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

Reinforced concrete design, You are tasked with the analysis and design of ...

You are tasked with the analysis and design of the gravity and wind framing system for a 6-story office building. A part plan of the building is attached.  The plan dimensions o

What are commercial aircraft mfg key success factors, Conduct an industry &...

Conduct an industry & a 5-Forces analysis for BOEING AND AIRBUS. w/focus on commercial aircraft mfg (Hint: extend POV to travel preferences now & future, & review BOE/Air's POVs on

Force exerted by jet of water on a fixed semi-circular plate, Show that the...

Show that the force exerted by jet of water on a fixed semi-circular plate in the direction of jet when the jet strikes at the centre of the semi-circular plate is two times the fo

Elements of cad, Human Factor : The human factor is the key factor in th...

Human Factor : The human factor is the key factor in the success of CAD system. This concerns the training of the designer or the engineer without whom the CAD system become

Describe about water disposal system, Q. Describe about Water disposal syst...

Q. Describe about Water disposal system? Disposal water from the Evaporator Package is cooled down to 50°C by the Disposal Cooler and is sent to Disposal Water Tank(s). Disp

Find out the forces in the members of the tower, Find out the forces in the...

Find out the forces in the members of the tower: Find out the forces in the members of the tower. Solution By symmetry, ∠ AFG = ∠ AGF = θ and HG = 7.5 m; while AH = 3

Define essentials of milling fixture, Define Essentials of Milling Fixture?...

Define Essentials of Milling Fixture? Strength of withstand heavy forces. Thrust should be directed towards a strong, solid structure. Cutter setting piece should b

Define inversion of a mechanism, Define Inversion of a mechanism ? Illustra...

Define Inversion of a mechanism ? Illustrate in detail about any three of the Inversions of the single slider crank chain Mechanism. (a) What do you understand by Degree of Free

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