Thermal conductivity-ceramics-refractory , Mechanical Engineering

Assignment Help:

Thermal Conductivity

The amount of heat passing throughout unit cross-section of a solid material in unit time for unit thermal gradient is termed as thermal conductivity. The units of thermal conductivity are as: JH/m/s/K or else W/m/K. The heat conduction arises from higher temperature to lower temperature such is opposite to direction of thermal gradient.

The thermal conductivity in solid material is because of:

i.  Elastic vibration of atoms or molecules whereby energy is transmitted in from of kinetic energy of vibrating units, and

ii. Movement of electrons.

Given figure shows the variation of thermal conductivity throughout temperature for metallic materials.

                                                         450_Thermal Conductivity.png

                                   Figure: Thermal Conductivity of Metals varying with Temperature


Related Discussions:- Thermal conductivity-ceramics-refractory

Kinematics and Dynamics of Machinery, I have Four (4) questions related to ...

I have Four (4) questions related to Kinematics and Dynamics of Machinery . I need them exactly after 30 hours. Thanks and please do let me know.

Measurement of brake power by prony brake dynamiter, a) Illustrate with nea...

a) Illustrate with neat and clean diagram the measurement of brake power by prony brake Dynamiter OR Belt transmission type Dynamiter. b) A torsion dynamometer is fixed to a pro

Control , hey i really need someone to help doing my control course work as...

hey i really need someone to help doing my control course work asap cuse it is due sunday it is about Control of water level in a nonlinear ‘V’ shaped tank

Alloy steels, Alloy Steels: Carbon steels in their commercial forms al...

Alloy Steels: Carbon steels in their commercial forms all times comprise specific amounts of other elements. A lot of of these elements enter the steel from the ores and it is

Deflection, determine the vertical deflection at end A neglecting shear

determine the vertical deflection at end A neglecting shear

Sales incentives-AUTOMOBILES INDUSTRY GROWTH , Sales incentives , introduct...

Sales incentives , introduction of new models as well as variants coupled with easy availability of low cost finance with comfortable repayment options continues to drive demand an

Governor, spring combined gravity governor

spring combined gravity governor

Marshalling yard, Marshalling Yard: Function The marshalling ...

Marshalling Yard: Function The marshalling yard is a facility where goods wagons are sorted out for being dispatched to different stations. After being sorted out, th

Equivalent force f - mechanics, If Equivalent force F and F acting on rigid...

If Equivalent force F and F acting on rigid body are not in line Sol.: If equivalent force of same magnitude 'F' acting on the rigid body are not in line, then there is no c

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