Conjugate Radiation and Convection Heat Transfer Analysis in Solar Cooker Cavity Using a Computational Approach

The heat loss caused by radiation and persistently laminar natural convection in a solar cooker cavity that has rectangular or trapezoidal are computationally explored this paper. hot bottom the adiabatic side wall both taken into account. Two possibilities considered for top wall: first, cold wall, and, second, losses from wind-induced radiation. parameters of various depth cavities have been investigated along with variety external transfer coefficient values above glass surface were simulated. emissivity surface, absolute temperature ratio, on geometries, also calculated. Analysis cavity’s flow pattern isotherms at different depths conducted, it is discovered total rate increases as wall’s emissivity, Rayleigh number, Nusselt number all increase. While monotonically, convective rates shift slightly these rise emissivities bottom, opposite occurs when Ra same emissivity. Furthermore, aspect ratio increases, overall decreases. A faster than parameters. Generic empirical correlations developed average concerning influencing