May 20, 1994

HEATBAL.EXE (for 386 w/coprocessor, or HEATBALX.EXE for 8088 w/no 
coprocessor) is an interactive simulator model of the Boston 
Edison Pilgrim Nuclear Station seconday steam plant located on 
Massachusetts Bay in Plymouth, Mass.  It is based on actual 
secondary plant design parameters. Run the program and view the 
help files for more information.  The source code for HEATBAL is 
included for the curious.  

A known bug occurs when changing variables too far out of the 
normal parameter range.  It's not worth fixing the algorithms, 
just try a alt-c to reset the parameters, otherwise restart the 
program.  Of course if you are running multiple DOS sessions under 
OS/2 like you ought to be, it will be no problem.  Second best 
would be multitasking under Novell DOS 7, or at least taskswapping 
under DR DOS 6.  There will be no excuses boys and girls.

BECIRC3.EXE (for 386 w/coprocessor or BECIRC3X.EXE for 8088 w/no 
coprocessor) is included to demonstrate the same program, but as a 
non-interactive model.  No documentation is included for it.  A 
few of the default parameters are in brackets when the program is 
run.

Any serious questions about modifying the program for another 
plant can be directed to me.

Michael Krabach
747 Nate Whipple Hwy
Cumberland, RI 02864
401-333-5350
Internet: mkrabach@ids.net