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

A stream of ethylene gas at 52315 k 250degc and 3800 kpa

A stream of ethylene gas at 523.15 K (250°C) and 3800 kPa expands isentropically in a turbine to 120 kPa. Determine the temperature of the expanded gas and the work produced if the properties of ethylene are calculated b ...

Potential difference and resistance a conducting sphere of

Potential difference and resistance. A conducting sphere of radius a, with conductivity u is cut into two hemispheres. Then, each hemisphere is trimmed so that it has a flat surface on top and the two sections are connec ...

Question 1 a give three examples for each of natural free

Question 1. (a) Give three examples for each of natural (free) convection and forced convection which occur in industrial processes. (b) The Grashof number and the Reynolds number appear in most correlations of experimen ...

A process plant making 2000 tons per year of a product

A process plant making 2000 tons per year of a product selling for $0.80 per lb has annual direct production costs of $2 million at 100 percent capacity and other fixed costs of $700,000. What is the fixed cost per pound ...

A draw an arbitrary closed contour on figure 711 and show

(a) Draw an arbitrary closed contour on Figure 7.11 and show that it yields zero net flow of current. (b) Suppose a capacitor is inserted into the circuit instead of any of the resistors and the current is switched on. D ...

Q1 water is used to absorb the vapor of methanol at 300 k

Q1. Water is used to absorb the vapor of methanol at 300 K and 101.325 kPa. The concentration of methanol in both gas and liquid phases are very low, with the equilibrium relation following Henry's Law. The known paramet ...

For the inertial system governed by the differential

For the inertial system governed by the differential equation design a feedback controller to stabilize the system and reduce the percentage overshoot below 10% with a settling time of less than 4 s.

A well is producing from a saturated oilreservoir with an

A well is producing from a saturated oilreservoir with an average reservoir pressureof 3000 psig. Stabilized flow test dataindicates that the well is capable of producing400 STB/day at a bottom-holeflowing pressure of 25 ...

A potential flow source having an intensity of 10m2s placed

A potential flow source having an intensity of 10m2/s, placed in the point of Cartesian coordinates (1;0), and a sink having identical intensity, placed in the point (-1;0), are combined with a uniform flow at 25 m/s, in ...

1 what is the difference between closed and isolated

1) What is the difference between closed and isolated systems? 2) Is it true that thermodynamic equilibrium is reached very rapidly (a few seconds or less) in any system? Justify your answer or provide examples that supp ...

  • 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

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro