[Stoves] Green Steam Engine

[Kevin]

Dear Crispin
  ----- Original Message ----- 
  From: Crispin Pemberton-Pigott 
  To: 'Discussion of biomass cooking stoves' 
  Sent: Wednesday, May 15, 2013 9:23 PM
  Subject: Re: [Stoves] Green Steam Engine


  It is often the case that a steam boiler is allowed to operate if the pressure does not rise above 4 bars.



  # Yes indeed. In some cases, it is allowable to go to about 100 psig, (114.5 psia = 7.9 bar), depending on the volume of water in the boiler, and on the boiler design.  Small water tube boilers could be approved for such higher pressures. Again, it depends on the rules for the particular location.



  Best wishes,



  Kevin

   

  Regards

  Crispin

   

  From: Stoves [mailto:stoves-bounces at lists.bioenergylists.org] On Behalf Of Kevin
  Sent: Thursday, May 16, 2013 4:58 AM
  To: Discussion of biomass cooking stoves
  Subject: Re: [Stoves] Green Steam Engine

   

  Dear Bryce

   

  Certainly a "Closed Loop" or "condensing system" is more efficient than an non-condensing system. 

   

  While the steam engine may not require Certification, boilers do, depending on the rules in a given Jurisdiction. While it is certainly possible to operate a steam boiler "in a back woods location that the Boiler Inspector doesn't know about", The Boiler Inspector will find out if there is an accident where someone is seriously injured or killed. 

   

  Steam can kill.

   

  If anyone is considering a "Steam Application" they should check with their Boiler Inspector, to confirm that he would be able to approve the Proposed Project.

   

  Best wishes,

   

  Kevin



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