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Keeping A Constant Pressure


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#1 A.Kangaris

A.Kangaris

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Posted 06 August 2018 - 03:43 PM

Hello,

 

I am working on an agriculture scale biodigester (Pressure=25 mbarg) which I would like to use a constant flow of biogas to power a heater. However, as biogas is used up, the pressure inside the biodigester decreases which results in the flow rate of biogas to decrease too.

Does anyone know any simple method to automatically keep the pressure supplied to a burner from biodigester constant? My biodigester is made of plastic like material and expands or contracts depending on the pressure.

 

Are there pressure regulators for very low inlet pressures (25mbar)?

 

PFD: http://docdro.id/HkVK6xW


Edited by Kangari, 14 August 2018 - 04:43 PM.


#2 A.Kangaris

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Posted 14 August 2018 - 04:44 PM

PFD attached. 



#3 Bobby Strain

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Posted 16 August 2018 - 09:03 AM

Research gasholder.

 

Bobby



#4 A.Kangaris

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Posted 16 August 2018 - 11:25 AM

I have already considered that. The problem is that the size of it needs to be extremely big which is not viable for a farm.



#5 breizh

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Posted 16 August 2018 - 10:00 PM

Hi ,

 

Consider your favorite search engine to support your query , key words : floating gas holder biodigester .

 

http://www.susana.or...iogasplants.pdf

 

good luck

 

Breizh


Edited by breizh, 16 August 2018 - 10:01 PM.





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