Homework Answers
![To Exergy Destroged] = Esi Exerge) in- (Exergy) out = 4: -403 =mche-by) – T. (51-53)] = 3)16– 2361) -29866-244 – 7.275) 89 =](http://img.homeworklib.com/questions/2a5eec60-7b20-11ec-b014-314261b54a7a.png?x-oss-process=image/resize,w_560)
Add Answer to:
An insulated steam turbine receives 30 kg of steam per second at 3 MPa, 350 °C....
Steam with the mass flow rate of 0.75 kg/s enters an adiabatic turbine steadily at 19 MPa, 600°C and 150 m/s
Steam with the mass flow rate of 0.75 kg/s enters an adiabatic turbine steadily at 19 MPa, 600°C and 150 m/s, and leaves at 150 kPa and 350 m/s. The isentropic efficiency of the turbine is 85%. Neglect potential energy. (I) Determine the exit temperature of the steam, and its quality (if saturated mixture) (ii) Calculate the actual power output of the turbine, in kW (iii) Illustrate a T-s diagram with respect to saturation lines for the isentropic process by clearly indicating all pressure, temperature,...
An insulated steam turbine produces 8000 hp by accepting 30000 kg of steam at 10 MPa...
An insulated steam turbine produces 8000 hp by accepting 30000 kg of steam at 10 MPa each hour and discharging the steam at 20 kPa with a quality of 85%. Determine the inlet temperature and the turbine efficiency. 2.
The high-pressure turbine in a steam power plant has an inlet state of 3 MPa, 500°C....
The high-pressure turbine in a steam power plant has an inlet state of 3 MPa, 500°C. A 20% of the inlet mass flow is extracted from the turbine at a location where the pressure is 1 MPa and the temperature is 350°C. The remaining flow continuous to expand in the turbine, exiting the turbine at 2 bar, 200°C. Determine the: (a) inlet and exit flow exergies per mass flow rate of the inlet flow, (b) isentropic efficiency of the turbine,...
Consider an ideal steam regenerative cycle in which steam enters the turbine at 3.0 MPa, 400°C,...
Consider an ideal steam regenerative cycle in which steam enters the turbine at 3.0 MPa, 400°C, and exhausts to the condenser at 10 kPa. Steam is extracted from the turbine at 0.8 MPa to an open feedwater heater. The feed water leaves the heater as saturated liquid. The appropriate pumps are used for 2 the water leaving the condenser and the feed-water heater. Calculate (a) the thermal efficiency of the cycle, (b) the net work per kilogram of steam, and...
How do i solve C??? Please details Steam enters a two stage steady state turbine at 8 MPa and 500 C. It expands in the first stage to a state of 2 MPa and 350°C. Steam is then reheated at constant...
How do i solve C??? Please details
Steam enters a two stage steady state turbine at 8 MPa and 500 C. It expands in the first stage to a state of 2 MPa and 350°C. Steam is then reheated at constant pressure to a temperature of 500°C before it enters the second stage, where it exits at 30 kPa and a quality of 98%. The net power output of the turbine is 3 MW Assume the surroundings to be at...
Question 4 125 pointsl An industrial facility needs power as well as heat for process application....
Question 4 125 pointsl An industrial facility needs power as well as heat for process application. An innovative mechanical engineer suggested using a steam turbine to provide the power and extract part of the steam somewhere in the middle of the turbine to provide the process heat. Consider an insulated steam turbine which receives 30 kg/s of seam at 3 MPa, 350°C (state 1). At the point in the turbine where the pressure is 0.5 MPa and the temperature is...
In a reheat-cycle power plant, steam enters the high-pressure turbine at 5 MPa, 450°C, and expands...
In a reheat-cycle power plant, steam enters the high-pressure turbine at 5 MPa, 450°C, and expands to 0.5 MPa, after which it is reheated to 450°C. The steam is then expanded through the low-pressure turbine to 7.5 kPa. Liquid water (Vi 0.001 m/kg) leaves the condensor at 30°C, is pumped to 5 MPa, and returned to the steam generator. Each turbine is adiabatic, with an isentropic efficiency of 81.6 % and the pump efficiency is 848 %. If the total...
A steam turbine receives 8 kg/s of steam at 9 MPa, 650 C and 60 m/s...
A steam turbine receives 8 kg/s of steam at 9 MPa, 650 C and 60 m/s (pressure, temperature and velocity). It discharges liquid-vapor mixture with a quality of 0.94 at a pressure of 325 kPa and a velocity of 15 m/s. In addition, there is heat transfer from the turbine to the surroundings for 560 kW. Find the power produced by the turbine and express it in kW
Steam enters an adiabatic turbine steadily at 3 MPa and 450°C at a rate of 8...
Steam enters an adiabatic turbine steadily at 3 MPa and 450°C at a rate of 8 kg/s and exits at 0.2 MPa and 150*C. If the surrounding air is at 25°C and 100 kPa, determine: a. The specific flow exergy of steam at turbine entrance b. The specific flow exergy of steam at turbine exit c. The rate of flow exergy change in the process.
The gas turbine cycle of a gas-steam combined cycle power plant has a pressure ratio of...
The gas turbine cycle of a gas-steam combined cycle power plant has a pressure ratio of 12. The air enters the compressor at 310 K and 100 kPa (1) and the turbine at 1400 K (3). The combustion gases leaving the gas turbine (4) are used to heat the steam to 12.5 MPa up to 500 °C (6) in a heat exchanger. The flue gas exits the heat exchanger (5) at 247 °C. The steam is expanded in a high...
An insulated steam turbine produces 8000 hp by accepting 30000 kg of steam at 10 MPa each hour and discharging the steam at 20 kPa with a quality of 85%. Determine the inlet temperature and the turbine efficiency. 2.
How do i solve C??? Please details
Steam enters a two stage steady state turbine at 8 MPa and 500 C. It expands in the first stage to a state of 2 MPa and 350°C. Steam is then reheated at constant pressure to a temperature of 500°C before it enters the second stage, where it exits at 30 kPa and a quality of 98%. The net power output of the turbine is 3 MW Assume the surroundings to be at...
Question 4 125 pointsl An industrial facility needs power as well as heat for process application. An innovative mechanical engineer suggested using a steam turbine to provide the power and extract part of the steam somewhere in the middle of the turbine to provide the process heat. Consider an insulated steam turbine which receives 30 kg/s of seam at 3 MPa, 350°C (state 1). At the point in the turbine where the pressure is 0.5 MPa and the temperature is...
In a reheat-cycle power plant, steam enters the high-pressure turbine at 5 MPa, 450°C, and expands to 0.5 MPa, after which it is reheated to 450°C. The steam is then expanded through the low-pressure turbine to 7.5 kPa. Liquid water (Vi 0.001 m/kg) leaves the condensor at 30°C, is pumped to 5 MPa, and returned to the steam generator. Each turbine is adiabatic, with an isentropic efficiency of 81.6 % and the pump efficiency is 848 %. If the total...
Steam enters an adiabatic turbine steadily at 3 MPa and 450°C at a rate of 8 kg/s and exits at 0.2 MPa and 150*C. If the surrounding air is at 25°C and 100 kPa, determine: a. The specific flow exergy of steam at turbine entrance b. The specific flow exergy of steam at turbine exit c. The rate of flow exergy change in the process.
Most questions answered within 3 hours.
-
A grinding wheel is in the form of a uniform solid disk of
radius 7.10 cm...
asked 2 minutes ago -
as licensed professionals doarchitects and enineers have a
responsability to address future conditions ( and future...
asked 1 minute ago -
A 5Kg block of ice at -10 C is heated until it reaches a
temperature of...
asked 7 minutes ago -
Calculate how many grams of DNA solution you would need to
obtain to load 1.2ug of...
asked 7 minutes ago -
1. The following reaction forms 15.8 g of Ag(s):
2Ag2O(s)→4Ag(s)+O2(g) What total volume of gas forms...
asked 10 minutes ago -
In Java, if you wanted to get the pixel that is in the
bottom-right hand corner...
asked 18 minutes ago -
After receiving an answer that contains one or more
counterclaims, a plaintiff files a reply that...
asked 26 minutes ago -
From the end of a string (whose other end is firmly attached to
the ceiling) we...
asked 34 minutes ago -
When a firm is in an increasing-cost industry, a decrease in
demand will result in economic (Click...
asked 1 hour ago -
1. Explain what the advantages are of having a System on a Chip
rather than separate...
asked 1 hour ago -
A turbine is spinning freely at 3750 rpm. It takes 10 min to
coast to a...
asked 1 hour ago -
home / study / business / operations management / operations
management questions and answers / eastman...
asked 1 hour ago