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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, ġe 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.

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, ġe 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.

Elements Of Electromagnetics
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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What is the thermal circuit for this entire system, including convection resistances? T₂ T₂ T. R=1/hA Rond-LA TL wwww.www TL Roy=1/hA Rond=L/K₂A T₂ R₁ = 1/hA T₁ wwwwwww Roy=1/h T₂ 9₁ TL T₁ Rond-L Roud-LA T₁ 91 QBVB T₁ 91 T₂ Tavg QBVB TR www. d₂V₂ B Round Lok 92 Rood LA m Road Lok www mmmmmm ?? Roy-1/hA Rod=L/KA T₂ TR 92 Tx 92 Road = LIKA Reed Leke R-1/hA www R₂ Kony = 1/hA TR R=1/h4 TR ROOKE T₂ T₂ R-1/h T₂ = 1/hA
Transcribed Image Text:What is the thermal circuit for this entire system, including convection resistances? T₂ T₂ T. R=1/hA Rond-LA TL wwww.www TL Roy=1/hA Rond=L/K₂A T₂ R₁ = 1/hA T₁ wwwwwww Roy=1/h T₂ 9₁ TL T₁ Rond-L Roud-LA T₁ 91 QBVB T₁ 91 T₂ Tavg QBVB TR www. d₂V₂ B Round Lok 92 Rood LA m Road Lok www mmmmmm ?? Roy-1/hA Rod=L/KA T₂ TR 92 Tx 92 Road = LIKA Reed Leke R-1/hA www R₂ Kony = 1/hA TR R=1/h4 TR ROOKE T₂ T₂ R-1/h T₂ = 1/hA
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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