Abstract
A heat-transfer analysis of a nonscattering dielectric coating is presented to show the effect of the temperature distribution on the thermal emission characteristics. The problem is formulated using radiation transfer theory for an absorbing, emitting, gray coating with specular surfaces on a metallic substrate. Heat transfer by simultaneous conduction and radiation is considered within the coating. Convection and incident radiation at the coating surface are also included. Results are presented for the temperature distribution in the coating and the thermal emission characteristics. The results indicate that the emission can vary considerably with the temperature distribution. It is shown that a linear temperature approximation can be used to estimate the emission characteristics for the range of parameters investigated. Nomenclature a = variable in Eq. (25), TO/M b = variable in Eq. (25), 1 — p\e c = variable in Eq. (25), 1 + pie E2 = exponential integral function EI(T ) = r1 «P( JO M . h* = dimensionless heat-transfer coefficient, , h = convective heat-transfer coefficient at the coating surface
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
