Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
You are a thermal design engineer and plan to design cooling solution for a computer chip. As a basic design, a chip (K_c=50W/m-K) is mounted in a dielectric substrate (K_s=5.0 W/m-k) and one surgace of the system is convectively cooled, while the remaining surfaces are well insulated from the surroundings. It is reasonably assumed that the system to be very long in the direction perpendicular to the paper, so it is a 2D problem. Under steady state, electric power dissipation in the chip provides for uniform volumetric heating at a rate of q_dot=1.5x10^7 W/m^3. You are limited to forced air convection cooling with h=250 W/m^2-K and T_surr=40 Degrees Celsius. However the chip should not be allowed to rise above 85 degrease Celsius.
a) Solve for the temperature distribution within the chip and diateletect mount using finite-difference method. A grid spacing of 3mm is suggested. (Note that a symmetry condition exists.) Provide all discrete nodal equations (one for each different kind of node), and show their dedications.
b) Create a T-x plot for each row of nodal network (in one plot). Check if the package meets the industrial requirements (max temp of 85 degrees Celsius), you will find that the temperatures within the chip easily rise higher than the requirement.
according to data provided by motor trend the 2011 chevrolet silverado diesel hd is powered by an 8 cylinder diesel
Air at a pressure of 1 ATM, a temperature of 15° C, and a velocity of 10 m/s flows over a 3 m long flat plate that is heated to a uniform temperature of 140° C. What is the local heat transfer coefficient 3m from the leading edge of the plate?
calculate the energy efficiency of a continuous glass melter that uses room temperature air for burning methane gas.
A successive approximation ADC has 4 bits and a reference voltage of 10 V. If the input voltage is 2.8 V, describe each step the ADC undergoes to determine the value of the 4 bits. What input voltage will be computed by the ADC?
which of these two processes will produce the largest amount of work? (You must provide a full explanation for your choice).
consider some hypothetical x - y - ion pair for which the equilibrium interionic spacing and bonding energy values are
figure 2 gives a pictorial view of a slotted guide. draw the following views in third angle ltbrgtprojection. ltbrgta a
what is the reason for the change in enthalpy between the throttle valve and the evaporator in a practical refrigeration cycle that is using R12 refrigerant.
a brinell hardness measurement using a 10-mm diameter indenter and 300 kg load produced an indentation 1.5 mm in
Calculate the resistance in the following 100 km transmission line with the given parameters. -The power that needs to be transmitted is 1,000 MW - the power that is lost is 40 MW - the voltage is 345 kV
a piston d50mm sits on top of a fluid s.g.11 connected to a 10mm diameter tube open to the atmosphere. a if the fluid
a 20-mm diameter rod made of a ductile material with a yield strength of 350 mpa is subjected to torque of 100 n.m and
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!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd