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1
Thermodynamics and Heat Powered Cycles: A Cognitive ...
Air at 2900°F and 550 psia contained in a tank expands isentropically. The final
volume is 5 times the initial volume. Find the (A) final pressure, (B) final
temperature, (C) heat transferred, (D) work done, and (E) change in entropy.
ANSWER: (A) ...
2
Fundamentals of Engineering Thermodynamics
6.125 Argon in a piston–cylinder assembly is compressed isentropically from
state 1, where p1 5 150 kPa, T1 5 358C, to state 2, where p2 5 300 kPa.
Assuming the ideal gas model with k 5 1.67, determine (a) T2, in 8C, and (b) the
work, in kJ ...
Michael J. Moran, Howard N. Shapiro, Daisie D. Boettner, 2010
3
Thermal-Fluid Sciences: An Integrated Approach
2.101 Steam expands isentropically from 2 MPa and 500 K to a final state in
which the steam is saturated vapor. What is the temperature of the steam at the
final state? 2.102 Steam expands isentropically from 2 MPa and 500 K to a final
state ...
Assume air to be an ideal gas with specific heats ratio γ = 1.4. [Answer: 519.9 K]
1.24 Air at 30◦C is compressed isentropically to occupy a volume that is 1/30 of its
initial volume. Assuming air to be an ideal gas, determine the final temperature.
Ethirajan Rathakrishnan, 2010
(10.3) It represents the total energy of the flowing fluid system and if the fluid
velocity is brought to zero isentropically; (q = 0, w = 0), then h02 =h01 ...(10.4) or
h1+ V12 2 =h2+0=h02 ...(10.5) Thus, the stagnation enthalpy or total enthalpy ...
potential energy change, the steady-flow energy equation reduces to , ^2 q - w -
hi + 2 k + 2^ = h02-hm -(10.3) It represents the total energy of the flowing fluid
system and if the fluid velocity is brought to zero isentropically; (q = 0, w = 0), then
...
One kg of steam at 17 bar and 245°C is expanded isentropically to 3 bar.
Calculate the final condition and volume of steam at the end of isentropic
expansion. Take C„ = 2.1 kJ/kgK. 11. One kg of steam at a pressure of 8.6 bar
and 0.92 dry ...
8
Thermodynamics: Concepts and Applications
2.101 Steam expands isentropically from 2 MPa and 500 K to a final state in
which the steam is saturated vapor. What is the temperature of the steam at the
final state? 2.102 Steam expands isentropically from 2 MPa and 500 K to a final
state ...
9
Gas Dynamics For Engineers, 1/e
As per the alternate definition, the stagnation temperature at any section may be
regarded as the static temperature at which the gas must be held in an infinite
reservoir from which it is accelerated isentropically to the value of velocity and ...
Balachandran, Balachandran P.
Determine the work done by this expansion. [Ans. 1.0335 MJ] 8. A gas at
pressure 150 kPa and density 1.5 kg/m3 is compressed to 690 kPa isentropically.
Determine the final density. Assume the isentropic index to be 1.3. [Ans. 4.85 kg/
m3] 9.
WIADOMOŚCI, KTÓRE ZAWIERAJĄ SŁOWO «ISENTROPICALLY»
Sprawdź, o czym dyskutuje się w prasie krajowej i zagranicznej oraz jak jest stosowane słowo
isentropically w wiadomościach.
Shifting entropy elsewhere
At best, this ramp-up procedure is isentropic and thus reducing the initial temperature by expanding the gas isentropically is no help. Present ... «Physics, Wrz 09»
Turning water into very hot ice, very, very quickly
By passing the 20 million amperes of current through a small aluminum chamber, a magnetic field is created that isentropically compresses ... «Ars Technica, Mar 07»
