Heat and mass transfer, engineering, Other Engineering

Heat and mass transfer, engineering, Other Engineering

Assignment Help:

1. Air at 1 atm, 90F, and 8 ft/s enters a thin-walled tube of 4-in diameter. The tube surface temperature is maintained at 60F. Air exits the tube at 70F. Determine the length of the tube required to accomplish this process. Work in English units!

2. A box 15-cm by 50-cm at a constant surface temperature of 35C is exposed to ambient air from all sides except the base (50cm by 50 cm in a horizontal plane). The ambient air is 1 atm, 25C. Estimate the natural convection heat loss from the top of the surface as well as the side surface

3. Air at 1 atm, 25C and 8 m/s is to be heated by an in-line tube-bank with 3 rows in the flow direction and 4 tubes in each row. The outside diameter of the tubes is 0.012m with a length of 0.2 m. The surface temperature of the tubes is maintained at 350 C. Taking the air properties at 35C, calculate:

a. The air temperature and heat transfer

b. The air pressure drop across the tube-bank

Related Discussions:- Heat and mass transfer, engineering

Time-flow diagram, One approach of an intersection with fixed time traffic ...

One approach of an intersection with fixed time traffic signals, vehicles arrive at 500 veh/h on the approach. The cycle time of the intersection is 80 seconds, and the effective g

Fluid mechanics, A body, with a volume of 2m^3, weights 40 kN. Determine it...

A body, with a volume of 2m^3, weights 40 kN. Determine its weight when submerged in liquid with S= 1.59.

Calculate the maximum amount of recoverable resource, A 30m deep quarry pit...

A 30m deep quarry pit is to be constructed in a jointed basalt rock mass. The quarry management wants to maximise the side wall inclination to 70° for economic reasons. The geologi

Armature cipl, in which type of armature winding Equaliser ring dummy coils...

in which type of armature winding Equaliser ring dummy coils are used

QAM constellation diagram.., Draw the QAM constellation diagram of 101101...

Draw the QAM constellation diagram of 10110100

Java, I''m trying to figure out how to use a for and while loop to: print e...

I''m trying to figure out how to use a for and while loop to: print each word found in 4 columns across the output page, in the order they were found. This means you must print the

Evaporation, 2-17 Given a wind speed of 5.0 m/s at 2 m above the ground and...

2-17 Given a wind speed of 5.0 m/s at 2 m above the ground and a roughness length of 0.8 cm, compute (a) the friction velocity, in centimeters per second, and (b) the wind speed, i

Extended input facilities, Extended input facilities Another instance w...

Extended input facilities Another instance where multiple inputs to a single gate operation can occur is with certain types of gate elements that have an 'EXTENDED INPUT' facil

Request for quote, I need the following corporate finance problems complete...

I need the following corporate finance problems completed in an excel spreadsheet. How much would this cost? 1) An investment project requires a net investment of $100,000. The pr

3d sketch , I am a chemical engineering foundation year. I need your help ...

I am a chemical engineering foundation year. I need your help with my homework, its 3D sketch by using Google sketchup program?? I have not use it before. Or any other 3D sketch p

Write Your Message!

Name

Email id

Message

Verfication Code

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd