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5. A flaked cereal is of thickness 2L=1.2 mm (or the characteristic length Lc = V/A=...
5.11 A flaked cereal is of thickness 2L = 1.0 mm. The density, specific heat, and...
5.11 A flaked cereal is of thickness 2L = 1.0 mm. The density, specific heat, and thermal conductivity of the flake are p = 700 kg/m?, c, = 2400 J/kg • K, and k = 0.34 W/ m K , respectively. The product is to be baked by increasing its temperature from T; = 20°C to Tf = 220°C in a con- vection oven, through which the product is carried on a conveyor. If the oven is Lo = 4...
SOLVE USING MATLAB WITH THE ODE solver ‘ode45’ pcv) is sall comparedto h 5. 5.10 A...
SOLVE USING MATLAB WITH THE ODE solver ‘ode45’
pcv) is sall comparedto h 5. 5.10 A flaked cereal is of thickness 2L = 1.2 mm. The density, specific heat, and thermal conductivity of the flake are ,-700 kg/m3, dp-2400 J/kg . K, and k 0.34 W/m-K, respectively. The product is to be baked by increasing its temperature from T = 20°C to T, 220°C in a convec- tion oven, through which the product is carried on a con- veyor. If...
7. (20 pts) A sphere with 30 mm in diameter initially at 800 K is quenched...
7. (20 pts) A sphere with 30 mm in diameter initially at 800 K is quenched in a large bath having a constant temperature of 320 K with a convection heat transfer of 75 W/m2.K. The thermophysical properties of the sphere material are: p=400 kg/mº, c=1600 J/kg-K, and k=1.7 W/mK. (Use characteristic length Lc=VIA to determine applicability of lumped method; Use radius of the sphere for one term approximation) a) Calculate the time required for the surface of the sphere...
Problem 1 (35 pts) The gold sphere, which is 20 mm in diameter, is located at 75°C before it is i...
Problem 1 (35 pts) The gold sphere, which is 20 mm in diameter, is located at 75°C before it is inserted into water stream having a temperature of 25°C. A thermocouple on the outer surface of the sphere indicates 55°C, 100 sec after the sphere is inserted into the water. Assume the sphere behaves as an isothermal object. (Pure gold: k = 400 W/m K, ρ = 9000 kg/m3,G-400 J/kg K, Volume of sphere (V)--, Lc = (3) Determine total...
A plane wall of thickness 2L= 30 mm and thermal conductivity k= 3 W/m·K experiences uniform...
A plane wall of thickness 2L= 30 mm and thermal conductivity k= 3 W/m·K experiences uniform volumetric heat generation at a rate q˙, while convection heat transfer occurs at both of its surfaces (x=-L, +L), each of which is exposed to a fluid of temperature ∞T∞= 20°C. Under steady-state conditions, the temperature distribution in the wall is of the form T(x)=a+bx+cx2 where a= 82.0°C, b= -210°C/m, c= -2 × 104°C/m2, and x is in meters. The origin of the x-coordinate...
Supplemental Problem 2.003 A large plate of thickness 2L is at a uniform temperature of Tỉ-190°C,...
I will rate. Thanks so much
Supplemental Problem 2.003 A large plate of thickness 2L is at a uniform temperature of Tỉ-190°C, when it is suddenly quenched by dipping it in a liquid bath of temperature To Heat transfer to the liquid is characterized by the convection coefficient h. Assume x = 0 corresponds to the midplane of the wall -20°C (a) If h = 100 w/m2, K, what is the heat flux atx = L and t = 0?...
Problem 3. A plane wall of thickness 2L = 40 mm and thermal conductivity k =...
Problem 3. A plane wall of thickness 2L = 40 mm and thermal conductivity k = 5 W/m.K experiences uniform volumetric heat generation at a rate ġ, while convection heat transfer occurs at both of its surfaces (x = -1, + L), each of which is exposed to a fluid of temperature Too = 20 °C. Under steady-state conditions, the temperature distribution in the wall is of the form T(x) = a + bx + cx? where a = 82.0°C,...
An aluminum plate with a thickness of L=5 mm is mounted in a horizontal position, and...
An aluminum plate with a thickness of L=5 mm is mounted in a horizontal position, and its bottom surface is well insulated. A special, thin coating (with emissivity and solar absorptivity of 0.25) is applied to the top surface. The density ρ and specific heat c of aluminum are known to be 2700 kg/m3 and 900 J/kg · K, respectively. Consider conditions for which the plate is initially at a temperature of ??????=25 °C and its top surface is suddenly...
Problem 2: A stainless steel rod (k-21 W/m-K, p-8000 kg/m3, C,,-570 J/kg-K) with diameter D-10 mm is heat-treated as it...
Problem 2: A stainless steel rod (k-21 W/m-K, p-8000 kg/m3, C,,-570 J/kg-K) with diameter D-10 mm is heat-treated as it passes through a furnace at a speed of 2 cm/s. The furnace has a convection coefficient of 80 W/m2-K and an air temperature of 900°C. The furnace is 3 m long, and the stainless steel enters at 20°C. (a) Using a control volume of length S traveling with the rod, develop a differential equation for the rate of change of...
4- A steel strip of thickness 6-12 mm is annealed by passing it through a large fumace whose wall...
4- A steel strip of thickness 6-12 mm is annealed by passing it through a large fumace whose walls are maintained at a temperature Tw corresponding to that of combustion gases flowing through the fumace (Iw Tp). The stip, whose density, spcific thermal conductivity, and emissivity are 79 kg/m3, cp -640 J/kg K, k 30 W/m K and 0.7, respectively, is to be heated from 300°C to 600°C Furnace walls, Combustion gases For a unifom convection coefficient of h-100 W/m2...
5.11 A flaked cereal is of thickness 2L = 1.0 mm. The density, specific heat, and thermal conductivity of the flake are p = 700 kg/m?, c, = 2400 J/kg • K, and k = 0.34 W/ m K , respectively. The product is to be baked by increasing its temperature from T; = 20°C to Tf = 220°C in a con- vection oven, through which the product is carried on a conveyor. If the oven is Lo = 4...
SOLVE USING MATLAB WITH THE ODE solver ‘ode45’
pcv) is sall comparedto h 5. 5.10 A flaked cereal is of thickness 2L = 1.2 mm. The density, specific heat, and thermal conductivity of the flake are ,-700 kg/m3, dp-2400 J/kg . K, and k 0.34 W/m-K, respectively. The product is to be baked by increasing its temperature from T = 20°C to T, 220°C in a convec- tion oven, through which the product is carried on a con- veyor. If...
7. (20 pts) A sphere with 30 mm in diameter initially at 800 K is quenched in a large bath having a constant temperature of 320 K with a convection heat transfer of 75 W/m2.K. The thermophysical properties of the sphere material are: p=400 kg/mº, c=1600 J/kg-K, and k=1.7 W/mK. (Use characteristic length Lc=VIA to determine applicability of lumped method; Use radius of the sphere for one term approximation) a) Calculate the time required for the surface of the sphere...
Problem 1 (35 pts) The gold sphere, which is 20 mm in diameter, is located at 75°C before it is inserted into water stream having a temperature of 25°C. A thermocouple on the outer surface of the sphere indicates 55°C, 100 sec after the sphere is inserted into the water. Assume the sphere behaves as an isothermal object. (Pure gold: k = 400 W/m K, ρ = 9000 kg/m3,G-400 J/kg K, Volume of sphere (V)--, Lc = (3) Determine total...
I will rate. Thanks so much
Supplemental Problem 2.003 A large plate of thickness 2L is at a uniform temperature of Tỉ-190°C, when it is suddenly quenched by dipping it in a liquid bath of temperature To Heat transfer to the liquid is characterized by the convection coefficient h. Assume x = 0 corresponds to the midplane of the wall -20°C (a) If h = 100 w/m2, K, what is the heat flux atx = L and t = 0?...
Problem 3. A plane wall of thickness 2L = 40 mm and thermal conductivity k = 5 W/m.K experiences uniform volumetric heat generation at a rate ġ, while convection heat transfer occurs at both of its surfaces (x = -1, + L), each of which is exposed to a fluid of temperature Too = 20 °C. Under steady-state conditions, the temperature distribution in the wall is of the form T(x) = a + bx + cx? where a = 82.0°C,...
Problem 2: A stainless steel rod (k-21 W/m-K, p-8000 kg/m3, C,,-570 J/kg-K) with diameter D-10 mm is heat-treated as it passes through a furnace at a speed of 2 cm/s. The furnace has a convection coefficient of 80 W/m2-K and an air temperature of 900°C. The furnace is 3 m long, and the stainless steel enters at 20°C. (a) Using a control volume of length S traveling with the rod, develop a differential equation for the rate of change of...
4- A steel strip of thickness 6-12 mm is annealed by passing it through a large fumace whose walls are maintained at a temperature Tw corresponding to that of combustion gases flowing through the fumace (Iw Tp). The stip, whose density, spcific thermal conductivity, and emissivity are 79 kg/m3, cp -640 J/kg K, k 30 W/m K and 0.7, respectively, is to be heated from 300°C to 600°C Furnace walls, Combustion gases For a unifom convection coefficient of h-100 W/m2...
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