Fundamentals Of Engineering Thermodynamics
9th Edition
ISBN: 9781119391388
Author: MORAN, Michael J., SHAPIRO, Howard N., Boettner, Daisie D., Bailey, Margaret B.
Publisher: Wiley,
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Chapter 4, Problem 4.48P
To determine
The pressure changes in kPa of the blood flows through the pump.
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Seventy kilojoules of work is done by each kilogram of fluid passing through an apparatus under steady-flow conditions. In the inlet pipe, which is located 30m above the floor, the specific volume is 3m^3/kg, the pressure is 300 kPa and the velocity is 50 m/s. In the discharge pipe, which is 15 m below the floor, the specific volume is 9 m^3/kg, the pressure is 60 kPa, and the velocity is 150 m/s. Heat loss from the fluid is 3 kJ/kg. Determine the change in internal energy of the fluid passing through the apparatus.
A steady state, steady flow compressor draws in 240 liters per second of air whose density is 1.26
kgm/m3 and discharges it with a density of 4.9 kgm/m3 . At suction P1= 104 kPaa; at discharge, P2 = 551
kPaa. The increase of specific internal energy is 78.5 kJ/kgm and the heat from the air by cooling is 30
kJ/kgm. Neglecting the change in potential and kinetic energies, determine the work in kJ/min
Q4: A centrifugal fan for
ventilation plant has inlet and
outlet area of 0.14 m2 and 0.15
m2 respectively.
The static pressure of the fan
inlet is -120 Pa and the static
pressure of the fan outlet is 200
Pa. The fan
consume about 1 kw when
deliver 2 m3/s. Determine;
a- The total pressure of the fan
inlet and outlet.
b- Fan total pressure and fan
static pressure.
c- Total and static fan efficiency.
Chapter 4 Solutions
Fundamentals Of Engineering Thermodynamics
Ch. 4 - Prob. 4.1ECh. 4 - Prob. 4.2ECh. 4 - Prob. 4.3ECh. 4 - Prob. 4.4ECh. 4 - Prob. 4.5ECh. 4 - Prob. 4.6ECh. 4 - Prob. 4.7ECh. 4 - Prob. 4.8ECh. 4 - Prob. 4.9ECh. 4 - Prob. 4.10E
Ch. 4 - Prob. 4.11ECh. 4 - Prob. 4.12ECh. 4 - Prob. 4.13ECh. 4 - Prob. 4.14ECh. 4 - Prob. 4.15ECh. 4 - Prob. 4.1CUCh. 4 - Prob. 4.2CUCh. 4 - Prob. 4.3CUCh. 4 - Prob. 4.4CUCh. 4 - Prob. 4.5CUCh. 4 - Prob. 4.6CUCh. 4 - Prob. 4.7CUCh. 4 - Prob. 4.8CUCh. 4 - Prob. 4.9CUCh. 4 - Prob. 4.10CUCh. 4 - Prob. 4.11CUCh. 4 - Prob. 4.12CUCh. 4 - Prob. 4.13CUCh. 4 - Prob. 4.14CUCh. 4 - Prob. 4.15CUCh. 4 - Prob. 4.16CUCh. 4 - Prob. 4.17CUCh. 4 - Prob. 4.18CUCh. 4 - Prob. 4.19CUCh. 4 - Prob. 4.20CUCh. 4 - Prob. 4.21CUCh. 4 - Prob. 4.22CUCh. 4 - Prob. 4.23CUCh. 4 - Prob. 4.24CUCh. 4 - Prob. 4.25CUCh. 4 - Prob. 4.26CUCh. 4 - Prob. 4.27CUCh. 4 - Prob. 4.28CUCh. 4 - Prob. 4.29CUCh. 4 - Prob. 4.30CUCh. 4 - Prob. 4.31CUCh. 4 - Prob. 4.32CUCh. 4 - Prob. 4.33CUCh. 4 - Prob. 4.34CUCh. 4 - Prob. 4.35CUCh. 4 - Prob. 4.36CUCh. 4 - Prob. 4.37CUCh. 4 - Prob. 4.38CUCh. 4 - Prob. 4.39CUCh. 4 - Prob. 4.40CUCh. 4 - Prob. 4.41CUCh. 4 - Prob. 4.42CUCh. 4 - Prob. 4.43CUCh. 4 - Prob. 4.44CUCh. 4 - Prob. 4.45CUCh. 4 - Prob. 4.46CUCh. 4 - Prob. 4.47CUCh. 4 - Prob. 4.48CUCh. 4 - Prob. 4.49CUCh. 4 - Prob. 4.50CUCh. 4 - Prob. 4.51CUCh. 4 - Prob. 4.1PCh. 4 - Prob. 4.2PCh. 4 - Prob. 4.3PCh. 4 - Prob. 4.4PCh. 4 - Prob. 4.5PCh. 4 - Prob. 4.6PCh. 4 - Prob. 4.7PCh. 4 - Prob. 4.8PCh. 4 - Prob. 4.9PCh. 4 - Prob. 4.10PCh. 4 - Prob. 4.11PCh. 4 - Prob. 4.12PCh. 4 - Prob. 4.13PCh. 4 - Prob. 4.14PCh. 4 - Prob. 4.15PCh. 4 - Prob. 4.16PCh. 4 - Prob. 4.17PCh. 4 - Prob. 4.18PCh. 4 - Prob. 4.19PCh. 4 - Prob. 4.20PCh. 4 - Prob. 4.21PCh. 4 - Prob. 4.22PCh. 4 - Prob. 4.23PCh. 4 - Prob. 4.24PCh. 4 - Prob. 4.25PCh. 4 - Prob. 4.26PCh. 4 - Prob. 4.27PCh. 4 - Prob. 4.28PCh. 4 - Prob. 4.29PCh. 4 - Prob. 4.30PCh. 4 - Prob. 4.31PCh. 4 - Prob. 4.32PCh. 4 - Prob. 4.33PCh. 4 - Prob. 4.34PCh. 4 - Prob. 4.35PCh. 4 - Prob. 4.36PCh. 4 - Prob. 4.37PCh. 4 - Prob. 4.38PCh. 4 - Prob. 4.39PCh. 4 - Prob. 4.40PCh. 4 - Prob. 4.41PCh. 4 - Prob. 4.42PCh. 4 - Prob. 4.43PCh. 4 - Prob. 4.44PCh. 4 - Prob. 4.45PCh. 4 - Prob. 4.46PCh. 4 - Prob. 4.47PCh. 4 - Prob. 4.48PCh. 4 - Prob. 4.49PCh. 4 - Prob. 4.50PCh. 4 - Prob. 4.51PCh. 4 - Prob. 4.52PCh. 4 - Prob. 4.53PCh. 4 - Prob. 4.54PCh. 4 - Prob. 4.55PCh. 4 - Prob. 4.56PCh. 4 - Prob. 4.57PCh. 4 - Prob. 4.58PCh. 4 - Prob. 4.59PCh. 4 - Prob. 4.60PCh. 4 - Prob. 4.61PCh. 4 - Prob. 4.62PCh. 4 - Prob. 4.63PCh. 4 - Prob. 4.64PCh. 4 - Prob. 4.65PCh. 4 - Prob. 4.66PCh. 4 - Prob. 4.67PCh. 4 - Prob. 4.68PCh. 4 - Prob. 4.69PCh. 4 - Prob. 4.70PCh. 4 - Prob. 4.71PCh. 4 - Prob. 4.72PCh. 4 - Prob. 4.73PCh. 4 - Prob. 4.74PCh. 4 - Prob. 4.75PCh. 4 - Prob. 4.76PCh. 4 - Prob. 4.77PCh. 4 - Prob. 4.78PCh. 4 - Prob. 4.79PCh. 4 - Prob. 4.80PCh. 4 - Prob. 4.81PCh. 4 - Prob. 4.82PCh. 4 - Prob. 4.83PCh. 4 - Prob. 4.84PCh. 4 - Prob. 4.85PCh. 4 - Prob. 4.86PCh. 4 - Prob. 4.87PCh. 4 - Prob. 4.88P
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- 3. 12 kg of air per minute is delivered by a centrifugal air compressor. The inlet and outlet conditions of air are: V1 = 12 , P1 = 100 KPa , V1 = 0.5 - m3 and kg V2 = 904, P2 = 800 KPa , v2 = 0.14 m3 The increase in enthalpy of air passing kg KJ and heat loss to the surroundings is 700 kg KJ min through the compressor is 150 Find the work in KW.arrow_forwardAn insulated vertical cylinder-plunger device contains 0.8 m ^ 3of refrigerant 134a at 1.2 MPa and 120 ° C. With a linear (compression) spring, all of its force is applied to the plunger at that moment. A valve connected to the cylinder opens and refrigerant escapes. The spring is released as the plunger is lowered, and the pressure and volume drop to 0.6 MPa and 0.5 m ^ 3, at the end of the process.Determine:a) the amount of refrigerant that escaped andb) the final temperature of the coolantarrow_forwardTwo kilograms of water are contained within a piston and cylinder assembly, with a massless piston, acted upon by a linear spring and the outer atmosphere. Initially the spring force is zero and P1 = P0 = 100 kPa with a volume of 0.2 m ^ 3. If the piston just rubs the upper supports, the volume is 0.8 m ^ 3 and T = 600 ° C. Now some heat is added until the pressure reaches 1.2 MPa. Find the final temperature, plot the processes on the P-V diagram, and find the work that is done during the process.arrow_forward
- A fluid enters a steady-flow system at a rate of 2.5 kg/s with an initial pressure of 0.70 MPa, density of 3.2 kg/m3, velocity of 30 m/s and internal energy of 1860 kJ/kg and leaves with a pressure of 0.14 MPa, density of 0.8 kg/m3, velocity of 150 m/s and internal energy of 1810 kJ/kg. During passage through the open system, each kg rejects 25 kJ of heat. Find the shaft work involve in horsepower.1 hp = 746 WAns. 194.2 hparrow_forwardA system consists of saturated liquid water being pumped through a boiler. The diagramdescribes the system. The pressure across the boiler is constant. For the boiler, the heat istransferred to the water.a. Determine the boiler pressure.b. Determine the state at the exit of the boiler.arrow_forwardWater at 20°C is flowing at steady-state through a piping system as shown. D2 The velocity distribution (in m/s ) in a pipe with D1 = 4 cm is given by 1/7 Vz = 3 R where R1 = D1/2 and r is the radial coordinate. If the volumetric flow rate of water through a pipe with D3 = 1 cm is 0.072 m³/min, calculate the volumetric flow rate of water (in cm³/s ) through a pipe with D2 = 2 cmarrow_forward
- A steady state flow compressor draws in 14170 li/min of air whose density is 1.267 kg/m3 and discharge it with density of 4.88 kg/m3. At the suction, P1-103.42 kPa, at the discharge, p2=551.584 kPa. Thge increase in specific internal energy is 78.45 kJ/kg and the heat from air by cooling is 30.173 kJ/kg. Neglecting the change of potential and kinetic energy, determine the work done on the system in kJ/min.arrow_forwardParvinbhaiarrow_forwardA pump is used to circulate hot water in a home heating system. Water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. The inlet pressure and temperature are 14.7 Ibf/in.?, and 180°F, respectively; at the exit the pressure is 120 Ibf/in.? The pump requires 1/ 15 hp of power input. Water can be modeled as an incompressible substance with constant density of 60.58 lb/ft³ and constant specific heat of 1 Btu/lb · °R. Neglecting kinetic and potential energy effects, determine the temperature change, in °R, as the water flows through the pump.arrow_forward
- A mixing vessel initially contains 3,766.6 lb of liquid fluid. The vessel is fitted with two inlet pipes, one delivering hot fluid at a mass flow rate of 0.916 lb/sec and the other delivering cold fluid at a mass flow rate of 0.6 lb/sec. Fluid exits through a single pipe at a mass flow rate of 1.373 lb/sec. Calculate the amount of fluid, in lb, in the tank after 41 minutes.arrow_forwardT-12arrow_forwardIn a steady flow apparatus, a fluid enters with a specific volume of 0.30 m3/kg, a pressure of 540 kPaand 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 theinlet and outlet ports. Determine the amount of change in internal energy in the apparatus in kJ/kg.Is the internal energy increases or decreases?arrow_forward
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