Jock et al
1. Answering Michael first - if no char, I wouldn’t call it a TLUD. But I
think there will be.
2. To Jock. 40 lbs for five hours says they aren’t interested in cooking.
Which is OK if you want a campfire with char output. This looks somewhat like
what Kelpie says she likes - based on the Japanese approach to char-making.
Forget about the lost energy.
If they got 10 pounds of char out, then the 30 pounds (about 13.5 kilos)
of wood at 15 MJ/kilo gave up about 200 MJoules. or 40 MJ/hour or about 11 kW.
The solar concentrator discussed recently on this list by Dr. Seifert is
probably less than about 1 kW - and that boils rapidly.
3. I am not being critical. There may be a market here - but not for the
majority of this list’s customers. Nice looking flame, but I’d rather see the
secondary air holes a little bit lower to get some draft. And then some
control on primary air. They could probably get 15 hours without much
different a look.
Ron
On Jan 14, 2014, at 1:19 PM, Michael Wittman <[email protected]> wrote:
> Do you end up with any char after the burn is over?
>
> Thanks, Michael Wittman
>
> On Jan 14, 2014, at 11:47 AM, Jonathan P Gill wrote:
>
>> Friends,
>>
>> Talk about your basic TLUD design, this is one for sure. 5 hours on 40 lbs
>> of wood pellets?
>>
>> http://www.northerntool.com/shop/tools/product_200609534_200609534?cm_mmc=Google-pla-_-Outdoors-_-Firepits%20%2B%20Patio%20Heaters-_-15624&ci_src=17588969&ci_sku=15624&gclid=CNO2-Ly9-7sCFa9lOgod1B8AdA
>>
>> Cheers,
>>
>> Jock
>>
>>
>> Jock Gill
>> P.O. Box 3
>> Peacham, VT 05862
>>
>>
>>
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