TY - JOUR TI - Analysis of heat transfer and factors affecting the thermal propertieson rib 1x1 knitwear AU - Pešić, Marija AU - Petrović, Vasilije AU - Ćirković, Nenad AU - Stepanović, Jovana T2 - Industria Textila AB - Clothing comfort is very important feature which is considered as a result of different process of heat exchange between human body, clothing and environment. The purpose of this paper is to analyse the impact of clothing insulation on the heat transfer. The measurements were carried out on commercially 1x1 RIB knitted fabrics used for the production of next-to-skin shirts. The one group of samples are made from 100% cotton yarn and another with 96% cotton and 4%lycra. It is noticed that knitted material composition affected the change in heat resistance. Also, this paper presents and verifies the correlation between the measured values of thermal resistance (Rct) and the knitwear thickness (dpl), the covering factor (K), the porosity of the twists (e) and the surface coefficient (dp). Based on these results, a mathematical model for calculating thermal resistance is proposed. Comparing the results obtained with the proposed equation and the measured results, we can see that the deviations are minimal. The highest deviation for sample C4 is 0.05%,while the largest deviation for sample CL4 is 4.6%. DA - 2021/09/01/ PY - 2021 DO - 10.35530/IT.072.04.1802 DP - DOI.org (Crossref) VL - 72 IS - 04 SP - 361 EP - 367 SN - 12225347 UR - http://www.revistaindustriatextila.ro/images/2021/4/03%20MARIJA%20PESIC%20Industria%20Textila%204_2021.pdf Y2 - 2021/09/08/04:28:47 ER -