ME 235
Spring 2015
Exam 1
May 27, 2015 (6:00 PM - 7:00 PM)
Open textbook
1-8.5 x 11 sheet (double sided) formula sheet
Calculator
Closed notes
No computers
Honor code will be enforced. Your exam will
1
ME 235 HW set 2,
F2016
Ammonia at room temperature and room pressure has v 1 10n m3/kg what is n?
See Table B.2.2 it is a superheated vapor (gas).
n = 1 (v = 1.4153 m3/kg)
2
Determine the phase for
ME235
Exam 1 Winter 2017
ME235 Thermodynamics I
Winter 2017 Exam 1
Name
SOLUTIONS
Section
Score
Short answer questions:
27 points
Problem 7:
8 points
Problem 8:
25 points
Problem 9:
40 points
Total =
ME 235 EXAM 2, NOVEMBER 22, 2005 C. BORGNAKKE, ME Problem 1 (50 Points) Air at 300 K, 100 kPa in a rigid box is heated to 1000 K by a 1500 K source. a) Find the final pressure. b) Find the specific he
THE UNIVERSITY OF MICHIGAN
Department of Mechanical Engineering
ME 235 Thermodynamics I / Fall 2016
HW #5 Due Thursday October 13
1
A container is split in two equal volumes by a stiff membrane. One p
Borgnakke Sonntag
Fundamentals of
Thermodynamics
STUDY
PROBLEMS
CHAPTER 2
8e
CHAPTER 2
STUDY PROBLEMS
PROPERTIES OF A PURE SUBSTANCE
The vapor-liquid-solid phase equilibrium in a pure substance
Tables
ME 235 HW set 3,
Fall 2017
1
You are inflating a car tire to a gage pressure of 250 kPa. The process goes so
slowly that the temperature is nearly constant equal to ambient 20C. If the tire has
a fina
THE UNIVERSITY OF MICHIGAN
Department of Mechanical Engineering
ME 235 Thermodynamics I / Fall 2016
HW #6 Due Thursday October 27
1
An infinity pool is to be filled with 60 m3 water from a garden hose
ME 235 | Winter 2018 | Section 002
HW-3, due: Thursday Jan. 27, 2018 in Class
3 pts for every problem unless otherwise mentioned
1. You are inflating a car tire to a gage pressure of 300 kPa. The proc
Thermodynamics
Lecture 4: Work and Heat
(Chapters 4 & 5)
Today's objective:
1. Continue our discussion of:
Heat – different modes of heat
transfer.
2. Introduce:
First Law of Thermodynamics
+
+
Thus,
THE UNIVERSITY OF MICHIGAN
Department of Mechanical Engineering
ME 235 Thermodynamics I / Fall 2016
HW #6 Due Thursday October 27
1
An infinity pool is to be filled with 60 m3 water from a garden hose
THE UNIVERSITY OF MICHIGAN
Department of Mechanical Engineering
ME 235 Thermodynamics I / Fall 2016
HW #9 Due Thursday November 17
1
A piston/cylinder receives R-134a at 300 kPa and compresses it in a
QUESTION 1: Multiple choice. Circle the most appropriate answer. [8 points]
(a)
For the flow of an ideal gas through an adiabatic throttle, the temperature at the exit of the throttle
is _ the inlet t
Thermodynamics
ME 235
Prof. Angela Violi
Fall 2013
Homework #8 Solution
Due * Tuesday, 11/26 at 5:30 pm * box outside 3005 EECS
[Grade for the problem stated in brackets and italics]
1.
An ideal spark
THE UNIVERSITY OF MICHIGAN
Department of Mechanical Engineering
ME 235 Thermodynamics I / Fall 2016
HW #8 Due Thursday November 10
1
Compressed air flowing at 0.25 kg/s needs to be cooled to 0oC from
FIRST LAW for a CONTROL VOLUME
Both Mass & Energy can cross the boundaries of a
control volume the mass carries with it energy.
38
F
Conservation of Mass:
dmC .V .
m
i
dt
Total mass flow rate
into th
Thermodynamics
ME 235
Prof. Angela Violi
Fall 2013
Homework #5 Solution
Due *Friday,
10/25 at 4:30 pm* box outside 3005 EECS
[Grade for the problem stated in brackets and italics]
1.
Work is entropy f
Problem 1 Steam expands in a turbine steadily at a rate of 25, 000kg/h, entering at 6MP a and 450C and leaving at 20kP a as saturated vapor. If the power generated by the turbine is 4MW , determine th
ME235: Thermodynamics I
Exam #2
SECTIONS 001 AND 002 (Profs. Atreya and Siegel)
April 1, 2015
7:00pm 8:30pm
Exam Rules:
Open Textbook
One Page of Notes and Calculator Allowed
Printouts of Appendices A
Squad Strategy Notes
All positions are referenced with Zones 1 and 2 at the top of the playing field
Cubes from preceding zones can be mixed when picking up and transporting to the next zone because a
ME235: Thermodynamics I
Exam #2
November 20, 2014
7:00pm 8:30pm
SECTIONS 001 AND 002
Exam Rules
Open Textbook
One Page of Handwritten Notes and Calculator Allowed
Printouts of Appendices A and B Allow
ME235: Thermodynamics I
Exam #2
November 21, 2016
7:00pm 8:30pm
SECTIONS 001, 002, and 003
Exam Rules
Open Textbook
One Page of Handwritten Notes and Calculator Allowed
Printouts of Appendices A and B
Zonta Owens
ME 250 MS1
9/10/2016
MS1: Individual Strategy Proposal
Overall Strategy: Patience is bitter, but its fruit is sweet. Aristotle.
Due to lack of time and danger of possibly falling of the co
THE UNIVERSITY OF MICHIGAN
Department of Mechanical Engineering
ME 235 Thermodynamics I / Fall 2016
HW #10 Due Thursday December 1
1
A heat upgrade system uses a compressor receiving R-134a as saturat
ME235: Thermodynamics I
Exam #1
February 20, 2013
7:00pm 8:30pm
SECTIONS 001 AND 002
Exam Rules
Open Textbook
One Page of Handwritten Notes and Calculator Allowed
Printouts of Appendices A and B Allow
5.22
A large coal red power plant has an efciency of 45% and produces net 1,500
MW of electricity. Coal releases 25 000 kakg as it burns so how much coal is
used per hour?
5.27
A farmer nms a heat pum
6.111
The power stroke in an internal combustion engine can be approximated with a
polytropic expansion. Consider air in a cylinder volume of 0.2 L at 7 MPa, 1800 K,
shown in Fig. P6.]11. It now expan
THE UNIVERSITY OF MICHIGAN
Department of Mechanical Engineering
ME 235 THERMODYNAMICS I
Spring term 2017
Instructor:
C. Borgnakke, 2031 W.E. Lay Automotive Lab
Class:
Mon/Tue/Wed/Thu 10:30-12:00, 2505
ME 235 | Winter 2018 | Section 002
HW-1, not collected, for your own practice
3 pts for every problem unless otherwise mentioned
1. Sketch system boundaries to study the following systems (6 pts):
(a)
ME 235 | Winter 2018 | Section 002
HW-2, due: Thursday Jan. 18, 2018 in Class
3 pts for every problem unless otherwise mentioned
1. For each of the following states of refrigerant R-410A, use Table B.