A hollow sphere is constructed of aluminum with an inner

Assignment Help Mechanical Engineering
Reference no: EM13625062

A hollow sphere is constructed of aluminum with an inner diameter of 4 cm and an outer diameter of 8 cm. The inside temperature is 100 C and the outer temperature is 50 C. Suppose the sphere is covered with a 1-cm layer of an insulating material having k= .05 W/m C and the outside of the insulation is exposed to an enviroment with h= 20 W/m2 C and T∞ = 10 C. The inside of the sphere remains at 100 C. Calculate the heat transfer under these conditions.

Reference no: EM13625062

Questions Cloud

A survey finds that 55 people out of 170 favor increasing : a survey finds that 55 people out of 170 favor increasing property taxes to help pay for a new library. if this data is
An adiabatic control volume with steam as the working fluid : an adiabatic control volume with steam as the working fluid operates at steady flow conditions with the inlet state of
Suppose a population consists of n pairs of people meaning : suppose a population consists of n pairs of people meaning there 2n people in the population. suppose k of the people
A student in the concrete lab places 5 low-strength : a student in the concrete lab places 5 low-strength concrete test cylinders 3500 psi with a batch of 8 high-strength
A hollow sphere is constructed of aluminum with an inner : a hollow sphere is constructed of aluminum with an inner diameter of 4 cm and an outer diameter of 8 cm. the inside
You are invited to play the following game you may : you are invited to play the following game. you may repeatedly roll a fair six-sided die unless you roll a one at which
Vector s makes angle of 45 degree with x-axis and 60 : vector r makes angle of 30 degree with x- axis and 70 degree with y-axisand it is in the positive octant. vector s
What is the limitation on the thickness of specimens for a : 1how do the rockwell and brinell tests actually measure hardness ? give any appropriate sketches and formula. are there
What is the difference in path lengths from the two slits : in a youngs double-slit experiment a set of parallel slits with a separation of 0.102 mm is illuminated by light having

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  Explain a gear blank has been successfully hot forged

A gear blank has been successfully hot forged on a mechanical press in a closed die. At the beginning of a new production run

  The liquid condensate is removed from the system at 60o f

atmospheric air at 90o f and 60 relative humidity flows over a cooling coil at an inlet volumetric flow rate of 2000

  Determine the equation which describes the motion what is

a spring is stretched 200mm by a 15kg block. if the block is displaced 100mm downward from its equalibrium position and

  The material reaches plastic deformation at a third of the

a specimen of material a in a tension test elongates from an original length of 2.2 to a length l uniformly after which

  Find athe velocity when x2meters b the position were the

the acceleration of a particle is defined as a25-3x2 a is expressed in msec2 and x is in meters. the particle starts

  Consider a model of a bone with a cemented prosthesis where

consider a model of a bone with a cemented prosthesis where the outside radius of the bone is ro the radius of the

  The model pump has am impeller diameter of 10 cm and a

a 15 scale model of centrifugal water pump was tested. the model pump has am impeller diameter of 10 cm and a rotation

  An irregularly shaped object weighs 100 lb in air and 64

an irregularly shaped object weighs 100 lb in air and 64 lb when fully submerged in water. determine the volume and

  The value of the uniform wall temperature is equal to that

air flows in a round pipe at a rate of 0.015 lbmsec. the air enters the pipe at a temperature 76.8 of and a pressure

  Draw a central cross-section of the heat exchanger

Derive at least four concept designs to satisfy the given specification - draw a central cross-section of the heat exchanger

  A 12-kg solid whose specific heat is 28 kjkg degree c is

a 12-kg solid whose specific heat is 2.8 kjkg degree c is at a uniform temperature of -10 degree c. for an environment

  Draw the bar graph of probability vs outcome i can do

let x denote the sum of the face values of a die rolled twice i.e. the outcome of this experiment is the sum. assume

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