User Account

All Pages

thermal systems, Mechanical Engineering

Assignment Help:
A motor coil can be modeled as a hollow copper cylinder with an outer diameter
of 50 mm, an inner diameter of 40 mm, and a length of 60 mm. The motor stalls
at time t ¼ 0 and, at this point, the copper experiences a step input in electrical
heating of P0  u(t), where P0 is 350 W. Assume that there is little time for
significant heat loss to the environment so that the copper cylinder can be
considered to be insulated. If the initial temperature is 30 C, find the temperature as a function of time, T(t), analytically using Laplace transforms. Calculate
the time required to reach the breakdown temperature of the wire insulation,
which is approximately 250 C. Write a script file in MATLAB® to: (a) determine
the time for the copper to reach 250 C using the command find; and (b) plot T(t)
over this time interval. Copper has a density of 8960 kg/m3 and a specific heat of
390 J/kg-C.

Related Discussions:- thermal systems

Moment of inertia.., mathematical expression of moment of inertia

mathematical expression of moment of inertia

Find increase in the length of bar, Find increase in the length of bar: ...

Find increase in the length of bar: Q: Find increase in the length of bar of uniform section because of self weight. Sol.: Take a bar of cross sectional area A and leng

Determine about the pier and well foundations, Pier and Well Foundations ...

Pier and Well Foundations Pier foundations are used when the loads to be transmitted are heavier than loads those can bc acconlplished by piles. They are essentially bearing i

Setting and installations of insulation, Q. Setting and installations of in...

Q. Setting and installations of insulation? The setting and installations of insulation shall be to Specification No. later. The steam drum surfaces shall be insulated with

IC engines, How does an Ignition system works ?

How does an Ignition system works ?

Shells, SHELLS: In the topic (SHELLS) , we have seen the assumptions ...

SHELLS: In the topic (SHELLS) , we have seen the assumptions made in the analysis of thin shells. For a spherical shell, which is symmetrical in all of the directions, the ho

Shear force and bending moment diagrams and contra flexure, Draw the shear ...

Draw the shear force and bending moment diagrams for the beams shown in Figures 4 and 5. Also find the maximum shear force, bending moment and the points of contra-flexure

Theory of machines, Klien''s construction diagram

Klien''s construction diagram

Determine root of equation, Determine root of equation xe x = cosx by Mull...

Determine root of equation xe x = cosx by Muller's method. Solve the following equations by Matrix Inversion method.

Find velocity of the vehicle, Find velocity of the vehicle: A car hav...

Find velocity of the vehicle: A car having mass 400kg is moving with velocity of 20m/sec. A force of 200N that acts on it for 2 mins. Find velocity of the vehicle: (1) W

Write Your Message!

Captcha
Order Assignment

Featured Services

Order Now

Popular Subjects

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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