Effects of fabric thickness and material on apparent 'wet' conductive thermal resistance of knitted fabric 'skin' on sweating manikins
| Autor: | Wen Shi, Ming Fu, Dandan Lai, Faming Wang |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Hot Temperature 010504 meteorology & atmospheric sciences Physiology Thermal resistance Polyesters Sweating 02 engineering and technology Manikins 01 natural sciences Biochemistry Body Temperature Clothing parasitic diseases Humans Cotton Fiber Composite material Electrical conductor 0105 earth and related environmental sciences Empirical equations integumentary system Textiles technology industry and agriculture Humidity 021001 nanoscience & nanotechnology 0210 nano-technology General Agricultural and Biological Sciences Developmental Biology |
| Zdroj: | Journal of thermal biology. 70 |
| ISSN: | 0306-4565 |
| Popis: | Currently, no published standard and research work have addressed the basic requirements on knitted fabric 'skin' on sweating manikins. In this study, we performed 252 experiments to investigate the influence of fabric thickness and material on the apparent 'wet' conductive (or effective) thermal resistance of the fabric 'skin' using a 'Newton' manikin. Four types of cotton fabric 'skin' (fabric thickness: 0.38, 0.54, 0.92 and 1.43mm) and three types of polyester fabric 'skin' (fabric thickness: 0.41, 0.54 and 1.0mm) were selected and their 'wet' conductive thermal resistance was determined. Empirical equations were also developed for each fabric 'skin' to predict wet fabric 'skin' surface temperatures. It was found that both fabric thickness and material significantly affected the apparent 'wet' conductive thermal resistance. Clothing total evaporative resistance determined using thin fabric 'skin' (e.g., CO1, CO2) was normally lower than that determined using thick fabric 'skin' (e.g., CO4). Besides, synthetic fabric 'skin' tended to have a larger apparent 'wet' conductive thermal resistance than the cotton fabric 'skin' due to a smaller amount of moisture contained. Hence, there is a great need to standardize the fabric 'skin' to eliminate the influence of fabric 'skin' on the measurement of clothing evaporative resistance by means of a sweating manikin. |
| Databáze: | OpenAIRE |
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