[Stoves] Gasifier stove grant (and semi-gasifiers)

[Paul Anderson]

Stovers, and Gasifier folks,

Let's give a big round of applause to Colorado State University and also 
to Envirofit for their strong entry into the world of gasifier cookstoves!!!

One million dollars worth of encouragement for a strong entry is 
fantastic.   Congratulations.   Details are at:

http://www.news.colostate.edu/Release/6485

The press release states:
>
> "It [semi-gasifier] separates the combustion process into two phases. 
> In the first phase, combustible gasses are released from solid 
> biomass. In the second phase, those combustible gasses are mixed with 
> air and create a secondary flame," Tryner said.
>
I think that definition is a good one for "gasifiers" and is certainly 
how the term has been used for a decade and more regarding cooking 
stoves.  So I will ask the first question:

Please define the difference between a "semi-gasifier" and a "gasifier" 
in the terminology used by CSU.   (I hope you just drop the "semi-" part.)

The folks at CSU do GREAT work, and I am sure that their entry into this 
aspect of improved cookstoves will result is some great benefits.

Paul

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



-------- Original Message --------
Subject: 	Re: you and Hugh and biochar
Date: 	Tue, 30 Oct 2012 08:23:21 -0600
From: 	John Field <john.l.field at gmail.com>
To: 	Paul Anderson <psanders at ilstu.edu>
CC: 	Hugh McLaughlin <wastemin1 at verizon.net>





However, the general consensus is that only forced-draft gasifier 
cookstoves deliver remarkably low emissions, whereas natural draft 
gasifiers tend to be similar or only marginal better than most rocket 
stove designs.  This is an impression reinforced by my own (very 
limited) work, as well as by the attached recent paper by Abishek Kar of 
the Surya project.  In contrast, the recent paper by Jim Jetter's group 
is more difficult to interpret, and includes a natural draft gasifier 
with better high-performance emissions than all other stoves tested, as 
well as a forced-draft gasifier among the worst performers.  Go figure!





On Mon, Oct 29, 2012 at 5:35 PM, John Field <john.l.field at gmail.com 
<mailto:john.l.field at gmail.com>> wrote:

    Apologies for the lack of communication here- I was away all last
    week at the ASA-SSSA-CSSA conference.  No new stoves/biochar news at
    the moment; I'm totally preoccupied preparing for my prelim exam for
    the next several weeks.

    Hope you well,
    john





    On Mon, Oct 29, 2012 at 5:05 PM, Paul Anderson <psanders at ilstu.edu
    <mailto:psanders at ilstu.edu>> wrote:

        John,

        Sorry that you and Hugh did not meet when he was in Boulder last
        week.

        Are there any more developments involving you and stoves and
        biochar?

        Doc

        -- 
        Paul S. Anderson, PhD  aka "Dr TLUD"
        Email: psanders at ilstu.edu <mailto:psanders at ilstu.edu>   Skype:
        paultlud  Phone: +1-309-452-7072 <tel:%2B1-309-452-7072>
        Website: www.drtlud.com <http://www.drtlud.com>




    -- 
    Thank you,
    John Field
    NSF IGERT Fellow, Multidisciplinary Approaches to Sustainable BioEnergy
    Department of Mechanical Engineering, Colorado State University

    email: john.L.field at colostate.edu <mailto:john.L.field at colostate.edu>
    cell: (317) 748-9792 <tel:%28317%29%20748-9792>
    bioenergy-igert.colostate.edu <http://bioenergy-igert.colostate.edu>
    bioenergyigert.wordpress.com <http://bioenergyigert.wordpress.com>




-- 
Thank you,
John Field
NSF IGERT Fellow, Multidisciplinary Approaches to Sustainable BioEnergy
Department of Mechanical Engineering, Colorado State University

email: john.L.field at colostate.edu <mailto:john.L.field at colostate.edu>
cell:  (317) 748-9792
bioenergy-igert.colostate.edu <http://bioenergy-igert.colostate.edu>
bioenergyigert.wordpress.com <http://bioenergyigert.wordpress.com>




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