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

Amounts of hardness in mg per l are asmgso4120 cano32164

amounts of hardness (in mg per l) are asmgso4=120 ca(no3)2=164 cacl2=222 mg(hso4)2=73 lime and soda are of 74% and 73% purity respectively. find the amount of lime & soda req. to soften the water

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 ...

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 2-m3 tank initially contains a mixture of saturated-vapor

A 2-m3 tank initially contains a mixture of saturated-vapor steam and saturated-liquid water at 3000 kPa. Of the total mass, 10% is vapor. Saturated-liquid water is bled from the tank through a valve until the total mass ...

Write a computer program that implements the estimation of

Write a computer program that implements the estimation of a first-orderplus-dead-time transfer function with the tangent method and then determine the PID parameters using the Ziegler-Nichols formula. Apply the program ...

Steam enters a converging nozzle at 800 kpa and 55315 k

Steam enters a converging nozzle at 800 kPa and 553.15 K (280°C) with negligible velocity. If expansion is isentropic, what is the minimum pressure that can be reached in such a nozzle and what is the cross-sectional are ...

An experiment involves heating a very small sphere that is

An experiment involves heating a very small sphere that is suspended by a fine string in air with a laser beam in order to induce the highest sphere temperature possible. After inspecting Equation 9.64, a research assist ...

Two stirred tanks of volume v and 2v are available for

Two stirred tanks of volume "V" and "2V" are available for carrying out a first order irreversible reaction at constant density and temperature. If the flow rate of feed stream is "Q" which of the following arrangement w ...

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 horizontal 100-mm-diameter pipe passing hot oil is to be

A horizontal 100-mm-diameter pipe passing hot oil is to be used in the design of an industrial water heater. Based on a typical water draw rate, the velocity over the pipe is 0.5 m/s. The hot oil maintains the outer surf ...

  • 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