1
ME 300 Special Problem Set #8
Due 10 March 2014
Problem SP20 A piston-cylinder device having an initial total volume V1 = 1.0 m3 contains
carbon dioxide (CO2) at a pressure p1 = 0.5pc and a temperature T1 = 1.5Tc. Constant
pressure heat transfer occurs
_
Problems: Developing Engineering Skills 375
374 chape Exergy Analysis
7.7 When matter ows across the boundary of a control vol which To = 20°C, p0 = 1 bar. Using the ideal gas model,
ume, an energy transfer by work, called ow w
72
Chtlft&y2 Energy and t he First Law o f Thermodynamics
2.27 A gas is compressed from VI = 0.3 m 3, PI = 1 b ar t o
V 2 = 0.1 m3, P 2 = 3 bar. Pressure and volume a re r elated lin
early during the process. For the gas, find the work, in kJ.
2 .28 Nit
SP-5A Solution
Tuesday, August 29, 2017
8:39 AM
GIVEN:
A proposed cycle involves an insulated cylinder in which 0.005 lbm of air at 15 psia and
600R (State 1) is compressed to 170 psia and 1200R (State 2). The boundary temperature is 540R.
Molar mass for
ME 300 - COURSE SCHEDULE - Fall 2017
Instructors: Sameer V. Naik, Jay P. Gore, and Satish C. Boregowda
Lect
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Day
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Date
21-Aug
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ME300 Thermodynamics II Fall 2014
Lecture 4: Transient Energy Conservation
Jay P. Gore
(D) Conservation of Energy during Transient Processes
%
1
2
2
Many practical problems with their appropriate approximations allow a solution to this equation.
Examples
ME 300 COURSE POLICY AND SCHEDULE
FALL 2017
1. INSTRUCTORS
Division 1: 2:30 to 3:20 p.m. MWF in ME-2061
Sameer V. Naik
Email: [email protected]
Office Hours: 3:30 p.m. to 4:30 p.m. MWF in ME-G092
Phone: 496-2183
Division 2: 10:30 to 11:20 a.m. MWF in ME-2
ME 300 Fall 2017
HW#2: Special Problems SP5-SP6
Due Wednesday, September 6
(SP5A) A proposed cycle involves an insulated cylinder in which 0.005 lbm of air at 15 psia and
600R (State 1) is compressed to 170 psia and 1200R (State 2). The boundary temperat
ME 300 Fall 2017
HW#4: Special Problems SP10-SP12
Due Wednesday, September 20
(SP10) Water at 3 MPa and 400C (State 1) flows through a specially cooled turbine in a
constant volume process to exit as a saturated vapor (State 2). Assume that any heat
trans
ME 300 Fall 2017
HW#3: Special Problems SP7-SP9
Due Wednesday, September 13
(SP7) A proposed cycle involves an insulated cylinder in which 0.005 lbm of air at 15 psia and
600R (State 1) is compressed to 170 psia and 1200R (State 2). Molar mass for air is
ME 300: Thermodynamics II
Fall 2016
Division 3
Quiz 4
Name
Sameer Naik
1. Which of the following is (are) conserved in a chemical reaction? (2 points)
Total Pressure
Total Mass
Total Moles
Elemental Atoms
+2
2. Which of the following cause(s) incomplete c
ME 300: Thermodynamics II
Fall 2016
Division 3
Quiz 3
Name
Sameer Naik
1. Exergy is always positive. (2 points)
True
False
+2
Insufficient Information
2. Exergy change is always positive. (2 points)
True
False
+2
Insufficient Information
3. Exergy of a sy
ME 300: Thermodynamics II
Fall 2016
Division 3
Quiz 1
Name
Sameer Naik
1. Which of the following is (are) true for superheated vapor? (2 points)
T < Tsat
P < Psat
T > Tsat
P > Psat
+2
2. What is the quality for a saturated liquid-vapor mixture? (2 points)
ME 300: Thermodynamics II
Fall 2016
Division 3
Quiz 5
Name
Sameer Naik
1. Which of the following results in the highest adiabatic flame temperature when a
fuel is burned? (2 points)
100% Theoretical Air
100% Theoretical Oxygen
200% Theoretical Air
50% The
ME 300: Thermodynamics II
Fall 2016
Division 3
Quiz 6
Name
Sameer Naik
1. Which of the following components in a Rankine cycle has the highest exergy
destruction? (2 points)
Turbine
Pump
+2
Condenser
Boiler
2. Which of the following represent(s) external
ME 300: Thermodynamics II
Fall 2016
Division 3
Quiz 2
Name
Sameer Naik
1. Which of the following is (are) true for liquid? (2 points)
T
P
T
v
s C p ln 2 R ln 2
s C v ln 2 R ln 2
T1
P1
T1
v1
T
s C ln 2
T1
s s f T2 s f T1
+2
2. Which of t
ME 300 Fall 2016 Homework#1
Due Wednesday, August 31, 2016
Textbook Problem 3.38
Answers: (a) T = -14.66C, u = 153.67 kJ/kg; (c) T = 44.5C, v = 0.2971 m3/kg
Textbook Problem 3.42
Answers: (b) h = 77.24 Btu/lbm; (d) u = 42.32 Btu/lbm
Textbook Problem 3.92
ME300 Thermodynamics II Fall 2014
Lecture 3: Example Problems and Transient Mass Conservation
Jay P. Gore
(A) Conservation of Mass and Energy
=
1
1
2
2
If mass inflow and mass outflow are negligible
Q W
Qt Wt
If $ , & '( )* *+)(
If $ , & negligible, no
St
L8
Exergy Analysis - Open System
I.
II.
The flow exergy
Exergy balance: open systems
I.
Dr. Gore
The flow exergy
State o
1)
What is the maximum theoretical
work (energy) that could be obtained
if the stream was brought to the dead
state?
Energy balance:
0
ME 300 HW 1
(SP1) A football consists of pigskin shell and an air inflation bladder and weighs 0.411 kg
prior to air inflation. The volume of the air inflation bladder is 4237 cm3 when expanded
to be in uniform contact with the pigskin shell. An Indianapo
ME 300 Fall 2017
HW#5: Special Problems SP13-SP15
Due Wednesday, September 27
(SP13) A closed, rigid container of volume of 1.2 m3 contains moist air initially at 140C dry
bulb temperature, 0.35 MPa pressure, and 60% relative humidity (State 1). The moist
ME 300 Fall 2017
HW#4: Special Problems SPIO-SPIZ
Due Wednesday, September 20
(SPIO) H20 at 3 MPa and 400C (state 1) ows through a specially cooled turbine in a constant
volume process to exit as a saturated vapor at state 2.
(1) Find the pressure (bar) a
ME 300 Fall 2014
Homework#13
Due Friday, December 12, 2014
SP-38 and SP-39:
Consider a turbojet aircraft engine flying with a velocity of 320 m/s at 9150 m where the
ambient pressure is 32 kPa and the ambient temperature is -33C (State a). The pressure
ra
File:C:\Users\naiks\Desktop\SP_3637.EES
EES Ver. 9.698: #180: Mechanical Engineering, Purdue University
12/6/2014 5:40:47 PM Page 1
cfw_ME-300 Fall 2014 SP-36/SP-37
cfw_Given: Brayton cycle with intercooling, reheating, and regeneration for stationary pow
1
Last Name _
First Name _
CIRCLE YOUR LECTURE BELOW:
8:30 am
Prof. Lucht
10:30 am
Prof. Chen
3:30 pm
Prof. Goldenstein
EXAM # 2 ME 300 SP2017
INSTRUCTIONS
1. Please place all your electronics, including but not limited to cell phones, computers,
watches,
1
ME 300 Special Problem Set #7
SP17-SP19
Due Wednesday, 1 March 2017
Problem SP17. Carbon monoxide (CO) gas is stored at a pressure of 70 bars and a temperature
of -110C in a tank with a volume of 10 m3. Calculate the mass of CO in the tank using
(a)
(b)
1
ME 300 Special Problem Set #6
Due Wednesday, 22 Feb 2017
Problem SP14. A rigid tank with a volume of 0.7 m3 initially contains moist air at a temperature
of 60C, and a total pressure of 3 bar (state 1). The rigid tank is placed in contact with a 5C
temp
1
ME 300 Special Problem Set #5
Due 15 Feb 2017
Problem SP11. An ideal gas mixture contains 0.1 kg of N2, 0.02 kg of H2, 0.2 kg of CO2, and
0.5 kg of C4H10 (n-butane). The mixture temperature is 350 K and the mixture pressure is 50
kPa. Determine:
(a) The
ME 300: THERMODYNAMICS II
BASIC EQUATION SHEET FALL 2017
Governing Principles
Mass Balance: dmCV m i m e
dt
i
Closed System: m constant
e
2
2
Energy Balance: dECV Q CV WCV m i hi i gzi m e he e gze
2
Closed System: E U KE PE Q W
dt
i
Entropy Balance: dSC
ME 300 HW 3
(SP 7)
A proposed cycle involves an insulated cylinder in which 0.005 lbm of air at 15 psia and 600R (State 1) is
compressed to 170 psia and 1200R (State 2). Molar mass for air is 28.97 lbm/lbmol and its specific heats
vary with temperature. T
Recall equation (1) and substitute
With the density mass of gas is
gas is
for
.
, the density mass of mixture is
, and the volume rate of mixture is
Since the total volume of the particles is negligible,
equal to the volume rate of mixture,
, the volume r
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Chapter 3, Problem 10P
Mechanics and The
Comment
Step 6 of 7
Calculate the Mach number of outlet stream parallel to the shock by using following equation:
Here,
is the downstream Mach number in the tangential direction.
Substitute
for
and 0.791 for
.
Comment
Step 7 of 7
Calculate the air deflect