Water is the working substance for an ideal Rankine cycle. The condenser pressure is equal to...
Water is the working substance for an ideal Rankine cycle. The condenser pressure is equal to
7.5 kPa. The boiler pressure is 8 MPa.
Find:
a) The specific work required by the pump
b) The specific heat addition for the boiler
c) The specific heat rejection for the condenser
d) The specific work out of the turbine
e) The thermal efficiency of the cycle
2. Solve problem 1, but this time assuming that the temperature at the inlet of the turbine is
500C and the isentropic efficiency of the turbine is 85%
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Water is the working substance for an ideal Rankine cycle. The
condenser pressure is equal to...
Tutorial Questions 1 1. Water is the working fluid in an ideal Rankine cycle. The condenser...
Tutorial Questions 1.1. Water is the working fluid in an ideal Rankine cycle. The condenser pressure is kPa, and saturated vapor enters the turbine at 10 MPa. Determine the heat transfer rates, in kJ per kg of steam flowing, for the working fluid passing through the boiler and condenser and calculate the thermal efficiency.2. Water is the working fluid in an ideal Rankine cycle. Saturated vapor enters the turbine at 16 MPa, and the condenser pressure is 8 kPa ....
(15 pts.) In an ideal Rankine cycle that uses water as the working fluid. Superheated steam...
(15 pts.) In an ideal Rankine cycle that uses water as the working fluid. Superheated steam exits the boiler at 4 MPa and 600°C with a mass flow rate of 8 kg/s. The steam leaves the turbine at a pressure of 100 kPa. (a) Sketch the cycle on a T-s diagram (6) Determine the power output of the turbine (c) Determine the rate of heat loss from the condenser (d) The required pump power (e) The rate of heat addition...
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...
A Rankine cycle with reheat and 2 non-ideal turbines has the following relevant states. - Water...
A Rankine cycle with reheat and 2 non-ideal turbines has the following relevant states. - Water leaves the condenser as a saturated liquid with a pressure of 80.0 kPa As it passes through the ideal pump, it is raised to a pressure of 7 MPa The high pressure turbine has an isentropic efficiency of 91.0% The low pressure turbine has an isentropic efficiency of 91.0%. - The boiler raises adds heat isobarically until the substance has a temperature of 350...
A simple ideal Rankine cycle with water as the working fluid operates between the pressure limits...
A simple ideal Rankine cycle with water as the working fluid operates between the pressure limits of 15 MPa in the boiler and 100 kPa in the condenser. Saturated steam enters the turbine. Determine the work produced by the turbine, the heat transferred in the boiler, and thermal efficiency of the cycle. As part of your solution, sketch a simplified diagram of the cycle, labelling each component, indicating where heat and work flows into or out of the system, and...
A simple Rankine cycle uses water as the working fluid. The boiler operates at 6000 kPa...
A simple Rankine cycle uses water as the working fluid. The boiler operates at 6000 kPa and the condenser at 40 kPa. At the entrance to the turbine, the temperature is 380 °C. The isentropic efficiency of the turbine is 88 %, pressure and pump losses are negligible, and the water leaving the condenser is subcooled by 5.9 °C. The boiler is sized for a mass flow rate of 17 kg/s. Determine the following values. °C m®/kg 1 kJ/kg (1)...
Problem 2. (11 points) The ideal simple Rankine operates at a pressure of 100 kPa in...
Problem 2. (11 points) The ideal simple Rankine operates at a pressure of 100 kPa in the condenser and at a pressure of 4.5 MPa in the evaporator. The liquid leaving the condenser is a saturated mixture with quality x-0.8. The mass flow rate of steam in the cycle is 1.5 kg/s. Plot the cycle on power-generation cycle using steam (a) T-s diagram for steam; and determine (b) What is the maximum temperature (°C) of this Rankine cycle (c) the...
Consider a steam power plant operating on the simple ideal Rankine cycle. Steam enters the turbine at 5 MPa and 500°C and is condensed in the condenser at a pressure of 50 kPa. Heat is supplied to th...
Consider a steam power plant operating on the simple ideal Rankine cycle. Steam enters the turbine at 5 MPa and 500°C and is condensed in the condenser at a pressure of 50 kPa. Heat is supplied to the steam in a furnace maintained at 800 K, and waste heat is rejected to the surroundings at 300 K. Show the cycle on a T-s diagram with respect to saturation lines, and determine (a) the net work output, (b) the thermal efficiency...
An ideal reheat Rankine cycle with water as the working fluid operates the inlet of the...
An ideal reheat Rankine cycle with water as the working fluid operates the inlet of the high-pressure turbine at 8000 kPa and 450°C, the inlet of the low-pressure turbine at 300kPa and 500°C, and the condenser at 10 kPa. Determine the mass flow rate through the boiler needed for this system to produce a net 5000 kW of power and the thermal efficiency of the cycle.
(30 points) Rankine Cycle An ideal Rankine cycle has a turbine power output of 4 MW....
(30 points) Rankine Cycle An ideal Rankine cycle has a turbine power output of 4 MW. Saturated liquid at 20 kPa leaves the condenser, and the vapor at the exit to the isentropic turbine has a quality of 95 percent. The boiler pressure is 1.4 MPa. a. Find the mass flow rate of the steam (kg/s) b. What is the heat transfer into the boiler? c. What is the thermal efficiency for this cycle? Condenser
(15 pts.) In an ideal Rankine cycle that uses water as the working fluid. Superheated steam exits the boiler at 4 MPa and 600°C with a mass flow rate of 8 kg/s. The steam leaves the turbine at a pressure of 100 kPa. (a) Sketch the cycle on a T-s diagram (6) Determine the power output of the turbine (c) Determine the rate of heat loss from the condenser (d) The required pump power (e) The rate of heat addition...
A Rankine cycle with reheat and 2 non-ideal turbines has the following relevant states. - Water leaves the condenser as a saturated liquid with a pressure of 80.0 kPa As it passes through the ideal pump, it is raised to a pressure of 7 MPa The high pressure turbine has an isentropic efficiency of 91.0% The low pressure turbine has an isentropic efficiency of 91.0%. - The boiler raises adds heat isobarically until the substance has a temperature of 350...
A simple ideal Rankine cycle with water as the working fluid operates between the pressure limits of 15 MPa in the boiler and 100 kPa in the condenser. Saturated steam enters the turbine. Determine the work produced by the turbine, the heat transferred in the boiler, and thermal efficiency of the cycle. As part of your solution, sketch a simplified diagram of the cycle, labelling each component, indicating where heat and work flows into or out of the system, and...
A simple Rankine cycle uses water as the working fluid. The boiler operates at 6000 kPa and the condenser at 40 kPa. At the entrance to the turbine, the temperature is 380 °C. The isentropic efficiency of the turbine is 88 %, pressure and pump losses are negligible, and the water leaving the condenser is subcooled by 5.9 °C. The boiler is sized for a mass flow rate of 17 kg/s. Determine the following values. °C m®/kg 1 kJ/kg (1)...
Problem 2. (11 points) The ideal simple Rankine operates at a pressure of 100 kPa in the condenser and at a pressure of 4.5 MPa in the evaporator. The liquid leaving the condenser is a saturated mixture with quality x-0.8. The mass flow rate of steam in the cycle is 1.5 kg/s. Plot the cycle on power-generation cycle using steam (a) T-s diagram for steam; and determine (b) What is the maximum temperature (°C) of this Rankine cycle (c) the...
Consider a steam power plant operating on the simple ideal Rankine cycle. Steam enters the turbine at 5 MPa and 500°C and is condensed in the condenser at a pressure of 50 kPa. Heat is supplied to the steam in a furnace maintained at 800 K, and waste heat is rejected to the surroundings at 300 K. Show the cycle on a T-s diagram with respect to saturation lines, and determine (a) the net work output, (b) the thermal efficiency...
(30 points) Rankine Cycle An ideal Rankine cycle has a turbine power output of 4 MW. Saturated liquid at 20 kPa leaves the condenser, and the vapor at the exit to the isentropic turbine has a quality of 95 percent. The boiler pressure is 1.4 MPa. a. Find the mass flow rate of the steam (kg/s) b. What is the heat transfer into the boiler? c. What is the thermal efficiency for this cycle? Condenser
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