023.103782

Cited by 4 publications

(2 citation statements)

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“…and a temperature of 60 °C were prepared by two-step method and checked for their stability with a Nano ZS MPT-2 Zetameter. The properties of the suspensions were experimentally examined for their flow rates in the range 𝑉 Using renewable energy sources in a diverse European climate [64] and other potential limitations and challenges in studying solar installation are broadly discussed in [65][66][67].…”

Section: Discussionmentioning

confidence: 99%

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Economic and Exergy Analysis of TiO2 + SiO2 Ethylene-Glycol-Based Hybrid Nanofluid in Plate Heat Exchange System of Solar Installation

Wciślik,

Taler

2024

Energies

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This paper concerns an economic and exergetic efficiency analysis of a plate heat exchanger placed in a solar installation with TiO2:SiO2/DI:EG nanofluid. This device separates the primary circuit—with the solar fluid—and the secondary circuit—in which domestic hot water flows (DHW). The solar fluid is TiO2:SiO2 nanofluid with a concentration in the range of 0.5–1.5%vol. and T = 60 °C. Its flow is maintained at a constant level of 3 dm3/min. The heat-receiving medium is domestic water with an initial temperature of 30 °C. This work records a DHW flow of V˙DHW,in = 3–6(12) dm3/min. In order to calculate the exergy efficiency of the system, first, the total exergy destruction, the entropy generation number Ns, and the Bejan number Be are determined. Only for a comparable solar fluid flow, DHW V˙nf=V˙DHW 3 dm3/min, and concentrations of 0 and 0.5%vol. is there no significant improvement in the exergy efficiency. In other cases, the presence of nanoparticles significantly improves the heat transfer. The TiO2:SiO2/DI:EG nanofluid is even a 13 to 26% more effective working fluid than the traditional solar fluid; at Re = 329, the exergy efficiency is ηexergy = 37.29%, with a nanoparticle concentration of 0% and ηexergy(1.5%vol.) = 50.56%; with Re = 430, ηexergy(0%) = 57.03% and ηexergy(1.5%) = 65.9%.

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Section: Discussionmentioning

confidence: 99%

“…Furthermore, the costs associated with the electrical energy required to pump the nanofluids are, therefore, negligible. Using renewable energy sources in a diverse European climate [64] and other potential limitations and challenges in studying solar installation are broadly discussed in [65][66][67].…”

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confidence: 99%