4. A bilayer polymer slab (1.2m long, 1.4m wide, 5 cm thick) is placed on a hot plate, which keeps the side of the slab touching the hot plate at 105C. The thermal conductivity of Layer 1 (2 cm thick) is 0.44 W/mK and the thermal conductivity of Layer 2(3 cm thick) is 0.67 W/m K. If the air surrounding the slab is 27 C and the convective heat transfer coefficient between the top of the slab and the air is 20 W/m²K. What is the rate of heat transfer from the side of the slab touching the hot plate to the air?
4. A bilayer polymer slab (1.2m long, 1.4m wide, 5 cm thick) is placed on a hot plate, which keeps the side of the slab touching the hot plate at 105C. The thermal conductivity of Layer 1 (2 cm thick) is 0.44 W/mK and the thermal conductivity of Layer 2(3 cm thick) is 0.67 W/m K. If the air surrounding the slab is 27 C and the convective heat transfer coefficient between the top of the slab and the air is 20 W/m²K. What is the rate of heat transfer from the side of the slab touching the hot plate to the air?
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:4.
A bilayer polymer slab (1.2m long, 1.4m wide, 5 cm thick) is placed on a hot plate,
which keeps the side of the slab touching the hot plate at 105C. The thermal conductivity of
Layer 1 (2 cm thick) is 0.44 W/mK and the thermal conductivity of Layer 2(3 cm thick) is 0.67
W/m K. If the air surrounding the slab is 27 C and the convective heat transfer coefficient
between the top of the slab and the air is 20 W/m²K. What is the rate of heat transfer from the
side of the slab touching the hot plate to the air?
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