Login
Login
Register
Questions
Unanswered
Tags
Categories
Ask a Question
Ask a Question
Recent questions tagged steady single flow devices
+2
votes
1
answer
In a heat-powered refrigerator, a turbine is used to drive the compressor using the same working fluid. Consider the combination
asked
Mar 14, 2019
in
Mathematics
by
kratos
thermodynamics
reversible processes
steady single flow devices
processes multiple devices
steady state
+1
vote
1
answer
One lbm of air at 540 R is mixed with one lbm air at 720 R in a process at a constant 15 psia and Q = 0. Find the final T and the entropy
asked
Feb 11, 2019
in
Mathematics
by
kratos
thermodynamics
energy equation
steady single flow devices
+3
votes
1
answer
Air at 60 ft/*, 480 R, 11 psia with 10 lbm/* flows into a jet engine and it flows out at 1500 ft/*, 1440 R, 11 psia. What is the change
asked
Feb 10, 2019
in
Mathematics
by
kratos
thermodynamics
single flow devices
steady single flow devices
+1
vote
1
answer
Can you say something about changes in m and V through a steady flow device?
asked
Feb 4, 2019
in
Mathematics
by
kratos
compressors
fans
availability
thermodynamics
steady single flow devices
device efficiency
+2
votes
1
answer
Air at 1 atm, 60 F is compressed to 4 atm, after which it is expanded through a nozzle back to the atmosphere. The compressor
asked
Jan 29, 2019
in
Mathematics
by
kratos
steady state
bernoulli
thermodynamics
steady single flow devices
reversible shaft work
processes multiple devices
+1
vote
1
answer
A closed tank, V = 0.35 ft^3, containing 10 lbm of water initially at 77 F is heated to 350 F by a heat pump that is receiving heat
asked
Jan 13, 2019
in
Mathematics
by
kratos
thermodynamics
rates or fluxes of entropy
steady single flow devices
+1
vote
1
answer
One lbm of air at 15 psia is mixed with one lbm air at 30 psia, both at 540 R, in a rigid insulated tank. Find the final state (P, T) and the entropy
asked
Dec 23, 2018
in
Mathematics
by
kratos
thermodynamics
ideal gas
steady single flow devices
+1
vote
1
answer
Assume both the compressor and the nozzle in Air at 100 kPa, 17°C is compressed to 400 kPa after which it is expanded through a nozzle b
asked
Dec 17, 2018
in
Mathematics
by
kratos
bernoulli
availability
available energy
thermodynamics
reversible work
steady single flow devices
processes multiple devices
reversible shaft work
steady state
+1
vote
1
answer
In a heat pump that uses R-134a as the working fluid, the R-134a enters the compressor at 30 lbf/in.^2, 20 F at a rate of 0.1 lbm/*.
asked
Dec 12, 2018
in
Mathematics
by
kratos
bernoulli
thermodynamics
reversible processes
steady single flow devices
reversible shaft work
steady state
+3
votes
1
answer
Air enters a turbine at 800 kPa, 1200 K, and expands in a reversible adiabatic process to 100 kPa. Calculate the exit temperature
asked
Dec 10, 2018
in
Mathematics
by
kratos
thermodynamics
reversible processes
steady single flow devices
device efficiency
steady state
+3
votes
1
answer
The exit nozzle in a jet engine receives air at 1200 K, 150 kPa with neglible kinetic energy. The exit pressure is 80 kPa and the process
asked
Nov 11, 2018
in
Mathematics
by
kratos
thermodynamics
reversible processes
steady state
steady single flow devices
+1
vote
1
answer
In a steady state single flow * is either constant or it increases. Name the process.
asked
Nov 6, 2018
in
Mathematics
by
kratos
compressors
fans
bernoulli
thermodynamics
steady single flow devices
reversible shaft work
exergy balance equation
+3
votes
1
answer
A diffuser is a steady-state, steady-flow device in which a fluid flowing at high velocity is decelerated such that the pressure increases
asked
Oct 25, 2018
in
Mathematics
by
kratos
thermodynamics
reversible processes
steady state
steady single flow devices
+1
vote
1
answer
Air at 150 psia, 540 R is throttled to 75 psia. What is the specific entropy generation?
asked
Oct 16, 2018
in
Mathematics
by
kratos
thermodynamics
steady single flow devices
+1
vote
1
answer
A diffuser is a steady-state device in which a fluid flowing at high velocity is decelerated such that the pressure increases in the process.
asked
Oct 12, 2018
in
Mathematics
by
kratos
thermodynamics
steady state
reversible processes
steady single flow devices
+2
votes
1
answer
Liquid water is sprayed into the hot gases before they enter the turbine section of a large gasturbine power plant. It is claimed that the larger mass
asked
Oct 5, 2018
in
Class 10
by
kratos
specific heat capacity
latent heat
thermodynamics
the second law of thermodynamics
class-10
icse
steady single flow devices
exergy balance equation
processes multiple devices
steady state
+1
vote
1
answer
Air at 1 atm, 60 F is compressed to 4 atm, after which it is expanded through a nozzle back to the atmosphere. The compressor
asked
Sep 13, 2018
in
Mathematics
by
kratos
reversible shaft work
thermodynamics
steady single flow devices
bernoulli
+2
votes
1
answer
A jet-ejector pump, shown schematically is a device in which a low-pressure (secondary) fluid is compressed by entrainment in a high-velocity
asked
Sep 10, 2018
in
Mathematics
by
kratos
thermodynamics
steady state
reversible processes
steady single flow devices
+2
votes
1
answer
A compressor receives R-134a at 20 F, 30 psia with an exit of 200 psia, x = 1. What can you say about the process?
asked
Sep 10, 2018
in
Mathematics
by
kratos
available energy
thermodynamics
reversible processes
reversible work
steady single flow devices
steady state
+2
votes
1
answer
Two flowstreams of water, one at 100 lbf/in.^2, saturated vapor, and the other at 100 lbf/in.^2, 1000 F, mix adiabatically in a steady flow process
asked
Sep 8, 2018
in
Mathematics
by
kratos
thermodynamics
steady single flow devices
steady state
irreversible processes
To see more, click for the
full list of questions
or
popular tags
.