Mathematical Simulation of Heat and Sweat Transfer in Primary School Uniform Using Cotton and
Abstract-
Waste heat _ toddler of primary school body must be dissipated all the time and whenever necessary, aided by evaporation of sweat _ the skin. Clothing has, as one of its main functions, the control of this heat and moisture transfer _ the body to the environment. The physical properties of the fabric’s material and construction (structure & design) as well as the physical activities of the toddler have been considered for the way affecting the thermal properties of the fabrics. In this aspect, a mathematical model has been developed to describe the dynamic heat and moisture transport behavior of the school uniform. Considering heat convection, radiation and vapor transfer diffusity through the toddler‘s garment. The fabric materials and construction comfort is now becoming understood especially when two compromised types of fabrics as such cotton and blended cotton /polyester have been investigated. The blended 50/50Cotton/ polyester fabric construction has shown a very high performance and specifications for heat and moisture transfer .It was found that the cotton/polyester fabric could transfer 150% heat transfer than cotton at the same condition.
Keywords: physical properties of the fabric, physical activities of the toddler sweat and sweat transfer, Porosity and Permeability Properties, wickability, wettability