APPLICATION OF THE TAGUCHI METHOD IN DETERMINING THE EFFICIENCY OF DIFFERENT MATERIALS IN RETAINING HEAT IN A THERMOS BOTTLE

<p style="text-align: justify;">Heat transfer is a key process that occurs in everyday life, whether it  involves maintaining the warmth of the food, or various industrial  processes. This term includes three primary mechanisms of transfer:  conduction, convection, and radiation. To minimize heat loss or retain  coldness, different insulating materials are used. This paper examines the  effectiveness of different materials in insulating a thermos bottle. The  experiment involved three types of insulation methods: a standard vacuum  thermos bottle, a vacuum thermos bottle with added mineral wool, and a  vacuum thermos bottle with added cardboard. The ability of each model to  maintain the initial temperature of the liquid was analyzed at three different <br />temperatures (5 °C, 40 °C, and 90 °C) over time intervals of half an hour,  one, and two hours. The objective of the study was to determine the optimal  conditions for maintaining heat or coldness, using the Taguchi method for factor analysis and optimization. </p>