The thermal performance of a rectangular loop with a horizontal heating segment and a partly cooling vertical leg is studied. By one-dimensional approach, traditional friction factor and empirical correlation, a modif...The thermal performance of a rectangular loop with a horizontal heating segment and a partly cooling vertical leg is studied. By one-dimensional approach, traditional friction factor and empirical correlation, a modified Grashof number Gr* which turns out to be very important in the description of circulation flow is introduced. A new correlation for Nusselt number of the horizontal heater is obtained and the comparison with experimental raines shows good agreement.展开更多
文摘The thermal performance of a rectangular loop with a horizontal heating segment and a partly cooling vertical leg is studied. By one-dimensional approach, traditional friction factor and empirical correlation, a modified Grashof number Gr* which turns out to be very important in the description of circulation flow is introduced. A new correlation for Nusselt number of the horizontal heater is obtained and the comparison with experimental raines shows good agreement.
