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

Illustrates about the need for reinforcement, Illustrates about the need fo...

Illustrates about the need for reinforcement? NEED FOR REINFORCEMENT Concrete is economical and durable and is currently universally utilized for footings. Plain concrete is

Materials requirements planning, Materials requirements planning: Mate...

Materials requirements planning: Materials requirements planning (MRP) is a set of process for converting forecasted demand for a manufactured product into a requirement sched

Describe split pattern or two piece pattern, Split pattern or two piece pat...

Split pattern or two piece pattern This is the most widely used type of pattern for intricate castings. When the contour of the casting make sits withdrawal from the mould diff

What is clad plate and overlay welding, Q. What is Clad plate and overlay w...

Q. What is Clad plate and overlay welding? Strip back cladding on clad plate a minimum of 5 mm (3/16") from the edges of weld preparation before welding on the backing plate.

Find the value of force to move a system, Find the value of force to move a...

Find the value of force to move a system: Th e system of particles shown in the figure given below is initially at rest. Find the value of force F which should be applied so

What are wall footings, What are wall footings? Explain in short. Gener...

What are wall footings? Explain in short. Generally wall footings are required to support direct concentric loads. However, an exception is the wall footings for retaining wall

Mr, I need rewording

I need rewording

Explain the welding process, All shell and head joints shall be double-weld...

All shell and head joints shall be double-welded butt joints with full penetration. In cases where double welding is impractical, the root pass shall be made by the GTAW process.

Centre of gravity and moment of inertia, Centre of Gravity and Moment of In...

Centre of Gravity and Moment of Inertia: -  For a uniform plate of mass M, the overall mass may be divided into individual masses M i for which centre of gravity is known as

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