Chemical Engineering December 2011 - 25

AspenTech
Bentley
Simulation Software VendorS
www.aspentech.com
Bryan Engineering
& Research
www.Bentley.com
www.bre.com
Chemstations www.chemstations.com
to-measure values that processors
should know, such as purity coming
out of a distillation column or reactor,
based on data they couldn't otherwise
measure, " says Hill.
The control system will send easyto-measure
values into a process simulation
model, and based on that information,
the model can predict what
is happening in the process. This lets
engineers have control systems that
respond quicker to change and provide
earlier warnings, while making it
easier to optimize energy use.
And, even more benefits can be had
by using simulation to model energy
and utility use. " Quite often users will
model how cooling water or steam are
being used in a facility and find ways
to save money, " says Hill. " We also see a
number of our customers using simulation
to find changes and scenarios they
can rule out as they try to find better
uses of energy or better or less costly
ways to operate their equipment. "
Another value of linking control and
simulation is that it provides training
and a reliable, safe and simple method
for transferring and building knowledge
of plant control and operations.
" If you listen to the people who study
human factors engineering, they will
state that you have to build a mental
model of the process and interaction of
that process with the control system, "
says Berutti. " A good, experienced
operator has a sophisticated mental
model of how everything works, so
when he starts to see an excursion
in how the process is supposed to go,
he, by reflex, knows what needs to be
done to get back on track. "
However, building that type of
mental model can only be developed
by working on the real process with
the real system; so how, when hiring
someone who may not have seen these
conditions on this control system or
process, do you provide him with that
experience and help him build the reflexes
to handle those incidents? How
do you provide the opportunity for him
to develop his own mental model to the
point where he's sophisticated enough
to handle and operate the process
under these conditions? According to
Berutti, by giving him a complete repProcess
Systems
Enterprise
CPFD Software www.cpfd-software.com
Honeywell
Mynah
www.Honeywell.com
www.mynah.com
www.psenterprise.com
lica of the plant and control system,
offline, in a simulated, virtual plant.
" He can develop that necessary mental
model without affecting the real
plant and accelerate his ability to become
more effective when controlling
the process, " says Berutti (Figure 1).
Mynah's MiMiC product makes this
possible because it has a realtime dynamic
simulation engine along with
the separate service environment of
a Microsoft server. The secondary service
is a simulated I/O system that is
designed to read and write to an offline
control system. " MiMiC comes in and
writes to the I/O system of this offline
control system so the control system
now, for all practical purposes, thinks
it has a real working process and I/O
with transmitters, sensors, pumps,
motors, and other equipment in the
field, working together. We have a rich
library of dynamic modeling objects
and functions so users can build unit
operations models quickly, " he says.
" This integration of realtime dynamic
simulation with online control works
together to create a functioning virtual
plant that can be used for training
purposes. It's like a flight simulator
for the process industries. "
Honeywell's Henderson explains
how valuable simulation for training
can be. " Operator training is intended
to prepare the operator for a process or
control issue he's not seen. Simulation
prepares him around competencies
that are required before he enters the
control room of a $2-billion facility by
reproducing the control environment
or operations environment, " he says.
" This allows him to do plant startups,
shutdowns and respond to operations
challenges because failure in simulation
prepares him for his job in the
control room.
" This type of training allows for
faster startups and higher plant reliGet
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ChemiCal engineering www.Che.Com DeCember 2011 25
© SPX 2011
http://www.aspentech.com http://www.cpfd-software.com http://www.Bentley.com http://www.Honeywell.com http://www.mynah.com http://www.bre.com http://www.chemstations.com http://www.psenterprise.com http://www.pneumaticproducts-spx.com http://www.spxft.com http://adlinks.che.com/35072-30 http://www.Che.Com

Chemical Engineering December 2011

Table of Contents for the Digital Edition of Chemical Engineering December 2011

Contents
Chemical Engineering December 2011 - Cover1
Chemical Engineering December 2011 - Cover2
Chemical Engineering December 2011 - Contents
Chemical Engineering December 2011 - 2
Chemical Engineering December 2011 - 3
Chemical Engineering December 2011 - 4
Chemical Engineering December 2011 - 5
Chemical Engineering December 2011 - 6
Chemical Engineering December 2011 - 7
Chemical Engineering December 2011 - 8
Chemical Engineering December 2011 - 9
Chemical Engineering December 2011 - 10
Chemical Engineering December 2011 - 11
Chemical Engineering December 2011 - 12
Chemical Engineering December 2011 - 13
Chemical Engineering December 2011 - 14
Chemical Engineering December 2011 - 15
Chemical Engineering December 2011 - 16
Chemical Engineering December 2011 - 17
Chemical Engineering December 2011 - 18
Chemical Engineering December 2011 - 19
Chemical Engineering December 2011 - 20
Chemical Engineering December 2011 - 21
Chemical Engineering December 2011 - 22
Chemical Engineering December 2011 - 23
Chemical Engineering December 2011 - 24
Chemical Engineering December 2011 - 25
Chemical Engineering December 2011 - 26
Chemical Engineering December 2011 - 27
Chemical Engineering December 2011 - 28
Chemical Engineering December 2011 - 29
Chemical Engineering December 2011 - 30
Chemical Engineering December 2011 - 31
Chemical Engineering December 2011 - 32
Chemical Engineering December 2011 - 33
Chemical Engineering December 2011 - 34
Chemical Engineering December 2011 - 35
Chemical Engineering December 2011 - 36
Chemical Engineering December 2011 - 37
Chemical Engineering December 2011 - 38
Chemical Engineering December 2011 - 39
Chemical Engineering December 2011 - 40
Chemical Engineering December 2011 - 41
Chemical Engineering December 2011 - 42
Chemical Engineering December 2011 - 43
Chemical Engineering December 2011 - 44
Chemical Engineering December 2011 - 45
Chemical Engineering December 2011 - 46
Chemical Engineering December 2011 - 47
Chemical Engineering December 2011 - 48
Chemical Engineering December 2011 - 49
Chemical Engineering December 2011 - 50
Chemical Engineering December 2011 - 51
Chemical Engineering December 2011 - 52
Chemical Engineering December 2011 - 53
Chemical Engineering December 2011 - 54
Chemical Engineering December 2011 - 55
Chemical Engineering December 2011 - 56
Chemical Engineering December 2011 - 57
Chemical Engineering December 2011 - 58
Chemical Engineering December 2011 - 59
Chemical Engineering December 2011 - 60
Chemical Engineering December 2011 - 61
Chemical Engineering December 2011 - 62
Chemical Engineering December 2011 - 63
Chemical Engineering December 2011 - 64
Chemical Engineering December 2011 - Cover3
Chemical Engineering December 2011 - Cover4
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