When nitrogen is pumped to a reactor, its flow velocity triples, and its temperature increases by...
When nitrogen is pumped to a reactor, its flow velocity triples, and its temperature increases by 110 K. The outlet flange of the pump is located 12 m lower than the inlet flange. The magnitude of the heat loss in the pump is (0.7x92) % of the pump power input. The inlet state and the outlet state are specified as follows: • Inlet: Tin = 110 K, (quality) x = 23, Vin = 20 m/s, (flange diameter) din = 50 mm, • Outlet: Pout = 3 MPa. Determine: (a) the mass flow rate of nitrogen, (b) the input power of the pump in kW, (c) the outlet flange diameter.
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When nitrogen is pumped to a reactor, its flow velocity triples, and its temperature increases by...
not sure how the mass flow rate is 8.47 kg/s Water is pumped from an open...
not sure how the mass flow rate is 8.47 kg/s
Water is pumped from an open reservoir to a large closed tank at a fixed pressure of 2 bar, through a vertical distance of 50 meters using a 5 kW pump. Determine the maximum flow rate of the water (in kg/s). State any assumptions you make. For this flow rate, determine the speed of the water inside a 10 cm diameter pipe. Determine also the pressure difference between the inlet...
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The ECCS pump in a reactor draws water from the suppression pool, at atmospheric pressure and...
The ECCS pump in a reactor draws water from the suppression pool, at atmospheric pressure and pumps water through the low-pressure injection system into the reactor pressure vessel 15 m above the suppression pool at a pressure of 4 MPa. The pipe is 8 inches in diameter. The entrance can be considered reentrant. The total length of stainless steel pipe is 45 m, and there are 6 elbows with r/D of 4. A check valve with a loss coefficient K...
8-C) As shown below water is pumped and sprayed through a nozzle into the atmosphere at 20 m/s at...
8-C) As shown below water is pumped and sprayed through a nozzle into the atmosphere at 20 m/s at an elevation 10 m above the reservoir surface. The mass flow rate is 40 kg/s and the volumetric flow rate is 0.040 m3/s. The large diameter inlet pipe total length is 50 m. The pump effidency is 65%. The longer smaller diameter pipe leaving the pump is 200 m in total length. The pipes have different diameters as indicated below. The...
Problem 2.1 The feed to an ammonia synthesis reactor contains 25 mole% nitrogen and the balance...
Problem 2.1 The feed to an ammonia synthesis reactor contains 25 mole% nitrogen and the balance hydrogen. The flow rate of the stream is 3000 kg/hr. Calculate the rate of flow of nitrogen into the reactor in kg/hr. (MW N2-28 g/mol and MW H2-2 g/mol) Problem 2.2 A 40-wt% aqueous sulfuric acid solution is prepared by mixing pure sulfuric acid (100-wt%; density, ρ = 1.84 g/mL; molar mass, Mw-98 g/mol) with pure water (ρ = 1 g/mL, MW = 18...
Steam with the mass flow rate of 0.75 kg/s enters an adiabatic turbine steadily at 19 MPa, 600°C and 150 m/s
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6. Determine the setting of a centrifugal pump, given that flow rate = 2.4 m/min; diameter...
6. Determine the setting of a centrifugal pump, given that flow rate = 2.4 m/min; diameter of intake pipe = 160 mm; entrance losses = one velocity head in suction pipe; required NPSH = 42 kPa; water temperature = 30°C N D1, D2 : inlet and outlet diameters of impeller (rotor) b : impeller width 0,6 : inlet and outlet impeller vane angles (degrees) : speed of rotation of impeller (and its driver) in rpm V, V :tangential and radial...
The following diagram illustrates a simple steam power plant. A 10kg/s flow of liquid water at...
The following diagram illustrates a simple steam power plant. A
10kg/s flow of liquid water at T1=25°C enters the pump at a
pressure of P1=100kPa and is then pumped to a pressure of P2=2MPa.
The boiler then heats the water at constant pressure to produce
superheated vapour at T3=450°C. The steam is then expanded in the
turbine to a final pressure of P4=100kPa. The turbine and pump are
well insulated and may be considered reversible.
a) Find the turbine exit...
fluid Q1: A venture meter is fitted in a pipe of 30 cm diameter inclined at...
fluid
Q1: A venture meter is fitted in a pipe of 30 cm diameter inclined at 40° to the horizontal to measure the flow rate of petrol having a specific gravity of 0.8. The ratio of areas of main pipe and throat is 5 and the throat is at 1 m from the inlet along its length. The difference in manometer head is 40 mm of mercury. Assuming the coefficient of discharge as 0.96. Calculate the discharge through the venture...
The following diagram illustrates a simple steam power plant. A 10kg/s flow of liquid water at...
The following diagram illustrates a simple steam power plant. A
10kg/s flow of liquid water at T1=25°C enters the pump at a
pressure of P1=100kPa and is then pumped to a pressure of P2=2MPa.
The boiler then heats the water at constant pressure to produce
superheated vapour at T3=450°C. The steam is then expanded in the
turbine to a final pressure of P4=100kPa. The turbine and pump are
well insulated and may be considered reversible.
a) Find the turbine exit...
not sure how the mass flow rate is 8.47 kg/s
Water is pumped from an open reservoir to a large closed tank at a fixed pressure of 2 bar, through a vertical distance of 50 meters using a 5 kW pump. Determine the maximum flow rate of the water (in kg/s). State any assumptions you make. For this flow rate, determine the speed of the water inside a 10 cm diameter pipe. Determine also the pressure difference between the inlet...
8-C) As shown below water is pumped and sprayed through a nozzle into the atmosphere at 20 m/s at an elevation 10 m above the reservoir surface. The mass flow rate is 40 kg/s and the volumetric flow rate is 0.040 m3/s. The large diameter inlet pipe total length is 50 m. The pump effidency is 65%. The longer smaller diameter pipe leaving the pump is 200 m in total length. The pipes have different diameters as indicated below. The...
Problem 2.1 The feed to an ammonia synthesis reactor contains 25 mole% nitrogen and the balance hydrogen. The flow rate of the stream is 3000 kg/hr. Calculate the rate of flow of nitrogen into the reactor in kg/hr. (MW N2-28 g/mol and MW H2-2 g/mol) Problem 2.2 A 40-wt% aqueous sulfuric acid solution is prepared by mixing pure sulfuric acid (100-wt%; density, ρ = 1.84 g/mL; molar mass, Mw-98 g/mol) with pure water (ρ = 1 g/mL, MW = 18...
6. Determine the setting of a centrifugal pump, given that flow rate = 2.4 m/min; diameter of intake pipe = 160 mm; entrance losses = one velocity head in suction pipe; required NPSH = 42 kPa; water temperature = 30°C N D1, D2 : inlet and outlet diameters of impeller (rotor) b : impeller width 0,6 : inlet and outlet impeller vane angles (degrees) : speed of rotation of impeller (and its driver) in rpm V, V :tangential and radial...
The following diagram illustrates a simple steam power plant. A
10kg/s flow of liquid water at T1=25°C enters the pump at a
pressure of P1=100kPa and is then pumped to a pressure of P2=2MPa.
The boiler then heats the water at constant pressure to produce
superheated vapour at T3=450°C. The steam is then expanded in the
turbine to a final pressure of P4=100kPa. The turbine and pump are
well insulated and may be considered reversible.
a) Find the turbine exit...
fluid
Q1: A venture meter is fitted in a pipe of 30 cm diameter inclined at 40° to the horizontal to measure the flow rate of petrol having a specific gravity of 0.8. The ratio of areas of main pipe and throat is 5 and the throat is at 1 m from the inlet along its length. The difference in manometer head is 40 mm of mercury. Assuming the coefficient of discharge as 0.96. Calculate the discharge through the venture...
The following diagram illustrates a simple steam power plant. A
10kg/s flow of liquid water at T1=25°C enters the pump at a
pressure of P1=100kPa and is then pumped to a pressure of P2=2MPa.
The boiler then heats the water at constant pressure to produce
superheated vapour at T3=450°C. The steam is then expanded in the
turbine to a final pressure of P4=100kPa. The turbine and pump are
well insulated and may be considered reversible.
a) Find the turbine exit...
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