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

Fire risk assessment in uk - fire protection engineering, Fire risk assessm...

Fire risk assessment in UK: In the UK FRAs are required by law in all commercial premises. But the FRAs are not the same as described in NFPA 551. The principles remain the

Allowances for pattern, Allowances for pattern : A pattern is always made ...

Allowances for pattern : A pattern is always made larger than the required size of the casting in order to allow for various factor, such as shrinkage, machining, distortion and r

Public health eng, Design a sewer collection system incorporating flow rate...

Design a sewer collection system incorporating flow rates, pipe sizes and pipe slopes for the proposed residential development shown in the attached drawing. In your design, locat

Engineering economices, 2. A contractor has both a 3-cy and a 5-cy shovel i...

2. A contractor has both a 3-cy and a 5-cy shovel in the equipment fleet. Select the minimum size shovel that will excavate 400,000bcy of common earth in a minimum of 130 working d

Eng, all projrct is correct excpet for last part it will not fire a table...

all projrct is correct excpet for last part it will not fire a table

Material used for patterns, Material Used for Patterns : The common materi...

Material Used for Patterns : The common materials of which the patterns are made of the following : 1. Wood: The common woods are : (i) Pine

Cash flow statement, Cash flow statement is one of the three necessary repo...

Cash flow statement is one of the three necessary reporting & measurement systems for a company. The cash flow statement gives a third perspective alongside the profit & loss accou

Inhibit gate, Inhibit Gate Occasionally it is required to 'hold' one in...

Inhibit Gate Occasionally it is required to 'hold' one input to an AND gate at a particular logic level in order to disable the entire gate. One method of representing this sy

NETWORKING ETHRNET, WHAT IS RTT

WHAT IS RTT

Embossing and coining, Embossing is a forming operation used to create inde...

Embossing is a forming operation used to create indentation in the sheet, such as raised (indented) lettering or strengthening rips, as shown in fig. Some stretching and thinning o

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