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

Trignometric, what is sin2P ,if angle q is 90 degree.

what is sin2P ,if angle q is 90 degree.

Submerged arc welding, SUBMERGED ARC WELDING The optimum performance of w...

SUBMERGED ARC WELDING The optimum performance of welded vessels and structures in service have led to the full exploitation of automatic welding processes. This arc welding is on

Rapid prototyping, Give justification toward the development of rapid proto...

Give justification toward the development of rapid prototyping?

Control function in production management, Control Function in Production M...

Control Function in Production Management: Controlling is a sub system of the production system where a part of the output is monitored for feedback signals to give corrective

Find out the power - hollow shaft, Find out the power - hollow shaft: ...

Find out the power - hollow shaft: A hollow shaft of internal diameter 400 mm & external diameter 450 mm is needed to transmit power at 120 rpm. Find out the power it may tran

Define principal process for electron beam machining, Define Principal Proc...

Define Principal Process for Electron Beam Machining A beam of electrons is emitted from the electron gun which is basically following three points. 1. A cathode whic

About learning software''s, I am am Mtech student of Machine design and I a...

I am am Mtech student of Machine design and I am willing to join some core companies so is this the right time for learning some software''s if yes which are they...

Determine airy stress functions, Determine whether the following functions ...

Determine whether the following functions can be used as Airy stress functions, if so what kind of stress states they present    a) ? = 20y 3        b) ? = 3y 2 +4x 3 y c

Define the process of submerged arc welding, Define the process of SAW (sub...

Define the process of SAW (submerged Arc welding). And also explain its advantages and disadvantages.

Determine the efficiency of bell coleman cycle, (a) Derive a mathematical e...

(a) Derive a mathematical expression to determine the efficiency of Bell Coleman Cycle. (b) A dense air refrigeration cycle acts between pressures of 4 bar and 16 bar. The air t

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