Assignment # 4
MS/ME 505
Due Date: 11/9/15
1. One mole of solid Cr2O3 at 2500 K is dissolved in a large volume of liquid ideal solution of Al 2O3 and
Cr2O3 in which XCr2O3 = 0.2 and which is also at 2500 K. Calculate the changes in enthalpy and
entropy ca
Assignment # 1
MS/ME 505
Due Date: 09/23/15
1.
Two moles of an ideal gas, in an initial state P = 5 atm., V = 10 liters, are taken reversibly, in a clockwise
direction around a circular path given by (V-10)2 + (P-10)2 = 25. Calculate the amount of work do
Assignment # 5
MS/ME 505
Due Date: 12/7/15
1. (Note: Saturated vapor pressure over pure liquid Mn at 1863 K is 0.0493 atm)
2.
Free energy change of melting of CaF2 is 31,200-18.45T (J) and that of MgF2 is 58160-37.86T (J).
3.
The entropy of melting of alu
Assignment # 3
1. Pure chromic oxide (Cr2O3) reacts with the stoichiometric amount of pure aluminum, both initially at 25 0C, to
produce aluminum oxide (Al2O3) and pure liquid chromium. If the maximum temperature attained in the crucible
is 19000C, state
Assignment # 2
Due Date: 09/30/15
1. The enthalpy of a real gas is given as a function of the entropy of the gas and the pressure:
2
7
H NAP e
2S
7 NR
NBP NC
where H is the enthalpy of the gas, N is the number of moles of the gas, A,B, and C are
constant
Trig Cheat Sheet
Definition of the Trig Functions
Right triangle definition For this definition we assume that 0 < <
2
or 0 < < 90 .
Unit circle definition For this definition is any angle.
y
( x, y )
hypotenuse opposite
y 1 x
x
adjacent sin = opposite hy
Strain Measurement
Dr. Bridget Smyser
ME 4505 Measurements and Analysis
Fall 2011
Outline for this topic
Review of stress-strain concepts
Piezoresistance
Wheatstone bridges and other necessary circuit
concepts
Temperature compensation
Strain gauge er
Measurement Signal
Transmission
Dr. Bridget Smyser
ME 4505 Measurements and Analysis
Spring 2012
Sit with your lab group!
Overview
Sometimes we need to measure stuff at a
distance
Lots of things put out voltage but
Voltage can get lost in transit
Well
Data Analysis Part 2
Dr. Bridget Smyser
ME 4505 Measurements and Analysis
Fall 2012
Comparing Multiple Data Sets
What if we want to compare 2 distinct
samples, with unequal variances?
Example: MIT students vs. NU students
Get new equations for t and v:
On your way in
Grab a bag of candy
Weigh it on one of the four scales (try to mix it up)
Record the weight and the scale number
Feel free to eat the candy
Data Analysis
Dr. Bridget Smyser
ME 4505 Measurements and Analysis
Spring 2012
A request for thi
M E 4 5 0 6 L A B R E P O RT
TO:
BRIDGETM.SMYSER
FROM: STUDENTO.STUDENTSKI
LABTITLE: LABTITLEHERE
LABDATE: 9/7/2011
DATESUBMITTED:
CC:
9/14/2011
TEACHINGASSISTANT
I N TRO D U C T I O N
Whatwasthepurposeoftheexperiment?Whatweretheprimaryresultsyouwereattem
Wind Tunnel Testing and Air Flow
Measurement
ME4505 Measurements and Analysis
Bridget Smyser
Fall 2012
Overview
Flow over immersed bodies
Lift and drag concepts
Reynolds numbers
Drag coefficients
Instrumentation for pressure measurements
in moving fl
Data Outlier Detection
This one seems off.
Should we discard
it?
Lets say we have these 10 data points:
28 31 27 28 29 24 29 28 18 27
A simple approach: reject anything
outside of 99.8% probability
A more rigorous approach:
Calculate x and Sx using all da
Northeastern University
College of Engineering
Department of Mechanical and Industrial Engineering
Title Here
(This template is augmented with comments, which show up as yellow highlight.
Place mouse over yellow to read text of that comment.
To remove the
ME 4505 Term Project Get out there and measure something!
The goal of this term project is simple: make some real world measurements to solve a problem
or answer a question that has meaning for your group. Your task will be to develop and carry out
an exp
Temperature Measurement
Dr. Bridget Smyser
ME 4505 Measurements and Analysis
Fall2012
Overview for this topic
Material in Chapter 14
Basis for temperature standards
Thermal expansion methods
Thermocouples
Fundamental laws that govern them
Practical use
Rotational Motion Transducers
Dr. Bridget Smyser
ME 4505 Measurements and Analysis
Fall 2012
Displacement measurements
Most mechanical motion is linear or
rotational, or some combination
How far did we slide/rotate?
2 common methods
Potentiometric tra
Pressure Measurements
Dr. Bridget Smyser
ME 4505 Measurements and Analysis
Fall 2012
Goals for this topic
Understand the units of pressure and the
difference between gauge pressure and
absolute pressure
Become familiar with how common pressure
measureme
Torque, Force and Power
Measurement
Dr. Bridget Smyser
ME 4505 Measurements and Analysis
Fall 2012
Quote of the Day:
What are you teaching your students about
tomorrow?
How to measure the power generated with a
bike generator.
Well, duh, you use a volt
Introduction to LabView
Electrical Instruments
Dr. Bridget Smyser
ME 4505 Measurements and Analysis
Fall 2012
Sit with your lab group!
Overview
LabView (Chapters 5 and 6)
Multimeters and oscilloscopes (Chapter 7)
How they work
What we can expect out o
Introduction
Dr. Bridget Smyser
ME 4505
Measurements and
Grab 4 handouts try to find your lab group members and introduce yourself!
Analysis
Fall 2012
Who, What, and Where
Dr. Bridget Smyser Lectures meet:
Responsible for lectures
Office: 334SN, x5142
La
Instrument Characteristics
Dr. Bridget Smyser
ME 4505
Measurements and
Analysis
Where were headed
Types of instruments
Accuracy and Precision
Characteristics of instruments
Common Errors
Why we need to calibrate
What does all this mean?
Highly Accurate,
Flow Measurement
Dr. Bridget Smyser
ME 4505 Measurements and Analysis
Fall 2012
Special Note for Lab 7!
Will take place in 057 RI
There will not be lecture on Wednesday of
that week
Each group gets 1 hour with the Pelton Wheel
You will have goals, you
Displacement, Velocity,
Acceleration, and Load
Dr. Bridget Smyser
ME 4505 Measurements and Analysis
Fall 2012
Overview
A few measurements we havent figured out
yet
Need to know how far and how fast things
move
Robotics, vehicles, machinery all of these
Calibration
Dr. Bridget Smyser
ME 4505
Measurements and
Analysis
Opening discussion form groups of 34
How do you think you would calibrate a
dial type pressure gauge?
How do you think you would calibrate a
thermocouple?
Write your answers down, along wit
NORTHEASTERN UNIVERSITY
DEPARTMENT OF MECHANICAL AND INDUSTRIAL ENGINEERING
ME 4506-MEASUREMENT AND ANALYSIS
Lab 7: Fluid Flow Measurement
1
OBJECTIVES:
The primary goals of this experiment are:
1. To use a flow meter to determine the flow rate and veloci
NORTHEASTERN UNIVERSITY
DEPARTMENT OF MECHANICAL AND INDUSTRIAL ENGINEERING
ME 4506-MEASUREMENT AND ANALYSIS
Lab 6: Determining Drag Coefficients
1
OBJECTIVES:
The primary goals of this experiment are:
1. To choose where to place measurement devices in or
NORTHEASTERN UNIVERSITY
DEPARTMENT OF MECHANICAL AND INDUSTRIAL ENGINEERING
ME 4506-MEASUREMENT AND ANALYSIS
Lab 5: First Order Systems with Varying Input/Heat Transfer
1
OBJECTIVES:
The primary goals of this experiment are:
1. To compare theoretical one-
NORTHEASTERN UNIVERSITY
DEPARTMENT OF MECHANICAL AND INDUSTRIAL ENGINEERING
ME 4506-MEASUREMENT AND ANALYSIS
Lab 4: Mechanical Power Measurement
1
OBJECTIVES:
The primary goals of this experiment are:
1. To develop a power curve for a generator, relating
NORTHEASTERN UNIVERSITY
DEPARTMENT OF MECHANICAL AND INDUSTRIAL ENGINEERING
ME 4506-MEASUREMENT AND ANALYSIS
Lab 3: Strain Measurement
1
OBJECTIVES:
The primary goals of this experiment are:
1. To use strain gauges to measure strain in a simply supported