Wood

In order for Mr Switchgrass to work smoke free everything had to be just right so the Twister Top was added. At this time it has only been tested on wood chips but has proved beneficial. A Youtube Video of the first Mr Switchgrass A Youtube video of the Twister Top Puffergas

Namibia CBEND Gasifier TENDER NOTICE
Desert Research Foundation, Namibia, November 14, 2008

TENDER NOTICE
Tenders are hereby invited from competent, experienced contractors for the supply, delivery and installation, commissioning, complete, of a biomass gasifier system and support ancillaries, internal combustion engine and generator set and supervisory, control and automation systems, in one lot, for the generation of at least 200kW to 300kW electrical power using manually harvested invader bush wood. The contractor will also be responsible for operational skills-transfer and at least one year, full after-sales service and maintenance under a warranty agreement.

Documents available at:
http://www.drfn.org.na/cbend; or from the DRFN Office at 7 Rossini Street, Windhoek, Namibia (during normal office hours); from 15 November 2009.

Tender closes:
15 January 2009 at 12:00 Namibian time (GMT+2:00)

Tender document cost:
No cost

Compulsory inspections / pre-tender meeting:
None

Employer:
CBEND Project (Combating Bush Encroachment for Namibia’s Development)
Tenders are to be completed in accordance to the conditions set out in the documents and must be sealed, endorsed “CBEND/2008/SC002: Supply, delivery and installation, complete, of a biomass gasifier system and support ancillaries, internal combustion engine and generator set”, addressed to CBEND c/o DRFN, No. 7 Rossini Street, Windhoek, Namibia and delivered no later than the date and time set out above.

CBEND does not bind itself to accept the lowest or any tender.
CBEND TENDER

JENSEN CHOPPER
Rolf Uhle, Energies Naturals, October 11, 2008

After realizing what you want is a big , clean chunky chip. But for this I don´t need a screw chipper, my old Jensen disc chopper does it perfectly !

That old boy (50y+)cuts neat 12 cm (3 1/2")bits from up to 15 cm diam. fresh hardwood on 20 hp pto and throws them 3m high n.p. It has only 1 blade and a counterweight, has a greedy mechanical 2 cylinder force feeder and still works perfectly after all these years. I built a simple holder for big bags for it and now it fills them o.k..Even very nasty almond and oak branches are drawn through the knives once the force feeder gets hold of the stem.

Of course it is man-fed and does not pick up from the ground which still limits its output and rentability processing pruning branches and crown wood.

If those screw chippers are too expensive and too delicate, why not try one of these. They are easy to build and very strong.

Rolf

University of Montana Bio-Energy Project: Energy Tech Practicum(5.4 MB ppt)
Brian Kerns, University of Montana, Alternative Energy Research and Development, brian.kerns@umontana.edu August 4, 2008

Biomax 25

Biomass Project
Sponsored by USDA
3 year project, begun 10/2006
Utilizes Community Power Corp.’s BioMax® technology
Custom-built portable trailer
$500,000 for BioMax & trailer
Convert wood residue to
Electricity
Thermal (heat) energy

Project Concept:
Is it economically viable to transport portable distributed energy generators into locations that are producing biomass residues?

BioMax 25
- 25 kilowatts electrical
= 200,000 Btu/h heat
- Elec. & heat energy for 15 avg. MT homes
- 50 lbs/hr wood chips
- 1,750 scf/h prod. gas
- Char/ash production 0.75 lbs/hr
- Soil amendment
- 70% overall efficiency

Fuel Equivalents
1 hr operation = 50 lb wood = 400,000 Btu
= 3.3 gal gasoline
= 8 gal diesel
= 4.5 gal propane
= 2.9 gal crude oil
= 33.3 lbs coal
= 387.9 cubic feet natural gas

BioMax Emissions
Complies w/ CA air stds
Lbs/kWh
NOX 0.00065
CO 0.0000295
VOC 0.000031
PM2-5 0.0003
PM10 0.0000
CO2 7.7260
Hg 0.0000
Pb 0.0000
SO2 <0.0030

See also:
Woody Biomass Lights Up Researchers Capitol Press, 8/22/08

Prototype gasifier turns wood chips into versatile fuel source

Barbara Coyner
For the Capital Press

MISSOULA, Mont. - With a flip of a switch, Brian Kerns can turn wood chips into energy for a car, light at a remote work site, or electricity for the energy grid. . .

For the economics see:
Fuel to Burn: Economics of Converting Forest Thinnings to Energy Using BioMax in Southern Oregon. E. M. (Ted) Bilek, Kenneth E. Skog, Jeremy Fried, Glenn Christensen, USFS General Technical Report FPL-GTR-157

Soymilk production with a TLUD (Top Lit Updraft Gasifier) Gasifier
Nikolaus Foidl, Desarollos Agricolas, Bolivia, May 13, 2008

Sieve Tank Gasifier
Photo1: right side the gasifier/ water boiler, center the water/ soymilk tank and left the rotating separation sieve.

Mobile Gasifier for Truck
Philippe Raufast, November 20, 2007

As you can see here : http://forum.aceboard.net/12980-1246-27054-0-PROCEDE-GENEFAG.htm
It has already being done here in France, after the first oil shock, by the Calberson trucking company .
The gasifier system was called GENEFAG (generateur fuel air gas). As you can see from the schematic it was of standard Imbert type, running on chopped wood.
Starting fan, igniter, air and gas valves were operated electrically from the dashboard, the driver had various gauges to monitor the system.
You can see that the "packaging" was very neat, using the free space between the truck and trailer to install the "box" containing the whole system.
The smaller Saviem SG2 payload area was a bit shortened .
The Renault truck on the first picture was burning 500 l of diesel to cross France from north to south (1000 km) .
With the gasifier fitted, it was using 200 l of diesel and 1000 kg of wood for the same distance, saving 300 l of fossil fuel.
The payload was 25 tons. I hope you will like it ...
Regards, Philippe.
praufast@free.fr

Open Core Re-burn Stratified Downdraft Gasifiers: References
Tom Miles, November 18, 2007
Temperatures and Gas Composition

ARUNA Biomass Gasification S.Adhavan, Aruna Electrical Works (P) Ltd., Tamil Nadu, India November 2007 Aruna Gasifier Engine Genset

We are a fast growing medium scale engineering company catering to the needs of the Power Industries of both thermal and hydro power. We are in the field of Renovation & Modernization of Hydro / Turbo Generators for the past four decades having good clientele support from the nation’s power giants like BHEL, NLC, NTPC, KEB, KPTCL, TNEB, KSEB, APGEN etc.

In addition to this, we are expanding our activities into the bio energy sector by promoting the usage of non conventional energy sources. We are convinced ourselves that this could be the only solution to safeguard our nation’s environment, economy and also face the consequences of the depleting crude oil deposits. To realise this dream and give practical dimensions to our endeavor, we had enter into agreement with a premier R&D Institute for technology transfer to design & fabricate biomass gasifiers. Based on this agreement, we undertake turnkey biomass gasifer projects for power generation and thermal applications.

We are extremely thankful to you for the interest shown in our biomass gasifier based power project. This technology of ‘Future’, finds wide acceptance from small, medium and large industrial sectors by its uniqueness of lowest cost of production, simplicity in operation, absolutely free from air and water pollution.

See attached documents

S. Adhavan
Aruna Electrical Works (P) Ltd.,
Kongampattu - 605 105,
Villupuram District, Tamil Nadu, India
Mobile:91-9443274749

Email: arunabiomass@rediffmail.com

www.arunabiomass.com 

Nexterra Energy Corp. Darcy Quinn, Nexterra, October 26, 2007 JCI

Nexterra (www.nexterra.ca) is a biomass gasification company based in Vancouver Canada. Our first commercial facility at Tolko Industries’ Heffley Creek plywood plant has been operational since May 2006. It produces 38 MMBtu/hr of net usable heat for their veneer dryers and log conditioning vats. Johnson Controls is installing our technology at the University of South Carolina. The system will produce 60,000 lb/hr of high pressure steam and 1.4 MWe of electricity.

Nexterra is also working on its advanced gasification applications. At our product development centre we are finalizing development of our direct firing applications. With direct firing we will be able to fire syngas directly into an existing boiler, or a lime kiln. We are also working with major engine OEMs to fire syngas into reciprocating engines.

 

Darcy Quinn
Sales and Marketing Coordinator
Nexterra Energy Corp.
Tel 604.637.2501 Ext. 115
Fax 604.637.2506
Email dquinn@nexterra.ca
www.nexterra.ca