ABSTRACT
The equations that govern the exchange of radiant energy among surfaces have been solved for a wide range of technically interesting situations. These problems may be classified into three general categories. These include: situations in which the radiant interchange is analyzed without consideration of other modes of heat transfer, and situations in which heat conduction within the participating surfaces interacts with the radiant interchange. These also include: situations in which convection in the gas that occupies the space between the participating surfaces interacts with the radiant interchange. The chapter discusses the boundary layer and pipe flow problems by way of illustrating the interaction between radiation and convection. Closely related to the radiant interchange in cavities is the transport of radiant energy through passages, both ends of which are open to radiating environments. In atmosphere-free space, radiation is a primary mechanism for transferring waste heat from space vehicles.
