skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: System Modeling of ORNL s 20 MW(t) Wood-fired Gasifying Boiler

Abstract

We present an overview of the new 20 MW(t) wood-fired steam plant currently under construction by Johnson Controls, Inc. at the Oak Ridge National Laboratory in Tennessee. The new plant will utilize a low-temperature air-blown gasifier system developed by the Nexterra Systems Corporation to generate low-heating value syngas (producer gas), which will then be burned in a staged combustion chamber to produce heat for the boiler. This is considered a showcase project for demonstrating the benefits of clean, bio-based energy, and thus there is considerable interest in monitoring and modeling the energy efficiency and environmental footprint of this technology relative to conventional steam generation with petroleum-based fuels. In preparation for system startup in 2012, we are developing steady-state and dynamic models of the major process components, including the gasifiers and combustor. These tools are intended to assist in tracking and optimizing system performance and for carrying out future conceptual studies of process changes that might improve the overall energy efficiency and sustainability. In this paper we describe the status of our steady-state gasifier and combustor models and illustrate preliminary results from limited parametric studies.

Authors:
 [1];  [1];  [1];  [1]
  1. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Fuels, Engines and Emissions Research Center (FEERC)
Sponsoring Org.:
USDOE Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
992112
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Conference
Resource Relation:
Conference: American Flame Research Committee 2010 Pacific Rim Combustion Symposium, Lahaina, HI, USA, 20100926, 20100929
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; WOOD BURNING FURNACES; BOILERS; ORNL; GAS GENERATORS; PRODUCER GAS; STEAM GENERATION PLANTS; ENERGY EFFICIENCY; MONITORING; PERFORMANCE; STAGED COMBUSTION; MATHEMATICAL MODELS; PARAMETRIC ANALYSIS; Biomass gasification boiler

Citation Formats

Daw, C Stuart, FINNEY, Charles E A, Wiggins, Gavin, and Hao, Ye. System Modeling of ORNL s 20 MW(t) Wood-fired Gasifying Boiler. United States: N. p., 2010. Web.
Daw, C Stuart, FINNEY, Charles E A, Wiggins, Gavin, & Hao, Ye. System Modeling of ORNL s 20 MW(t) Wood-fired Gasifying Boiler. United States.
Daw, C Stuart, FINNEY, Charles E A, Wiggins, Gavin, and Hao, Ye. Fri . "System Modeling of ORNL s 20 MW(t) Wood-fired Gasifying Boiler". United States.
@article{osti_992112,
title = {System Modeling of ORNL s 20 MW(t) Wood-fired Gasifying Boiler},
author = {Daw, C Stuart and FINNEY, Charles E A and Wiggins, Gavin and Hao, Ye},
abstractNote = {We present an overview of the new 20 MW(t) wood-fired steam plant currently under construction by Johnson Controls, Inc. at the Oak Ridge National Laboratory in Tennessee. The new plant will utilize a low-temperature air-blown gasifier system developed by the Nexterra Systems Corporation to generate low-heating value syngas (producer gas), which will then be burned in a staged combustion chamber to produce heat for the boiler. This is considered a showcase project for demonstrating the benefits of clean, bio-based energy, and thus there is considerable interest in monitoring and modeling the energy efficiency and environmental footprint of this technology relative to conventional steam generation with petroleum-based fuels. In preparation for system startup in 2012, we are developing steady-state and dynamic models of the major process components, including the gasifiers and combustor. These tools are intended to assist in tracking and optimizing system performance and for carrying out future conceptual studies of process changes that might improve the overall energy efficiency and sustainability. In this paper we describe the status of our steady-state gasifier and combustor models and illustrate preliminary results from limited parametric studies.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2010},
month = {1}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: