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Area of Interest 10 - Gasification TransportProperties

Published on AidPage by IDILOGIC on Jun 24, 2005
Administered by:

Department of Energy, All Departmental Locations, All DOE Federal Offices
(see all US Federal Agencies)

Explore all postings for this grant program:
  • Original Grant - May 25, 2005
Applications Due:

Jul 7, 2005

total funding: Not Available
max award: none
min award: none
cost sharing, matching: Yes
number of awards: Not Available
type of funding: Grant

NOTE - Registration Requirements: As part of theDepartment?s implementationof e-Government, WE ARE REQUIRING THE SUBMISSION OF APPLICATIONS THROUGHGRANTS.GOV. There are several one-time actions you must complete in ordertosubmit an application through Grants.gov (e.g., obtain a Dun and BradstreetData Universal Numbering System (DUNS) number, register with the CentralContractor Registration (CCR), register with the credential provider andregister with Grants.gov). You must complete all the one-time actions in?GetStarted? at www.Grants.gov prior to submitting your initial application.APPLICANTS, WHO ARE NOT REGISTERED WITH CCR AND GRANTS.GOV, SHOULD ALLOW ATLEAST 14 DAYS TO COMPLETE THESE REQUIREMENTS. It is suggested that theprocessbe started as soon as possible.Area of Interest 10 - Gasification Transport PropertiesThe scale-up of energy systems has historically depended upon theapplicationof evolutionary design techniques, such as the extrapolation of engineeringcorrelations that have been verified through the operation of pilot andsub-commercial scale systems. This technique can be used to allow biggerjumpsin the scaling process through the application of advance simulationsoftwareto make performance predictions for various design changes. This isparticularly true for the advanced transport gasifier in which a major goalofthe system designers and modelers is to be able to simulate the complexbehavior in gas-solid chemically reacting flows in transport reactors andcirculating fluidized bed systems through the development ofEulerian-Euleriansimulation codes such as MFIX. To support the mathematical simulationcodes,research is being conducted on the hydrodynamics in these advancedgas-solidscontactors under atmospheric and pressurized conditions using varioussolids.The experimental data on the hydrodynamics of these flows provides crucialinformation to the modelers, providing them with experimental data on thehydrodynamic behavior of the gas and solids to which they can tune themodels.To date, only one part of the simulation is being tuned with theexperimentaldata, that being the overall flow field. The simulation of gasifiersrequiresinformation on both gas and solids species movements and the interphasespeciestransport. The engineer/designer, unless equipped with specificexperimentallybased empirical correlations for the reactor system under consideration, isrequired to go to the open literature to obtain correlations for the axialandradial gas dispersion coefficients, the solids axial and radial dispersioncoefficients and the interphase mass transfer coefficient between the solidphase and the gas phase. This is a difficult task at present since thesevaluesdiffer by up to 7 orders of magnitude for the mass transfer coefficient andupto 5 orders of magnitude for dispersion coefficients. Recent simulationshaverevealed that an arbitrary selection of high values for these propertiesprovides conversion predictions four times greater than an arbitraryselectionof low values.DOE is interested in improving the current correlations that describe themasstransport and dispersion of both the solids and the gas in circulatingfluidized beds and transport reactors. Investigations should be aimed atproviding experimental data and predictive correlations that are a functionofthe flow regimes (fast fluid bed, core-annular and dense up-flow) and localproperties such as solids and gas velocity, solids velocity, solidsfraction,granular temperature, etc. Past experience has shown that reactors withrisersno less than about 0.15m in diameter and about 9m in height are mostsuitablefor generating reliable experimental data. Of particular interest areinvestigations that produce correlations for gas velocities ranging from 3m/sto 15 m/s and solids flux values ranging from 200 kg/m2s to 600 kg/m2s.Experiments can be carried out at ambient conditions (100 to 150 kPa and 20to40 degrees C) or at elevated pressure and temperature.To link to the master announcement DE-PS26-05NT42472-00, please click thefollowing link:https://e-center.doe.gov/iips/faopor.nsf/UNID/AFDC3E3018D30D1C8525700C005DB010?OpenDocument

Who can apply:

Anyone/General Public
Other Private Institution/Organization
Private Institutions Of Higher Education
Public And State Controlled Institutions Of Higher Education

Eligible functional categories:
Funding Sources:

University Coal Research

More Information:

Click here to view the Opportunity

If you have problems accessing the full announcement, please contact: using thislink
If you have problems accessing the full announcement, please contact: Raymond Johnson

Address Info:

U.S. Department of Energy, National Energy TechnologyLaboratory, 3610 Collins Ferry Road (MS-I07) P.O. Box 880 Morgantown, WV26507-0880

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