Steam at 300 kPa and 700 degC enters a nozzle with a velocity of 20 m/s. It exits the nozzle at a pressure of 200kPa. Assume that the process is reversible and adiabatic. (a) What is the exit temperature? (b) What is the specific enthalpy at exit condition? (c) What is the exit velocity of the steam

Steam at 300 kPa and 700 degC enters a nozzle with a velocity of 20 m/s. It exits the nozzle at a pressure of 200kPa. Assume that the process is reversible and adiabatic. (a) What is the exit temperature? (b) What is the specific enthalpy at exit condition? (c) What is the exit velocity of the steam

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

An adiabatic expansion of 1 kg air (c P = 1.0062 kJ/kg K, k = 1.4) flow through a nozzle from 828 kPa and 344 K to 138 kPa. The initial velocity at entrance is negligible. Find the exit velocity in m/s
Air at 50 kPa, 100 °C and 5 m/s enters a pipe of diameter 14 cm and exits at 180 kPa and 400 °C. Assuming the air is heated as it flows through the pipe and that the diameter of the pipe is the same at both the inlet and outlet. Calculate: a. The volumetric flowrate of air at the inlet and exit of the pipe. b. The mass flowrate of air at the inlet and exit of the pipe. The rate at which heat is supplied to the system in kJ/s. с. Take the characteristic gas constant of air as 287 J/kg/K.
Q1-A diffuser receives Argon (cp=0.52kJ/kgK) at 100 kPa, 300K and 250m/s and the exit velocity is 25m/s. Determine the exit temperature? O The exit temperature = 217 K The exit temperature = 62031 K The exit temperature = -61719 K The exit temperature = 359.5 K This is a required question
Steam at 110.356 kPa and 140.356oC is compressed isothermally until the quality of steam is 70%. determine the change in volume, change of specific internal energy, the change of specific entropy, and heat.
There are 60,000 kcal/hr of heat extracted from 5.67 kg/s of carbon monoxide gas whie the temperature remains constant at 28°C The initial pressure is 600 kPaa. For both nonflow and steady flow (AP = 0, AK - 0) process, determine the change in entropy in kW/K. 0-423 O 012 O 034 O 023 O034
A quantity of an ideal gas in an isolated system expanded isothermally and reversibly at 400 K from a volume V1 to a volume V2. During the expansion, the gas absorbs 200 J of heat from the reservoir in contact with it. Calculate (a) the entropy change of the gas; (b) the entropy change of the reservoir, and (c) the entropy change of the whole system.Answer: a. 0.50b. -0.50 c. 0
3. Helium enters an adiabatic 100-mm-diameter pipe steadily, with a velocity of 75 m/s. At the pipe entrance, the gas is at 200 kPa and 20°C; and at the exit, it is at 180 kPa and 18°C. Calculate the rate at which entropy is generated in the pipe, in W/K. (Assume ideal gas behavior and cold-air-standard)
Answer all with solutions
Propane initially at 300 K and 100 kPa is is compressed to 1 MPa in a reversible, steady-flow, and compressor. Determine the amount of work in kJ/kg if the process is isothermal. Round your answer to one decimal place
thermodynamics
Dry saturated steam at 8 bar expands in a convergent nozzle to a pressure of 0.5 bar and 0.8 dryness fraction. Determine the exit velocity of the steam if the initial velocity of the stream is 125m/s
A- Air at 15°C and 1bar occupies 0.02 m³. The air is heated at constant volume until the pressure is 5bar, and then cooled at constant pressure back to the original temperature. Calculate the net heat flow to or from the air and the net entropy change. Sketch the process on a T-s diagram. (8.5marks)