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Solution
I think it is false statement
Explanation
there are different methods to
increase the thermal efficiency of rankine cycle
1. By lowering the pressure on condenser side
2. By heating the steam at high trmptempera
3. Increase in the pressure in boiler
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8. (T) (F). One way to increase the thermal efficiency of a Rankine cycle by rejecting...
Q1: What is the cycle efficiency of an ideal Rankine cycle with Refrigerant R134a operating between 8 bar and 1 bar and...
Q1: What is the cycle efficiency of an ideal Rankine cycle with Refrigerant R134a operating between 8 bar and 1 bar and at a maximum cycle temperature of 150C? Q2: Suggest a condenser pressure for an ideal Rankine cycle using water as a working fluid that uses a lake as a thermal reservoir to reject heat to if the lake can sometimes reach temperatures of 25C. The pressure should be chosen to maximize cycle efficiency
What is the thermal efficiency of the Rankine Cycle? = nth Wout Lin O nth -1...
What is the thermal efficiency of the Rankine Cycle? = nth Wout Lin O nth -1 TH TL Wout O nth Lout O nth 1 TL ΤΗ Yout = nth =1- Pin Onth Wnet Inet Match the following modified Rankine cycles with their descriptions: Ideal Reheat Rankine Cycle ✓ [Choose ] The turbine expands the steam in two stages. Between Stage 1 and Stage 2, the steam returns to the boiler where heat is transferred to the steam in a...
Find the thermal efficiency of the cycle and fill in the table for the values of...
Find the thermal efficiency of the cycle and fill in the table for the values of the properties and the phase of the state. 1. Consider a steam power plant operating on the ideal Rankine cycle. Determine the thermal efficiency of this cycle. Boiler 13 4 MPa 450 °C Pump Turbine 7.5 kPa 04 Condenser Condenser State Phase Known Properties Unknown Properties
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 ....
(2) Steam generated in a Rankine steam power cycle at a pressure of 8 MPa and...
(2) Steam generated in a Rankine steam power cycle at a pressure of 8 MPa and temperature 600°C is fed to a turbine. Exhaust from the turbine enters a condenser at 100 kPa, where it is condensed to saturated liquid, which is then pumped to the boiler. (a) (20 pts.) What is the thermal efficiency n of an ideal Rankine cycle operating at these conditions? (b) (5 pts.) If the net power production of the cycle is 80,000 kW, what...
(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
Steam generated in a Rankine steam power cycle at a pressure of 8 MPa and temperature...
Steam generated in a Rankine steam power cycle at a pressure of 8 MPa and temperature 600oC is fed to a turbine. Exhaust from the turbine enters a condenser at 100 kPa, where it is condensed to saturated liquid, which is then pumped to the boiler. (a) (20 pts.) What is the thermal efficiency η of an ideal Rankine cycle operating at these conditions? (b) (5 pts.) If the net power production of the cycle is 80,000 kW, what is...
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...
Consider a steam power plant which operates on the simple ideal Rankine cycle (shown in the...
Consider a steam power plant which operates on the simple ideal
Rankine cycle (shown in the next page), where the boiler pressure
is 3 MPa and the condenser saturation temperature is 50°C. The
temperature at the exit of the boiler is 500°C. Water leaves the
condenser as a saturated liquid. The mass flow rate through each
component is 15 kg/s. Calculate:
1. The power output of the steam power plant
2. The thermal efficiency of the steam power plant
Now,...
Water is the working fluid in a Rankine cycle. Superheated vapor enters the turbine at 10...
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What is the thermal efficiency of the Rankine Cycle? = nth Wout Lin O nth -1 TH TL Wout O nth Lout O nth 1 TL ΤΗ Yout = nth =1- Pin Onth Wnet Inet Match the following modified Rankine cycles with their descriptions: Ideal Reheat Rankine Cycle ✓ [Choose ] The turbine expands the steam in two stages. Between Stage 1 and Stage 2, the steam returns to the boiler where heat is transferred to the steam in a...
Find the thermal efficiency of the cycle and fill in the table for the values of the properties and the phase of the state. 1. Consider a steam power plant operating on the ideal Rankine cycle. Determine the thermal efficiency of this cycle. Boiler 13 4 MPa 450 °C Pump Turbine 7.5 kPa 04 Condenser Condenser State Phase Known Properties Unknown Properties
(2) Steam generated in a Rankine steam power cycle at a pressure of 8 MPa and temperature 600°C is fed to a turbine. Exhaust from the turbine enters a condenser at 100 kPa, where it is condensed to saturated liquid, which is then pumped to the boiler. (a) (20 pts.) What is the thermal efficiency n of an ideal Rankine cycle operating at these conditions? (b) (5 pts.) If the net power production of the cycle is 80,000 kW, what...
(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
Consider a steam power plant which operates on the simple ideal
Rankine cycle (shown in the next page), where the boiler pressure
is 3 MPa and the condenser saturation temperature is 50°C. The
temperature at the exit of the boiler is 500°C. Water leaves the
condenser as a saturated liquid. The mass flow rate through each
component is 15 kg/s. Calculate:
1. The power output of the steam power plant
2. The thermal efficiency of the steam power plant
Now,...
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