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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
An engine burns 200 cubic feet per hour of natural gas with a heating value of 1000 btu/cubic feet. The engine produces 39.1 horsepower for this test. What is the average efficiency for this test? At what rate (btu/h) is heat rejected from this engin..
the manometer shown above in problem 1 above contains water and kerosene. with both tubes open to the atmosphere, the free surface elevations differ by H=20mm determine the elevation difference when a pressure of 98.0 Pa is applied to the right.
Air enters an adiabatic compressor at 0.1 kg/s, 100 kPa, 25 °C and exits at 700 kPa. (a) Draw a schematic of the system. Determine (b) the minimum power input (kW) and (c) the entropy generation rate (kW/K)
Calculate the change in velocity required in changing the position of a satellite in an orbit by 90 degrees. The initial and final orbit is circular around the Earth with a 15000 km radius. Calculate the delta velocity, semi-major axis and period for..
a condenser condenses saturated water vapor at 100 kpa to a saturated liquid. the steam enters at 3 ms and exits at 100
Determine the maximum tensile stress #t in the angle section.
a base for a building column measures 18.0 in by 18.0 in on a side and 12.0 in high. compute the cross-sectional area
air enters a compressor at 105 kpa and 300 k with a volumetric flow rate of 12 m3min and exits at 1200 kpa and 400 k.
a steady incompressible two-dimensional velocity field is given byvuv12.5xyi-.5-1.5x-2.5yjwhere the x- and
the initial velocity v0 of a hockey puck is 105 mih. determine a the largest value less than 45deg of the angle a for
a storage tank holds 75 cubic meters of a gas at 28deg c and a pressure of 130kpa. the gas appears to have a molecular
Air is initially at a temperature of 500 K and a pressure of 100 kPa. A process occurs so that the specific internal energy of the air increases by 200 kJ/kg (i.e. u2 - u1 = 200 kJ/kg). Modeling the air as an Ideal Gas, determine the final temperatur..
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