The apparatus consists of a small test sphere. This sphere is heated by a hot bath, till the steady state is reached and then it is coolled in air or water / oil. During both, heating and cooling of sphere, temperature of sphere is a function of time and hence, it is a unsteady smore...
Extended surface or Fins are used to increase the heat transfer rate from surface to fluid wherever it is not possible to increase the value of the surface heat transfer coefficient. The design of fins therefore requires knowledge of temperature distribution in fin. The main objemore...