1 Citius, Fortius, Altius: A New Sampling/Sensor Initiative (NeSSI) Rob Dubois & Peter van Vuuren.
Rob Dubois CPAC Workshop, Seattle, WA, May 11, 2006
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Transcript of Rob Dubois CPAC Workshop, Seattle, WA, May 11, 2006
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Is the breakthrough in smart sampling
technology at hand? An update of progress & missing links on the road to NeSSI Gen II
Rob Dubois
CPAC Workshop, Seattle, WA, May 11, 2006
“the best way to predict the future is to create it”
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Presentation Outline
• The Roadmap and Generations• Progress and missing links• Example of an enabler• How do get the WOW factor• Summary and questions
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NeSSI™ Roadmap
Gen III
Gen II
Gen I
Fluid Components
Electrical Networked & Smart
uAnalytical
END USER VALUE
2008-20122004-08
2000-04
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JEB Stuart
Were we circling Washington?
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Progress on 7 elements of Gen II
• (1) Smart transducers• (2) Programmable heated substrate base• (3) Combi valve• (4) Multi-Drop IS serial bus• (5) temp. controlled microClimate
enclosure• (6) Sensor Actuator Manager (SAM)• (7) PDA – graphical user interface
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(1) Progress: Transducers
• Flow– Thermal – cons: current
load, wiring complexity, robustness?
– DP with orifice – cons: pressure drop, size, cost?
– Rotameter switch/tx cons: cost and size
– need new technologies• Pressure & Temperature• Analytical (early stages)• Objective:
– single block, multi-drop– combine transmit and
local indication into one package
Courtesy of FCI
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Flow Devices - Today
Courtesy of Dow Chemical
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What’s different about this analytical system?
Courtesy of Dow Chemical
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Pressure and Flow by Differential Pressure/Orifice
Courtesy of UOP
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(2) Progress - Smart Heaters
• Approved for ATEX/CSA Zone 1
• First identified in 2003 now deployed in several locations
• Missing link is the connectivity to smart devices or stand-alone Courtesy of Intertec
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Smart Heaters – the value
• Increase Reliability– early detection of heater failure (prevent freezing and
condensation/2-phase systems)– networking allows remote monitoring and setpoint change
• Technology Enabler– precision temp. controls supports the use of microanalytical
on a substrate – enables ramping and zoning– in combination with a precise flow meter allows use of
permeation calibration devices eliminating gas cylinders• Enhanced Capabilities
– higher temperature operation by controlling heater surface below the T-zone temp. - an alternative to air bath systems
• Cost Savings– conduction heat is more efficient than air heating– allows smaller package by compact hotplate design
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Smart heaters in action(…also good size comparison)
All pictures courtesy of Dow Chemical
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(3) Combi-Valve Proposed
• Modulating & On-Off Valves – challenges
• size• power budget• cost• networking• technology to
make modulating is tough
– Proportional Valve is missing link
A
Air Actuator
Inst
Air
ValveVent
Vent
Comm.
D/ASolenoid
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Simple On-Off Valve Driver
• Current solution– on/off solenoid
manifolds– needs “safe” area
for installation– various buses Courtesy of SMC
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(4) Progress: Multi-Drop Intrinsically Safe Bus
• The inability to align to a standard has prevented us from moving ahead– component makers “in limbo”
• Good Features: plug and play, IS, low cost, low power, small, small range, std. connector
• Is this still the missing link?
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(5) Enclosure Progress: Clamshell Design – Flexible
Connections
Courtesy of ExxonMobil
Still a needfor convectionheating….
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(6/7) SAM and the PDA
• Concentrates sensor/actuator signals – without this capability we will be
doomed to dumb systems– running signals from each sensor &
actuator to a facilities DCS system is not cost effective
– handheld PDA useful for local monitoring & simple control
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VP
A
F Sensor/Actuator
Manager (SAM)
NeSSI™-bus (e.g. IS-CiA)
Fluid Handling System
r-SAM
(PC) dcs
SmartAnalyzer
Heater
Ethernet
by supplier
I. smart
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VP
A
F Sensor/Actuator
Manager (SAM)
NeSSI™-bus (e.g. IS-CiA)
Fluid Handling System
r-SAM
(PC)dcs
Simple & legacyAnalyzer
Heater
Ethernet
4-20 mA
discrete
by supplier
Sol Vlv
II. simple
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VP
A
F Sensor/Actuator
Manager (SAM)
NeSSI™-bus (e.g. IS-CiA)
Fluid Handling System
r-SAM (PC)
dcs
Heater
Ethernet
microAnalyzer
Sol. Vlv
by supplier
III. micro
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Oh, the humanity…legacy wiring
Modular system with intrinsically safe discrete wiring – Dow Chemical (hydrogen service)
NeSSI-box wiring analogue and digital wiring – Dow Chemical
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Enabler: Small flows allow wider use of catalytic sample disposal systems
• cost savings enabled by by-line analysis and low volume modular systems– eliminate vents
• environmental protection– a temperature sensor can
monitor catalyst depletion or heater failure and alarm that unit is failing
• performance enhancement– atmospheric reference
with no environmental impact – no analyzer backpressure issues
TRACErase is Courtesy of
MerTech
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How do I achieve the WOW factor?
• Function Intensification• Reduce weight and space• Easily reconfigurable• Simplify the design and spec process
– one stop shopping, integration and check-out• Plug and Play communication• Minimize certification issues• Sensor/Actuator signal concentration/control loops• SMART (automated) – but configurable and easy (fun?)
to use for the analyzer technician (e.g. intuitive menu structure and graphics)
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Who will climb Mount Fuji?
What do we need to do to fill the missing links?