STUDY OF LOCAL HEAT TRANSFER AT THE MELTING OF SINGLE SPHERICAL PARTICLE An experimental study of local heat transfer at the melting of single spherical particles into a flowing liquid is presented in this paper. Local heat transfer coefficient at the particle surface, and local Nusselt number were determined using the photographical technique. Ice-spherical particles having 0,045 m in diameter, and distillated water were used in experiments. The investigations were carried out at the temperature of 303 K at 1 atm pressure, and at several values of water flow velocity ranging from 0,0971 to 0,2279 m/s. The results outline the influence of Reynolds number and proces duration on local Nusselt number.
Keywords: heat transfer, local heat transfer coefficient, liquid – solid heat transfer