Abstract
To aid in the development of advanced thermal insulating materials and systems, Lydall, Inc. Manning Nonwovens Division has acquired acalorimeter. The calorimeter is specially-designed to measure the thermal conductivity of high-efficiency insulating materials and multilayer insulation systems under various operating conditions. A description of the apparatus is included. The calorimeter has the capabilities of measuring thermal conductivity in the temperature range of 10K to 300K and under insulating vacuum levels ranging from 10 −2 torr (1.33 Pa) through 10 −8 torr (1.33×10 −6 Pa). The calorimeter has been calibrated over its operating range and measurements have been made on several insulation systems to quantify thermal performance. Details of the calibration process will be presented. Preliminary measurements results demonstrate that the capabilities of this system will enhance the development of advanced thermal insulation materials and systems.
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