The driving force for fluid flow is the pressure difference, and a pump operates by raising the pressure of a fluid (by converting the mechanical shaft work to flow energy). A gasoline pump is measured to consume 31 kW of electric power when operating. If the pressure differential between the outlet and inlet of the pump is measured to be 5.9 kPa and the changes in velocity and elevation are negligible, determine the maximum possible volume flow rate of gasoline.

Q: What is the second-law efficiency? How does it differ from the first-law efficiency?

A: Before understanding the first and second law efficiency and the difference we have to understand…

Q: Water is being heated in a closed pan on top of a range while being stirred by a paddle wheel.…

A: Given data: The heat transferred to the water is Q1=30 kJ. The heat lost by the surroundings is…

Q: A Carnot engine produces 58,639 hp of power while operating between temperature limits of 1,229°F…

A:

Q: Can a system have a higher second-law efficiency than the first-law efficiency during a process?…

A: Yes, a system can have a higher second -law efficiency than the first-law efficiency during a…

Q: When is work said to be done by a system. Is there any difference between work transfer and heat…

A: Work done is a way through which energy transfer occurs between the system  Energy is the ability or…

Q: Steam enters a turbine at 70 m/s and leaves at 50 m/s. The specific kinetic energy of steam is in…

A:

Q: The pressure inside a system varies inversely with the square of the volume of the system. Determine…

A: The initial volume of the system is, V1=2 m3 The initial pressure of the system is, P1=200 kPa The…

Q: A 2.5-m3 rigid tank initially contains air whose density is 1.18 kg/m3. The tank is connected to a…

A: Option A is correct.    m = 25.4678 lb

Q: 2. A cyclic machine is used to transfer heat from a higher to a lower- temperature reservoir, as…

A:

Q: 14. A 2.5-m³ rigid tank initially contains air whose density is 1.18 kg/m³. The tank is connected to…

A:

Q: A water pump that consumes 5 kW of electric power when operating is claimed to take in water from a…

A:

Q: A 1000 MW steam power plant, which is cooled by a river, has a thermal efficiency of 50 percent.…

A:

Q: A 90-hp (shaft output) electric car is powered by an electric motor mounted in the engine…

A: Given   Output energy, E2 = 90 hp                 Efficiency = 91%                                 =…

Q: An air compressor handling 300 m^3/min increases the pressure from 1 bar to 2.3 bars and heat is…

A: Given Data  Inlet pressure, P1=100 KPa Outlet pressure, P2=230 KPa The inlet temperature, T1= 17…

Q: In a steady flow system, 50 kJ of work is done per kg of fluid, the values of specific volume…

A: We have, Wsf=50 kJ/kg The given inlet conditions are, V1=0.4 m3/kg, p1=600 kPaC1=15 m/s

Q: Seventy kilojoules of work is done by each kilogram of fluid passing through an apparatus under…

A: GIVEN DATA -

Q: Does a power plant that has a higher thermal efficiency necessarily have a higher second-law…

A:

Q: How does the efficiency of an idealized automobile engine depend on the operating temperature of the…

A: Draw the PV diagram of the heat engine.

Q: Consider a river flowing toward a lake at an average speed of 3 m/s at a rate of 500 m3/s at a…

A: Given: The average speed of the river is v=3 m/s. The rate of the flow of the river is V=500 m3/s.…

Q: wind turbine with a blade span diameter of 142 m installed at a site subjected to steady winds at 7…

A:

Q: Calculate the total kinetic energy, in BTU, of an object with a mass of 10 kg when its velocity is…

A:

Q: A 2-kW pump is used to pump kerosene (ρ = 0.820 kg/L) from a tank on the ground to a tank at a…

A: We know that,  P=ρgQH                                     (where P=Head Power ,H=head difference and…

Q: The elevator of a large building is to raise a net mass of 550 kg at a constant speed of 12 m/s…

A:

Q: Why do we use enthalpy in place of Internal Energy In the energy Balance for open systems?

A: Given data: Enthalpy is used in place of internal energy because its gives more precise value of…

Q: Steam flows into a turbine at the rate of 10 kg/s and 10 KW of heat are lost from the turbine.…

A: Given:mass flow rate of steam, m=10 Kg/sHeat lost, Ql=10 KWh1=2739 KJ/Kgh2=2300.5 KJ/Kg

Q: A wind turbine has a blade length of 30 m. In a given day, average speed of wind for 5 hours is 9…

A: Wind Turbine is a device that converts mechanical energy into electrical energy. The kinetic energy…

Q: What are the energy types in a closed and open system?

A: Given:  Closed and open system  Energy types in closed and open system.

Q: In a system undergoing adiabatic expansion, what are the values of internal energy and heat if work…

A: Given data:

Q: In what forms can energy cross the boundaries of a closed system?

A: Close system: It is a thermodynamics system in which mass cannot cross the boundary of the system…

Q: Air flows through a pipe at a rate of 125 L/s. The pipe consists of two sections of diameters 22 cm…

A: Draw a diagram for the problem. Here, 1 and 2 are the sections as shown in the problem.

Q: In a steady flow apparatus, a fluid enters with a specific volume of 0.40m³/kg, a pressure of 550…

A:

Q: Consider a river flowing toward a lake at an average velocity of 22.5 km/hr at a rate of 387 m3/s at…

A:

Q: Show that the difference between the reversible steady-flow work and reversible moving boundary work…

A: Flow energy is energy contained in Flowing liquid. It's different from internal energy. It's value…

Q: An oil-transfer pump uses 1 kW of power in transferring 5 kg/s of oil through a 3-cm-diameter pipe.…

A:

Q: An oil pump is drawing 44 kW of electric power while pumping oil with ρ = 860 kg/m3 at a rate of 0.1…

A: First, we calculate the mechanical power output…

Q: Water is being heated in a closed pan on top of a range while being stirred by a paddle wheel.…

A:

Q: How much work is done on a gas, if a certain fluid in a closed system initially having a volume and…

A:

Q: m as it expand slowly in

A: Given that,P1=2.84 MPa=2.84×103 kPaV1=0.08 m3V2=0.22m3

Q: Determine the work required (in kJ/kg) for a pump that is used to increase the pressure of a liquid…

A: Given: P1 = 100 kPa   P2 = 1500 kPa ,    v = 0.001031 m3/kg Work required for pump to increase the…

Q: A hydraulic turbine is used to generate power by using water in a dam. The elevation difference…

A:

Q: A water pump is used for intake in an irrigation system. The pump draws water from a river at 20 C°…

A:

Q: A wind turbine has a blade length of 20 m. In a given day, average speed of wind for 4 hours is 7…

A:

Q: Consider a river flowing toward a lake at an average velocity of 3 m/s at a rate of 500 m3 /s at a…

A: At the location of 90 m, the river is flowing with an average velocity of 3 m/s. So, the total…

Q: For a system having a mass of 1 lb whose velocity increases from 50 ft/s to 100 ft/s while its…

A: Given Mass = 1 lb Distance = 50 ft to 100 ft Elevation 40 ft Acceleration due to gravity = 32 ft/s…

Q: An adiabatic pump is used to increase the pressure of water from 100 kPa to 500 kPa at a rate of 400…

A: given:initial pressure p1=100kpafinal pressure p2=500kparate of flow= 400l/minefficiency η=75%

Q: On a hot summer day, the air in a well-sealed room is circulated by a 0.50-hp fan driven by a 65…

A: This question is based on the concept of thermodynamics.

Q: Air flows through a pipe at a rate of 120 L/s. The pipe consists of two sections of diameters 22 cm…

A: