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Welcome to the Energy Analysis Search Publications page. Hundreds of Energy Analysis related publications can be found in this repository. To get started, begin filtering the results below by using the quick filters located on the Search Publications Landing Page or search within filtered results by using the search box below. 


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Analysis Focus: Coal Gasification Power Plants

Techno-economic Analysis of an Integrated Gasification Direct-Fired Supercritical CO2 Power Cycle

Date: 5/10/2017
Contact: Nathan Weiland

This presentation describes recent systems studies of a coal-fueled, oxy-fired direct supercritical CO2 (sCO2) power cycle, which inherently captures carbon for storage (CCS). In this plant, coal is gasified in an entrained flow gasifier, the syngas is cleaned and burned with oxygen and diluent sCO2 in the cycle’s oxy-combustor. This is followed by turbine expansion and recuperation of thermal energy in the exhaust. After water is condensed from the working fluid, some of the CO2 is exhausted for CCS, and the balance is compressed and heated in the recuperator for return to the combustor. The conceptual design and system model for the plant are discussed, including thermal integration between the sCO2 cycle and the gasifier, and optimization of the overall plant configuration and operating conditions. The capital cost, operating expenses, and cost of electricity (COE) are also estimated. Results show improved efficiency and COE relative to IGCC plants with CCS.


Performance of an Integrated Gasification Direct-Fired Supercritical CO2 Power Cycle

Date: 5/23/2016
Contact: Nathan Weiland

This presentation discusses development and performance results of a coal gasification system integrated with a direct-fired supercritical CO2 (sCO2) power cycle.  In this plant, coal is first gasified and cleaned in order to avoid introducing sulfur and particulate matter into the sCO2 cycle, with the sCO2 cycle’s oxy-combustor burning the cleaned syngas with oxygen in a recycled sCO2 stream.  The plant is inherently amenable to carbon capture and storage (CCS) processes, as it produces a high pressure exhaust stream that is largely comprised of CO2. The baseline direct sCO2 cycle performance is discussed and compared to IGCC and oxy-coal AUSC reference plants with CCS.  The sensitivity of the sCO2 cycle’s performance to various operating parameters is also discussed, as well as the effect of various heat integration options on thermal efficiency, operability, and cost.


Performance Baseline for Direct-Fired sCO2 Cycles - Presentation

Date: 3/28/2016
Contact: Nathan Weiland

NETL has conducted an evaluation of the performance and emissions for a direct coal-fired supercritical CO2 (sCO2) power plant, which has recently received interest as a potentially lower-cost, fossil-fuelled power source with inherent amenability to carbon capture. This study describes a baseline coal-fired cycle configuration, where coal is first gasified and cleaned in order to avoid introducing sulfur and particulate matter into the sCO2 cycle, with the sCO2 cycle’s oxy-combustor operating on syngas. The baseline sCO2 plant design yields a net plant thermal efficiency of 37.7% (HHV), with 98.1% CO2 capture at 99.4% purity. This compares favorably to the reference IGCC plant, which has a 31.2% net HHV thermal efficiency, and 90.1% CO2 capture rate at 99.99% purity. The sensitivity of the sCO2 plant’s performance to its process variables is discussed, as well as their effect on plant operability and cost surrogate variables.


Performance Baseline for Direct-Fired sCO2 Cycles

Date: 3/28/2016
Contact: Nathan Weiland

NETL has conducted an evaluation of the performance and emissions for a direct coal-fired supercritical CO2 (sCO2) power plant, which has recently received interest as a potentially lower-cost, fossil-fuelled power source with inherent amenability to carbon capture. This study describes a baseline coal-fired cycle configuration, where coal is first gasified and cleaned in order to avoid introducing sulfur and particulate matter into the sCO2 cycle, with the sCO2 cycle’s oxy-combustor operating on syngas. The baseline sCO2 plant design yields a net plant thermal efficiency of 37.7% (HHV), with 98.1% CO2 capture at 99.4% purity. This compares favorably to the reference IGCC plant, which has a 31.2% net HHV thermal efficiency, and 90.1% CO2 capture rate at 99.99% purity. The sensitivity of the sCO2 plant’s performance to its process variables is discussed, as well as their effect on plant operability and cost surrogate variables.


Cost and Performance of PC and IGCC Plants for a Range of Carbon Dioxide Capture - Rev 1

Date: 9/19/2013
Contact: Timothy Fout

The objective of this study was to establish the cost and performance for a range of carbon dioxide (CO2) capture levels for new supercritical (SC) pulverized coal (PC) and integrated gasification combined cycle (IGCC) power plants.


Cost and Performance Baseline for Fossil Energy Plants, Volume 1: Bituminous Coal and Natural Gas to Electricity, Revision 2a, September 2013

Date: 9/1/2013
Contact: Timothy Fout

Objective is to establish baseline performance and cost estimates for today’s fossil energy plants, it is necessary to look at the current state of technology. Such a baseline can be used to benchmark the progress of the Fossil Energy RD&D portfolio. This study provides an accurate, independent assessment of the cost and performance for Pulverized Coal (PC) Combustion, Integrated Gasification Combined Cycles (IGCC), and Natural Gas Combined Cycles (NGCC), all with and without carbon dioxide (CO2) capture and sequestration assuming that the plants use technology available today.


Quality Guidelines for Energy System Studies: Capital Cost Scaling Methodology

Date: 1/31/2013
Contact: William Summers

The purpose of this section of the Quality Guidelines is to provide a standard basis for scaling costs, with specific emphasis on scaling exponents. The intention of having a standardized document is to provide guidelines for proper procedures to reduce the potential of errors and increase credibility through consistency. This document contains a listing of frequently used pieces of equipment and their corresponding scaling exponent for various plant types, along with their ranges of applicability. This document also details the equations to be used with each exponent.


Cost and Performance of PC and IGCC Plants for a Range of Carbon Dioxide Capture - Original

Date: 5/27/2011
Contact: Timothy Fout

The objective of this study was to establish the cost and performance for a range of carbon dioxide (CO2) capture levels for new supercritical (SC) pulverized coal (PC) and integrated gasification combined cycle (IGCC) power plants.