User Account

All Pages

A computer cooled by a fan contains eight pcbs each

Assignment Help Mechanical Engineering
Reference no: EM13626538

A computer cooled by a fan contains eight PCBs, each dissipating 10W power. The height of the PCBs is 12 cm and the length is 18 cm. The cooling air is supplied by a 25 W fan mounted at the inlet. If the temperature rise of air as it flows through the case of the computer is not to exceed 10 C, determine (a) the flow rate of the air that the fan needs to deliver and (b) the fraction of the temperature rise of air that is due to the heat generated by the fan and its motor.

Reference no: EM13626538

Questions Cloud

What is the moment of inertia of the object about an axis : an object is formed by attaching a uniform thin rod with a mass of mr 6.69 kg and length l 5.44 m to a uniform sphere
Steam flows steadily through an adiabatic turbine the inlet : steam flows steadily through an adiabatic turbine. the inlet conditions of the steam are 10 mpa 450 c and 80 ms and the
A distribution of prewashed shredded lettuce is opening a : a distribution of prewashed shredded lettuce is opening a new plant and considering whether to use a mechanized process
A natural gas has the following composition all values : a natural gas has the following composition all values being in volumetric percentmethane ch4 83.5ethane c2h6
A computer cooled by a fan contains eight pcbs each : a computer cooled by a fan contains eight pcbs each dissipating 10w power. the height of the pcbs is 12 cm and the
A concave mirror has a radius of curvature of 134 cm if a : a concave mirror has a radius of curvature of 13.4 cm. if a pointlike object is placed 8.31 cm away from the mirror on
An 800 ft ship has a displacement of 37600 tons and the : an 800 ft ship has a displacement of 37600 tons and the area defined by the waterline is 38000 ft2. a will the ship
An air-conditioner with refrigerant 134a as the working : an air-conditioner with refrigerant 134a as the working fluid is used to keep a room at 26 c by rejecting the waste
Two satellites with equal rest masses of 100 kg are : two satellites with equal rest masses of 100 kg are traveling toward each other in deep space. they have identical

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  An automobile traveling at 30 miles per hour on level

an automobile traveling at 30 miles per hour on level pavement with a coefficient of kinetic friction of 0.6. weighs

  A following process expands the gas at constant pressure to

a helium gas is heated at constant volume from 100kpa 300k kelvin to 500k. a following process expands the gas at

  It is known that the normal stress is 68 mpa and the shear

the rotor shaft of a helicopter drivesd the rotor blades that provide the lifting force and is subjected to a

  Air flows along a horizontal curve streamline with a curve

air flows along a horizontal curve streamline with a curve 20 ft raduis with a speed of 100fts. determine the pressure

  Assume that the actual density of the washers is 781 gcm3

explain in your own words what standard deviation is and why it is useful when describing experimental data. 2. what

  Your discussion needs to cover the following design

discuss the sequence of events in an antilock braking system such that the utilization of tireground available adhesion

  Determine the magnitude t of the applied torque

The tank has a 180 mm inside diameter and a 12 mm wall thickness. Knowing that the tank contains compressed air under a pressure of 8 MPa, determine the magnitude T of the applied torque for which the maximum normal stress in the tank is 75 MPa.

  What would the person weigh on the moon

The acceleration due to gravity at sea level is g = 9.81 m/s2 . What is the person"s weight at sea level? The acceleration due to gravity on the moon is g = 1.62 m/s2 . What would the person weigh on the moon?

  100 cubic feet of an ideal gas goes from a pressure of 20

100 cubic feet of an ideal gas goes from a pressure of 20 psig and temperature of 80 deg f to a pressure of 100psig and

  Calculate net positive suction head (npsh) for the system

A pump station has been designed to lift water out of a 6 metre deep pit (vented to atmosphere) via a centrifigual pump mounted at ground level.   Calculate the Net Positive Suction Head (NPSH) for the system ?

  Estimate the minimum bar diameter to prevent fatigue failure

Estimate the minimum bar diameter to prevent fatigue failure.

  When a force is transferred to another point of the body

when a force is transferred to another point of the body indicate which of the following quantities remain unchanged

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