PTFE2200_Experiment10 - Jordan R. Bush PTFE 2200 Date Exp....

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Jordan R. Bush PTFE 2200 Date Exp. Performed: 04/04/2006 Experiment 10: Thermal Transmittance Test Abstract: This experiment explores thermal transmittance of fabrics. Two different types of polyester fabric were chosen: woven, and nonwoven felt. These two were compared for their intrinsic transmittance, intrinsic thermal conductivity, and intrinsic thermal resistance. Materials/Equipment: 10 cm x 10 cm piece of polyester nonwoven felt 10 cm x 10 cm piece of polyester woven fabric Hot Plate with hood and vacuum Ring Gaurd Results/Discussion: This experiment explores thermal resistance in woven polyester versus nonwoven polyester. Thermal resistance is the reciprocal of thermal conductivity which means it is the temperature difference across a unit area of a material of a unit thickness when a unit of heat energy flows through it in a unit of time (Wikipedia). The units for thermal resistance are K·m ² /W. In our experiment our unit area of material is 0.01 m2, the unit thickness for the woven polyester is 20.018 mm and the nonwoven polyester is 10.07 mm, and the unit time is one minute (60 seconds).
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For all three tests run, the same apparatus was used. It consisted of a hot plate and
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This note was uploaded on 11/10/2009 for the course MSE 2200 taught by Professor Wang during the Spring '09 term at Georgia Institute of Technology.

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PTFE2200_Experiment10 - Jordan R. Bush PTFE 2200 Date Exp....

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