Internal Combustion

Latest Developments in the Use of Wood Gas in Gas Engines (pdf)
Thomas Elsenbruch, GE Jenbacher, Jenbach, Austria, IDGTE Toronto, Canada; 12. June 2008

Jenbacher gas engines – Overview 1
A leading manufacturer of gas-fueled
reciprocating engines for power
generation.
• Power range from 0.25MW to 3MW,
4 platforms / 10 products
• Fuel flexibility: Natural gas or a variety of
renewable or alternative gases
(e.g., landfill gas, biogas, coal mine gas)
• Plant configurations: Generator sets,
cogeneration systems, container solutions
• Delivered engines: about 8,000 units / 9,000 MW

Experiences with Wood gasification
•Harboore / Denmark;
Woodgas; H2: 15 - 18%; CO: 25-28%; LHV = 6.8 MJ/Nm³
•Güssing / Austria
Woodgas; H2: 35 - 40%; CO: 20-25%; LHV = 10.5 MJ/Nm³
•Spiez / Switzerland
Woodgas; H2: 12 - 15 %; CO: 18-20%; LHV = 5.4 MJ/Nm³
•Kokemäki / Finnland
Woodgas; H2: 15 - 18%; CO: 18 - 20%; LHV = 6.1 MJ/Nm³
•Skive / Denmark
Woodgas; H2: 15 - 18%; CO: 18 - 20%; LHV = 6.1 MJ/Nm³

Crucial points in the utilization of
wood gas
- Gas cleaning technology
- Fulfillment of emissions
Installed woodgas plants

Summary
wide range of H2 gases can be used in gas engines
key factor is laminar flame speed
main technical barriers:
gas contamination (tar, humidity....)
CO- emissions

The Institute of Gas Turbine and Diesel Engineers (Canadian Branch)
2008 Spring Seminar: Renewable Fuel Utilization
Seminar Presentations

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

Gasification of bamboo for electricity
Government of India, Ministry of Science and Technology, DEPARTMENT OF SCIENCE AND TECHNOLOGY (DST) 2007

NMBA, National Mission on Bamboo Applications http://www.bambootech.org

 

DST/ NMBA has approved the establishment of a 25 Kwe fabricated gasifier with producer gas engine at Namsai, Lohit district.
DST/ NMBA has approved the establishment of a 25 Kwe (35 kg/ hour) gasifier to provide electricity for a residential educational establishment (Central Institute of Himalayan Culture Studies, Dahung) in Arunachal Pradesh.
DST/ NMBA will support, for off-grid and remote villages, a programme of induction of 6 bamboo gasifiers in 2007 (in the 25 Kwe - 75 Kwe range), to provide electricity to villages, or to institutions (residential schools, health sub-centres, small enterprises).

http://dst.gov.in/admin_finance/ls_9/un_sq561.htm

List of Gasifier Manufacturers working in collaboration with NMBA for induction of bamboo based gasifier systems

Listeroids
Rolf, July 22, 2007

PRM Energy Gasification Systems May 2007
Eneria 1 MWe

5 Years of Operating Experience with a 2 MW CHP Plant Based on Wood Gasification in Güissing, Austria (pdf 736 KB)
C Aichernig, Repotec, AT, October 2006

Gasifier and Engine Tables
Kevin Chisholm, October 11, 2006

Attached is a Spread Sheet "Gasifier and Engine Tables" that should answer a number of questions relating to diesel fuel displaced by using wood gas in a dual fueled engine, or the amount of wood required to provide sufficient gas to run a Spark Ignition (SI) engine of any size.

I put this Spread Sheet together, based on fundamental work done by Doug Williams of Fluidyne, www.fluidynenz.250x.com

Enter the engine speed in the colored block, in Table 1, and this gives results for an engine of 1000 cc displacement. In Table 2, the engine displacement can be entered, and this table gives the expected results for an engine of that displacement.

For a given engine size, if you know its petrol consumption now, the Table 2 would tell you how much wood you would require to operate the engine under similar load conditions. I hope you find this helpful

Best wishes,

Kevin