[Stoves] Pellets in Uganda was Re: Cuber and size of densifying machines.

[Paul Anderson]

Dear Yibo,         and to Ron and all,

It is great to have direct contact with colleagues in China, especially 
those who can communicate well in English (sorry that most of us have no 
functional abilities in Chinese).

I call your attention to the PhD program at the University of Illinois, 
with attention to Dr. Tami Bond who has some of the best credentials 
anywhere for studies with gasifier stoves.

I am Paul Anderson, PhD., a retired professor from a near-by but 
different university in Illinois, so I have no personal influence about 
acceptance of PhD candidates.  But I would love to work with you, even 
if informally.

Advice:  WHAT your propose to study in your PhD work is extremely 
important.   If it is of sufficient interest to others, the funding of 
your studies is much easier.   If you have financial support from China, 
then your situation is vastly different (and easier) than if you are 
also seeking money.   Please send further information about your 
possible topic(s) and funding options. You can reply privately to me, 
but I believe that sharing your info with others on the Listserv(s) 
would be of benefit to you.

By the way (to Yibo and all), there is considerable interest in the USA 
about *_heating _*with woody biomass/pellets/etc,. including a possible 
special week at Aprovecho this coming summer (probably mid to late 
July). Research about gasifiers (all types) for 
residential/small-business heating could be a highly appropriate 
topic.     (Yibo needs to inform us of his academic 
specialties/trainings/interests.   He could be anything from a chemical 
engineer to a social scientist with experience with TLUD stoves.   ALL 
are welcome and highly needed!!!!!!)

Prof. Anderson

Doc  /  Dr TLUD  /  Prof. Paul S. Anderson, PhD
Email:  psanders at ilstu.edu
Skype: paultlud      Phone: +1-309-452-7072
Website:  www.drtlud.com

On 3/16/2014 10:50 AM, Ronal W. Larson wrote:
> List, cc Yibo
>
> Yibo is a highly skilled TLUD (for cooking not heating) researcher at 
> one of the major Chinese Universities.  He is looking for a PhD track 
> in a US University.  If anyone knows of an interested faculty sponsor, 
> I can recommend Yibo highly as already knowing a lot in this area.  He 
> has spent considerable time already in the US.
>
> All of the following makes sense - and I am sure Yibo would be willing 
> to answer additional questions.
>
> Yibo - Thanks for the quick (not at all delayed) response.
>
> Ron
>
>
> On Mar 16, 2014, at 9:24 AM, Huangfu Yibo <hfyblx at 163.com 
> <mailto:hfyblx at 163.com>> wrote:
>
>>
>>
>> Dear Professor,
>> Sorry for the delay...
>> According to my limited knowledge about the TLUD stove in China, the 
>> evaluation of the performance is something related to at least three 
>> factors, the stove,the fuel and the user behavior. In China, the 
>> factory can produce different size of pellets, 8mm, 15mm and 30mm.
>> My lab have 8mm diameter pellets (the moisture is about 9%) and the 
>> natural draft TLUD stove can achieve CO emission factor 3.53±0.49 
>> g/MJ and PM emission factor 258.15±26.21 mg/MJ with this kind of 
>> fuel. The data can be seen in the MC manuscript. TLUD stoves with fan 
>> can achieve lower emission with proper air control.
>> In term of bigger pellets which is produced for heating stove, I 
>> never tried before with the stove in my lab because I have 
>> not started to test the heating stove yet. But I've seen people using 
>> bigger pellets for heating in Liaoning Province. I measured the 
>> emission from the chimney and most of the average CO concentrations 
>> are between 100-300 ppm (no PM data, unfortunately). The stove they 
>> are using is designed with a fan which is only for the secondary air.
>> I think in the same stove, fuel in smaller size means more gasifying 
>> area and more combustible air or VOCs produced during gasification 
>> per unit time. With the same air provided, larger size fuel seems 
>> burn more slowly than smaller fuel, which may lead to cleaner burning 
>> due to enough secondary air feeding. But I just guess...I have never 
>> tested one stove using fuel with different size and made of the same 
>> biomass.
>> And of course smaller size fuel light more easily than fuel in larger 
>> size if they were made of the same biomass. And good recipe plays 
>> important role in the gasification rate.
>>
>> Best wishes
>> Huangfu Yibo
>>
>> At 2014-03-16 13:20:34,"Ronal W. Larson" <rongretlarson at comcast.net 
>> <mailto:rongretlarson at comcast.net>> wrote:
>>
>>     Yibo:
>>
>>      Any comments on this thread?  You may know more than anyone on
>>     Chinese pellets, large ones, and TLUDs especially.
>>
>>     Ron
>>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.bioenergylists.org/pipermail/stoves_lists.bioenergylists.org/attachments/20140316/d915cd15/attachment.html>