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Josua P. Meyer

Researcher at University of Pretoria

Publications -  565
Citations -  15470

Josua P. Meyer is an academic researcher from University of Pretoria. The author has contributed to research in topics: Heat transfer & Heat transfer coefficient. The author has an hindex of 56, co-authored 543 publications receiving 12316 citations. Previous affiliations of Josua P. Meyer include University of Göttingen & University of Würzburg.

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R-22 and Zeotropic R-22/R-142b Mixture Condensation in Microfin, High-Fin, and Twisted Tape Insert Tubes

TL;DR: In this paper, a series of experiments were performed to determine the sectional and average heat transfer coefficients of the zeotropic refrigerant mixture R-22/R-142b.
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Heat Transfer Coefficients During Condensation of the Zeotropic Refrigerant Mixture HCFC-22/HCFC-142b

TL;DR: In this paper, heat transfer coefficients during condensation of zeotropic refrigerant mixtures were obtained at mass fractions of 90 percent/10 percent, 80 percent/20 percent, 70 percent/30 percent, 60 percent/40 percent, and 50 percent/50 percent for pure HCFC-22 in a horizontal smooth tube at a high saturation pressure of 2.43 MPa.
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Three-dimensional analysis and numerical optimization of combined natural convection and radiation heat loss in solar cavity receiver with plate fins insert

TL;DR: In this paper, the numerical study and optimization of combined laminar natural convection and surface radiation heat transfer in solar cavity receiver with plate fins was presented, and the overall cavity efficiency marginally increased by approximately 2% with the insertion of fin plates although the convective heat loss was suppressed by about 20%.
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Heat Transfer and Pressure Drop Characteristics of Smooth Horizontal Tubes in the Transitional Flow Regime

TL;DR: In this article, the authors measured heat transfer and pressure drop characteristics in smooth horizontal tubes using different types of inlets, including hydrodynamically fully developed, square-edged, re-entrant, and bellmouth.
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Experimental investigation into heat transfer performance of water-based magnetic hybrid nanofluids in a rectangular cavity exposed to magnetic excitation

TL;DR: In this article, the effect of magnetic excitation and hybrid nanofluid on the thermo-convection characteristics in enclosures was investigated and the results showed that without magnetic excitations, the average Nusselt number (Nuav) were observed to augment as Rayleigh number (Ra) and ΔT increased.