Transcript Diapositive 1

Eco 8,
Practical intelligence
Energy saving simulator with Altivar
Eco 8 estimates your energy savings in
pumps & fans applications
 By adding a speed drive in your installation
instead of electromechanical flow control
 Taking into account all datas of your
installation
 As the energy efficiency for fan or pump
systems depends on the control method used, a
speed drive is especially efficient when the
system is running with partial flow.
Schneider Electric - M&D – Hieulle Sylvain – 2008/07/21
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Eco 8 main benefits
● The tool provides financial figures for assessing the profitability of
purchasing ALTIVAR
● Simulate the possible savings on your installations
● adding a variable speed drive instead of electromechanical devices
● Select the suitable Altivar product according to :
● The mechanical and electrical datas
● The duty cycle of your installation
● Calculate how long it takes to get a return on your investment
● Estimate how much reactive energy you could save
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ECO 8 is not a contractual tool
● The accuracy of the results is affected by the accuracy of the inputs
datas.
● Results should be used only for estimating purposes.
● The results of this calculation program must not be used as the basis
for guaranteed energy savings.
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Customise your Eco 8 tool
● Select :
File,
then
Customise
● Select :
Your language
Your currency
The price of
energy
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Eco 8 allows you to describe your project
Define the project
characteristics
Select the
application
Define the electrical
characteristics
Define the air flow
or water flow
cycle time
Get the final
results and ROI
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Step 1 : Define the project characteristics
Fill all the boxes
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Step 2 : Select the application
● Choose you market :
That will propose the right drive selection (ATV21 or ATV61)
● Select
fan or pumping
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Step 2 : Some advices on pump datas
● With vane control, make the right choice
according to your installation :
● HMT : Pump head at 0 flow
● Z : Total dynamic head = static head + friction
head of installation
● For transfert pump : Z ~ 0 (no static head)
● For high elevation, the ratio is closed to 0,85
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Step 3 : define the electrical characteristics
●
Choose the product
protection :
IP20 or IP54
●
Select the voltage
●
Select the motor power
●
Current, cos phi,
efficiency, price of
electricity are filled
automatically
(could be adjusted)
●
Select the price of total
project
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Step 3 : Some advices on installation price
● You have to give a price evaluation to your customer, but …………..
you don’t know the price of installation !
● One of the method could be :
– Use the list price of the IP54 solution
– This price could represent the drive + installation cost
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Step 4 : define the operating time
●
Select the operating time
reference
●
Fill the right cells
for each flow rate
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Step 4 : Some advices on cycle time
● All the final results are strongly linked to the cycle time, but sometimes,
the customer doesn’t know the real cycle time !
● This software can give you only an estimation of the savings, that’s to
say, to decide if it’s interesting to invest……
● So, if you don’t know the cycle, you can propose 2 simulations :
- One optimistic
- One pessimistic
● This is a simple way to limit the investigations
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Step 5 : get the results
● Show the differences of
energy consumption :
with or without speeddrive
● Show reactive energy you
could save with speeddrive
- avoid the use of capacitors
bank
- reduce your energy
penalties
● Give the time of return on
investment
(payback period, 1-2 years
is acceptable)
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Step 5 : Print your results
● To be integrated in the commercial
proposal (Word file)
● To keep a record on your proposal
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