A spherical, 3 mm cryogenic probe at temperature -30°C is embedded into skin at 37°C. Frozen tissue develops and the interface between the frozen and normal tissue is 0°C. If the thermal conductivity of frozen tissue is 1.5 W/m-K and heat transfer at the phase front is characterized by a convection coefficient of 50 Wim2-K, what is the thickness of the frozen layer? 1=0.0015 m Probe 12 Ts.1=-30 °C -T32=0°C Normal tissue Ten = 37 °C h= 50 Wim2 -K Goond Frozen tissue, k= 1.5 WimK 9oonv

A spherical, 3 mm cryogenic probe at temperature -30°C is embedded into skin at 37°C. Frozen tissue develops and the interface between the frozen and normal tissue is 0°C. If the thermal conductivity of frozen tissue is 1.5 W/m-K and heat transfer at the phase front is characterized by a convection coefficient of 50 Wim2-K, what is the thickness of the frozen layer? 1=0.0015 m Probe 12 Ts.1=-30 °C -T32=0°C Normal tissue Ten = 37 °C h= 50 Wim2 -K Goond Frozen tissue, k= 1.5 WimK 9oonv

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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Question

Example – Book Problem 3.59
A spherical, 3
embedded into skin at 37°C. Frozen tissue develops and
the interface between the frozen and normal tissue is 0°C.
mm cryogenic probe at temperature -30°C is
If the thermal conductivity of frozen tissue is 1.5 W/m K and
heat transfer at the phase front is characterized by a
convection coefficient of 50 W/m2-K, what is the thickness of
the frozen layer?
= 0.0015 m
Probe
12
T1=-30 °C
-T&2=D0°C
Normal tissue
Tn = 37 °C
h= 50 W/m2 K
pond
Frozen tissue, k= 1.5 Wim-K
9conv

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