Journal of Material Sciences & Engineering

Department of Energy Research and Development, University of Nigeria, Nsukka, Enugu State, Nigeria

Publications

• Review Article   
  Mixed Convection Heat Transfer in an Absorber Tube with Non-uniform Heat Flux Distributions Boundary for a Linear Fresnel Solar Thermal Collector: Review Work
  Author(s): Izuchukwu F. Okafor* and Bappah Adam Umar
  
  This work reviewed the mixed convective heat transfer in absorber tubes similar to that of a linear Fresnel solar collector. Studies on the experimental and numerical simulations on linear Fresnel solar thermal collectors were reviewed to establish the gaps in the literature for further studies that could improve the overall performance of a linear Fresnel solar collector. The solar heat flux impinges on the absorber tubes of a linear Fresnel solar collector, from underneath independent of the position of the sun. This resulted in a circumferential non-uniform heat flux distributions around the tube wall, contrary to previous studies which assumed uniform heat flux boundaries for convenience. A number of studies had investigated mixed convection heat transfer in horizontal circular tubes for uniform heat flux distribution boundary symmetrical to the direction of the gravitational fiel.. Read More»
  DOI: 10.37421/ 2169-0022.2023.12.621

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