A Computational Workbench Environment for Virtual Simulation of a Vision 21 Energyplex

et al. 2003

This is the eighth Quarterly Technical Report for DOE Cooperative Agreement No: DE-FC26-00NT41047. The goal of the project is to develop and demonstrate a computational workbench for simulating the performance of Vision 21 Power Plant Systems. Within the last quarter, good progress has been made on all aspects of the project. Calculations for a full Vision 21 plant configuration have been performed for two coal types and two gasifier types. Good agreement with DOE computed values has been obtained for the Vision 21 configuration under "baseline" conditions. Additional model verification has been performed for the flowing slag model that has been implemented into the CFD based gasifier model. Comparisons for the slag, wall and syngas conditions predicted by our model versus values from predictive models that have been published by other researchers show good agreement. The software infrastructure of the Vision 21 workbench has been modified to use a recently released, upgraded version of SCIRun.

Section: Task 1 -Program Managementmentioning

confidence: 99%

“…Many of these models have been created by re-using models developed as part of the LEBS-POC prototype workbench developed during Year One of the program. Details on the models used in the Year One prototype workbench are available in [Bockelie et al, 2001], [Bockelie et al, 2002a]. …”

Section: Task 34 Gas Cleanup and Other Equipment Modelsmentioning

confidence: 99%

A Computational Workbench Environment for Virtual Power Plant Simulation

Bockelie¹,

Swensen²,

et al. 2003

“…REI previously developed both CFD and engineering process models for the different gasifiers [Bockelie et al, 2004]. The REI Entrained Flow Gasifier CFD models were built using GLACIER, REI's proprietary comprehensive two-phase reacting CFD-based code.…”

Section: Task 21 Enhance Sub-models In Rei Entrained Flow Gasifier Mmentioning

confidence: 99%

“…To compute pollutant emissions, vaporized metals and other trace species, finite-rate chemistry effects can be included in a post-processor mode. Further details on the enhancements to GLACIER for use in the REI Entrained Flow Gasifier CFD model are available in [Bockelie et al, 2002] and [Bockelie et al, 2004]. …”

mentioning

confidence: 99%

“…These systems are representative of the dominant, commercially available gasifier systems. Although we have focused our efforts on pressurized, oxygen fired systems, the models can also be used to model air blown or non-pressurized systems.REI previously developed both CFD and engineering process models for the different gasifiers [Bockelie et al, 2004]. The REI Entrained Flow Gasifier CFD models were built using GLACIER, REI's proprietary comprehensive two-phase reacting CFD-based code.…”

mentioning

confidence: 99%

See 1 more Smart Citation

A Virtual Engineering Framework for Simulating Advanced Power System

Bockelie¹,

Swensen²,

et al. 2008

In this report is described the work effort performed to provide NETL with VE-Suite based Virtual Engineering software and enhanced equipment models to support NETL's Advanced Process Engineering Co-simulation (APECS) framework for advanced power generation systems. Enhancements to the software framework facilitated an important link between APECS and the virtual engineering capabilities provided by VE-Suite (e.g., equipment and process visualization, information assimilation). Model enhancements focused on improving predictions for the performance of entrained flow coal gasifiers and important auxiliary equipment (e.g., Air Separation Units) used in coal gasification systems. In addition, a Reduced Order Model generation tool and software to provide a coupling between APECS/AspenPlus and the GE GateCycle simulation system were developed. CAPE-Open model interfaces were employed where needed. The improved simulation capability is demonstrated on selected test problems.As part of the project an Advisory Panel was formed to provide guidance on the issues on which to focus the work effort. The Advisory Panel included experts from industry and academics in gasification, CO2 capture issues, process simulation and representatives from technology developers and the electric utility industry. To optimize the benefit to NETL, REI coordinated its efforts with NETL and NETL funded projects at Iowa State University, Carnegie Mellon University and ANSYS/Fluent, Inc.The improved simulation capabilities incorporated into APECS will enable researchers and engineers to better understand the interactions of different equipment components, identify weaknesses and processes needing improvement and thereby allow more efficient, less expensive plants to be developed and brought on-line faster and in a more cost-effective manner. These enhancements to APECS represent an important step toward having a fully integrated environment for performing plant simulation and engineering. Furthermore, with little effort the modeling capabilities described in this report can be extended to support other DOE programs, such as ultra super critical boiler development, oxy-combustion boiler development or modifications to existing plants to include CO2 capture and sequestration.iii Table of Executive SummaryThe US DOE National Energy Technology Laboratory (NETL) is facilitating the development of future zero-emission, high-efficiency energy plants which could include co-production, from fossil fuels and opportunity fuels, a broad mix of power, heat, transportation fuels, and chemical products, using a wide range of plant sizes and configurations. Many of the proposed plant concepts are based on coal -an abundant, secure, stably priced fuel -and will use Integrated Coal Gasification Combined Cycle (IGCC) technology. Some plants, such as FutureGen, will include carbon capture. Computer simulation will play an important role in developing and deploying these advanced power generation systems. To reduce the time, cost and technical risk of evalua...

A Computational Workbench Environment for Virtual Power Plant Simulation

Bockelie¹,

Swensen²,

2002

This is the sixth Quarterly Technical Report for DOE Cooperative Agreement No: DE-FC26-00NT41047. The goal of the project is to develop and demonstrate a computational workbench for simulating the performance of Vision 21 Power Plant Systems. Within the last quarter, good progress has been made on the development of our IGCC workbench. Preliminary CFD simulations for single stage and two stage "generic" gasifiers using firing conditions based on the Vision 21 reference configuration have been performed. Work is continuing on implementing an advanced slagging model into the CFD based gasifier model. An investigation into published gasification kinetics has highlighted a wide variance in predicted performance due to the choice of kinetic parameters. A plan has been outlined for developing the reactor models required to simulate the heat transfer and gas clean up equipment downstream of the gasifier. Three models that utilize the CCA software protocol have been integrated into a version of the IGCC workbench. Tests of a CCA implementation of our CFD code into the workbench demonstrated that the CCA CFD module can execute on a geographically remote PC (linked via the Internet) in a manner that is transparent to the user. Software tools to create "walk-through" visualizations of the flow field within a gasifier have been demonstrated. .