Analysis of Overall Heat Transfer Coefficient of Composite Panels for Thermal Insulation

Abstract

Heat infiltration through the external wall of refrigerated vehicles has been a concern to food industries considering high thermal load required to sustain unbroken cold chain. In this research, experiments were carried out with known fibres contents laid out at various orientations and the effect on the heat transfer measured. The results indicate that the estimated overall heat transfer coefficient of the composite reinforced with 10%wt. of fibre at 0o orientation (G10E) offers the lowest U value of 0.386950 W/m2K and 0.196680 W/m2K for 50 mm and 100 mm insulation thicknesses respectively. The effect of fiber orientation in the composite panel in energy saving was to a large extent minimal when compared to the un-oriented composite panel

Overall Heat Transfer Coefficient of Functionally Graded Hollow Cylinder

“…Because of these reasons, heat transfer rate along the cylinder wall is widely investigated [8][9][10][11]. Besides, overall heat transfer coefficient of composite panels is investigated for thermal insulation and the effect of fiber orientation in the composite panel for energy saving is emphasized [12]. However, there is not any practical study on calculation of the overall heat transfer coefficient for the FGCs in the case of steady state heat transfer.…”