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Supplemental Problem 7.001 A flat plate of width 1 m is maintained at a uniform surface temperatu...
PRINTER VERSION BACK NEXT RCES Supplemental Problem 7.001 A flat plate of width 1 m is...
PRINTER VERSION BACK NEXT RCES Supplemental Problem 7.001 A flat plate of width 1 m is maintained at a uniform surface temperature of T,-160°C by using independently controlled, heat-generating rectangular modules of thickness a 10 mm and length b 50 mm. Each module is insulated from its neighbors, as well as on its back side. Atmospheric air at 25°C flows over the plate at a velocity of 30 m/s. The thermophysical properties of the module are k5.2 W/m K, cp...
11) An isothermal flat plate is subjected to uniform flow as shown below. Using the properties...
11) An isothermal flat plate is subjected to uniform flow as shown below. Using the properties and the illustration, determine the following: a) What is the heat flux at x1 (8 Points) b) What is the heat flux at x2 (8 Points) c) A temperature profile of T(x,y) = (5x2 + 3x + 8)*y is proposed for this plate. Is this a valid temperature profile for the illustrated case with constant thermophysical properties (not changing with respect to varying temperature)?...
Supplemental Problem 2.003 A large plate of thickness 2L is at a uniform temperature of Tỉ-190°C,...
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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?...
1. A very smooth flat plate of length L = 0.5 m and width b =...
1. A very smooth flat plate of length L = 0.5 m and width b = 2 m is immersed parallel to a stream of velocity 2 m/s. For both air and water as the working fluids; a. Show that the flow is completely laminar over the entire plate. (5 marks] b. Determine the drag force on one side of the plate. [4 marks] c. Determine the thicknesses , 8*, and at the end of the plate (x = L)....
3. (25 points) Consider a rectangular plate 0.15 by 03 m, maintained at a uniform temperature...
3. (25 points) Consider a rectangular plate 0.15 by 03 m, maintained at a uniform temperature of 80 °C, placed vertically in quiescent atmospheric air at 2C The emissivity of the plate is 0.8; the surrounding temperature is also at 24°C. Comute the heat transfer rate from the plate when the vertical height is 0.3. TABLE A.4 Thermophysical Properties of Gases at Atmospherie Pressure (K) Air (kg/ir) (kJkR.K) ov.sim) (mh) Nn.Ю 00 3.5562 1.032 50 2.3364 1.012 200 1.7458 1.007...
1. A very smooth flat plate of length L-1 m and width b 3 m is immersed parallel to a stream of velocity 2 m/s. For both air and water as the working fluids [5 marks] Show that the flow is completely...
1. A very smooth flat plate of length L-1 m and width b 3 m is immersed parallel to a stream of velocity 2 m/s. For both air and water as the working fluids [5 marks] Show that the flow is completely laminar over the entire plate. a. b. Determine the drag force on one side of the plate. Determine the thicknesses δ, δ*, and θ at the end of the plate (x L). [6 marks] C. For air use,...
2. (25 pts) Engine oil flows with a velocity of 6 m/s over a flat plate...
2. (25 pts) Engine oil flows with a velocity of 6 m/s over a flat plate having 1m length and 1 m width. The oil has a free stream temperature To= 80 °C and the plate surface temperature is maintained at Ts = 0 °C. a. Determine whether the flow over the plate transitions to turbulent regime. b. Calculate the average friction factor and the average heat transfer coefficient for the plate by using the appropriate correlations. c. Calculate the...
Exercise 2 Air at 20 °C and 1 atm flows over a flat plate at 50...
Exercise 2 Air at 20 °C and 1 atm flows over a flat plate at 50 m/s. The plate is 300 cm long and is maintained at 60C. The width of the plate is 2 m. The critical Rec = 5 x 105 The properties are Conductivity k = 0.0263 W/mK, kinematic viscosity nu = v = 15.89 x 10-6 m²/s, Prandtl number is Pr=0.707 Density rho = p = 1.128 kg/m3 1. Determine the critical length Xc 2. Determine...
Consider liquid water flowing over a flat plate of length L = 1 m. The water has the following properties: ρ-1000 kg/m3, Cp-4000 J/kgK. 10 3 kg/ ms, k 0.6 W/m . C μ Midway through the plate at x...
Consider liquid water flowing over a flat plate of length L = 1 m. The water has the following properties: ρ-1000 kg/m3, Cp-4000 J/kgK. 10 3 kg/ ms, k 0.6 W/m . C μ Midway through the plate at x = 0.5 m, you measure a heat flux to the surface of: 05 m 3181 W/m2 You also measure an average heat flux to the surface over the length of the plate of: "4500 W/m2 Knowing the latter, and knowing...
Consider a chemical reactor that has a constant heat release. In this reactor, there are 1-m...
Consider a chemical reactor that has a constant heat release. In this reactor, there are 1-m long cylindrical pipes (L) have inner diameter of 25 mm (D) and Helium gas enters each of the pipe at 400K (Ti) and exits at 800K (Te) that is used to cool the reactor at atmospheric pressure and has mass flow rate as 0.02 kg/s. Determine; (Helium properties at Tf; ρ=0.08 kg/m3; Cp=5200 J/kg.K; µ= 32*10-6 kg.m/s ; k=0.23 W/m.K; Pr= 0.72) the surface...
PRINTER VERSION BACK NEXT RCES Supplemental Problem 7.001 A flat plate of width 1 m is maintained at a uniform surface temperature of T,-160°C by using independently controlled, heat-generating rectangular modules of thickness a 10 mm and length b 50 mm. Each module is insulated from its neighbors, as well as on its back side. Atmospheric air at 25°C flows over the plate at a velocity of 30 m/s. The thermophysical properties of the module are k5.2 W/m K, cp...
11) An isothermal flat plate is subjected to uniform flow as shown below. Using the properties and the illustration, determine the following: a) What is the heat flux at x1 (8 Points) b) What is the heat flux at x2 (8 Points) c) A temperature profile of T(x,y) = (5x2 + 3x + 8)*y is proposed for this plate. Is this a valid temperature profile for the illustrated case with constant thermophysical properties (not changing with respect to varying temperature)?...
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?...
1. A very smooth flat plate of length L = 0.5 m and width b = 2 m is immersed parallel to a stream of velocity 2 m/s. For both air and water as the working fluids; a. Show that the flow is completely laminar over the entire plate. (5 marks] b. Determine the drag force on one side of the plate. [4 marks] c. Determine the thicknesses , 8*, and at the end of the plate (x = L)....
3. (25 points) Consider a rectangular plate 0.15 by 03 m, maintained at a uniform temperature of 80 °C, placed vertically in quiescent atmospheric air at 2C The emissivity of the plate is 0.8; the surrounding temperature is also at 24°C. Comute the heat transfer rate from the plate when the vertical height is 0.3. TABLE A.4 Thermophysical Properties of Gases at Atmospherie Pressure (K) Air (kg/ir) (kJkR.K) ov.sim) (mh) Nn.Ю 00 3.5562 1.032 50 2.3364 1.012 200 1.7458 1.007...
1. A very smooth flat plate of length L-1 m and width b 3 m is immersed parallel to a stream of velocity 2 m/s. For both air and water as the working fluids [5 marks] Show that the flow is completely laminar over the entire plate. a. b. Determine the drag force on one side of the plate. Determine the thicknesses δ, δ*, and θ at the end of the plate (x L). [6 marks] C. For air use,...
2. (25 pts) Engine oil flows with a velocity of 6 m/s over a flat plate having 1m length and 1 m width. The oil has a free stream temperature To= 80 °C and the plate surface temperature is maintained at Ts = 0 °C. a. Determine whether the flow over the plate transitions to turbulent regime. b. Calculate the average friction factor and the average heat transfer coefficient for the plate by using the appropriate correlations. c. Calculate the...
Exercise 2 Air at 20 °C and 1 atm flows over a flat plate at 50 m/s. The plate is 300 cm long and is maintained at 60C. The width of the plate is 2 m. The critical Rec = 5 x 105 The properties are Conductivity k = 0.0263 W/mK, kinematic viscosity nu = v = 15.89 x 10-6 m²/s, Prandtl number is Pr=0.707 Density rho = p = 1.128 kg/m3 1. Determine the critical length Xc 2. Determine...
Consider liquid water flowing over a flat plate of length L = 1 m. The water has the following properties: ρ-1000 kg/m3, Cp-4000 J/kgK. 10 3 kg/ ms, k 0.6 W/m . C μ Midway through the plate at x = 0.5 m, you measure a heat flux to the surface of: 05 m 3181 W/m2 You also measure an average heat flux to the surface over the length of the plate of: "4500 W/m2 Knowing the latter, and knowing...
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