Opticlim – HVAC(*) optimization An industry ready solution co-developed with Sanofi * Heating, Ventilation & Air Conditionning

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Opticlim
–
HVAC(*) optimization
An industry ready solution
co-developed with Sanofi
Jean-Pierre Bovee
NRJCut(*) Heating, Ventilation, Air Conditioning

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Jean-Pierre Bovee
NRJCut
HVAC optimization An industry ready solution
Energy spending distribution over pharma industry
sanofi
• Overall : 50% Electricity, 50% Gas
• Motors : amounts to 70 – 80 % of
electrical consumption
• HVAC : 60 – 70 % of energy
consumption
• HVAC main technologies
• heating, cooling, hydraulic
distribution network, fans,
motors, control systems, air
filtration ...
External source
Along with a wide range of
• Critical parameters ( T°C, %HR,
Air Change, Pressure, …)
• Pace of the work
Energy Efficiency improvement and cost savings Opportunities for
Pharmaceutical Industry

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Jean-Pierre Bovee
NRJCut
HVAC optimization An industry ready solution
Room design
:
Extracting fan
Extraction
Fresh Air
Recyclage
Mixing
Supply
Respectively Factors, Control actuators, Setpoints acting on
HVAC
Supply
Automatic control
- Temperature
- Relative Humidity
- Δ Pressure
- Air change rate
Size, tightness -
Insudlation…
Extraction
(*) Heating, Ventilation, Air Climatisation
Cooling Heating Humidification
3
AIR HANDLING UNIT (AHU)
Exactly, what is HVAC? (*) ?
As per regulation or process requirements: supplying an air flow meeting accurate
requirements on Temperature, Relative Humidity, Air change rate, air purity, ...

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OPTICLIM: How and why it happened
From findings to action
Jean-Pierre Bovee
NRJCut
HVAC optimization An industry ready solution
● A wide range of factors drive the consumption of an Air Handling Unit
● Their influence is very diverse
● They powerfully interact as a non-linear system (40 + equations)
● As of the beginning of this decade there was no tool helping figuring out
consumption = f(factors) and potential savings opportunities
● An energy manager was unable to decide how to build a strategy aimed at
cutting the energy bill
● ⇒ URGENT need for a tool

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OPTICLIM: How and why it happened
From findings to action
Jean-Pierre Bovee
NRJCut
HVAC optimization An industry ready solution
● 2011: first draft built with Excel for testing the concept
● 2012: A validation phase, operated on real Air Handling Units
● 2013: A first deployment across a bunch of sites (Sanofi was counting 120 + sites at that
time
○ quickly reaching the limit of such an Excel application (size > 200 Mo)
● 2014: decision to rebuild the application, this time based on Scilab ( Scilab dream team as
main developper)
● 2015: decision to transfer the application to the cloud (thanks again to the Scilab team
decisive support ). Application hosted by ESI.
● 2016: beginning of the worldwide deployment
● 2018: 52 connected sites (out of 73), 92 registred users.
● Decision to extend OPTICLIM utilisation outside Sanofi

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OPTICLIM: A FIRST ASSESSMENT
Dramatically cutting demand
⇒ a guarantee of 2 digits savings
Jean-Pierre Bovee
NRJCut
HVAC optimization An industry ready solution
● All sites found out that 2 digits savings are achievable
● A large majority of them started to modify their Air Handling Units
○ questioning, next changing setpoints whenever more favourable
■ Deadband on temperature and relative humidity
■ Air change rate
■ implementing at ECO mode out of working hours
I’m Bill
● Modifying AHU technology:
○ enhancing temperature and relative humidity control modes
○ improving fluid networks efficiency
○ increasing motors, fans, gearing efficiency
○ as a result cutting investments for new chillers, transformers, boilers, ...
Zero
investment cost
Stepwise
investment costs
with short
paybackt

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OPTICLIM IN REAL
and now, let’s head towards the
Jean-Pierre Bovee
NRJCut
HVAC optimization An industry ready solution
Cloud

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Potential energy savings with OPTICLIM
The example of pharma industry
Jean-Pierre Bovee
NRJCut
HVAC optimization An industry ready solution
● HVAC amounts to about 70% of energy costs
● Energy costs, for sake of emerging global warming threat increased by
oils depletion
● Carbon tax will follow
● Most HVAC equipment presents a 2 digits potential savings, up to 50 %
sometimes
● Most savings measures strengthen current quality standard

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OPTICLIM: Long term perspective
A brilliant future ?
Jean-Pierre Bovee
NRJCut
HVAC optimization An industry ready solution
Air
conditioning
installations
increases…
As global
warming
speeds up...
OPTICLIM
one of the most efficient
tools to break this vicious
circle.

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THANK YOU !!!
Jean-Pierre Bovee
NRJCut
HVAC optimization An industry ready solution