Abstract
In order to evaluate the effects of different dimensional factors on radiant heat coming downward on to an infinitesimal horizontal surface concerning the radiant heat load of a real swine, the authors determined dimensions of cylinders which gave the same values as radiant-interchange configuration factors for swine to inside roof surfaces of gable roofed barns, and compared configuration factors for cylinders with ones for infinitesimal horizontal surfaces.
Radiant-interchange configuration factors for infinitesimal horizontal surfaces to inside roof surfaces were about 2.8-3.0 times as large as those for cylinders. And configuration factors for infinitesimal horizontal surfaces to the sky were about 0.6-0.8 times as large as those for cylinders.
