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Comparison 
 Patented Multiple-Cell
 Electrolyser Spirflame®
  
 Single-Cell Electrolyser
  
 Electric Energy
 Consumption

 Low


  
 High. For the same gas volume the
 energy consumption of a single-cell
 design is about 3-times more than
 the patented Spirflame®
   

 Number of
 Electroysis Cells
  
 11, 22, 55 or over 100 cells. This
 depends on the requested maximal
 gas rate of the specific Spirflame®
 model. Each indivial cell can
 produce maximal 10 liter gas per
 hour.
 1 "pot" cell
   

 Electrolyis Current


 Electrolysis
 Voltage


  
 15 Amp DC maximal.


 Each cell between 1.8 to 2,2 V DC
 total cell stack dc voltage is
 number of cells multiplied by
 single cell dc voltage.


 165 Amp DC to produce 100 liter of
 gas per hour.

 Cell needs betwenn 3 to 7 V DC to
 "squeeze" the very high dc current
 level through the electrolyte fluid!
   

 Heat Losses
 Low, because there is only a small
 maximal 15 ampere dc current.


 Very high, because of the very high
 dc current needed.
 A 10-fold increase in dc current
 means  a 10 x 10 = 100-fold
 increase in heat losses.
 Losses increase to the power of 2
 (square) with the current intensity.

   

 Energy Efficiency
 High, becaus of low heat losses.
 Low, because of high heat losses.
   

 Gas Rate Potential
 500 liter/hour per generator
 module or higher without need for
 water cooling
 Around 70 liter/hour maximal gas
 rate are a realistic limit for non-
 continuous operated single-cell
 generators.
   

 Continuous
 Operation
 100% duty industrial full power
 operation was the design target
 and is met by the patented
 principle.
 Permanent operation at full power
 output causes electrolyte to start
 boiling, contaminate the gas with
 caustic pottash aerosols and high
 water vapour content.
   

 Operation
 Temperature of
 Electrolyte Fluid		  
 Safe level of +45 °C as demanded
 by the German Industry Norm
 (DIN) 32508 is not exceeded.
 Will pass without extra artificial
 water cooling the critical temperature
 level of 45 °C within approx 30
 minutes.
   

 Quality of Gas 		 
 Clean mixture of hydrogen and
 oxygen with minimal
 contaminations
 removable for automated micro-
 flame applications by special
 disposable gas filters.
 Corrosive electrolyte aerosols (fog)
 and humidity present in gas. Can be
 filtered-off, but consumption of filters
 costly.
   

 Flame
 Flash-Back Filters
 The clean gas does not influence
 such protective devices, eg
 stainless steel mesh filters.
 Pores of filter cartridges tend to soon
 clog.
   

 Overpressure
 Safety Protection


 Various sequenced electronic and
 electric excess pressure safety
 guards would shut-off the ac
 energy supply in a worst case
 condition to the system
 permanently and would need a
 manual re-set.


 Various grades of safety protections
 also advisable but the sensors might
 be influenced by the corrosive fogs.
   

 Other Safety
 Protections

 The housing base is designed as a
 fluid sump to trap spills of corrosive
 fluid in the extreme rare case of a
 leak.
  
 No such leak protection known.
   

 Materials
 All parts are made in high quality
 stainless steel design to avoid any
 risk of chemical attacks.
 Stainless steel also used.

      
 
 
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