home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Explore the World of Soft…e: Engineering & Science
/
Explore_the_World_of_Software_Engineering_and_Science_HRS_Software_1998.iso
/
programs
/
pwrplant
/
mupit250.exe
/
MUPIT.DOC
< prev
next >
Wrap
Text File
|
1988-12-14
|
4KB
|
75 lines
.ft e
.sp 1
.in 10
.de
Gentle User,
MUPIT is a multi-unit, multi-cooling tower, system model for a power plant.
It is all interactive. I don't have time to document anything. You can try
it and see how it works. If you like it, use it. If you don't, well you're
not out anything.
MUPIT is more complicated than it seems. It is not a Mickey Mouse handbook
rule-of-thumb program. The methods employed are too complicated to explain in
a paragraph or two.
The heatrate is determined from a parametric study of many nuclear and fossil
units. The condensers are solved using the Heat Exchange Institute Standards
Method (of which I am not much of a fan, but at least it is familiar to most
engineers). The cooling towers are solved using the Cooling Tower Institute
Recommended Method (with a few modifications because I'm not too much of a fan
of this either).
The accuracy of the model depends on the accuracy of the approximations and
the accuracy of the data you put in. I do not make any claims as to the
absolute accuracy of the model; but I can say this much about the relative
accuracy... MUPIT is far more detailed and much more accurate that anything
that I am aware has been used to perform whole-plant analyses.
MUPIT does not get down to the level of turbine stages, pumps, piping,
extractions, etc. In order to perform that level of detailed analysis it is
necessary to use something like SYNTHA, PEPSI, THERM, or my steam cycle model
that I think is superior to all three, SCRAP.
Several people have asked me what condenser heatrate is - that's what MUPIT
wants and lists in the way of heatrate. Condenser heatrate = (the heat output
to the condenser in Btu/hr + (the generator output in KW * 3412.14))/(the
generator output in KW). It is somewhere between what is usually called the
turbine heatrate and the net plant heatrate. It is necessary to use this
because there are so many different definitions of heatrate which contain
extraneous or inappropriate parameters. For instance, the practice of
including the power output of the boiler feedpump turbines with the generator
output is ludicrous! People who do this probably believe that the power
required to drive the water and oil pumps on an automobile engine help to get
you down the quarter mile faster - they're just trying to make their product
seem better than it really is.
To run MUPIT, just enter "MUPIT" without the quotes and hit RETURN (or ENTER)
and answer the questions. I have supplied several plants as examples. I
suggest you start out with one of these first as follows:
select "1" (read description of plant from file)
enter "BFN.MUP" (a 3-unit, 6-tower nuke plant)
select "7" (change/list operations & solve for response)
select "6" (solve for response)
To get back to the main menu just hit RETURN (or ENTER) a few times.
If you want to spool the printer output to a file use:
MUPIT MYSPOOL.OUT
The file, MYSPOOL.OUT (or whatever), must not already exist to avoid
unintentional overwriting.
You will need a math coprocessor or be prepared to wait quite a long time!
REMEMBER: I accept no liability for the use of this program, a supplement to,
not a substitute for good judgment.
Dudley J. Benton
TVA Engineering Lab
P.O. Drawer E
Norris, TN 37828
(615) 632-188