EES Tutorial
ME 414/514 HVAC Systems
1. Download your copy of EES from the class Internet site into a temporary folder on your PC.
Download all three files (ees.dft, EES_manual.pdf, and setup_ees .exe).
a) Double click on setup_ees.exe and follow through on the setup process.
b) The setup wizard guides you. It will ask you where you want to put the files: give it
a path and name, for example, C:\EES-2008
2. To run EES: run the program-i.e. run the file ees.exe
3. You will see some startup stuff, and it will leave you in the middle of an equations window.
4. Let’s start by doing a couple of easy problems.
a) Solving easy simultaneous algebraic equations:
i) click on File: New
ii) type in the following: y^2 + 2*x = 5
x^2 + 5*y = 29
iii) click on Calculate: Check/Format-----the program will check your syntax
and count up your equations and unknowns.
iv) click on Calculate: Solve. The program will solve the problem and let you
know how long it takes, plus the residual error in your numbers. Hit continue
and check your answers.
v) Now take a look at several features:
a) Click on Options: Variable Info a table will pop up with your
variables listed (x and y in this case), as well as the limits on the
variables that it used when it calculated the solution.
b) On the Variable Info table, click on Update. This will update the
guesses on x and y to the answers that were calculated when you ran
the solution. This table is where you can set to use exponential
notation (under the Display section), and also give your variables
units.
Give x and y both units of kg/s, and make them fixed decimal with
three places. You can also print this table from here. Hit OK to close
the table.
