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A blood warmer is to be used during the transfusion of blood to a patient. This device is to heat blood taken from the blood bank at 10°C to 37°C at a flow rate of 200 ml/min. The blood passes through tubing of length 2 m, with a rectangular cross section 6.4 mm × 1.6 mm At what rate must heat be added to the blood to accomplish the required temperature increase? If the fluid originates from a large tank with nearly zero velocity and flows vertically downward for its 2-m length, estimate the magnitudes of kinetic and potential energy changes. Assume the blood's properties are similar to those of water.
a cnc drill press is to perform a series of through-hole drilling operations on a 1.75 in thick aluminum plate. each
Consider the locomotive wheel sketched in Figure 8.30. Assuming the wheel rolls without slipping and the piston moves only horizontally, derive the kinematic relationship between the velocity of a point on the piston and the velocity of the train
a high pressure axial compressor for a jet engine rotates at 15000 rpm with an overall stagnation pressure ratio of
a vertical jet of water leaves a nozzle at a velocity of 10 ms and a diameter of 20 mm. it suspends a plate having a
Assume the power entering a section of the waveguide is Po and calculate the power loss as a percentage of this power.
We are concerned about carbon content in steel. It has a direct effect on the yield and tensile strength of what is formed in what is called a hot rolled condition directly from the steel production facility. 1010 steel has a yield strength of 180MPa..
the irreversible gas phase reaction a --gt 2b is conducted in an isothermal batch reactor. the reactor is charged with
What is the driving force for steady-state known that the concentration of nitrogen in the steel at the high-pressure surface is 2 kg/m3. How far into the sheet from this high pressure side will the concentration be 0.5 kg/m3? Assume a linear con..
Calculate the resistance coefficient K for a ball-type check valve placed in a 2-in Schedule 40 steel pipe if water at 100°F is flowing with a velocity of 10 ft/s.
determine the shortest time possible for the rear wheel drive 2 mg truck to achieve a speed of 16 ms with a constant
a steam power plant operates on an ideal regenerative rankine cycle with two open feedwater heaters. steam enters the
Refrigerant R134a is compressed under steady conditions from a saturated vapour at 100 kPa to 500 kPa. The compressor’s isentropic efficiency is 85%. Heat losses from the compressor can be ignored, as can kinetic energy and potential energy effects.
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