[Stoves] SSNB4 T-LUD reported by Kevin

[Kevin Chisholm]

Dear Paul
----- Original Message ----- 
From: <psanders at ilstu.edu>
To: "Kevin Chisholm" <kchisholm at ca.inter.net>
Cc: "Dean Still" <dstill at epud.net>; "'Stoves-List'" 
<stoves at listserv.repp.org>; "'ethos'" <ethos at vrac.iastate.edu>; "'Kirk R. 
Smith'" <krksmith at berkeley.edu>; "'Jeremy Roth'" <Jeremy at aprovecho.net>
Sent: Saturday, July 08, 2006 11:07 AM
Subject: SSNB4 T-LUD reported by Kevin


> Kevin,
>
> Nice report on that "bondfire in a can".

Thanks!! However, it was a bit more than a "bonfire in a can".. more 
properly, it was a "Top Lit Updraft Gasifier, with natural secondary air, 
operated as a Radiant Heating Stove."

BTW, the event was the "BSNB4"

> Impressive 8 foot flame will toast a very big marshmallow!!!

Yes indeed!! However, it did accomplish its intended purpose of bringing 
comfort to about 30 people, warming their Souls, as well as their bodies, 
when the natural bonfire was inadequate. People seemed to prefer the T-LUD 
over the open fire by a ratio of about 5 to 1

>We need experiences like this to test the limits and generate interest.
>
Yes indeed!! Perhaps someone would build one out of a 45 gallon drum. That 
would be impressive also, and moreso.

> I hope you can encourage that stove maker to be in contact either with the
> Stoves Listserve or with individuals (including me) who are interested in
> lessons learned and future steps.  This will become an entry into the 
> history
> of T-LUD gasifiers.

Is this the first 14" T-LUD that develops an 8' flame?
>
> Were some of the spectators surprised at the size of the flame?

Surprised would be an understatement. "Awestruck", "boggled" and "amazed" 
would better capture their feelings.

You took the
> picture from a healthy distance, but those seated within 8 feet of an 8 
> foot
> vertical flame are trusting that the device will not tip over in their
> direction.

I had to take it from a distance to include the T-LUD and the bonfire in the 
field of view. Safety was not an issue, in that the T-LUD was mounted on 
level and solid ground. Additionally, the blast tube was connected with a 
slip fit coupling that would have slipped off the gasifier air inlet, if the 
gasifier tipped over. Lack of the forced updraft air would have resulted in 
the flame diminishing very quickly, and with little to no throw.

Best wishes,

Kevin
>
> With true interest,
>
> Paul
>
> Quoting Kevin Chisholm <kchisholm at ca.inter.net>:
>
>> Dear Paul
>>
>> Judging by the humor implied in the "Kirk Smith Cat Piss Award" title, I 
>> would expect that the rules could be a bit on the loosey goosey side. My 
>> general impression would be that the winning stove should have some 
>> combination of impressiveness and redeeming technical merit that others 
>> could build upon to do good for humanity.
>>
>> Those who have had the opportunity of attending a previous Stove Camp 
>> will, of course, know the flavor of what is appropriate.
>>
>> I have had the opportunity to attend a local event, the BSNB4 on 2 June 
>> 2006, where some impressive technology, at early stages of development, 
>> was presented. One of the presentations,
>> a T-LUD pellet stove, burning a 25 pound bag of wood pellets in 15 
>> minutes, had a few rough edges, but it certainly brings the T-LUD to a 
>> new height. A suitable exhaust hood would, of course, be required for 
>> safe indoor use. See picture. In this photo, it was being used to take 
>> the chill off the night air, when the bonfire proved inadequate. The 
>> Diameter of the T-LUD was about 14" (35.56 CM) and flame height was about 
>> 8' (243.84 CM), suggesting a Flame Length to Stove Diameter ratio of 
>> about 6.85 to 1. With a bit more secondary air, flame length could be 
>> shortened, but this would tend to blue up the flame, and reduce its 
>> radiation characteristics. CO and Particulate emissions, however, would 
>> also be expected to improve. Underfire air was provided through the white 
>> 100 mm blast tube (4" sewer pipe) by a fan system (not shown). In that 
>> this is the work of others, I am not at liberty to provide much further 
>> detail at this time.
>>
>> Later on in the evening, a propane fired Digerydoo was demonstrated for 
>> the entertainment of the Guests. Since this also was the work of others, 
>> at an early stage of development, I cannot release construction and 
>> operating details without permission of the Developer at this time. The 
>> technology employed to change the pitch of the notes was especially 
>> interesting.
>>
>> So, depending on the "rules of the road", and the degree top which the 
>> Voters could over-rule the instruments and the sensibilities of the 
>> Judges, a T-LUD of this nature, with a few improvements, could indeed 
>> have a chance to win the coveted KSCPA.
>>
>> Best wishes,
>>
>> Kevin
>>
>
> ----------------------------------------------------------------
> This message was sent using Illinois State University Webmail.
>
>