QUESTION 1 "Water vapor enters a turbine at 6 MPa and 500 C, and leaves the turbine at 100 kPa with the same specific entropy as that at the inlet. Calculate the difference (a positive number in kJ/kg) between the specific enthalpy of the water at the turbine inlet and exit." Click Save and Submit to save and submit. Click Save All Answers to save all answers.

QUESTION 1 "Water vapor enters a turbine at 6 MPa and 500 C, and leaves the turbine at 100 kPa with the same specific entropy as that at the inlet. Calculate the difference (a positive number in kJ/kg) between the specific enthalpy of the water at the turbine inlet and exit." Click Save and Submit to save and submit. Click Save All Answers to save all answers.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

A 20 kg/s steam enters a turbine at an initial enthalpy of 2456kJ/kg and exits at 1987 kJ/kg. If the kinetic energy of the steam decreases by 10 kJ/s, how much is the turbine work? Draw a schematic diagram,andthen plot the state/s and process, whichever is applicable in a t-sdiagram
Compute the change in specific entropy when helium, initially at a temper-ature of 273 K and a pressure of 100 kPa, undergoes the following processes: a.An isochoric process with final pressure 250 kPa b.By computing the change in specific entropy, determine whether it is possible foran adiabatic process to bring the gas to a final temperature of 200 K and a densityof 0.3 kg/m3. If not, why not? And if so, how could it be done?
please help with following problems: (a) Determine the heat exchanged between the piston/cylinder and the heatreservoir in kJ. Is heat added to the system or rejected to the heatreservoir? (b) Determine the change of entropy of the system in kJ/K. Is the resultreasonable? (c) Determine the entropy generation in kJ/K (change of entropy of thesystem+entropy change of the heat reservoir).
Ammonia with MW=17, weighing 22kg is confirmed inside a cylinder equipped with a piston has initial pressure of 413kPa and 48C. if 2900kJ of heat is added until the final pressure is 413kPa and final temperature is 100C. Determine the change in entropy kJ/K
Box the final answer. Write legibly. Steam flows into a turbine at a rate of 3.5 kg/s and ¾ MW of heat are lost from the turbine. Ignoring elevation and kinetic energy effects, calculate the power output from the turbine in KW? Steam pressure entering the turbine is 62 Bar at 440ºC and leaves at 74 Kpa.
Select the correct expression for steady flow work of a reversible compressor_________ A. B. C. D.
Question 3 Under ideal conditions, if the inlet velocity is zero, the velocity of steam in m/s at the outlet outlet of a nozzle for a enthalpy drop of 427 kJ/kg from the inlet reservoir condition up to the exit is..........
10. Steam at 173.46 degrees celcius and with a specific entropy of 6 kJ/ kg K undergoes a polytropic process with n= 1.18 until the pressure becomes 2 MPa. (a) What is the final temperature of the steam? (b) What is the work and the quantity of the heat of the process? NOTE: - INDICATE THE PV and TS DIAGRAM - INDICATE THE INITIAL AND FINAL STATE OF THE SUBSTANCE.
Methane is throttled from a saturated liquid at 152.9 K (Stream 1) to 0.464 MPa (Stream 2) where it is a saturated mixture. Assuming methane has a constant Cp of 2.2537 kJ/(kg K), use the Generalized Charts provided on eClass to determine:a) the pressure of Stream 1 (in MPa) and the temperature of Stream 2 (in K)b) the quality of the exit stream in %c) the entropy generation per kg being throttled, in kJ/(kg K)d) the specific volume of the methane in Stream 1, in m3/kgNote: Use the Generalized Charts provided on eClass to solve this problem. You will not be able to use the Charts in the textbook to solve this problem since they do not cover all the regions of the phase diagram.
A process innovated by Engr. Santioque is considered to be in a constant pressure. If there is tenkilograms of air has a decrease of internal energy of 35 BTU while its Fahrenheit temperature is reduced to one half of the initial temperature during a reversible non flow process. Determine (a) the initial and final temperatures, (b) heat, (c) work, and (d) the change in entropy.
One tenth Kilogram of a gas in a piston-cylinder assembly undergoes a Carnot power cycle for which the isothermal expansion occurs at 800K. The change in specific entropy of the gas during the isothermal compression, which occurs at 400K, is -25 kj/kg*K. Determine (a) the net work developed per cycle in KJ and (b) the thermal efficiency.
In a house, room temperatures are desired to be kept constant at 21 ° C. For this purpose, the temperature of the water entering the radiator with a flow rate of 5 kg / min is initially 90 ° C (saturated liquid), but drops to 70 ° C at the radiator outlet. According to this;a) entropy change of waterb) The entropy change of the roomc) Calculate the total entropy change.