Battery querie - Design & Engineering discussion in Forkliftaction's forums

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Battery querie

I would be very grateful if someone here could help me with a few formulas for a college project. I've tried googling various terms but have being going in circles with many conflicting results.
I need to calculate how much it costs to charge a battery, how much hydrogen is dissipated from it and how much ventilation is required to make is safe? And I have to show how these figures are derived.

Secondly. Is there any way of comparing the pros and cons of using elec over IC powered forklifts with figures?

I appreciate any help on this at all.

Posted 22 Nov 2007 08:11
Modified 22 Nov 2007 08:12 by poster
Discussion started by sean_m
Antrim, United Kingdom

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Sean
The volume of hydrogen produced by a lead acid battery =

No of cells x rated ampere hour capacity x 35
Divided by 1000000

The safe limit for hydrogen is below 1%. so the volume of the room containing the battery and charger is required to work out the safe number of batteries per room.

As for the cost, this will vary as to how dischagred the battery is but as a guide the current draw will be on the side of a particular unit x length of charge, 8 or 12 hours.

Posted 23 Nov 2007 06:08
Modified 23 Nov 2007 08:07 by poster
Reply by AndyPandy
Staffordshire, WM, United Kingdom

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Hello,
Check this out its in italian but you can use it to compare cost electrical versus combustion forklifts

http://www.carer.it/bench/bench_it.pdf

Posted 22 Nov 2007 20:31
Reply by roberto_s
ZUID HOLLAND, Netherlands

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