Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Chemical Engineering Expert

Problem1) Consider the temperature distribution in a 1D flat plate, insulated at x = L and exposed to convective heat transfer at x = 0. On the axes below, sketch what the distribution looks like for the semi-infinite slab solution, the truncated exact solution, and the exact solution for the indicated value of the Fourier number.

2197_Teperature distribution.jpg

Problem 2 Consider the 2D shape below. Draw a possible configuration of nodes and cells (at least 15) that could be used to solve for the temperature distribution. Provide equations that would be used to solve for the transient temperature distribution using the implicit method for a corner node, a left edge node, and a right edge node.

500_Teperature distribution_1.jpg
Problem 3a) Show that the Nusselt number for a sphere in a quiescent fluid is 2. Hint: prepare the thermal resistance for the outer surface of the sphere in terms as both conductive and convective resistances, and then equate the two.

Problem 3b) Ranz and Marshall recommended the correlation NuD‾ = 2 + 0.6ReD1/2Pr1/3 for a lead sphere with D = 1cm in a constant applied flow. If the air speed is u= 5m/s , what is the surface temperature of the sphere at Fo= 1?

1159_Constant applied flow.jpg

Problem4) Consider laminar flow through two infinitely wide parallel plates spaced D apart from one another. What is the thermal entry length?

Problem5) On a summer day the air temperature is 27°C and the relative humidity is 30%. Water evaporates from the surface of a lake at a rate of 0.10 kg/h per square meter of water surface area. The temperature of the water is also 27°C. Determine the value of the convection mass transfer coefficient.

Problem6) An industrial process involves the evaporation of water from a liquid film that forms on a contoured surface. Dry air is passed over the surface, and from laboratory measurements the convection heat transfer correlation is of the form appearing in the table below. What is the evaporation rate if the air has the properties listed below?

797_Evaporation rate.jpg

Chemical Engineering, Engineering

  • Category:- Chemical Engineering
  • Reference No.:- M9888

Have any Question? 


Related Questions in Chemical Engineering

Railroad tracks made of 1025 steel are to be laid during

Railroad tracks made of 1025 steel are to be laid during the time of year when the temperature averages 10°C (50°F). If a joint space of 4.6 mm (0.180 in.) is allowed between the standard 11.9-m (39-ft) long rails, what ...

Calculate the heat kj required to raise the gas temperature

Calculate the heat (kJ) required to raise the gas temperature from 25°C to 1000°C if the heating takes place at constant volume (i.e., if the piston does not move), retaining successively one term, two terms, and all thr ...

The gas so2is being scrubbed from a gas mixture by pure

The gas SO2is being scrubbed from a gas mixture by pure water at 303 K and 1.013x105Pa. The inlet gas contains 6 mol % SO2and the outlet 0.3 mol% SO2.The tower cross-sectional area of packing is 0.426 m2. The inlet gas f ...

In a space mission to mars it is needed to equ ip the

In a space mission to Mars, it is needed to equ ip the research robot with a singl e mode l aser to make sample absorbance/transmittance analysis to identify the unkno\vn gases. Assume that all types of lascrs (e.g. gas, ...

The liquid effluent from a paper and pulp stream of 600 mgl

the liquid effluent from a paper and pulp stream of 600 mg/l is to be treated in a stabilization pond of 1.25 m deep, with an average rate time of 25 days . the working temperature is 25 oc. . the system rate constant at ...

A four-pole dc generator is lap wound with 326 armature

A four-pole dc generator is lap wound with 326 armature conductors. It runs at 650 r/min on full load, with an induced voltage of 252 V. If the bore of the machine is 42 cm in diameter, its axial length is 28 cm, and eac ...

E1 in a flume a wave travels towards upstream direction how

E1. In a flume, a wave travels towards upstream direction. How do you classify the flow in this flume? Explain reasons for your decision? E2. When a smooth hump is installed across a flowing flume, free surface level dro ...

In this chapter we have discussed several different forms

In this Chapter we have discussed several different forms of lithography (i.e. photo, electron beam, x-ray, high energy ion beam). Why do companies like Intel keep developing new lithographic techniques? What is the wave ...

A young r amp d engineer at carron chemical company has

A young R & D engineer at Carron Chemical Company has synthesized a sensational new fertilizer made of just two interchangeable basic raw materials. The company wants to take advantage of this opportunity and produce as ...

Guaifenesin guaiacol glyceryl ether Guaifenesin (Guaiacol glyceryl ether,

Guaifenesin (Guaiacol glyceryl ether, 3-(2-Methoxyphenoxy)-1,2-propanediol, C10H14O4) is an expectorant that is found in cough medicines such as Actifed TM and Robitussin TM . U.S. 4,390,732 (to Degussa) describes a prep ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

A cola-dispensing machine is set to dispense 9 ounces of

A cola-dispensing machine is set to dispense 9 ounces of cola per cup, with a standard deviation of 1.0 ounce. The manuf

What is marketingbullwhat is marketing think back to your

What is Marketing? • "What is marketing"? Think back to your impressions before you started this class versus how you

Question -your client david smith runs a small it

QUESTION - Your client, David Smith runs a small IT consulting business specialising in computer software and techno

Inspection of a random sample of 22 aircraft showed that 15

Inspection of a random sample of 22 aircraft showed that 15 needed repairs to fix a wiring problem that might compromise

Effective hrmquestionhow can an effective hrm system help

Effective HRM Question How can an effective HRM system help facilitate the achievement of an organization's strate