[Stoves] Green Steam Engine

[Crispin Pemberton-Pigott]

I was actually referring to the pressure one can use without having to have
annual inspections by a certified official.

 

Planning to install a steam engine is no light matter. If annual inspections
are required the operating cost rises dramatically once one goes over a
certain limit.

 

It is likely that in all once-British domains the pressure limit is 4 bars.

 

Regards
Crispin

 

 

From: Stoves [mailto:stoves-bounces at lists.bioenergylists.org] On Behalf Of
Kevin
Sent: Thursday, May 16, 2013 8:48 AM
To: Discussion of biomass cooking stoves
Subject: Re: [Stoves] Green Steam Engine

 

Dear Crispin

----- Original Message ----- 

From: Crispin Pemberton-Pigott <mailto:crispinpigott at gmail.com>  

To: 'Discussion of biomass cooking stoves'
<mailto:stoves at lists.bioenergylists.org>  

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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