“…On the other hand, as a temperature gradient over time, it became necessary to use an oven whose function was to generate heat, which is transferred to the steel and bronze cylinders for a certain time so that afterwards the cooling is carried out with the respective fluid , either air or water. For forced convection in air there will be a fan which increases wind speed, the instrument used to know the variables in this condition was the anemometer to measure both wind velocity and temperature [15]. In addition to the aforementioned, other implements were also needed to facilitate the handling and collection of data such as the thermometer, timer, tweezers, gloves, balance, fan (4), hopper (7) and acrylic tube (5).…”