During a testing of a insulating fabric for winter clothing, the fabric is wrapped over a cylindrical dummy of 60 cm diameter. The surface temperature of the inner surface of the fabric (and hence that of the dummy) is kept at 37°C. The fabric is 2 cm thick and has a thermal conductivity of 0.04 W/m-K. The test chamber provides a strong flow of cold air at -15°C outside the fabric-wrapped dummy. The convection coefficient of the airflow around the fabric is 18 W/m²K. What is the heat flux from the dummy to the air through the fabric under steady conditions? Neglect radiation. 97 W/m² 2

During a testing of a insulating fabric for winter clothing, the fabric is wrapped over a cylindrical dummy of 60 cm diameter. The surface temperature of the inner surface of the fabric (and hence that of the dummy) is kept at 37°C. The fabric is 2 cm thick and has a thermal conductivity of 0.04 W/m-K. The test chamber provides a strong flow of cold air at -15°C outside the fabric-wrapped dummy. The convection coefficient of the airflow around the fabric is 18 W/m²K. What is the heat flux from the dummy to the air through the fabric under steady conditions? Neglect radiation. 97 W/m² 2

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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