CVICU - Impella 2.5:CP - Technology Overview - Knowledge Check

Determine the output pressure of a compressor operating with the following data: a. Actual power required to drive the compressor is 20 kW. b. Overall efficiency of the compressor is 75%. c. Compressor delivers four standard m3/min. d. Compressor inlet pressure is 100 kPa abs.

1. Two pumps are connected in parallel, if Q1 is the discharge of pump 1 and Q2 is the discharge of pump 2, where Q2 > Q1, what is the discharge?A. Q1B. Q1 + Q2 c. Q2D. Q1-Q2 2. If Hi is the indicated horsepower and HB is the indicated brake horsepower of a compressor, then what is mechanical eficiency, Em, equal to? A. Em = HB/HiB. Em = Hi/HBC. Em = HB - HiD. Em = Hi -HB

2. Assemble and describe the operation of a simple piping system (with only one branch, or at most two branches) for the industrial process of alcohol and sugar. Use the following equipment: Pumps, valves, heat exchangers, pressure gauges, flow meters, elbows and flanges For this system, what would be the most appropriate pressures and flows?

solve a,b, c and d please. In a detergent-making process, 1400gal/h of water flows through a 2-inch pipe system as follows: Exit from pump, 2ft vertical, open gate valve, 14 ft vertical, 908 bend, 12ft horizontal, 1/4 open globe valve, 20ft horizontal, 908 bend, 6ft horizontal, 908 bend, 12ft vertical, 908 bend, 14ft horizontal, 908 bend, 4 ft vertical, 908 bend, 28ft horizontal, open gate valve, 3ft horizontal, entry to tank containing 30ft of liquid.  (a). If the pump and tank are both at grade level, estimate the head that the pump must deliver.  (b). If the pump inlet pressure is 25 psig, what is the outlet pressure?  (c). Estimate the pump shaft work ( d). If the pump is powered by an electric motor with 85% efficiency, what is the annual electricity consumption?

What is the required diameter in meters of a cylindrical tank which has a length of 3 meters used for oil storage that will supply the engine for 5 days having a fuel consumption of 60Kg/hour at 27 degrees API? Please Answer # 9. If you can answer # 10 it will be appreciated much and rated high. Thanks!

Match each of the steady-flow engineering devices with its best description:   Question 1 options:   A device that increases the pressure of a fluid by slowing it down   A device where two fluids exchange heat without mixing   A device that increases the velocity of a fluid at the expense of pressure   Increases pressure of gasses and vapors   Increases pressure for liquids   Increases the pressure of a gas slightly and is mainly used to mobilize a gas   Produces shaft work   A device where two or more fluids are mixed   1. Turbine 2. Fan 3. Compressor 4. Pump 5. Heat exchanger 6. Mixing chamber 7. Nozzle 8. Diffuser

pneumatic leverage refers to the ability of a pneumatic system to

13. Your body reduces blood flow to a region by vasoconstriction. The artery can be modeled as a cylinder with radius R and a length L, and one can consider only forces from pressure and tension forces in the muscle with surface tension constant y = or where r is the thickness of the muscle. A. R50 microns B. R 100 microns- C. R 200 microns. NORMAL ARTERY D. R-300 microns E. R 400 microns MUSCLE BOFLOW pressure forces from the blood Assuming that the pressure difference AP=10 kPa and a 200 kPa for a typical 10-micron muscle, what is the largest-size blood vessel for which such a muscle could still constrict the blood vessel? tension forces from muscle

1. We can measure the velocity of a flow by using a pitot tube. (True or False) 2. It is the study of the thermodynamic properties of air. 3. A pressure transducer that utilizes an elastic element that usually oval in shape. It is fixed on one end and the displacement caused by pressure at the free end is measured.