Heat Flow, and Heat Engines
Monday’s Class: We study the Flow of Heat
Before Class
- Continue documenting your self intervention. Did you forget? I did… I started again Saturday morning. But all is going well Saturday evening. I’m accumulating a considerable box of refuge.
- The course grader made the first video inspection Thursday morning. So, if you added the course late or for some other reason, did not watch videos until Thursday morning, you still received full credit.
- Heat Flow: Please see this video (Heat Flow ) and follow with the slides (Heat Flow Slides)
- Finish problem set #1 (on main class website). See PS#2 posted on main class website.
- Check through PS #2 (on main class website).
- See the video of Calculating power of one student
- How about the power of one super athlete?
- Please see this video about Scaling
- NPR: After years of steady decline, US carbon emissions are up again.
During Class
After Class
Wednesday’s Class
Office hours have been switched Wednesday to 2:00 PM
Before Class
- Solutions for BE#1 and PS#1 are posted on main class website.
- Continue 1st Self Intervention: Don’t Throw Anything Away for a week. Please collect and keep your refuse: garbage, recyclables, what’s left from takeout food, compost (you can separate the compost). After one week, please categorize everything as to where it will ideally go: compost, batteries and lightbulbs, plastic bags (go to super market special recycling), recyclable, and landfill. Take a picture and upload it to your computer. You can post it along with your narrative of what the process was like for you at the self intervention website (link on main class website).
- Problem Set #2 is posted on main class website. Due Monday in class.
- Heat Engines Video and Slides
- Smarter Every Day Internal Combustion Engines amazing slow motion coverage of a transparent ICE (internal combustion engine).
- See this video of Jet Engines for Rocket Scientists.
- please check out the website: Animated Engines that relates to the problem set due Monday. Check out the different cycles. Make sure that you can slow the cycles way way way way down (slider bar underneath the animation), so that you can identify where the compression is (where work is put into the fluid) and where it expands (does work for us). Why do we get more work out than we put in?
During Class
- Check out Heat Engines
- Pick Projects
- Feedback
After Class:
Friday’s Class: Combustion and Efficiency
Before Class
- Self Intervention. Please Email me your self intervention document as soon as you have finished your week:
- A picture of your garbage for the week separated into separate categories outlining what is the best you can do with each category.
- A brief narrative of your experience.
- What is your takeaway? What did you learn?
- Let me know if you don’t want your name on it.
- Solutions for BE#1 and PS#1 are posted on main class website.
- Hans Rosling: Poverty Statistics video
- Combustion with Slides (from Heat Engines Video)
- There used to be large concentrations of lead in the atmosphere because it was an additive to gasoline. Please take a look at this article in the BBC connecting lead in fuel (and subsequently in air) with violent crime rates – Make Sure you look at and consider the graph. Note that the x-axis is split with the violent crimes (red) coming 23 years later than the lead concentrations (blue). Why do we care about this now? Well, please have a look at this contemporary article. Should the present administration relax mercury emissions regulations as well as carbon emissions regulations for coal burning facilities.
- Note that it is “command and control” regulations from the government that ended leaded gasoline use. These are the kinds of regulations that Trump talks of ending because it encumbers business. Please read how NPR reports on the EPA is a victim of its own success.
- California is considering outlawing gasoline garden equipment. Please read the article on NPR. Note the last two sentences: They bring up environmental justice, and finances.
During Class
- Big Exam! #2
After Class
Friday’s Activity: Heat Engines and Personal Power
Before our activity, please see this video about how I calculated my power output, and remember the two videos you saw for Wednesday about calculating power output.
See how Heat Engines Work,
Calculate your personal Power.
Work on your group project.