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Steam is supplied to a turbine and exhausts at 0.1 bar, saturated. The mass flow rate of steam is 8.33 kg/s. The seawat...
3-40 In the condenser of a steam power plant the steam from the turbine enters the condenser at 0.10 bar with a quality of 95 percent and leaves at the same pressure as a saturated liquid. The steam is condensed by transferring heat to a stream of cooling water which enters at 1.3 bars and 5°C and leaves the heat exchanger at 1.2 bars and 25°C·The environmental temperature is 5°C. Determine a. the change in stream availability (exergy) of the...
To a steam turbine comes 10 kg / s 10 bar steam at the temperature of 400 ° C. The steam leaves the turbine at a pressure of 10 kPa. The isentropic efficiency is 90%, and the other efficiency is a total of 87%. a. Determine the electrical power supplied by the generator connected to the steam turbine. b. The steam after the turbine is condensed into saturated liquid in a condenser. How much work must the pump supply to...
Steam is the working fluid in a simple, ideal Rankine cycle. Saturated vapor enters the turbine at 8 MPa and saturated liquid exits the condenser at a pressure of 8 kPa. The net power output of the cycle is 100 MW. Determine for the cycle: i. Thermal efficiency ii. Back work ratio iii. Mass flow-rate of the steam in kg/h iv. Rate of heat transfer to the working fluid as it passes through the boiler in MW v. Rate of...
Thermodynamics
1. Saturated liquid H20 at 16 MPa is fed into the boiler of a variant of a Carnot cycle (but simplified Rankin cycle) where the working fluid is not an ideal gas. Saturated H20 vapor is fed into the turbine of the same turbine. The condenser of this turbine is operated at 8 kPa. The mass flowrate of the H20 in this cycle is 7.2x103 kg/min. Draw the path of this process on T-s diagram. Estimate the thermal efficiency...
Problem 4 In the vapor power cycle shown below, steam (H20) is the working fluid. Saturated vapor enters the turbine at 100 bar and saturated liquid exits the condenser at a pressure of 0.1 bar. The net power output of the cycle, Weycle, is 150 MW. Isentropic efficiency of the turbine and the pump (n (hi-h2)/(h1-h2s), np=(h25-h1)/(h2-h1)) are both 80%. Determine the followings. [30 pts] (a) Thermal efficiency, n (b) Mass flow rate of the steam, m, in kg/s (c)...
Steam enters a turbine with mass flow rate of 62.0 kg/s. The inlet pressure is 80.0 bar and temperature 350°C. The outlet contains saturated steam at 5.0 bar. At steaady state calculate the power generated by the turbine in kW.(you need to report positive number). Assume negligible heat loss.
ME 3-106 a) in a thermal power plant, steem KE and PE, show the change e steam from the turbine enters the at the circulated through the condenser and exits at required control volume for the analysis and then 9 The ratio of the mass Roe rate of the cooling water to the mass flow rate of the steam ki/s, if the steam flow rate is 1 kg/s thermal efficiency of the power plant? ) The amount of heat removed...
Superheated steam at 20 MPa, 560oC enters the turbine of a vapor power plant. The pressure at the exit of the turbine is 0.7 bar, and liquid leaves the condenser at 0.4 bar at 75oC. The pressure is increased to 20.1 MPa across the pump and the specific enthalpy is 338.14 kJ/kg. The turbine isentropic efficiency is 81%. Cooling water enters the condenser at 20oC with a mass flow rate of 70.7 kg/s and exits the condenser at 38oC. For...
Problem 2: (50 points) Steam is the work Saturated vapor enters the turbine at (50 points) Steam is the working fluid in an ideal Rankine cycle. ated vapor enters the turbine at BO MPa and saturated liquid exits the ser at a pressure of 0.006 MPa. The not power output of the cycle is 500 MW.Also he = 1812.2 kJ/kg and he 157.56 kJ/kg a. Thermal Efficiency (30 points) b. Mass flow rate in kg/h (20 points) c. Bonus: Qin...
Consider the Rankine cycle below with steam flow rate of 5kg/s. The steam receives heat from the combustion gases in the furnace of the generator; assume the combustion gases change temperature from 2000°K to 425 K in flowing through the steam generator. The cooling water enters the condenser 20°C and leaves at 40°C. Assume the flow in the pump and the turbine is adiabatic and internally reversible. Also assume the combustion gas has the properties of air. If To is...