User Account

All Pages

Estimate the surface temperature of the chip

Assignment Help Mechanical Engineering
Reference no: EM13880499

Forced air at 25°C and 10 m/s is used to cool electronic elements mounted on a circuit board. Consider a chip of length 4 mm and width 4 mm located 120 mm from the leading edge. Because the board surface is irregular, the flow is disturbed and the appropriate convection correlation is of the form Nux = 0.04Rex0.85 Pr0.33.

1202_appropriate convection correlation.jpg

Estimate the surface temperature of the chip, Ts, if its heat dissipation rate is 30 mW.

Reference no: EM13880499

Questions Cloud

Expression for the temperature : Heat is generated uniformly in the fuel rod of a nuclear reactor. The rod has a long, hollow cylindrical shape with its inner and outer surfaces at temperatures of Ti and To, respectively. Derive an expression for the temperature distribution.
The amount of the lease liability : what would be the amount of the lease liability that the lessee would report in its balance sheet at the end of the first year? What would be the interest payable?
How will managers of a monopolistically competitive firm : How will managers of a monopolistically competitive firm decide on the optimal level of production? Elucidate.
Is it unusual for a team to win a series in five games : Assume that there is a 0.15 probability that a basketball playoff series will last four games, a 0.30 probability that it will last five games. Is it unusual for a team to win a series in 5 games?
Estimate the surface temperature of the chip : Estimate the surface temperature of the chip, Ts, if its heat dissipation rate is 30 mW.
Common features of the currency crises of the 80s and the 90 : Mention two common features of the currency crises of the 80's and the 90's.
Its income statement for the first year ended : 1.In the situation described in BE 15-17, what would be the pretax amounts related to the lease that the lessee would report in its income statement for the first year ended December 31?
Prepare a classified balance sheet at september : Prepare a classified balance sheet at September 30, 2013. Using the balance sheet, indicate whether the total assets of Facebook Inc. at the end of the year were financed primarily by liabilities or stockholders, equity. Were the current assets suffi..
The balance sheet accounts related to the lease : 1.In the situation described in BE 15-15, what will be the balances in the balance sheet accounts related to the lease at the end of the first year for Crescent (ignore taxes)?

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  What is the biot number of this cooling situation would

an aluminum cube initially at 400oc with a dimension of 2 cm on each side is cooled using 30oc air with a convection

  If all the doors and windows are closed will the room that

consider two identical rooms one with a refrigerator and one without one. if all the doors and windows are closed will

  Transport theorem is required in context of aircraft dynamic

Using the transport theorem approach, derive the conservation of linear momentum equations. State all assumptions. Why the transport theorem is required in the context of aircraft dynamics?

  The motion of a linkage in a mechanical system is examined

the motion of a linkage in a mechanical system is examined by engineers. it has been determined that the velocity of an

  Steam flows steadily through an adiabatic turbinethe inlet

steam flows steadily through an adiabatic turbine.the inlet conditions of the steam are 6 mpa400 degree celcius and 80

  Suddenly the electronic device is energized such that a

an electronic device such as a power transistor mounted on a finned heat sink can be modeled as a spatially isothermal

  Effective mass of electrons in a conduction band

Since the effective mass of electrons in a conduction band decreases with increasing curvature of the band according to eq. (3-3), comment on the electron effective mass in the Valley of GaAs compared with the indirect X or L valley.

  How much petroleum coke must be added per 100 lb of basic

a particular manufacturer of charcoal briquettes is contracted to create a product that contains no more than 0.1 mass

  If an actual heat pump requires 10 kw of power input for

a carnot heat pump refrigerator operates between -7 and 29 . it has an input power of 3.5kw. determine a the

  Steam steadily flows through turbine to produce mechanical

Steam steadily flows through a turbine to produce mechanical work. At the inlet, the pressure, temperature and velocity of the steam are 10 MPa, 450 °C and 110 m/s, respectively. The water exits this turbine at pressure of 10 kPa with the quality of ..

  Insulated piston-cylinder-determine voltage of the soured

An insulated piston-cylinder device contains 7L of saturated liquid water at a constant pressure of 175 kPa. Water is stirred by a paddle wheel while a current of 6.2A flows for 75 min through a resistor placed in the water. If one half of the liquid..

  A closed system undergoes a reversible process from 220 k

a closed system undergoes a reversible process from 220 k to 440 k with the heat transferred per degree of temperature

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd