NEW MEXICO JUNIOR COLLEGE

MISSION STATEMENT

Mechanical Science

SYLLABUS

  1. GENERAL COURSE INFORMATION
  2. A. Course Title: Mechanical Science
    B. Course Number: ENGT 223B - 30555
    C. Semester: Fall 2017
    D. Days/Time: Online
    E. Credit Hours: 3
    F. Instructor: Yarger, Fred
    G. Office: none
    H. Email Address: fyarger@nmjc.edu
    I. Office Phone: none
    J. Office Hours: Virtual Monday: 8:00:00 AM-8:00:00 PM (MST);
    Virtual Tuesday: 8:00:00 AM-8:00:00 PM (MST);
    Virtual Wednesday: 8:00:00 AM-8:00:00 PM (MST);
    Virtual Thursday: 8:00:00 AM-8:00:00 PM (MST);
    Virtual Friday: 8:00:00 AM-8:00:00 PM (MST);
    Virtual Saturday: 8:00:00 AM-8:00:00 PM (MST);
    (770) 973-3369 (H) Between 8AM to 8PM (Mountain Time); Anytime in an emergency.
    K. Time Zone: Mountain Time
    L. Prerequisite(s):
    M. Corequisite(s):
    N. Class Location: Virtual
  3. COURSE DESCRIPTION

    3 Credit Hours This course presents the basics of mechanical components, diesel engines, heat exchangers, pumps, and valves. Students will have the opportunity to understand the construction and operation of mechanical components associated with various energy industry facility and equipment operations and maintenance.

  4. COURSE RATIONALE / TRANSFERABILITY

    This course will meet the requirements of the Energy Technology Degree at New Mexico Junior College; however, it is important to check with the institution to which you are planning to transfer to determine transferability. All students are encouraged to keep the course syllabus, as it will help determine the transferability of this course credit to another institution.

  5. REQUIRED / SUGGESTED COURSE MATERIALS

    Required:

    DOE HANDBOOK Mechanical Science Volume 1 of 2 (provided by instructor)
    DOE HANDBOOK Mechanical Science Volume 2 or 2 (provided by instructor)
    DOE HANDBOOK 1084-95Primer On Lead-Acid Storage Batteries (provided by instructor)

    Using LockDown Browser and a Webcam for Online Exams

    This course requires the use of LockDown Browser and a webcam for online exams. The webcam can be built into your computer or can be the type that plugs in with a USB cable. Watch this video (http://www.respondus.com/products/lockdown-browser/student-movie.shtml) to get a basic understanding of LockDown Browser and the webcam feature.

    You will be required to pay a one-time fee to use the webcam feature of Respondus Lockdown Browser. Once paid, you will be able to use the webcam for the remainder of the course. If you are on scholarship, this fee should be paid from your scholarship funds.

    You must download and install LockDown Browser from this link:

    https://nmjc.instructure.com/courses/1273417/modules/items/13487969

    Note: Don't download a copy of LockDown Browser from elsewhere on the Internet; those versions won't work at our institution.

    To take an online test, start LockDown Browser and navigate to the exam. (You won't be able to access the exam with a standard web browser.) For additional details on using LockDown Browser, review this Student Quick Start Guide (http://www.respondus.com/products/lockdown-browser/guides.shtml#student).

    Finally, when taking an online exam, follow these guidelines:
    • Ensure you're in a location where you won't be interrupted
    • Turn off all mobile devices, phones, etc.
    • Clear your desk of all external materials — books, papers, other computers, or devices
    • Remain at your desk or workstation for the duration of the test
    • If a webcam is required, make sure it is plugged in or enabled before starting LockDown Browser
    • LockDown Browser will prevent you from accessing other websites or applications; you will be unable to exit the test until all questions are completed and submitted
    • If a webcam is required, you will be recorded during the test to ensure you're using only permitted resources

    Suggested:

    Harbrace Essentials with Resources Writing in Disciplines 2nd Edition by Cheryl Glenn & Loretta Gray (ISBN-10: 1285451813). This resource has been adopted by New Mexico Junior College as the common reference book for students to use for writing assignments in their courses. This book is available at the NMJC bookstore.

    NOTE: Generally no books are available at the NMJC book store for the Energy Technology degree. If a text is required a link will be provided in the course syllabus. When DOE Handbooks or Modules are required they will be provided in the course.

    You can buy your books online at the NMJC Bookstore.

  6. GRADING POLICY

    This course is graded on a point system with the final grade based on a percentage of the total points of all exams/quizzes and written assignments. Students attending New Mexico Junior College are evaluated according to the following grading scale:

    90 - 100% = A
    80 - 89% = B
    70 - 79% = C
    60 - 69% = D
    0 - 59% = F

    Response Time Frames:
    The instructor will respond to student e-mail within 24 hours on week days and 48 hours on weekends.
    Grades for written assignments will generally be posted within a week of the due date if due mid-term or the day before final grades are submitted for end-of-term assignments.

    Retrieving Grades from T-BirdWeb Portal
    Go to the New Mexico Junior College T-BirdWeb Portal login page. Please enter your User Identification Number (ID), which is your Banner ID, and your Personal Identification Number (PIN). When finished, click Login.

    Tips for Success in Online Courses:
    1. Log in to class regularly.
    2. Pay attention.
    3. Take notes.
    4. Keep up with readings and assignments.
    5. Ask questions when you do not understand something.
    6. Utilize your professor’s office hours and e-mail.
    7. Read the text.
    8. Adhere to the deadlines posted in the course outline.

  7. INSTITUTIONAL STUDENT LEARNING OUTCOMES

    New Mexico Junior College’s institutional student learning outcomes represent the knowledge and abilities developed by students attending New Mexico Junior College. Upon completion students should achieve the following learning outcomes along with specific curriculum outcomes for respective areas of study:

  8. DEPARTMENTAL STUDENT LEARNING OUTCOMES

    The objective of this course is to help students understand the basics and applications of mechanical components used in the energy industry.

  9. SPECIFIC COURSE STUDENT LEARNING OUTCOMES

    By the end of this course, students should understand the basics of:

    1. FUNDAMENTALS OF THE DIESEL CYCLE
    2. DIESEL ENGINE SPEED, FUEL CONTROLS, AND PROTECTION
    3. TYPES OF HEAT EXCHANGERS
    4. HEAT EXCHANGER APPLICATIONS
    5. CENTRIFUGAL PUMPS
    6. CENTRIFUGAL PUMP OPERATION
    7. POSITIVE DISPLACEMENT PUMPS
    8. VALVE FUNCTIONS AND BASIC PARTS
    9. TYPES OF VALVES
    10. VALVE ACTUATORS
    11. AIR COMPRESSORS
    12. HYDRAULICS
    13. BOILERS
    14. COOLING TOWERS
    15. DEMINERALIZERS
    16. PRESSURIZERS
    17. STEAM TRAPS
    18. FILTERS AND STRAINERS
    19. BATTERY COMPONENTS AND OPERATION
    20. LEAD-ACID BATTERY TYPES
    21. BATTERY APPLICATIONS
    22. BATTERY SIZING AND SELECTION
    23. BATTERY MAINTENANCE
    24. BATTERY STORAGE, TRANSPORTATION, AND DISPOSAL

  10. REQUIRED TECHNICAL COMPETENCIES AND EQUIPMENT

    Student Requirements
    If you have not already received login information for Canvas/T-BirdWeb Portal/E-mail, you will need to contact the Enrollment Management office at (575) 492-2546.

    Check first-time login page for instructions at www.nmjc.edu/distancelearning/coursescourseschedules/canvasinstructions.aspx.

    Canvas Assistance

    You must have access, on a regular basis, to a computer that supports the Canvas minimum specifications and has an active connection to the Internet. See the minimum computer specification requirements at www.nmjc.edu/distancelearning/coursescourseschedules/Canvasinstructions.aspx.

  11. GENERAL/MISCELLANEOUS

    Students will be held responsible for the information on these pages.

    Academic Honesty
    Each student is expected to maintain the highest standards of honesty and integrity in online academic and professional matters. The College reserves the right to take disciplinary action, up to and including dismissal, against any student who is found guilty of academic dishonesty or otherwise fails to meet these standards. Academic dishonesty includes, but is not limited to, dishonesty in quizzes, tests, or assignments; claiming credit for work not done or done by others; and nondisclosure or misrepresentation in filling out applications or other College records. Cheating or gaining illegal information for any type of graded work is considered dishonest and will be dealt with accordingly.

    Americans with Disabilities Act (ADA) Information
    Any student requiring special accommodations should contact the Special Needs Student Services Coordinator at (575) 492-2576 or by e-mail at krueda@nmjc.edu.

    Attendance Policy and Participation Expectations
    It is expected that you regularly log into class at least three times weekly and check your Canvas mail to ensure you have not missed any changes/updates. Students are expected to complete discussions/quizzes/tests/ assignments before deadlines expire.

    Canvas Help
    If you experience difficulty with Canvas you may reach the Canvas Helpdesk at canvashelpdesk@nmjc.edu, or by calling the 24 hour helpdesk phone at (575) 399-2199.

    Netiquette
    The professor is responsible for monitoring and evaluating student conduct and student behavior within the Canvas course. By registering for this class, the student is assumed to have entered into an agreement with New Mexico Junior College and the professor to log into the class regularly and to behave in an appropriate manner at all times. Disruptive behavior may result in the student being removed from the class and dropped for the semester. For comprehensive information on the common rules of netiquette and other online issues, please review the NMJC Online Student Handbook.

    Online Learning Environment
    By participating in an online class, you undertake responsibility for your own progress and time management.

    Plagiarism
    Offering the work of another as one’s own, without proper acknowledgment, is plagiarism; therefore, any student who fails to give credit for quotations or essentially identical expression of material taken from books, encyclopedias, magazines and other reference works, or from the themes, reports, or other writings of a fellow student, is guilty of plagiarism. Plagiarism violates the academic honesty policy and is considered cheating.

    Tutoring Assistance
    Free tutoring services are available to all NMJC students through Brainfuse and the Academic Success Center located in Mansur Hall room 123 and 124.

    Withdrawal Policy
    The instructor has the right to drop any student who has failed to log on to Canvas for two weeks or more, but it is not guaranteed that the instructor will drop you. If the student chooses to stop attending a class, he/she should withdraw from the class by accessing your student account in the T-Bird Web Portal at www.nmjc.edu, or submitting the required paperwork to the Registrar’s Office by 5:00 p.m. on Friday, September 29, 2017. Failure to withdraw yourself from a course by this date may result in your receiving an “F” in the course. All students are encouraged to discuss their class status with the professor prior to withdrawing from the class.

  12. ACADEMIC CALENDAR
  13. FINALS SCHEDULE
  14. COURSE OUTLINE

    DIESEL ENGINES
    Terminal Objective: Without references, DESCRIBE the components and theory of operation for a diesel engine.

    Introduction
    History
    Diesel Engines
    Major Components of a Diesel Engine
    Diesel Engine Support Systems
    Exhaust System
    Operational Terminology

    FUNDAMENTALS OF THE DIESEL CYCLE

    The Basic Diesel Cycles
    The Four-Stoke Cycle
    The Two-Stroke Cycle

    DIESEL ENGINE SPEED, FUEL CONTROLS, AND PROTECTION

    Engine Control
    Fuel Injectors
    Governor
    Operation of a Governor
    Starting Circuits
    Engine Protection

    HEAT EXCHANGERS
    Terminal Objective: Without references, DESCRIBE the purpose, construction, and principles of operation for each major type of heat exchanger: parallel flow, counter flow, and cross flow.

    TYPES OF HEAT EXCHANGERS

    Introduction
    Types of Heat Exchanger Construction
    Types of Heat Exchangers
    Comparison of the Types of Heat Exchangers
    Summary

    HEAT EXCHANGER APPLICATIONS

    Introduction
    Pre-heater
    Radiator
    Air Conditioner Evaporator and Condenser
    Large Steam System Condensers
    Summary

    PUMPS
    Terminal Objective: Without references, DESCRIBE the purpose, construction, and principles of operation for centrifugal pumps.

    CENTRIFUGAL PUMPS

    Introduction
    Diffuser
    Impeller Classification
    Centrifugal Pump Classification by Flow
    Multi-Stage Centrifugal Pumps
    Centrifugal Pump Components
    Summary

    CENTRIFUGAL PUMP OPERATION

    Introduction
    Cavitation
    Net Positive Suction Head
    Preventing Cavitation
    Centrifugal Pump Characteristic Curves
    Centrifugal Pump Protection
    Gas Binding
    Priming Centrifugal Pumps
    Summary

    POSITIVE DISPLACEMENT PUMPS

    Introduction
    Principle of Operation
    Reciprocating Pumps
    Rotary Pumps
    Diaphragm Pumps
    Positive Displacement Pump Characteristic Curves
    Positive Displacement Pump Protection
    Summary

    VALVES
    Terminal Objective: Without references, DESCRIBE the construction and operation of a given type of valve, valve component, or valve actuator, as presented in this module.

    VALVE FUNCTIONS AND BASIC PARTS

    Valve Body
    Valve Bonnet
    Valve Trim
    Valve Actuator
    Valve Packing
    Introduction to the Types of Valves

    TYPES OF VALVES

    Gate Valves
    Gate Valve Disk Design
    Gate Valve Stem Design
    Gate Valve Seat Design
    Globe Valves
    Globe Valve Body Designs
    Globe Valve Disks
    Globe Valve Disk and Stem Connections
    Globe Valve Seats
    Globe Valve Direction of Flow
    Ball Valves
    Ball Valve Stem Design
    Ball Valve Bonnet Design
    Ball Valve Position
    Plug Valves
    Plug Ports
    Multiport Plug Valves
    Plug Valve Disks
    Lubricated Plug Valve Design
    Non-lubricated Plugs
    Manually Operated Plug Valve Installation
    Plug Valve Glands
    Diaphragm Valves
    Diaphragm Construction
    Diaphragm Valve Stem Assemblies
    Diaphragm Valve Bonnet Assemblies
    Reducing Valves
    Pinch Valves
    Pinch Valve Bodies
    Butterfly Valves
    Butterfly Valve Seat Construction
    Butterfly Valve Body Construction
    Butterfly Valve Disk and Stem Assemblies
    Needle Valves
    Needle Valve Applications
    Needle Valve Body Designs
    Check Valves
    Swing Check Valves
    Tilting Disk Check Valves
    Lift Check Valves
    Piston Check Valves
    Butterfly Check Valves
    Stop Check Valves
    Relief and Safety Valves
    Pilot-Operated Relief Valves

    VALVE ACTUATORS

    Manual, Fixed, and Hammer Actuators
    Electric Motor Actuators
    Pneumatic Actuators
    Hydraulic Actuators
    Self-Actuated Valves
    Solenoid Actuated Valves
    Speed of Power Actuators
    Valve Position Indication

    MISCELLANEOUS MECHANICAL COMPONENTS
    Terminal Objective: Without references, DESCRIBE the purpose, construction, and operation of miscellaneous
    mechanical components.

    AIR COMPRESSORS

    Introduction
    Reciprocating Compressors
    Rotary Compressors
    Centrifugal Compressors
    Compressor Coolers
    Hazards of Compressed Air

    HYDRAULICS

    Introduction
    Pressure and Force
    Hydraulic Operation
    Hazards

    BOILERS

    Introduction
    Boilers
    Fuel Boiler Components

    COOLING TOWERS

    Purpose
    Induced Draft Cooling Towers
    Forced Draft Cooling Towers
    Natural Convection Cooling Towers

    DEMINERALIZERS

    Purpose of Demineralizers
    Demineralizers
    Single-Bed Demineralizers
    Single-Bed Regeneration
    Mixed-Bed Demineralizer
    Mixed-Bed Regeneration
    External Regeneration

    PRESSURIZERS

    Introduction
    General Description
    Dynamic Pressurizers
    Construction
    Operation

    STEAM TRAPS

    General Operation
    Ball Float Steam Trap
    Bucket Steam Trap
    Thermostatic Steam Traps
    Bellows-Type Steam Trap
    Impulse Steam Trap
    Orifice-Type Steam Trap

    FILTERS AND STRAINERS

    Introduction
    Cartridge Filters
    Precoat Filters
    Backwashing Precoat Filters
    Deep-Bed Filters
    Metal-Edge Filters
    Strainers
    Backwashing

    BATTERIES
    Terminal Objective: Upon completion of this section the student should be able to do the following:

    • Identify the differences between primary and secondary batteries.
    • Identify the major types of lead-acid storage batteries.
    • Define the following terms: cell, battery, electrolyte, separator, terminal, electrode, thermal runaway, gassing.
    • Identify the active materials in the lead-acid cell.
    • Describe the effects of temperature and discharge rate on battery capacity and life.
    • Identify industry and government standards for maintenance, testing, replacement, sizing, and installation of lead-acid batteries.
    • Identify the three most common applications of lead-acid batteries.
    • Identify and describe four charging techniques.
    • Identify safety precautions for operating and maintaining lead-acid batteries.
    • Identify federal regulations governing lead-acid battery disposal.
    • Identify the two basic types of "maintenance-free" batteries.
    • Describe the effect that overcharging has on gassing and thermal runaway.


    Types of batteries
    How batteries operate
    Maintenance and safety
    Battery failure modes