ntnu department of chemical engineering. acronym for “cfd applied to reactor process technology”...

NTNU Department of Chemical Engineering


COMPUTATIONAL FLUID DYNAMICS APPLIED TOREACTOR PROCESS TECHNOLOGY

(CARPET )


• Acronym for “CFD Applied to Reactor ProcEss Technology”• A merged Strategic University (SUP)- and a Strategic Institute (SIP) Program• Program duration : from 2001 through 2004

• Total budget : 16.9 MNOK financed by NFR

• 5 NTNU Doctorates (and 1 NTNU PostDoc) :- Experimental characterization of dispersed multiphase flows- Modeling of dispersed multi-fluid flow in chemical reactors- Modeling of Fluidized bed reactors- Application of Large Eddie Simulation (LES) in reactor modeling- Experiments on near-interface flow phenomena

• 3 SINTEF research institutes (Materials Technology, Chemistry and Mathematics)

• 2 NTNU departments (Chemical Engineering and Energy and Process Technology)

• www.carpet.ntnu.no

The CARPET program



Stein Tore Johansen, SINTEF MaterialteknologiMarc Dhainaut , SINTEF MaterialteknologiHarald Laux, SINTEF MaterialteknologiPaal Skjetne, SINTEF KjemiTrond Kvamsdal, SINTEF MatematikkTor Ytrehus, NTNU Energi og prosessteknikkHugo Jakobsen, NTNU Kjemisk prosessteknologiHallvard Svendsen, NTNU Kjemisk prosessteknologi

Steering group:

Secretary

Elisabeth Thorbjørnsen


Contact team for the PhD students

Elisabeth Thorbjørnsen:- Hallvard F. Svendsen- Svend Grådahl - Pål Tetlie- Kai Hjarbo- Knut Bech- Marc Dhainaut

Thomas Braseth:- Stein Tore Johansen - Reidar Kristoffersen- Knut Bech- Ernst Meese- Benjamin Ravary- Trond Kvamsdal- Rune Engeskaug- Carl Birger Jensen

Håvard Lindborg:- Hugo Jakobsen- Harald Laux- Stein Tore Johansen- Magne Lysberg- Leif Rune Hellevik- Carl Birger Jensen

Carlos Dorao:- Hugo Jakobsen- Stein Tore Johansen- Paal Skjetne- Marc Dhainaut- Carl Birger Jensen

Maria Fernandino:- Tor Ytrehus- Knut Bech- Hallvard Svendsen- Svend Grådahl- Pål Tetlie- Kai Hjarbo



ObjectivesThe main goals of the program are to develop new physical models for fluid flow computations, particularly focused on models applicable to design and optimization of chemical and metallurgical processes, and to strengthen the

academic education and research in these fields at NTNU and SINTEF by:

•Graduating a minimum of 5 doctorates within these fields and strengthen the collaboration with international research groups through exchange on doctoral and post doc. level.

•Developing model programs and experimental validation tools for a selection of specific applications.

•Establish a graduate course in advanced reactor technology and multiphase flow.

•Strengthen the links between the fundamental and applied research, and

the Norwegian industry.



Scientific challenges:

Improve the understanding and the predictability of dispersions with fluid andsolid particles. In particular the physics controlling interfacial mass transfer,slip velocities and particle, bubble and droplet size distribution will beinvestigated.

Develop a capability to predict multi-material and multi-physics flows withinthe same numerical framework.

Develop a robust and sufficiently accurate method to compute the chemicalconversion and composition in multiphase reactors with a large number ofchemical species involving liquid, gas and solid components.

Develop simulation tools capable of handling particulate suspensions wherethe particle dynamics dominate the flow and the physical phenomena underinvestigation.


The CARPET Project – Dissemination of information

• We aim at publishing a minimum of 25-30 papers and contributions in refereed journals and at national and international conferences.

• We will arrange semi-annual seminars where the dr.ing fellows and researchers will present their work for invited industrial partners and other interested parties.

• Close collaboration with the NFR- and industry supported programme HiPGaS will be maintained (see www.hipgas.ntnu.no).


The CARPET Project – Results?

Improved Knowlege on:

– Multiphase Flow Modeling (bubbles/particles - Stratified)– Population Balance Modeling (coalescence/breakup)– Turbulence Modeling (single- and multiphase Flow, LES)– Granular Flow Modeling– Numerical Schemes (Convection, Interface, Cut-Cells, LB)– Simulation and Validation of Stirred Tanks (Stirrer/Heat)– Experimental Techniques (Fluid Particles, Interface, bulk)– Discrete Element Method (DEM)– Project Administration!


The CARPET Project – Results?

Number of Journal Publications: 8List of student contributions:

A Numerical Study of the Interactions Between Viscous Flow, Transport and Kinetics in Fixed Bed ReactorsJakobsen, H. A., Lindborg, H. and Handeland, V. Computers & Chemical Engineering, 26 (3), 333-357, 2002.

Number of Conference Presentations: 9List of student contributions:

Parallelization and Performance Optimization of a Dynamic CFD Reactor ModelLindborg, H., Eide, V., Unger, S., Henriksen, S. T. and Jakobsen, H.A. CHISA 2002, Prague, Czech Republic, August 25-29, 2002. Paper no. E6.3.

Numerical Analysis and Experimental Validation of Bubble Size Distributions in Two-Phase Bubble Column Reactors

Bertola, F., Grundseth, J., Hagesæther, L., Dorao, C., Luo, H., Hjarbo, K. W., Svendsen, H. F., Vanni, M., Baldi, G. and Jakobsen, H. A. 3rd European-Japanese Two-Phase Flow Group Meeting, Certosa di Pontignano, September 21-27th, 2003.

Reports: 6

Compendium on Multiphase Flow Modeling


The CARPET Project – PhD Courses

Chemical Engineering:- Reactor Technology (1)

- Advanced Reactor Modeling (2)

- Industrial Colloid Chemistry (1)

Informatics, Matematics and Electronics (IME):- Introduction to Supercomputing (3)Self Study:

- A study of bubbles, drops and particles (1)- Modeling of dispersed fluid particle transport and interaction phenomena (1)- Modeling of Turbulence in Multiphase Flow (1)- Granular Theory (1)- Introduction to measurement techniques (von Karman Institute) (2)

Mechanical Engineering:- Viscous Flow and Turbulence (1)

- Experimental Methods in Process Engineering (1)

- Multiphase Flow Modeling (3)

- Turbulence (1)

- Rheology and non-Newtonian Fluids (1)

- Computational Heat and Fluid Flow (4)

- Advanced Computational Fluid Dynamics (4)

Language and communication studies (Institutt for Språk og kommunikasjonsstudier)

- Scientific Writing and Oral Presentation (1)


The HiPGaS Project – PhD Courses

Chemical Engineering:- Reactor Technology (1)

- Advanced Reactor Modeling (1)

- Industrial Colloid Chemistry (1)

- Applied Thermodynamics (1)

- Fluid Phase Equilibria (1)

Self Study:- A study of bubbles, drops and particles (2)- Modeling of dispersed fluid particle transport and interaction phenomena (1)- A study of gas-droplet flow in separator units (1)- Selected Topics on Measuring Techniques (1)- Laboratory Course on Instrumentation and Control (1)- Safety and Hazop analyzes (1)- Information Search (2)- Research Dissemination (1) - Introduction to measurement techniques (von Karman Institute) (1)- Phase Equilibria in the Chemical, Biochemical and Petroleum Industries (DTU) (1)

Mechanical Engineering:- Viscous Flow and Turbulence (1)

- Multiphase Flow Modeling (1)

- Turbulent Flow (1)

- Computational Heat and Fluid Flow (2)

- Advanced Computational Fluid Dynamics (1)

Language and communication studies

- Scientific Writing and Oral Presentation (2)

Physics:- Classical Transport Theory (1)

Chemistry: -Statistical Thermodynamics and Computer Simulations (1)

- Thermodynamics of Hydrocarbon Mixtures (1)


Bubble column

Fluidized bed reactor

Stirred Tank

injection(gas)

Investigations:•bubble coalescence•bubble breakup•population balance•flow pattern•Coherent structures•High pressure

Investigations:•particle interaction•Reactions•Flow pattern•Heat Transport•Component Transport•High pressure•Coherent structures

Investigations:•bubble coalescence•bubble breakup•population balance•Flow pattern•Heat Transport

Investigations:•droplet coalescence•droplet breakup•droplet entrainment•droplet deposition•high pressure system•flow pattern

•Thermodynamics

•population balance•Global and meso- scale separation efficiency

Separation equipment

Experiments Techniques:•PIV / PTV•Probes•LDV

ExperimentsTechniques:•PIV / PTV•Probes•LDV

Common fields of interest

injection(gas / droplets)


CARPET and HiPGaS Ph.D. students

Macro scale

Meso scale

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HiPGaS CARPET

ScrubberReactors

Particle collisionFilm drainingCoalescenceBreakupDepositionEntrainment

Marangoni effectColloid chemestryCoalescence


The CARPET Project – Initial Budget

SINTEF 2100 2200 2200 2200 8700NTNU 1600 2200 2200 2200 8200

Main activities 2001 2002 2003 2004 Total 5 Dr.ing 600 1910 1910 1580 6000SINTEF: M.T 775 650 650 800 2875SINTEF: A.C 725 600 600 750 2675SINTEF: A.M 300 300 300 300 1200Post Doc. 240 240 240 240 960Progr. Mangm. 300 250 250 300 1100Conf. & travel 250 250 250 300 1050Equipment 300 200 200 130 830Contingencies 210 210Total 3700 4400 4400 4400 16900


The CARPET Project – Budget November 2003Running cost overview and budget (CARPET)

Cost distribution 2001 2002 2003 2003 2004 2005 2006 Project

Cost August budget budget budget budget sum

NTNUSalaries Elisabeth Thorbjørnsen, Carpet 1(B) 0 140264 240944 393024 393024 405858 314726 1646896 Carlos Dorao, Carpet 2(C) 0 94215 178805 294768 294768 304394 236045 1224190 Håvard Lindborg, Carpet 3(A) 0 183195 162059 294768 294768 304394 0 1077125 Thomas Braseth, Carpet 4(D) 0 245779 153034 393024 393024 152197 0 1184024 Maria Fernadino, Carpet 5(E) 0 147949 155885 393024 393024 304394 0 1238391 Summer stud./Guest prof. 0 0 0 0 50000 25000 25000 100000 SUM Salaries 0 811402 890727 1768608 1818608 1496237 575771 6470626 Overhead NTNU(15%) 134775 148574 171460 265291 287791 234936 91616 1162983 Roar Meland 0 174924 17492 17492 0 0 0 192416 SUM indirect costs 134775 1134900 1079679 2051391 2106399 1731173 667387 7826025

Direct costs Computers etc. 98983 26409 0 0 10000 10000 0 145392 Equipment/Equipm. Service 46695 0 12070 50000 50000 25000 0 171695 Service/software 0 0 0 0 0 0 0 0 Recruitment 15743 22366 0 0 0 0 0 38109 Conferences etc. 2587 0 0 0 75000 75000 0 152587 Seminars/meetings 4615 15991 16817 25000 20000 20000 0 85606 Administration/incl. Travel 0 106703 42692 50000 40000 40000 40000 276703 SUM direct costs 168623 171469 71579 125000 195000 170000 40000 870092

Sum expenses 303398 1306369 1151258 2176391 2301399 1901173 707387 8696117

SINTEF Direct costs 1870370 2480168 715013 2349462 2000000 0 0 8700000

Total costs 2173768 3786537 1866271 4525853 4301399 1901173 707387 17396117

Income NFR 3333333 3300000 2933333 5866667 4400000 0 0 16900000 HiPGaS 0 80000 80000 80000 80000 0 0 240000 Gas Centre 0 200000 200000 200000 0 0 0 400000 Corrections 0 164717 47255 47255 0 0 0 211972

Total income 3333333 3744717 3260588 6193922 4480000 0 0 17751972

Year balance 1159565 -41820 1394317 1668069 178601 -1901173 -707387 355855

Accumulated balance 1159565 1117745 2512062 2785814 2964415 1063242 355855 355855

ntnu department of chemical engineering. acronym for “cfd applied to reactor process technology”...

Documents

chemical reactors modeling

multiphase flow modeling

ntnu doctorates

computers chemical engineering

ntnu postdoc

optimization of chemical

carpet program slide

advanced reactor modeling