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00:08 A camera used for monitoring marine life is placed in water where T.. = 5°C and the convection heat transfer coefficient h - 1420 W/m²K. The camera is operating, but its battery is experiencing thermal runaway, causing the camera to become very hot, and there is volumetric heat generation, qe inside it. There is no heat generation within the waterproof, protective enclosure surrounding it. The camera is already compromised; however, its owner hopes to save the protective case. Each interface (between layers A and B and between layers B and C) must not exceed a temperature of 185°C, or these plastic, protective layers will begin to melt. Approximate the camera and its casing as a composite, rectangular object with flat surfaces. The device's total thickness, L=LA + 2Lg +Lc, is much smaller than its area (into the page); therefore, 1-D conduction can be approximated through the layers. On the left surface of layer A, the temperature is measured to be T₁ - 8.0°C, and the temperature on the right-hand side of layer C is TR-10.5°C. The central layer, B, is the camera. Assume uniform volumetric heat generation within this layer. Approximate the situation as steady-state. Neglect radiation and contact resistance. Furthermore, for any numerical answers, type in the numerical number only. Do not type in units. h, T ttt water TL A protective layer B dв camera 2Lg T, Ta protective layer h, T LA-20 mm LB-10 mm Lc-10 mm ka=0.5 W/m*K ka-3 W/m*K kc-0.5 W/m*K

00:08 A camera used for monitoring marine life is placed in water where T.. = 5°C and the convection heat transfer coefficient h - 1420 W/m²K. The camera is operating, but its battery is experiencing thermal runaway, causing the camera to become very hot, and there is volumetric heat generation, qe inside it. There is no heat generation within the waterproof, protective enclosure surrounding it. The camera is already compromised; however, its owner hopes to save the protective case. Each interface (between layers A and B and between layers B and C) must not exceed a temperature of 185°C, or these plastic, protective layers will begin to melt. Approximate the camera and its casing as a composite, rectangular object with flat surfaces. The device's total thickness, L=LA + 2Lg +Lc, is much smaller than its area (into the page); therefore, 1-D conduction can be approximated through the layers. On the left surface of layer A, the temperature is measured to be T₁ - 8.0°C, and the temperature on the right-hand side of layer C is TR-10.5°C. The central layer, B, is the camera. Assume uniform volumetric heat generation within this layer. Approximate the situation as steady-state. Neglect radiation and contact resistance. Furthermore, for any numerical answers, type in the numerical number only. Do not type in units. h, T ttt water TL A protective layer B dв camera 2Lg T, Ta protective layer h, T LA-20 mm LB-10 mm Lc-10 mm ka=0.5 W/m*K ka-3 W/m*K kc-0.5 W/m*K

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter9: Heat Transfer With Phase Change
Section: Chapter Questions
Problem 9.12P
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a. What is the heat flux, q"1 [in W/m2], at the left-hand side of layer B? Express your answer as a negative number if the heat flux goes to the left, and as a positive number if the heat flux goes to the right.
b.What is the heat flux, q"2 ( in W/m2) at the right-hand side of layer B? Express your answer as a negative number if the heat flux goes to the left, and as a positive number if the heat flux goes to the right.
c. What is the temperature, T1, on the left-hand side of layer B, in Celsius?
d. What is the temperature, T2, on the right-hand side of layer B, in Celsius?
A camera used for monitoring marine life is placed in water where T.. -5°C and the convection heat transfer coefficient h=1420 W/m²K. The camera is operating, but its battery is experiencing thermal runaway, causing the camera to become very hot, and there is volumetric heat generation, qe inside it. There is no heat generation within the waterproof, protective enclosure surrounding it. 00:08 The camera is already compromised; however, its owner hopes to save the protective case. Each interface (between layers A and B and between layers B and C) must not exceed a temperature of 185°C, or these plastic, protective layers will begin to melt. Approximate the camera and its casing as a composite, rectangular object with flat surfaces. The device's total thickness, L=LA + 2LB +Lc, is much smaller than its area (into the page); therefore, 1-D conduction can be approximated through the layers. On the left surface of layer A, the temperature is measured to be T₁ = 8.0°C, and the temperature on the right-hand side of layer C is TR-10.5°C. The central layer, B, is the camera. Assume uniform volumetric heat generation within this layer. Approximate the situation as steady-state. Neglect radiation and contact resistance. Furthermore, for any numerical answers, type in the numerical number only. Do not type in units. h, T 111 water T₂ A protective layer B qв camera 2Lg T₂ с protective layer * TR h, T 111 LA - 20 mm LB-10 mm Lc-10 mm ka=0.5 W/m*K kB = 3 W/m*K kc-0.5 W/m*K
Transcribed Image Text:A camera used for monitoring marine life is placed in water where T.. -5°C and the convection heat transfer coefficient h=1420 W/m²K. The camera is operating, but its battery is experiencing thermal runaway, causing the camera to become very hot, and there is volumetric heat generation, qe inside it. There is no heat generation within the waterproof, protective enclosure surrounding it. 00:08 The camera is already compromised; however, its owner hopes to save the protective case. Each interface (between layers A and B and between layers B and C) must not exceed a temperature of 185°C, or these plastic, protective layers will begin to melt. Approximate the camera and its casing as a composite, rectangular object with flat surfaces. The device's total thickness, L=LA + 2LB +Lc, is much smaller than its area (into the page); therefore, 1-D conduction can be approximated through the layers. On the left surface of layer A, the temperature is measured to be T₁ = 8.0°C, and the temperature on the right-hand side of layer C is TR-10.5°C. The central layer, B, is the camera. Assume uniform volumetric heat generation within this layer. Approximate the situation as steady-state. Neglect radiation and contact resistance. Furthermore, for any numerical answers, type in the numerical number only. Do not type in units. h, T 111 water T₂ A protective layer B qв camera 2Lg T₂ с protective layer * TR h, T 111 LA - 20 mm LB-10 mm Lc-10 mm ka=0.5 W/m*K kB = 3 W/m*K kc-0.5 W/m*K
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What is the temperature, T2, on the right-hand side of layer B, in Celsius and the  uniform volumetric heat generation, q̇B [W/m3], within layer B? 

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