Question

A vertical plate of 700 mm wide and 120 cm height is maintained at a temperature...

A vertical plate of 700 mm wide and 120 cm height is maintained at a temperature of 95oC in a room at 25oC with an air conditioning with velocity of 36000 cm/min. Calculate the heat transfer coefficient and convective heat transfer rate.

Engineering   Chemical-Engineering   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Since it is mentioned that air conditioning is used we can consider force circulation and can calculate heat transfer coefficient from the relationship between nusselt number, Reynolds number and prandtl number

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
a)      A vertical plate of 700 mm wide and 120 cm height is maintained at a...
a)      A vertical plate of 700 mm wide and 120 cm height is maintained at a temperature of 95oC in a room at 25oC with an air conditioning with velocity of 36000 cm/min. Calculate the heat transfer coefficient and convective heat transfer rate. (b)      Two concentric cylinders are located in a large room. Determine the view factors for the two cylinders when the length is 20 cm, the inner radius (r1) is 5 cm and the outer radius (r2) 10...
A flat plate measuring 20 cm by 20 cmis exposed to the flow of 30 degree...
A flat plate measuring 20 cm by 20 cmis exposed to the flow of 30 degree C water at a velocity of 35 cm/s. If the plate is maintained at a uniform temperature of 95 degree C, what is the total convective heat transfer from the plate?
Air at 25C blows over a hot plate maintained at 300C. The hot plate has dimensions...
Air at 25C blows over a hot plate maintained at 300C. The hot plate has dimensions of 50cm width and 75cm lenghth. after small investigation.it has been found that heat transfer is 3.5kW. Provide all assumptions used. 1.Draw a picture to represent the scenario 2.calculate convective heat transfer 3.Assuming that the hot plate is made of carbon steel (1%C) 2cm thick and that an additional 450kW is lost from the plate surface through radiation, calculate inside plate temperature
Consider the vertical rear window of an automobile that has a thickness L= 9 mm and...
Consider the vertical rear window of an automobile that has a thickness L= 9 mm and height H=0.5 m with heating wires that create uniform volumetric heating. The window interior is exposed to ambient air at 10°C and the window exterior to air at -10°C which moves in parallel flow over the surface with a velocity of 20 m/s. The surface temperature of the window exterior is 12°C. Using the correlation developed by Churchill and Chu, find the convective heat...
A square plate of 0.5 m length is heated to temperature of 383 K. Air at...
A square plate of 0.5 m length is heated to temperature of 383 K. Air at 293 K and 1 atm flows over the plate at 15 m/s. Calculate the total heat transferred. Determine the convection heat transfer coefficient, thermal boundary layer, and the velocity boundary layer at the trailing edge of the plate.
1. Consider a 1.8-m high and 1.5 m-wide double-pane window consisting of two 4-mm thick layers...
1. Consider a 1.8-m high and 1.5 m-wide double-pane window consisting of two 4-mm thick layers of glass (k = 0.78 W/m°C) separated by a 10-mm wide stagnant air space (k = 0.026 W/m°C). The room is maintained at 20°C while the temperature of the outdoors is -10°C. Take the convective heat transfer coefficients on the inner and outer surfaces of the window to be 10 W/m2°C and 40 W/m2°C, respectively. Determine the steady rate of heat transfer through this...
there is a plate with 2ft width, 4ft length and 130°F of the surface temperature. awater...
there is a plate with 2ft width, 4ft length and 130°F of the surface temperature. awater with 50°F of temperature flows on this plate with 9ft/s velocity. Calculate the average heat transfer coefficient and the convective heat loss in this plate. For the calculation please use the following constant properties. heat conductivity(k)=0.36 Btu/(hr ft °F) viscosity=5.14×10^(-4) lbm/(ft s) density=62.11 lbm/(ft^(3)) Pr=5.12 Nu=0.036×Pr^(1/3)×Re^(2/3):laminar flow Nu=0.036×Pr^(1/3)×(Re^(0.8)-23200):turbulent flow
In a warehouse, a cold room that is maintained at 10oC has a wall made of...
In a warehouse, a cold room that is maintained at 10oC has a wall made of two layers of materials. The inner layer has a thickness of 2 cm and a thermal conductivity of 0.1 W/mK. The outer layer, which is 4 cm thick, has a thermal conductivity of 0.04 W/mK. The temperature of the outside ambient is 30oC . The convective heat transfer coefficients on the outside and the inside of the wall are 40 W/m2K and 20 W/m2K...
A hot plate with a temperature of 60 ° C will be cooled by adding 50...
A hot plate with a temperature of 60 ° C will be cooled by adding 50 triangular profile needle blades (k = 243 W / mK) with a length of 93 mm and 10 mm. According to the ambient temperature 20 C and the heat transfer coefficient on the surface 20 W / m ^ 2 K; a-) Wing efficiency, b-) Total heat transfer rate (W) from the wings, c-) Calculate the effectiveness of a wing.
In a coal fired power plant, a furnance Wall consists of a 125 mm wide refractory...
In a coal fired power plant, a furnance Wall consists of a 125 mm wide refractory brick and a 125 mm wide insulating firebrick separated by an air gap as shown in figure. The outside Wall is covered with a 12 mm thickness of plaster. The inner surface of Wall is at 1100 °C, and then room temp is 25 °C. The Heat transfer coefficient from the outside Wall surface to air in room is 17 W/m^2 K, resistance to...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT