Mathematical Model to Calculate Heat Transfer in Cylindrical Vessels with Temperature-Dependent Materials

In this article, a mathematical model capable of simulating the heat transfer cylindrical vessels whose properties are dependent on temperature is proposed. As case study, it compares, from an approach their and chemical migration characteristics as function reached, different materials commonly used for manufacture water bottles. More specifically, studied were aluminium, polyethylene terephthalate, polypropylene. The validation consists experiment carried out in laboratory with three bottles each under well simulations using Network Simulation Method to recreate that occurs through walls On other hand, nondimensionalization technique also applied, which allows us obtain weight variables problem, existing relationship between them. Finally, outside 30 °C 50 simulated, common range southern Europe during summer season, initial 20 contained bottle know behaviour what final would be after one hour.