Method to calculate thermal load of a CCL body

By measuring point temperature on outer surface of a canister launcher, the corresponding point temperature on inner surface, average heat flux through cylinder wall, the possible highest temperature on outer surface were calculated out. With a group point temperatures along cylinder wall, a polynomial fitness method was applied to deduce the distribution function of heat flux along cylinder wall, and general heat absorption quantity and absorbed heat energy were estimated out of a canister body by integrating the distribution function. This method can be used in engineering designs practically.