The 5 phases are Compressed liquid,saturatad liquid, saturated Liquid, Saturated Vapor and Superheated Vapor.
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The 5 phases are Compressed liquid,saturatad liquid, saturated
Liquid, Saturated Vapor and Superheated Vapor.
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/5 2- Saturated vapor enters the turbine at 8MP and saturated liquid exits the condenser at...
/5 2- Saturated vapor enters the turbine at 8MP and saturated liquid exits the condenser at a pressure of 0.008 MPa. The isentropic efficiency of the turbine is 85%. Determine: the quality of the steam at state 2 he 173.88 kJ/kgl and htg 2403.1[kJ/kg] at 0.008 MPa a. 8.0 MPa b. heat added to working fluid in the boiler in 4 c. the thermal efficiency of the cycle 0.008 MPa 2s 2 State h [kJ/kg] 2758 1794.8 173.88 181.92 2s
Compressing a substance in the Liquid versus Gas Phases EXAMPLE 7-12 Determine the compressor work input...
Compressing a substance in the Liquid versus Gas Phases EXAMPLE 7-12 Determine the compressor work input required to compress steam isentropi- cally from 100 kPa to 1 MPa, assuming that the steam exists as (a) satu- T rated liquid and (b) saturated vapor at the inlet state. SOLUTION Steam is to be compressed from a given pressure to a specified pressure isentropically. The work input is to be determined for the cases of steam being a saturated liquid and saturated...
Water is the working fluid in a Rankine cycle. Superheated vapor enters the turbine at 8...
Water is the working fluid in a Rankine cycle. Superheated vapor enters the turbine at 8 MPa, 700°C and the turbine exit pressure is 8 kPa. Saturated liquid enters the pump at 8 kPa. The heat transfer rate to the working fluid in the steam generator is 24 MW. The isentropic turbine efficiency is 88%, and the isentropic pump efficiency is 82%. Cooling water enters the condenser at 18°C and exits at 36°C with no significant change in pressure. Determine...
Problem 5- A piston-cylinder device initially contains steam at 3.5 MPa, superheated by .10°C. Now, steam loses hea...
Problem 5- A piston-cylinder device initially contains steam at 3.5 MPa, superheated by .10°C. Now, steam loses heat to the surroundings and the piston moves down, hitting a set of stops, at which point the cylinder contains saturated liquid water. The cooling continues until the cylinder contains water at .200C. Determine the initial temperature of the steam a. b. Sketch the process on a P-v an T-v diagram Determine the initial specific enthalpy, in kJ/kg d. Determine the enthalpy change...
Water is the working fluid in a Rankine cycle. Superheated vapor enters the turbine at 10...
Water is the working fluid in a Rankine cycle. Superheated vapor enters the turbine at 10 Mpa, 560 C with a mass flow rate of 7.8kg/s and exits at 8 kPa. Saturated liquid enters the pump at 8 kPa. The isentropic turbine efficiency is 85%, and the isentropic pump efficiency is 85%. Cooling water enters the adiabatic condenser at 18 C and exits at 36 C with no significant change in pressure and assuming the specific heat of the cooling...
Water is the working fluid in an ideal Rankine cycle with reheat. Superheated vapor enters...
Water is the working fluid in an ideal Rankine cycle with reheat. Superheated vapor enters the turbine at 8 MPa, 480℃, and the condenser pressure is 8 kPa. Steam expands through the first stage turbine to 700 kPa and then is reheated to 480℃. Assumptions: see problem 1 . Determine for the cycle(a) the rate of heat addition, in kJ per kg to the working fluid in the steam generator.(b) the thermal efficiency.(c) the rate of heat transfer from the...
Water is the working fluid in an ideal Rankine cycle with reheat. Superheated vapor enters the...
Water is the working fluid in an ideal Rankine cycle with reheat. Superheated vapor enters the turbine at 12 MPa, 480 °C and the pressure at the exit of the second stage turbine is 8 kPa. Steam expands through the first stage turbine to 1 MPa and then is reheated to 440 °C. Saturated liquid water leaves the condenser. After the pump, pressure goes back to 12 MPa. Find: (1) Sketch the process on a T-s diagram and justify the location...
8.55 ULUS 8.53. but include in the s an isentropic efficiency 8.54 Reconsider the cycle o...
8.55
ULUS 8.53. but include in the s an isentropic efficiency 8.54 Reconsider the cycle o f lem 852 L analysis that each turbine e has an isentre of 88% and each pump an siciency of 80%. unkine cycle of Problem 8.9 to include r heater using extracted steam extracted steam at exiting the heater as saturated liquid ough a trap into the condenser. The neater at 11 MPa and a temperature temperature at 690 kPa. The mass ring the...
Homework 2 Problem 1: A piston-cylinder device initially contains 0.35-kg steam at 3.5 MPa, superheated by...
Homework 2 Problem 1: A piston-cylinder device initially contains 0.35-kg steam at 3.5 MPa, superheated by 7.4 C. Now the stream loses heat to the surroundings and the piston moves down, hitting a set of stops at which point the cylinder contains saturated liquid water. The cooling continues until the cylinder contains water at 200C. Determine (a) the final pressure and the quality (if mixture), (b) the boundary work, (c) the amount of heat transfer when the piston first hits...
A mass of 5 kg of saturated liquid-vapor mixture of water is contained in a piston-...
A mass of 5 kg of saturated liquid-vapor mixture of water is contained in a piston- cylinder device at 125 kPa. Initially. 3 kg of the water is in the liquid phase and the rest is in the vapor phase. Heat is now transferred to the water, and the piston, which is resting on a set of stops, starts moving when the pressure inside reaches 300 kPa. Heat transfer continues until the total volume increases by 10%. We denote the...
/5 2- Saturated vapor enters the turbine at 8MP and saturated liquid exits the condenser at a pressure of 0.008 MPa. The isentropic efficiency of the turbine is 85%. Determine: the quality of the steam at state 2 he 173.88 kJ/kgl and htg 2403.1[kJ/kg] at 0.008 MPa a. 8.0 MPa b. heat added to working fluid in the boiler in 4 c. the thermal efficiency of the cycle 0.008 MPa 2s 2 State h [kJ/kg] 2758 1794.8 173.88 181.92 2s
Compressing a substance in the Liquid versus Gas Phases EXAMPLE 7-12 Determine the compressor work input required to compress steam isentropi- cally from 100 kPa to 1 MPa, assuming that the steam exists as (a) satu- T rated liquid and (b) saturated vapor at the inlet state. SOLUTION Steam is to be compressed from a given pressure to a specified pressure isentropically. The work input is to be determined for the cases of steam being a saturated liquid and saturated...
Problem 5- A piston-cylinder device initially contains steam at 3.5 MPa, superheated by .10°C. Now, steam loses heat to the surroundings and the piston moves down, hitting a set of stops, at which point the cylinder contains saturated liquid water. The cooling continues until the cylinder contains water at .200C. Determine the initial temperature of the steam a. b. Sketch the process on a P-v an T-v diagram Determine the initial specific enthalpy, in kJ/kg d. Determine the enthalpy change...
Water is the working fluid in an ideal Rankine cycle with reheat. Superheated vapor enters the turbine at 12 MPa, 480 °C and the pressure at the exit of the second stage turbine is 8 kPa. Steam expands through the first stage turbine to 1 MPa and then is reheated to 440 °C. Saturated liquid water leaves the condenser. After the pump, pressure goes back to 12 MPa. Find: (1) Sketch the process on a T-s diagram and justify the location...
8.55
ULUS 8.53. but include in the s an isentropic efficiency 8.54 Reconsider the cycle o f lem 852 L analysis that each turbine e has an isentre of 88% and each pump an siciency of 80%. unkine cycle of Problem 8.9 to include r heater using extracted steam extracted steam at exiting the heater as saturated liquid ough a trap into the condenser. The neater at 11 MPa and a temperature temperature at 690 kPa. The mass ring the...
Homework 2 Problem 1: A piston-cylinder device initially contains 0.35-kg steam at 3.5 MPa, superheated by 7.4 C. Now the stream loses heat to the surroundings and the piston moves down, hitting a set of stops at which point the cylinder contains saturated liquid water. The cooling continues until the cylinder contains water at 200C. Determine (a) the final pressure and the quality (if mixture), (b) the boundary work, (c) the amount of heat transfer when the piston first hits...
A mass of 5 kg of saturated liquid-vapor mixture of water is contained in a piston- cylinder device at 125 kPa. Initially. 3 kg of the water is in the liquid phase and the rest is in the vapor phase. Heat is now transferred to the water, and the piston, which is resting on a set of stops, starts moving when the pressure inside reaches 300 kPa. Heat transfer continues until the total volume increases by 10%. We denote the...
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