During cardiac surgery, a heart-lung machine achieves extracorporeal circulation of the patient's blood using a pump operating at steady state. Blood enters the well-insulated pump at a rate of 5 liters/min. The temperature change of the blood is negligible as it flows through the pump. The pump requires 20 W of power input. Modeling the blood as an incompressible substance with negligible kinetic and potential energy effects, determine the pressure change, in kPa, of the blood as it flows through the pump. a. Determine the pressure change in kPa.

During cardiac surgery, a heart-lung machine achieves extracorporeal circulation of the patient's blood using a pump operating at steady state. Blood enters the well-insulated pump at a rate of 5 liters/min. The temperature change of the blood is negligible as it flows through the pump. The pump requires 20 W of power input. Modeling the blood as an incompressible substance with negligible kinetic and potential energy effects, determine the pressure change, in kPa, of the blood as it flows through the pump. a. Determine the pressure change in kPa.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

5. A fluid system undergoes a non-flow frictionless process from 4.5 ft3 to a final volume 1.5 ft3 in accordance with the defining relation P= 60/V + 30 psi, where volume in ftº. During the process the system reject 30 BTU of heat. Determine the change in enthalpy and internal energy.
The diameter of an air compressor cylinder is 140 mm, the stroke of the piston is 180 mm, and the clearance volume is 77 cm². The pressure and temperature of the air in the cylinder at the end of the suction stroke and beginning of compression is 0.97 bar and 13°C. The delivery pressure is constant at 4.2 bar. Taking the law of compression as PV1.3 = C, calculate the volume of air delivered per stroke in liters. (16) 0.7485 O 0.6485 O 0.8457 O 0.5847 O 0.4857
T-12
Twenty pounds per second of steady-flow steam enters a nozzle at P1 = 200 psia and 1059.67°R, and a velocity of 10ft/s. At steady state, the exit conditions are P2 = 100 psia and velocity = 600 ft/s. Find the exit temperature of the nozzle, in °F. Assume that the heat transfer and change in P.E. are negligible.
In an air conditioning system running at steady-state, m ̇ = 0.7 kg/s of refrigerant 3 134a in saturated liquid state at 48◦C flow through a throttling valve reducing its pressure to a value of p4 = 4 bars. The system is shown in Fig. 1. Then the refrigerant flows through the internal side of a heat exchanger exiting at saturated vapor with p5 = p4. Air enters the external side of the heat exchanger at T1 = 300 K and exits at T2 = 295 K moved by a fan ̇ Figure 1: Problem 1 that consumes WCV = 0.15 kW. Determine the mass flow rate of the air, in kg/s
Which of the following is incorrect about the overall energy balance and mechanical energy balance in fluid flow phenomena?A. The former only accounts the first law of thermodynamics while the latter includes the second.B. The former only accounts the work brought by changes in the volume while the latter includes the Δ(PV) work.C. The enthalpy of the system for both balance is the sum of the changes in the internal energy and the reversible work at constant pressure.D. The former is not often used to evaluate a system with changing pressure unlike the latter.
8. In a steady flow apparatus 135 KJ of work is done by each kg of fluid. The specific volume of the fluid, pressure, and speed at the inlet are 0.30 m³/kg, 600 kPa, and 16m/s. The inlet is 32m above the floor and the discharge pipe are at floor level. The discharge conditions are 0.60 m³/kg, 1 bar, and 270 m/s. The total heat loss between the inlet and discharge is 9KJ/kg of fluid. In flowing through this apparatus, does the specific internal energy increase or decrease? And by how much?
3. A fluid system undergoes a non-flow frictionless process from 5.5 ft to a final volume 2.5 ft in accordance with the defining relation P= 60/V + 23 psi, where volume is in ft. During the process the system reject 30 BTU of heat. Determine the change in enthalpy and internal energy.
The kinetic energy of air as it flows through an adiabatic nozzle. decreases increases remains constant
A mixing vessel initially contains 4,485.43 lb of liquid fluid. The vessel is fitted with two inlet pipes, one delivering hot fluid at a mass flow rate of 0.635 lb/sec and the other delivering cold fluid at a mass flow rate of 0.836 lb/sec. Fluid exits through a single pipe at a mass flowrate of 1.144 lb/sec. Calculate the amount of fluid, in lb, in the tank after 44 minutes.
A rigid tank of volume 10 m³ initially contains saturated water vapor at a temperature of 120 °C. Steam at a pressure 1.2 MPa and a temperature of 400 °C enters the tank through a valve in steam line that is connected to the tank until the final pressure in the tank is 800 kPa, at which time the temperature is 200 °C. All kinetic and potential energy effects can be neglected. A schematic of the problem and properties at all state points except state 1 are shown in the figure below. All of the properties at state 2 and the inlet state i are provided on the figure. Initial State in Tank T₁-120 °C, Sat. vapor u₁=? kJ/kg V₁=? m³/kg Pi=1.2 MPa, Ti-400 °C hi-3261.3 kJ/kg V=10 m³ Final State in Tank T: 200 °C, P₂-800 kPa u₂= 2631.1 kJ/kg v₂=0.26088 m³/kg Qout For Question 6: The initial specific internal energy, u1, of the saturated vapor in the tank in kJ/kg is
In a steady flow apparatus, a fluid enters with a specific volume of 0.30 m3/kg, a pressure of 540 kPa and a velocity of 25 m/s. The inlet port is 40m above the floor and the outlet port is at the floor level. The fluid exits with a specific volume of 0.82kg/m3, a pressure of 100 kPa and a velocity of 280 m/s. The apparatus produces 140kJ of work per kg of fluid and a 12 kJ/kg of heat loss occurs between the inlet and outlet ports. Determine the amount of change in internal energy in the apparatus in kJ/kg. Is the internal energy increases or decreases?