[Digestion] Electrical Generation

[Arturo Ávalos-Longoria]

Alex, both options are feasible. We have to check which one is best.
We can discuss them.
If you want, send me an email to be in contact.

a.avalos at jidoka.com.mx

Arturo Ávalos

2012/7/26 Alexander Eaton <alex at sistemabiobolsa.com>

> Group:
>
> Very close to successfully running milking and refrigeration equipment
> with a biogas powered electrical generator...but yet so far away.  We have
> converted a variety of gasoline engines to biogas without issue, the latest
> being a 8.5 kW Evans that is givings us about 5-6 kW (approximately 24 amps
> @ 240 volts).  The running demand of the entire milking system is about 3.5
> kW, but the starting peak of the motors are 5 times the normal running
> demand.
>
> Problem: The start-up peak on the motors of the milking equipment exceed
> our (feasible) generation capacity, as the jump to 3-5 times the running
> power demand.  We can get the main suction pump (3 HP) to run and start,
> but the tiny (0.5 HP) pump the pulls the milk to the refrigeration unit
> shuts us down every time on start-up.  That pump only is on for very short
> times, but is very necessary for the system (we have considered how to
> eliminate with no luck).
>
> Two options:
>
> 1.  Some sort of capacitor, battery or X device that would allow us to
> "smooth" out the demand spike of the motors as they start.
> 2.  A good way to connect this small generator to the electrical grid so
> that the grid does the "smoothing", maybe not even at the same time.  For
> this option, please focus on the technical, not the bureaucratic issues
> surrounding grid connection.
>
> Thoughts?  What are we not considering?  Options that include product
> suggestions welcome.  Our potential to provide a cost effective biogas use
> for small and medium dairies has a lot of potential, but has been a slow
> starter!
>
> Best,
>
> Alex
>
> --
> Alexander Eaton
> Sistema Biobolsa
> IRRI-Mexico
> RedBioLAC
>
> Mex cel: (55) 11522786
> US cel: 970 275 4505
>
> alex at irrimexico.org
> alex at sistemabiobolsa.com
>
> sistemabiobolsa.com
> www.irrimexico.org
> www.redbiolac.org
>
>
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>


-- 
Arturo
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