Re: [TRNSYS-users] fuel cell, electrolyzer, H2 tank problem

[David BRADLEY <d.bradley@tess-inc.com>]

Mohammad,
  The pipe models in TRNSYS (Types31 and 604) assess the thermal losses of a fluid of constant specific heat as it flows through the pipe. Since the temperature of the H2 coming from the electrolyzer is unknown, it is not really going to be possible to assess the thermal losses. Furthermore, the thermal losses from the H2 as it flows from the electrolyzer to the storage tank may not be very relevant to your study anyway. So in short, yes, your proposed connections are correct.
Kind regards,
 David

On 4/10/2014 03:58, mohammad sadigh behzadi wrote:

hi everyone

i was going to implement a controller for controlling a hybrid pv/fc system but unfortunately when i try to write it's program i face with a mechanical issue.
i have a 400w elevtrolyzer with outlet H2 flow rate of 0.006 m^3/hr and its output pipe Cross section (cm^2) is unknown and it;s operating H2 presure is 10 bar
a 2kw fuel cell with inlet H2 flow rate of 3.4 m^3/hr that it's input pipe cross section area (cm^2) is unknow either and it;s operating H2 presure is 10bar 

and a 10kg H2 tank that holds H2 till 10 bar pressure
should i directly link : 1-outlet flow rate of electrolyzer to inlet H2 input of H2 tank         ???
                                    2-inlet flow rate of fuel cell to outlet H2 input of H2 tank

that's my question

sincerely yours

 mohammad behzadi

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