Specifications from the Gasification Discussion List

DRAFT SPECIFICATIONS From the Renewable Energy Policy Project (REPP) Gasification Discussion List

I. PERFORMANCE REQUIREMENTS AND BENCHMARKS

A. Electrical Output: 300 kWe

• 320 kWe Full Load Required on Dual Fuelled Diesel
• Factory load or connect to grid (or mini grid)?

B. Thermal Output:

• 225 kWth
• 85 C to Dry Kilns, Accumulator or District Heat Distribution

C. Capacity Factor, Availability, Operating Hours

• 6000 hours at 300 kWe = 6000/8760 = 68% capacity factor

D. Economic Targets, $/kWh, $/kcal

• Installed $3000/kWe (Actual $5,000)
• Cost of fuel gas = 50% of diesel or LP
• Cost of electricity = 80% of diesel or LP based power
• Biomass Gasification/Power Generation Model, California Biomass Collaborative

II. MAJOR COMPONENTS

A. FUEL PREPARATION: SIZING, Densification

• Fuel Chippers and Chunkers, Donald Takala,  September 2005
• A Study on Improved Biomass Briquetting AIT Thailand 2002

B. FUEL PREPARATION: DRYING

C. GASIFIER AND FEED SYSTEM

D. ASH HANDLING

E. HOT GAS COOLING

F. GAS CLEANING

• Measuring Gasifier Tars: Draft Standard, www.tarweb.net Paul de Wild, ECN September 2005
• Evolution of Gas Cleaning, Kari Salo IEA Task WS2 October 2004
• Formation, Decomposition and Cracking of Tars in Gasification Danish Technological University April 2005
• Gas Cleaning for Staged Gasifiers, Claus Hindsgaul, DTU, GasNET meeting autum 2002, Strasbourg.
• Low Temperature Particle Filtration of Wood Gas with Low Tar Content Claus Hindsgaul, Ulrik Henriksen and Jens Dall Bentzen. 12th European Conference and Technology Exhibition on Biomass for Energy, Industry and Climate Protection. Amsterdam June 2002, pp. 494-497.
• Conditioning of Producer Gas Chandrakant Turare
• Tar Decomposition with Catalysts, VTT
• Guideline for Standardized Tar Measurement tarweb.nt (BTG)
• BioHeatpipe Reformer, EC FP5
  • Performance Characteristics of the Biomass Heatpipe Reformer
  • Decentralized Generation of Heat and Power with the Biomass Heatpipe Reformer

G. ENGINE-GENERATOR SYSTEM

• Woodgas as an Engine Fuel FAO 1986
• Study on performance of biomass gasifier-engine systems and their environmental aspects FAO
• Gasifier Action Research Project (GARP) Indian Institute of Technology, Bombay, India
• Fluidyne Website NZ, Engines, Engine Tables, Engine Photos , Engine Oil and Soot
• Producer Gas Driven Engines Chandrakant Turare
• FORD VSG 411 FUELED BY PRODUCER GAS FROM A TWO-STAGE GASIFIER, DTU 2001
• Woodgas Cart, Japan, Feb 2004

H. OTHER THERMAL/ELECTRICAL SYSTEMS (e.g. ORMAT, SPILLING)

• CSIRO Energy Technology:CHP and Cooling using Micro Turbines in Australia 2003 CSIRO

I. HEAT SYSTEM

J. WASTEWATER TREATMENT

• Gasifier Cleanout Waste: Condensate and Char, Doug Williams, Fluidyne, July 2005
• Toxicity of Wastewater Generated from Gasification of Woodchips, IEA Report, Lunds University June 2003

K. GAS HANDLING, COMPRESSION, STORAGE

L. EMISSIONS

• Workshop Sept 28: Health,Safety and Environment of Biomass Gasification IEA/Gasnet September 2005
• CO Emissions from Gas Engines Fueled by Producer Gas, Jesper Ahrenfeldt, Danish Technological University, Joint IEA and GasNET meeting Autumn 2002 , Strasbourg.

III. SAMPLE SUPPLER SYSTEM SPECIFICATIONS FOR 200 kWe

Suggestions welcome

Edited by Tom Miles
Bioenergy Lists Administrator
tmiles@trmiles.com