EET112: Fundamentals of Fluid Power & Alternative Energy
North Seattle Community College Spring 2014
Clark Wood, instructor

email: clark.wood@gmail.com
this page: http://clark.cementhorizon.com/EET112-fluid-power
page revised: 2014-06-22

28 May Presentations

Well done!


Extra Lab Time

Open lab sessions on: To make up for missed labs, to repeat confusing labs, and to set up experiments on your own.


Lab Guide available for download:

LabVolt Hydraulics Lab Student Guide

These pages from the Student Guide were handed out in class and may be useful: symbols&conversions.pdf


Lab & Lab Simulator

We will be using a new training setup in the Lab this quarter, and there is a free downloadable simulator you may find useful.
You are encouraged to download and install this software. (Windows only, but it looks like everyone has access to a Windows computer.)

https://www.labvolt.com/solutions/3_fluid_power/98-6385-00_hydraulics_simulation_software_lvsim_hyd
and download LVSIM ®-HYD 1.40.00, toward the bottom of the page.

note: Some installations of this software run with full function, but other installations will not display values on any measurement elements
(e.g. Pressure Gauge, Tachometer, Flow Meter)
Hopefully we can figure out what causes this problem. Take notes of your environment.

Examples of LabVolt trainer in action at Columbia Gorge Community College:
Voltage Across Switches
Electrically Controlled Electrically Sequenced Hydraulic Circuit Example
Instructor Jim Pytel's YouTube channel:https://www.youtube.com/user/bigbadtech

ALSO available for download:

Hydraulics & Pneumatics Magazine website provides an excellent e-book called Fluid Power Basics
This page provides a huge list of fluid power schematic symbols.


The National Fluid Power Association (NFPA) Hydraulics trainer CD that we have been watching in class. also available: Companion book for the video course (172 page PDF)

One caution:
If you get this message when you start to run the program:

you need to change the size of your swapfile, also called your virtual memory.
This NFPA program is so old that the message actually MEANS:
you must have a swapfile with a size of 3 or greater. That can be 3MB, 300MB, 3GB, etc. But the leading "2" in a 2GB swapfile is less than the "3" this program is looking for.

Textbook

Fluid Power Basics by Parker Hannifin; isbn 978-1-55769-029-6; 2013
The current version has a date (on the back, near the bar code) of 02/13. Older versions will be fine, if you can find one.

Class Schedule

week 1
Monday 2014-04-07:
Lecture - Introduction, student questionnaire

Wednesday 2014-04-09:
Lab - Introduction, exploration
Lecture - demo of LabVolt simulator, math review
homework - ISO8601, establish communication

week 2
Monday 2014-04-14:
Lab - exploration
Lecture - Homework review
Chapters 1 & 2; World of Machines & Force Transmission

Wednesday 2014-04-16:
Lab - exploration
Lecture - Chapter 3, Energy Transmission through Hydraulics, Pumps
homework - submit answers to exercises 1 & 2

week 3
Monday 2014-04-21:
Lab - Exercise 1-2 Demonstration of Hydraulic Power; Lab Guide page 1-27 to 1-37 lab answers
Lecture - Homework review
Chapter 4, Control of Hydraulic Energy; Valves

Wednesday 2014-04-23:
Lab - Exercise 2-1 Pressure Limitation; Lab Guide page 2-3 to 2-16 lab answers
Lecture - Discussion of Lab-Volt simulator
Chapter 5, Energy Transmission through Pneumatic Systems
Chapter 6, Control of pneumatic energy
homework - submit answers to exercises 3 & 4 & F=PA handout

week 4
Monday 2014-04-28:
Lab - Pressure & Force; Lab Guide pages 2-17 to 2-34 lab answers
Lecture - Homework review,
Chapter 7, Hydraulic Pumps & Pneumatic Compressors

Wednesday 2014-04-30:
Lab - Flow Rate & Velocity; Lab Guide pages 2-35 to 2-56 lab answers
Lecture - Chapter 8, Check Valves, Cylinders & Motors
homework - submit answers to exercises 5 & 6 & 7

week 5
Monday 2014-05-05:
Lab - Cylinder Control; Lab Guide pages 3-3 to 3-18 lab answers
Lecture - Homework review,
Chapter 9, Flow Control Valves

Wednesday 2014-05-07:
Lab - Cylinders in Series; Lab Guide pages 3-19 to 3-29 lab answers
Lecture - Chapter 10, Directional Control Valves
new F=PA practice handout (corrected)
homework - submit answers to exercises 8 & 9 & 10

Saturday, 2014-05-10; Open Lab, 9:00 a.m. to 2:00 p.m.

week 6
Monday 2014-05-12:
Lab - Cylinders in Parallel; Lab Guide pages 3-31 to 3-39 lab answers
Lecture - Homework review,
Selection of Presentation topics.
Chapter 11, Simple Pressure Control Valves

Wednesday 2014-05-14:
Lab - Regenerative Circuits; Lab Guide pages 3-41 to 3-52 lab answers
Lecture - Chapter 12, Pilot Operated Pressure Control Valves
homework - submit answers to exercise 11

week 7
Monday 2014-05-19:
Instructor absent; prepare Presentation project

Wednesday 2014-05-21:
Instructor absent; prepare Presentation project

week 8
Monday 2014-05-26:
Memorial Day Holiday

Wednesday 2014-05-28:
Presentations, begin 5:00 p.m. for everyone

Thursday, 2014-05-29; Open Lab, 6:00 to 9:00 p.m.

Saturday, 2014-05-31; Open Lab, 9:00 a.m. to 2:00 p.m.

week 9
Monday 2014-06-02:
Lab - Accumulators; Lab Guide pages 4-3 to 4-18 lab answers
Lecture - Homework review (exercise 11),
Chapters 13 & 14, Hydraulic Fluid Conditioning & Air Preparation

Wednesday 2014-06-04:
Lab - Hydraulic Motor Circuits; Lab Guide pages 4-19 to 4-33 lab answers
Lecture - Chapters 15 & 16, Fluid Conductors & Connectors, Fluid Power Systems
homework - submit answers to exercises 13 & 14 & 15

week 10
Monday 2014-06-09:
Lab - Pressure Reducing Valves; Lab Guide pages 4-35 to 4-51 lab answers
Lecture - Homework review (exercises 13 & 14 & 15),
Introduction to Photovoltaic Energy

Wednesday 2014-06-11:
Lab - demo: Electrical/Electronic Control of Fluid Power Systems
Lecture - Photovoltaic Systems and review of quarter

week 11
Monday 2014-06-16, 6:00 p.m.:
Last Day of Class;
NO Lab
Lecture - review of quarter

Wednesday 2014-06-18, 6:00 p.m.:
Final Exam

* you are here *




Grading

21% Homework (7 homeworks)
14% Lab attendance & participation (14 lab sessions AFTER week one)
20% 28 May Project Presentation
40% final exam
5% TBD

28 May Project

After selecting a topic on Monday 2014-05-12, you will have two weeks to prepare a 3 minute presentation to the class.

The goal of this project is for the student to do research and become an expert in a subject, then share what you have learned with the rest of us.

The key to this project is to research the subject and then 'boil it down' and decide what the rest of need to know about the subject.

Handout. You will be expected to prepare a 2-page (both sides of a single sheet) handout, to be kept by the rest of us as a 'cheat sheet' of what we need to know. If you want me to print it, send this document to me by Tuesday 27 May, or bring 50 copies of the handout with you.

Handout format. The handout needs to include your name and the date and 'where to find out more', which will be the references that were the most valuable to you.

Pictures may accompany your presentation (bring them as .jpg or .pdf files on a thumb drive), but three minutes is not enough time to read a PowerPoint presentation. You may use notes, objects, websites, but practice and streamline your presentation to get it across in 3 minutes.

Questions. A good presentation would be expected to raise questions in the audience and you may address those if you wish. The Q&A time will be in addition to your 3 minutes.

Teams. You may team up with one other person, in which case the presentation can be 5 minutes long, but it will be expected to be outstanding!

We will discuss details of the project as the time gets closer to make your choice of subject.

This project is worth 20% of your class grade.

handout from class 02:

Homework

For more information about ISO 8601, see https://xkcd.com/1179

This week's homework, due by 23:59 (11:59 p.m.) 2014-04-13

Please answer these three questions:
  1. Do you have your textbook?
  2. Did you download the Lab Simulator?
  3. Did you install the Lab Simulator?
Please note: although I would LIKE all three answers to be "yes", let me know if you had difficulty and we'll get it to work.

Dimensional Analysis

This really matters. If you're not already comfortable with it, here are a few places to learn more:

http://www.alysion.org/dimensional/fun.htm is the best introduction I found.
http://www.chem.tamu.edu/class/fyp/mathrev/mr-da.html is the screen-grab I passed out on Monday.
As always, Wikipedia is your friend. http://en.wikipedia.org/wiki/Units_conversion_by_factor-label is pretty clear.

handout from class 01:

Course Description:

Prereqs:

Sections:

College Dates:

Course Outcomes/Learning Objectives:

  1. To provide the student with a basic understanding of the fundamentals of fluid power systems.
  2. To familiarize the student with some of the components used in fluid power systems.
  3. To provide the student with a basic understanding of the fundamentals of photovoltaic systems.
  4. To familiarize the student with some of the components used in photovoltaic systems.
  5. Students completing the course will be able to:
    1. State the important basic practices and safety rules related to working with fluid power systems.
    2. State the applications, advantages and disadvantages of fluid power systems.
    3. List the six basic components of an hydraulic system and/or a pneumatic system, read hydraulic and/or pneumatic schematics, and build an hydraulic and/or pneumatic system given a schematic.
    4. State the important basic practices and safety rules related to working with photovoltaic systems.
    5. State the applications, advantages and disadvantages of photovoltaic systems.
    6. List and describe some of the basic components of a photovoltaic system.

Topical Outline and/or Major Divisions:

  1. Introduction to Course.
  2. Fluid Power
    1. Principles of Fluid Power
    2. Directional Control Components
    3. Pressure and Flow Control Components
    4. Fluid Power Pumps
    5. Fluid Power Actuators
    6. Hydraulic Circuits
    7. Pneumatic Circuits
    8. Fluid Power Accessories
    9. Hydraulic Fluid Conditioning and Air Preparation
    10. Electrical/Electronic Control of Fluid Power Systems
    11. Electro-hydraulic Servo-systems
  3. Photovoltaic Systems
    1. An Overview of Photovoltaic Technology
    2. Photovoltaic Electric Principles
    3. Solar Radiation Fundamentals
    4. Electric Load Analysis
    5. Photovoltaic Modules
    6. Batteries
    7. PV Controllers
    8. Inverters
    9. Photovoltaic System Wiring
    10. System Installation, Maintenance, Troubleshooting and Safety

Class Ground Rules: