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An insulated nozzle has saturated water vapor at 1000 kPa enter... | Filo

An insulated nozzle has saturated water vapor at 1000 kPa enter... | Filo

435 kg of water changed to dry saturated steam at 20000 kpa what volume will it occupy 43215

435 kg of water changed to dry saturated steam at 20000 kpa what volume will it occupy 43215

Saturated water vapor at 200 kPa is in a constant pressure piston cylinder. At this state the piston is 0.1 m from the cylinder bottom. How much is this distance if the temperature is changed to a) 200 oC and b) 100 oC.?

Saturated water vapor at 200 kPa is in a constant pressure piston cylinder. At this state the piston is 0.1 m from the cylinder bottom. How much is this distance if the temperature is changed to a) 200 oC and b) 100 oC.?

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503 views2 weeks ago

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Water enters the pump of a steam power plant as saturated liquid at 20 kPa at a rate of 45 kg / s and exits at 6 MPa. Neglecting the changes in kinetic and potential energies and assuming the process to be reversible, determine the power input to the pump. | Numerade

Water enters the pump of a steam power plant as saturated liquid at 20 kPa at a rate of 45 kg / s and exits at 6 MPa. Neglecting the changes in kinetic and potential energies and assuming the process to be reversible, determine the power input to the pump. | Numerade

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Boreholes are Quenching Thirst for West Pokot and Turkana Residents

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Use Table B.1 in the appendix. Saturated liquid water at 100 k... | Filo

Use Table B.1 in the appendix. Saturated liquid water at 100 k... | Filo

5.2K views3 months ago

In a steam condenser, saturated steam enters the shell at 10 kPa and condenses into saturated liquid at the same pressure. Water enters the tubes at 25^∘ C and flows at the rate of 200 kg / s. The mass of steam condensed is 6 kg / s. Determine (a) the outlet temperature of the water, (b) the hot-side heat transfer area if the condenser is in a one shell-two tube pass arrangement with an overall hot-side heat transfer coefficient of UH=2500 W / m^2-K. | Numerade

Can saturated water vapor at 200 kPa be condensed to a saturated liquid in an isobaric, closed system process while only exchanging heat with an isothermal energy reservoir at 90^∘ C ? (Hint: Determine the entropy generation.) | Numerade

SOLVED:Saturated water vapor at 1000 kPa is throttled to 100 kPa. The velocity of the steam remains constant throughout the process. Determine the exit temperature of the water vapor.

One hundred kg of saturated steam at 100 kPa is to be adiabatically compressed in a closed system to 1000 kPa. How much work is required if the isentropic compression efficiency is 90 percent? Answer: 44,160 kJ | Numerade

A closed, rigid tank contains 3 kg of saturated water vapor initially at 140^∘ C. Heat transfer occurs, and the pressure drops to 200 kPa . Kinetic and potential energy effects are negligible. For the water as the system, determine the amount of energy transfer by heat, in kJ . | Numerade

Water initially at 200 kPa and 300^∘ C is contained in a piston-cylinder device fitted with stops. The water is allowed to cool at constant pressure until it exists as a saturated vapor and the piston rests on the stops. Then the water continues to cool until the pressure is 100 kPa. On the T -v diagrams sketch, with respect to the saturation lines, the process curves passing through both the initial, intermediate, and final states of the water. Label the T, P and v values for end states on the

A 2-m^3 rigid insulated tank initially containing saturated water vapor at 1 MPa is connected through a valve to a supply line that carries steam at 400^∘ C. Now the valve is opened, and steam is allowed to flow slowly into the tank until the pressure in the tank rises to 2 MPa. At this instant the tank temperature is measured to be 300^∘ C. Determine the mass of the steam that has entered and the pressure of the steam in the supply line. | Numerade

Consider a steam turbine with inlet 2 MPa, 350^∘ C and an exhaust flow as saturated vapor, 100 kPa. There is a heat loss of 6 kJ / kg to the ambient. Is the turbine possible? | Numerade

SOLVED:Consider a Rankine cycle with saturated steam leaving the boiler at a pressure of 2 MPa and a condenser pressure of 10 kPa. (a) Calculate the thermal efficiency of the ideal Rankine cycle for these operating conditions. (b) If the net reversible work for the cycle is 0.5 MW, calculate the required flow rate of cooling water supplied to the condenser at 15^∘ C with an allowable temperature rise of 10^∘ C. (c) Design a shell-and-tube heat exchanger (one-shell, multiple-tube passes) that wil

A gas-turbine cycle intakes 50 kg / s of air at 100 kPa and 20^∘ C. It compresses it by a factor of 6 and the combustor heats it to 900^∘ C. It then enters the boiler of a simple Rankine cycle power plant that operates on steam between 8 kPa and 4 MPa . The heat exchanger-boiler outlets steam at 400^∘ C and exhaust gases at 300^∘ C. Determine the total power output and the overall cycle efficiency. | Numerade

SOLVED:A basic, ideal Rankine cycle, using water as the working fluid, has a saturated vapor exiting the steam generator at 15 MPa and saturated liquid exiting the condenser at 20 kPa. The mass flow rate of the water through the cycle is 60 kg / s. Determine the net power produced, the heat input to the steam generator, and the thermal efficiency of the cycle.

A well-insulated rigid tank contains 3 kg of a saturated liquid-vapor mixture of water at 200 kPa. Initially, three-quarters of the mass is in the liquid phase. An electric resistance heater placed in the tank is now turned on and kept on until all the liquid in the tank is vaporized. Determine the entropy change of the steam during this process. | Numerade

A steam turbine accepts 2 kg / s of steam at 6 MPa and 600^∘ C and exhausts saturated steam at 20 kPa while producing 2000 kW of work. If the surroundings are at 30^∘ C and the flow is steady, calculate the rate of entropy production. The first law for a control volume allows us to calculate the heat transfer from the turbine to the surroundings: Q̇T=ṁ(h2-h1) ẆT=(2)(2609.7-3658.4) 2000=-97.4 kW Hence, Q̇sutr =-Q̇T= 97.4 kW. The rate of entropy production is then found from (6.47) to be Ṡprod

SOLVED:A steam power plant operates on an ideal regenerative… | Numerade

A power plant operates on a regenerative vapor power cycle with one open feedwater heater. Steam enters the first turbine stage at 12 MPaa, 520^∘ C and expands to 1 MPaa, where some of the steam is extracted and diverted to the open feedwater heater operating at 1 MPa. The remaining steam expands through the second turbine stage to the condenser pressure of 6 kPa. Saturated liquid exits the open feedwater heater at 1 MPa. For isentropic processes in the turbines and pumps, determine for the cycl

A power plant operates on a regenerative vapor power cycle with one open feedwater heater. Steam enters the first turbine stage at 14 MPa, 480^∘ C and expands to 2 MPa, where some of the steam is extracted and diverted to the open feedwater heater operating at 2 MPa. The remaining steam expands through the second turbine stage to the condenser pressure of 8 kPa. Saturated liquid exits the open feedwater heater at 2 MPa. For isentropic processes in the turbines and pumps, determine for the cycle

SOLVED:Consider a steam power plant that operates between the… | Numerade

Steam enters a turbine at 12 MPa, 550^∘ C, and 60 m / s and leaves at 20 kPa and 130 m / s with a moisture content of 5 percent. The turbine is not adequately insulated and it estimated that heat is lost from the turbine at a rate of 150 kW. The power output of the turbine is 2.5 MW. Assuming the surroundings to be at 25^∘ C, determine (a) the reversible power output of the turbine, (b) the exergy destroyed within the turbine, and (c) the second-law efficiency of the turbine. (d) Also, estima

Consider a steam power plant that operates on the ideal regenerative Rankine cycle with a closed feedwater heater as shown in the figure. The plant maintains the turbine inlet at 3000 kPa and 350^∘ C ; and operates the condenser at 20 kPa . Steam is extracted at 1000 kPa to serve the closed feedwater heater, which discharges into the condenser after being throttled to condenser pressure. Calculate the work produced by the turbine, the work consumed by the pump, and the heat supply in the boiler

Water is the working fluid in an ideal regenerative Rankine cycle with one open feedwater heater. Superheated vapor enters the first-stage turbine at 14 MPa, 520^∘ C, and the condenser pressure is 6 kPa. The mass flow rate of steam entering the first-stage turbine is 90 kg / s. Steam expands through the first-stage turbine to 0.9 MPa where some of the steam is extracted and diverted to an open feedwater heater oper ating at 0.9 MPa. The remainder expands through the second-stage turbine to the

SOLVED:Water is the working fluid in an ideal regenerative Rankine cycle with one open feedwater heater. Superheated vapor enters the first-stage turbine at 14 MPa, 520^∘ C, and the condenser pressure is 6 kPa. The mass flow rate of steam entering the first-stage turbine is 90 kg / s. Steam expands through the first-stage turbine to 0.9 MPa, where some of the steam is extracted and diverted to an open feedwater heater operating at 0.9 MPa. The remainder expands through the second-stage turbine

Complete this table for H2 O : T,^∘C P, kPa ∪, m^3 / kg Phase description 140 0.035 550 Saturated liquid 125 750 300 0.140 | Numerade

Example 2.2:Calculating dryness fraction, specific volume and internal energy of saturated steam.

1.5K viewsDec 2, 2023

YouTubeDr. Arshad Ali Khan Official

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