![subject](/tpl/images/cats/User.png)
Engineering, 18.04.2020 00:24 anamatiascamaja
Consider a combined gas-steam power plant that has a net output of 280 MW. The pressure ratio of the gas-turbine cycle is 11. Air enters the compressor at 300 K and the turbine at 1100 K. The combustion gases leaving the gas turbine are used to heat the steam at 5 Mpa to 350°C in a heat exchanger.
The combustion gases leave the heat exchanger at 420 K. An open feedwater heater incorporated with the stem cycle operates of 0.8 Mpa. The condenser pressure is 10 kPa. Assuming isentropic efficiencies of 100% for the pump, 82% for the compressor, and 86% for the gas and steam turbines, determine
i. the mass flow ratio of air to steam;
ii. the required rate of heat input in the combustion chamber, and
iii. the thermal efficiency of the combined.
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Engineering
![question](/tpl/images/cats/User.png)
Engineering, 03.07.2019 15:10
Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?
Answers: 3
![question](/tpl/images/cats/User.png)
Engineering, 04.07.2019 18:10
The higher the astm grain-size number, the coarser the grain is. a)-true b)-false
Answers: 3
![question](/tpl/images/cats/User.png)
Engineering, 04.07.2019 18:10
Compute the pressure drop of 30°c air flowing with a mean velocity of 8 m/s in a circular sheet-metal duct 300 mm in diameter and 15 m long. use a friction factor, f 0.02, and pair = 1.1644 kg/m a. 37.26 pa b. 25.27 pa n c. 29.34 pa d. 30.52 pa
Answers: 1
![question](/tpl/images/cats/User.png)
Engineering, 04.07.2019 18:10
Courses that are developed by subject matter experts, internal or extemal to the college or university. these programs are marketed by the school (clo2) marks a)-vocational schools b)-vendor training c)-colleges & universities d)-continuing education programs
Answers: 2
You know the right answer?
Consider a combined gas-steam power plant that has a net output of 280 MW. The pressure ratio of the...
Questions
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 14.04.2021 17:30
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 14.04.2021 17:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 14.04.2021 17:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 14.04.2021 17:30
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 14.04.2021 17:30
![question](/tpl/images/cats/istoriya.png)
History, 14.04.2021 17:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 14.04.2021 17:30
![question](/tpl/images/cats/mat.png)
Mathematics, 14.04.2021 17:30
![question](/tpl/images/cats/mat.png)
Mathematics, 14.04.2021 17:30
![question](/tpl/images/cats/mat.png)
Mathematics, 14.04.2021 17:30
![question](/tpl/images/cats/mat.png)
Mathematics, 14.04.2021 17:30
![question](/tpl/images/cats/mat.png)