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3 (30%). Air, at atmospheric pressure and temperature of 100°C, flows...
Air at atmospheric pressure and temperature of 565 C flows with velocity of 0915 m/sec along...
Air at atmospheric pressure and temperature of 565 C flows with velocity of 0915 m/sec along a flat plate which is kept at a uniform temperature of 121.1 C. Determine the local heat transfer coefficient hk) at a distance of 0,61 meter from the leading edge of the plate and the total heat transfer coefficient hm over the length of x 0 to x= 0.61m peer feet of plate width. Air at average temperature has Pr 0.62, k-0.0313 W/m. C...
Air at atmospheric pressure and temperature of 56 5 C flows with velocity of 0915 m/sec...
Air at atmospheric pressure and temperature of 56 5 C flows with velocity of 0915 m/sec along a flat plate which is kept at a uniform temperature of 121.C Determine the local heat transfe coefficient hx) at a distance of 0.61 meter from the leading edge of the plate and the t transfer coefficient h. over the length of 0to061m peer feet of plate width Air at average temperature has Pr 062, 00313 W/m. C and u 0.22310 m/se
-/25 !!! Current Attempt in Progress Air at atmospheric pressure and a temperature of 25°C is...
-/25 !!! Current Attempt in Progress Air at atmospheric pressure and a temperature of 25°C is in parallel flow at a velocity of 5 m/s over a 1-m-long flat plate that is heated from below with a uniform heat flux of 1250 W/m². Assume the flow is fully turbulent over the length of the plate. Evaluate properties at 325 K. (a) Calculate the plate surface temperature, Ts(x). in °C, and the local convection coefficient, hx(x), in W/m².K. at x =...
Air at atmospheric pressure and a temperature of 25°C is in parallel flow at a velocity...
Air at atmospheric pressure and a temperature of 25°C is in parallel flow at a velocity of 5 m/s over a 1-m-long flat plate that is heated from below with a uniform heat flux of 1250 W/m2. Assume the flow is fully turbulent over the length of the plate. Evaluate properties at 325 K. (a) Calculate the plate surface temperature, Ts(x), in °C, and the local convection coefficient, hx(x ), in W/m2.K. at x = 0.2 m. (b) Calculate the...
Air at a pressure of 1 atm and a temperature of 60 °C is in parallel...
Air at a pressure of 1 atm and a temperature of 60 °C is in parallel flow over the top surface of a flat plate that is heated to a uniform temperature of 194 °C. The plate has a length of 0.30 m (in the flow direction) and a width of 0.20 m. The Reynolds number based on the plate length is 60,000. 1) Draw an annotated schematic of the problem. 2) What is the rate of heat transfer from...
Heat Transfer Please be neat and organized for a thumbs up! Problem 3 Atmospheric air at...
Heat Transfer
Please be neat and organized for a thumbs up!
Problem 3 Atmospheric air at T 300 K and a free stream velocity of u 10 m/s flows over a flat plate L = 2 m long that is maintained at a uniform temperature T-320 K. (a) Calculate the average heat transfer coefficient over the region where the boundary layer is laminar. What is the boundary layer thickness at this location? plate as well as the velocity boundary layer...
Problem 1: Atmospheric air at 25°C flows over both surfaces of 2 m long flat plate...
Problem 1: Atmospheric air at 25°C flows over both surfaces of 2 m long flat plate maintained at 125°C. For upper surface, velocity of air is 1 m/s and for lower surface, velocity is 10 m/s. (Rex,c = 5x105) (a) Determine the flow condition for upper and lower surfaces. (Laminar, or turbulent). If the condition is that laminar to turbulent is taking place, calculate the position where transition from the laminar to turbulent happens. (b) Determine the rate of heat...
Question 1 25 ترفع الاجابة على شكل ملف PDF يحوي جميع الأجوية 1: Atmospheric air at...
Question 1 25 ترفع الاجابة على شكل ملف PDF يحوي جميع الأجوية 1: Atmospheric air at 25°C flows with a velocity of 40 m/s past a flat plate 0.75 m long and 0.4 m wide. The surface of the plate is maintained at 275°C. Estimate: (a) the total heat transferred and the total drag force on one side of the plate (b) fraction of the heat transfer and drag force for laminar portion of flow (c) what error in part...
please show all work, thanks 2. A hot surface at 100 °C needs to be cooled...
please show all work, thanks
2. A hot surface at 100 °C needs to be cooled by attaching one 3-cm long, 0.25-cm-diameter pin (circular cross-section) fins with k =237 W/mK. The ambient air at a temperature of 30 °C, and there is a cross flow to the pins, of 1 m/s (air velocity). The fin is INSULATED at the end. a (15%). What is the heat transfer rate for one fin? b (15%). What is the temperature at the tip?
Please show work 11-43·Atmospheric air with a dry bulb temperature of 30°C and a relative humidity...
Please show work
11-43·Atmospheric air with a dry bulb temperature of 30°C and a relative humidity f 40 percent enters the cooling section of an air-conditioning system at a rate of 10 kg/s and is cooled to 18°C. Determine the volumetric flow rate of the air leaving the cooling section, the heat-transfer rate required for this process, and the entropy change of the air per unit mass of dry air. If the velocity of the airstream is not to exceed...
Air at atmospheric pressure and temperature of 565 C flows with velocity of 0915 m/sec along a flat plate which is kept at a uniform temperature of 121.1 C. Determine the local heat transfer coefficient hk) at a distance of 0,61 meter from the leading edge of the plate and the total heat transfer coefficient hm over the length of x 0 to x= 0.61m peer feet of plate width. Air at average temperature has Pr 0.62, k-0.0313 W/m. C...
Air at atmospheric pressure and temperature of 56 5 C flows with velocity of 0915 m/sec along a flat plate which is kept at a uniform temperature of 121.C Determine the local heat transfe coefficient hx) at a distance of 0.61 meter from the leading edge of the plate and the t transfer coefficient h. over the length of 0to061m peer feet of plate width Air at average temperature has Pr 062, 00313 W/m. C and u 0.22310 m/se
-/25 !!! Current Attempt in Progress Air at atmospheric pressure and a temperature of 25°C is in parallel flow at a velocity of 5 m/s over a 1-m-long flat plate that is heated from below with a uniform heat flux of 1250 W/m². Assume the flow is fully turbulent over the length of the plate. Evaluate properties at 325 K. (a) Calculate the plate surface temperature, Ts(x). in °C, and the local convection coefficient, hx(x), in W/m².K. at x =...
Air at atmospheric pressure and a temperature of 25°C is in parallel flow at a velocity of 5 m/s over a 1-m-long flat plate that is heated from below with a uniform heat flux of 1250 W/m2. Assume the flow is fully turbulent over the length of the plate. Evaluate properties at 325 K. (a) Calculate the plate surface temperature, Ts(x), in °C, and the local convection coefficient, hx(x ), in W/m2.K. at x = 0.2 m. (b) Calculate the...
Air at a pressure of 1 atm and a temperature of 60 °C is in parallel flow over the top surface of a flat plate that is heated to a uniform temperature of 194 °C. The plate has a length of 0.30 m (in the flow direction) and a width of 0.20 m. The Reynolds number based on the plate length is 60,000. 1) Draw an annotated schematic of the problem. 2) What is the rate of heat transfer from...
Heat Transfer
Please be neat and organized for a thumbs up!
Problem 3 Atmospheric air at T 300 K and a free stream velocity of u 10 m/s flows over a flat plate L = 2 m long that is maintained at a uniform temperature T-320 K. (a) Calculate the average heat transfer coefficient over the region where the boundary layer is laminar. What is the boundary layer thickness at this location? plate as well as the velocity boundary layer...
Problem 1: Atmospheric air at 25°C flows over both surfaces of 2 m long flat plate maintained at 125°C. For upper surface, velocity of air is 1 m/s and for lower surface, velocity is 10 m/s. (Rex,c = 5x105) (a) Determine the flow condition for upper and lower surfaces. (Laminar, or turbulent). If the condition is that laminar to turbulent is taking place, calculate the position where transition from the laminar to turbulent happens. (b) Determine the rate of heat...
Question 1 25 ترفع الاجابة على شكل ملف PDF يحوي جميع الأجوية 1: Atmospheric air at 25°C flows with a velocity of 40 m/s past a flat plate 0.75 m long and 0.4 m wide. The surface of the plate is maintained at 275°C. Estimate: (a) the total heat transferred and the total drag force on one side of the plate (b) fraction of the heat transfer and drag force for laminar portion of flow (c) what error in part...
please show all work, thanks
2. A hot surface at 100 °C needs to be cooled by attaching one 3-cm long, 0.25-cm-diameter pin (circular cross-section) fins with k =237 W/mK. The ambient air at a temperature of 30 °C, and there is a cross flow to the pins, of 1 m/s (air velocity). The fin is INSULATED at the end. a (15%). What is the heat transfer rate for one fin? b (15%). What is the temperature at the tip?
Please show work
11-43·Atmospheric air with a dry bulb temperature of 30°C and a relative humidity f 40 percent enters the cooling section of an air-conditioning system at a rate of 10 kg/s and is cooled to 18°C. Determine the volumetric flow rate of the air leaving the cooling section, the heat-transfer rate required for this process, and the entropy change of the air per unit mass of dry air. If the velocity of the airstream is not to exceed...
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