CALCULATION OF THE THERMOHYDRAULIC EFFICIENCY OF POROUS DIRECT-FLOW STEAM-GENERATING CHANNELS

Results of calculation of the effi ciency of porous direct-fl ow steam-generating channels in the transition region of motion of a heat-transfer agent with boundary conditions of the fi rst kind have been presented. The obtained data have been compared with the results of calculations for a smooth-walled tube. It has been shown that positive values of geometric coeffi cients of effi ciency of such a channel can be obtained when water is used as the heat-transfer agent. For the investigated parametric range of the indicated channels, no positive values of energy coeffi cients of effi ciency were found. The dependences of the effi ciency coeffi cients of a porous model channel on its basic operating-structural parameters have been analyzed.
   
Author:  A. P. Lukisha
Keywords:  thermohydraulic effi ciency, porous steam-generating channels, heat-transfer agent, water, boundary conditions of the fi rst kind
Page:  1096