Calculate the heat supplied from the outer surface, Mechanical Engineering

Assignment Help:

Consider laminar flow in a circular tubewith a fully developed velocity profile.Let the heat be added at a constant rate along the tube from  x+ =0  to  x+ =0.10 . Thereafter ,let the tube surface be adiabatic.Calculate and plot the tube surface temperature as a function of  x+.

Consider a concentric circular-tube annulus ,with outer diameter 2.5cm and inner diameter 1.25cm,in which the air is flowing under fully developed ,constant heat -rate conditions. Heat is supplied to the inner tube ,and the outer tube is externally insulated . The radiation emissivity of both tube surfaces is 0.8 .The mixed mean temperature of air at a particular point in question is 260 degrees centigrade. The inner- tube surface temperature at this point is 300 degC. What is total heat flux from the inner tube surface at this point? What is the outer tube surface temperature at this point ? What percentage of the heat supplied to the inner tube is transfered directly to the air, and what percentage indirectly from the outer surface ?

The reynolds number is sufficiently low that the flow is laminar . Assume that the air is transparent to the thermal radiation.


Related Discussions:- Calculate the heat supplied from the outer surface

Friction, FRICTION: you have learnt laws of friction and problems invo...

FRICTION: you have learnt laws of friction and problems involving dry friction. The relative sliding motion of one body on another body is resisted by forces called as frictio

How cad system communicate with control system, How CAD system communicate ...

How CAD system communicate with control system The concept of a universal data exchange system is depicted in figure. In this figure, it is shown how various CAD systems commun

Stenght of Material, Give the assumption of pure torsion derivation of shea...

Give the assumption of pure torsion derivation of shear stress produced in circular shaft subjected to torsion

Fluid mechanics, a petrol tanker uses gravity to empty its 35kl tank in to ...

a petrol tanker uses gravity to empty its 35kl tank in to an underground storage tabk. the hose that is used has a roughness equivalent to galvanised iron, has an internal diameter

Camprofile, knifer edge follower program in java

knifer edge follower program in java

Intermodular piping connections, Q. Intermodular Piping Connections Ali...

Q. Intermodular Piping Connections Alignment of pies shall be achieved as detailed in the construction drawings. Special attention shall be paid to the alignment and installati

What are advantages and limitations of job evaluation, a) Describe producti...

a) Describe productivity. Give comparison of production and productivity. b) Write down characteristics of batch production. c) What are advantages and limitations of job eva

Forecasting system outputs, Forecasting System Outputs: In a company, ...

Forecasting System Outputs: In a company, inventory level is reviewed biweekly. If the parts used in an assembly have the lead time of one and a half week, what period should

Main characteristics of couple - mechanics, Main characteristics of couple:...

Main characteristics of couple: Sol.: The main characteristics of couple 1. The algebraic sum of the forces, having the couple, is zero. 2. The algebraic sum of moment

Critical euler axial compression stress, Determine the minimum critical Eul...

Determine the minimum critical Euler axial compression force,  Pcr and the minimum critical Euler axial compression stress, cru, for the column below which is pinned at the top and

Write Your Message!

Captcha
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!

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