State University of New York at Buffalo

            Mechanical and Aerospace Engineering

mae 439/539 Heating, Ventilating and Air Conditioning

 

Course Website:  http://www.eng.buffalo.edu/Courses/mae539

 

Spring 2012

Time and Location:

    M, W, F, 12:00 – 12:50   216 Natural Science Center

 

Instructor:

James Wulf

325 Jarvis Hall

645-2593 ext 2318 

e-mail: jbwulf@roadrunner.com

Office hours:  9:30-12:00  Monday and  Friday.  10:30-12:00

 and 1:00-2:00 Wednesday.  By appointment at any time.

 

Homework Corrector:

Aron Nichols

e-mail:  aln4@buffalo.edu

 

Text Book: 

   Fay C. McQuinston, Jerold D. Parker and Jeffery D. Spitler, “Heating, Ventilating and Air Conditioning, Analysis and Design”,  6th  Edition, John Wiley and Sons

 

Units

   The course will be taught in both SI and English units.

 

Course Procedures

 

1.  All exams are open book. Closed notes, closed homework.

2.  There will be two exams and a final.  There will be 5 unannounced quizzes.  Quiz questions will closely follow homework problems or parts of homework problems.  The worst 2 quiz grades will be discarded. 

3.  To receive graduate credit graduate students and required to complete an extra project in addition to the course work. Graduate students are expected to submit a written project proposal by February 3 and a completed project 2 weeks before the final. Possible projects could be detailed consideration of an item of air conditioning process equipment; simulation of an air-conditioned structure, detailed design of an air condition system analysis of unique air conditioning systems or a topic of special interest.

4.  Course notes will be posted on the course web site on Friday.

5.  Homework is due on Monday in class or my office by 1:00 pm. Homework will not be accepted after this time.  Homework will be graded and solutions will be posted on the class web site after the homework is due.

 

 

 

Grading

                                             Undergraduate          Graduate

Homework                                  10%                      10%

Quizzes                                       10%                      10%

Design  Project                            20%                      15%                         

2 Exams                                      20% each              15 % each

Final                                           20%                      15%                     

Graduate Project                                                       20%

 

 

A    90

A-    85

B+  80

B    75

B-     70

C+  65

          C    60

C-     55

D+  50

          D    45

 

 

 

Course Outline:

 

Introduction and Air Conditioning Systems  

                                                Chapter 1 and 2   

 

Conditioned Air Properties  

     Psychometric properties        Chapter  3

     Psychometric processes

     Combined  processes

     Space design conditions         Chapter 4

 

Building Load Sources

     Heat transfer modes       

     Convection heat loads          Chapter  5

     Solar hear gains                    Chapter  6

         Structures

         Windows

 

Building Loads

     Cooling loads                        Chapter 8

             Heat Balance Method

             Radiant Time Series

      Energy usage

             Degree Day Method

             Bin Method

 

Refrigeration

     Vapor compression cycles    Chapter 15

          Positive Displacement Compressors

                    Centrifugal Compressors

      Absorption cycles

      Cooling towers

  

Distribution(Collection) Systems

     Fans and air systems            Chapter 12

     Pumps and liquid systems    Chapter 10

 

 

Integrity Policy:

 

  There is nothing more dishonorable for an engineer, short of his work causing loss of life or property, than to present the work of another as his own.  This can happen in patent applications, reports, presentations, and technical papers.  Dishonesty in course work is the start of this slippery slope that ends in news stories such as we have seen reported last year or worse.  Pressure may be felt in school however it is more difficult, not easier, to maintain integrity in practice. 

 

    Presenting course or project work of another as your own will result in a reduction in grade usually to F.

 

 

mae  439 HVAC

GRADUATE REPORT TOPIC SUGGESTIONS

 

Critical state of the art  review. Feasibility or economic evaluation of a concept or idea.  Improvement proposal with supporting calculations.

 

Model a building from plans and specifications.

Aircraft HVAC

Clear sky Solar radiation model

Mass transfer

Heat Balance Method (DOE Energy Plus)

Coils

CYCLES

  Supercritical carbon dioxide

  Helium refrigerators

  Water chiller with water working fluid

  Gas liquefaction

  Food freezing

  Air cycle refrigeration

  Vapor compression cycle improvements

Radiant Time Series

Simulation Methods

Coolarado Cooler

Absorption refrigeration

Ground based heat pumps

Air based heat pumps

Shell and Tube evaporators and condensers

Unsteady wall and window conduction

Scroll compressors

Centrifugal refrigeration compressors

Cooling towers – mass transfer

Energy conservation methods

VENTILATION

  ASHRAE, AIAA Standards

  Hospital Ventilation

  Room air distribution and diffusers