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Jed Lyons PhD
United States
เข้าร่วมเมื่อ 3 ต.ค. 2016
I hope these videos are helpful.
Build a Boiler Project Part 2 (Let's Do The Math)
We build, test and analyze the thermodynamics of a simple boiler.
In the first part, we construct an alcohol burner and use it to boil water in a kettle. We measure the mass and temperature change of the water and also the mass of methanol fuel burned.
In the second part, we calculate the theoretical maximum heat generated in the burner by multiplying the mass of the methanol burned by the theoretical heat of combustion. We calculate the heat stored in the water by multiplying the mass of the water times its temperature change times its specific heat.
The two heat values are not equal. Why? Hints: Water is only part of the system, and it is unlikely that the methanol combustion was stoichiometrically complete.
Part 1 of this project demonstrates data collection:
th-cam.com/video/voSgT53LE0o/w-d-xo.html
In the first part, we construct an alcohol burner and use it to boil water in a kettle. We measure the mass and temperature change of the water and also the mass of methanol fuel burned.
In the second part, we calculate the theoretical maximum heat generated in the burner by multiplying the mass of the methanol burned by the theoretical heat of combustion. We calculate the heat stored in the water by multiplying the mass of the water times its temperature change times its specific heat.
The two heat values are not equal. Why? Hints: Water is only part of the system, and it is unlikely that the methanol combustion was stoichiometrically complete.
Part 1 of this project demonstrates data collection:
th-cam.com/video/voSgT53LE0o/w-d-xo.html
มุมมอง: 64
วีดีโอ
Build a Boiler Project
มุมมอง 119ปีที่แล้ว
We build an alcohol burner to boil water in a pot and collect data mass and temperature data for a basic thermodynamics experiment. The heat used by the system can be estimated by multiplying the mass of the methanol burned by its heating value (related to the heat of combustion). The heat stored in the water can be estimated by multiplying the mass of the water times its temperature change tim...
Save the Cola - One Solution
มุมมอง 149ปีที่แล้ว
Dr. Lyons' first design problem was that his diet cola needed to be 12 horizontal inches from the edge of a table. This video describes a thought process to develop a solution, and a prototype to implement that solution.
Tensile Properties of Metals: Supplemental Lecture
มุมมอง 4273 ปีที่แล้ว
Dr. Lyons gives a supplemental lecture on tensile properties of metals. Topics include tension testing, stress-strain diagrams, yielding, necking and fracture. Also elastic modulus, proportional limit, yield strength, tensile strength, and ductility.
We're All In This Together: A Personal Message From Dr. Lyons
มุมมอง 974 ปีที่แล้ว
Let's use adversity as an opportunity for personal growth.
Creating an Excel Graph with an Acceptable Format for an Engineering Report
มุมมอง 5975 ปีที่แล้ว
The first part of this video discusses the components of an acceptable graph for an engineering report using any piece of software (or paper and pencil for that matter). The second part of the video demonstrates how to trick Excel 2016 Professional into creating these graphs.
Efficiency Analysis of a Bucket Pump
มุมมอง 1847 ปีที่แล้ว
In this video, we analyze the volumetric efficiency and the energy efficiency of a hand-operated bucket pump. The analysis is approximate, yet sufficient for use with experimental data that might be collected in an introduction to engineering course. Please excuse spelling errors-extra credit if you find them!
eWeek Open House 2017 - College of Engineering and Computing @ UofSC
มุมมอง 6687 ปีที่แล้ว
The College of Engineering and Computing at the University of South Carolina opened its doors to the community for an Open House to celebrate National Engineers Week 2017. CEC students, staff, and faculty engaged K-12 students (and a local TV reporter) through fun and educational activities for all.
Lecture on Ductile-to-Brittle Transition
มุมมอง 15K8 ปีที่แล้ว
Some ductile metals become brittle at low temperatures. This lecture discusses that behavior.
Mistaken Assumptions Mislead Beginning Teachers
มุมมอง 498 ปีที่แล้ว
Video from a Center for Teaching Excellence faculty workshop.
Lecture on Static Analysis and Measurements for a Simply Supported Beam
มุมมอง 3588 ปีที่แล้ว
This video includes a lecture and a laboratory demonstration about how to determine the static reaction forces for a simply supported beam.
Engineering Disciplines and Aluminium Cans
มุมมอง 2408 ปีที่แล้ว
Engineering Disciplines and Aluminium Cans
Learning Outcomes Assessment
มุมมอง 1.6K8 ปีที่แล้ว
Video from a Center for Teaching Excellence faculty workshop.
Lecture on Ductility, Toughness, and Hardness
มุมมอง 13K8 ปีที่แล้ว
Lecture on Ductility, Toughness, and Hardness
Lecture on Deformation Mechanisms
มุมมอง 3.5K8 ปีที่แล้ว
A talking hand lecture on elastic and plastic deformation mechanisms in metals. Bond stretching, dislocation slip, slip systems, resolved shear stress, and slip in polycrystals. I love this stuff!
An Introduction to the Static Analysis of an Alpine Tower
มุมมอง 1068 ปีที่แล้ว
An Introduction to the Static Analysis of an Alpine Tower
A Hand Operated Bucket Pump from an Engineering Perspective
มุมมอง 2248 ปีที่แล้ว
A Hand Operated Bucket Pump from an Engineering Perspective
How will you find the value of c ?
You’re a gem sir. Thank you.
Thank you so much for the explanation of the DBTT for a Charpy impact test! This helped me complete a homework assignment where the professor didn't teach it in lecture!
Thank you
Professor Lyons, Thank you for the excellent lectures. I just discovered your channel and watched 3 sessions tonight. Your presentation style is perfect so I gain plenty of knowledge. Keep it up. Thanks again.
@Jed Lyons PhD PE Sir is DBTT seen in Martensite
Ductility 5:25 , Toughness 12:02 , Hardness 13:25
Thanks baby
Maybe I missed it but so is the Ductility a measure between the, Epsilon ε value after sloping down from fracture to x axis, and the Total Epsilon ε value on the x axis of the graph? so εf to ε ?
The total tensile engineering strain to fracture is a common measure of ductility. The amount of elastic recovery is small and I would generally ignore it.
@@jedlyonsphd Thankyou, have you got any papers you have written on this subject I can reference by any chance? Currently Writing a paper for my Composites module of my course
Very simply and clearly explained... 👍
Very helpful thank you 👍🤗🤗
Thank you
Thanks!!!
How did you calculate height of hexagon
@S Niter can u suggest that video..?
What is the difference between a Hexagonal Cylinder and a Hexagonal Prism? They look the same to me.
Thank you Dr. that was very helpful, looking forward to seeing more content from you.
why does pure metals tend to have a definite transition temperature ?
Because they don't contain any impurities (alloys) which alter the transition temperature depending upon their content present in the host metal.
Thk you so much
thank you.
You are a legend Sir!
Thanks 🙏
its really very helpfull.
great video, very good explanation.. thanks
sir can put up a playlist in engineering materials and metallugry....i loved you lectures...it is very informative and not boring compared to other ones...could make it sir??
how did you calculate height of hexagon?
@S Niter uh-
Your explanation is by far the most clearso far.
Ike Ikechi Thanks!
Please post more lectures your format is not "wordy" key points are said. Listening to you is like reading a technical manual, straight to the point. Thank you.
Super helpful! Thank you so much for your great video :)
really it's amezing explain.!!!!
Hi, great video. I am not a student of yours, obviously. I found the video interesting. In particular, could you direct me to a source that discusses your topics on elastic behavior? Specifically, I am interested in learning about the force curves you drew in that section. I find the proportional tie between modulus of elasticity and the forces in that graph interesting. It may help me understand the origin of a standard tensile strength curve. Thank you
finally a video that breaks down hardness testing! thank you for uploading.
can u make the video on iron carbide diagram with examples in real time usage
I will make soon
nice video sir
Thank you for the excellent lesson. With reference to the last 3 minutes...can I assume that the overall slip plane will occur at 45 degrees, regardless of how each individual grain's slip plane is orientated? For instance, if there are a greater majority of grains positioned parallel to the applied force, would the slip plane still occur at 45 degrees? Visually, I picture the atoms on the northern-right (chosen orientation) side being shifted upward, and each southern atom follows behind but staggered down one atom in reference to the horizontal.
If the orientation or the crystal structure in the grains is random, then in some grains slip will occur on planes at greater than 45, and in other grains on plans less than 45. Overall, the average slip path will be at 45 degrees to the tensile axis.