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A device for performing boiling experiments consist of a copper bar (k = 400 W/m · K), which is exposed to a boiling liquid at one end, encapsulates an electrical heater at the other end, and is well insulated from its surroundings at all but the exposed surface. Thermocouples inserted in the bar are used to measure temperatures at distances of x 1 = 10 mm and x 2 = 25 mm from the surface.
discuss how the steam power plant steam engine rankine cycle can control the speed of the vehicle during acceleration
At a particular location a hot spring is available to provide a heat source for a vapor power cycle of a power station and not far away a melt water river from a glacier is available to provide a heat sink. the hot spring has a flow of 1500 liters/se..
The electronic components of a computer are cooled by air flowing through a fan mounted at the inlet of the electronic enclosure. At steady state, air enters at 18oC, 1 atm. For noise control, the velocity of the entering air cannot exceed 0.9 m/s. F..
air from a line at 12 mpa 15 deg c flows into a 500-liter rigid tank that initially contains air at 100 kpa and 15 deg
a system executes a power cycle while receiving 800 kj by heat transfer at a tem-perature of 1600 k and discharging 120
If there were a carbon tax of $250/ton of CO2 on fossil fuels, estimate the increase in the price of a barrel of oil. The density of oil is assumed to be 803 kg/m3. Use C8H18 for oil.
an accelerometer was used to measure the vibrations of machinery. the sensor output was acquired during an experiment
0.64 lbm of saturated liquid water at 10 psia absorbs a constant 3.5 kW of energy from an electrical resistance heater in an isobaric process; until the water reaches a temperature of 200 F. a) how long did this take? Minutes b) what was the initial ..
Water at 40 degrees Fahrenheit (p=62.42 lbm/ft3 and u= 3.74 lbm/ft. hr) is flowing through a 0.12 in (0.01 ft) diameter 30 ft long horizontal pipe steadily at an average velocity of 3 ft/s. Determine the head loss, pressure drop, and the pumping powe..
A meteorologist uses a pitot -static tube to measure the wind speed in a tornado. Based on the damage caused by the storm, the tornado is rated as EF5 on the enhanced Fujita Scale. This means that the wind speed is estimated to be in the range of 261..
Steam at 500oF and 50 psi is fed at the rate of 1 lbm/sec to an adiabatic compressor where its pressure is raised reversibly to 650 psia. Use data from the steam table to determine the changes in the enthalpy and entropy of the steam in the compressi..
Calculate the cost per piece of a milling operation that is used to machine a pocket of 2”x3”x0.5” (LxWxD). The material being machined is high silicon aluminium. The tool material is PCD.
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