[TRNSYS-users] Load Splitter for supplying power to electrical load and electrolyser for H2 generatoin

[David BRADLEY]

Tilak,
   If the comparisons are simple then you may be able to use equations 
in the input file to determine how much power needs to go to meet the 
load or run the electrolyzer. If they get more complex then there are 
some master controller components available in the Hydrogen Systems 
directory (look first at Type105). Bear in mind that these are quite 
generic controllers. In all of the cases that I have had to deal with, I 
needed to write my own controller model using a Fortran compiler because 
there were some special requirements on the controls (for example what 
do you do if the load cannot be met by PV and the state of charge in the 
hydrogen tank is so low that you cannot run the fuel cell either.

   Also as a side note, keep in mind that electrolyzers have a fairly 
significant standby power requirement. This would be some power that 
they draw when idle so that when excess electricity becomes available, 
the hydrogen produced is pure enough to be useful. There are also 
systems in which the electrolyzer is shut down (instead of allowed to 
idle) but in these cases the hydrogen that they produce while being 
started up is not useful. This is another reason why you might need to 
write your own master controller component.
Kind regards,
  David


On 4/12/2014 17:29, Tilak Sunwar wrote:
> Hi David,
>
> I am currently doing a Miner Thesis project as part of my Master 
> course. I am designing a Solar PV-Thermal and Hydrogen system for heat 
> and power. I am looking for a LOAD SPLITTER which should perform the 
> following
> 1. First compare the PV power and the load demand at that particular hour.
> 2. If the load is less than or equal to PV power generated, than the 
> supply the power to Load only.
> 3. If there is excess power from the PV, supply to electrolizer to 
> generate hydrogen.
> 4. Hydrogen will be utilize when there is no solar radiation.
>
> I would highly appreciate if you could provide me your guidance in the 
> above area mentioned,
>
> Looking forward to your kind response.
>
> Thanks
> Tilak
> -- 
> "Wisdom you don’t get in colleges, schools, universities, nowhere. 
> Where do you get it, the wisdom? You get it through your spirit, which 
> gives you a complete idea as to what is right and what is wrong."
> H.H Shri Mataji Nirmala Devi, August 28,1994, Cabella, Italy
>

-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI  53703 USA

P:+1.608.274.2577
F:+1.608.278.1475
d.bradley at tess-inc.com

http://www.tess-inc.com
http://www.trnsys.com

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