Lab 10 - 1 Thermal Transmittance and Resistance Laura...

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1 Thermal Transmittance and Resistance Laura Hughey Georgia Institute of Technology
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2 ABSTRACT In this lab, a Thermolabo machine was used to explore the thermal behavior of two different materials. Both samples were made of 100% polyester, however one was a non-woven felt and the other a woven fabric. Values of the power consumed by each sample were recorded and the thermal transmittance and resistance were calculated.
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3 MATERIALS AND EQUIPEMENT Thermolabo II machine 10 cm x 10 cm piece of non-woven felt 10 cm x 10 cm piece of polyester woven fabric Hot plate with hood and vacuum EXPERIMENTAL PROCEDURE To begin, the Thermolabo was set to supply enough energy to the hotplate to maintain a temperature of 36°C. The guard plate was heated to 36.2°C to help maintain the correct temperature. The hot plate temperature and the room temperature were then recorded. After one minute, the amount of energy required to keep the hot plate at the same temperature was recorded as found on the Thermolabo device. This value is the power consumed. This process was then repeated two additional times without any polymeric material present on the hotplate.
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