Process Simulation Software
Nuclear and Thermal Power Plant Applications

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Publications and conference papers

Thermal power plants:

Lappalainen, J.; Lalam, V.; Charreire, R.; Ylijoki, J.
Dynamic modelling of a CFB boiler including the solids, gas and water-steam systems
Proceedings of the 12th International Conference on Fluidized Bed Technology (CFB-12)
23-26 May 2017, Krakow, Poland, pp. 333-340  

Antti Sirainen, Jukka Röppänen, Viljami Maakala, Jari Lappalainen, Esa Vakkilainen
Improved Evaluation of Recovery Boiler Water Circulation Design with a Help of the State-of-the-art CFD-based Heat Flux Data
2017 ICRC International Chemical Recovery Conference
24-26 May 2017, Halifax, Canada, 8 p. 

Papakonstantinou, Nikolaos; Savolainen, Jouni; Koistinen, Jarmo; Aikala, Antti; Vyatkin, Valeriy;
VTT Technical Research Centre of Finland
District heating temperature control algorithm based on short term weather forecast and consumption predictions
21st IEEE International Conference on Emerging Technologies and Factory Automation
ETFA´2016, 6-9.9.2016, Berlin, Germany

Paganus, Niklas; Honkoila, Karri; Karhela Tommi
Fortum Power and Heat Ltd. and VTT Technical Research Centre of Finland Ltd.
Integrating dynamic process simulation into detailed automation engineering
21st IEEE International Conference on Emerging Technology and Factory Automation
ETFA'2016, 6-9.9.2016, Berlin, Germany

Paganus, Niklas; Luukkainen, Marko; Honkoila, Karri; Karhela, Tommi
Fortum Power and Heat Ltd. and VTT Technical Research Centre of Finland Ltd.
Automatic Generation of Dynamic Simulation Models Based on Standard Engineering Data
2016 9th EUROSIM Congress on Modelling and Simulation
12-16.9.2016, Oulu, Finland

Juha Kuronen, Miika Hotti and Sami Tuuri
Fortum Oyj, City Solutions
Modelling and Dynamic Simulation of Cyclically Operated Pulverized Coal-Fired Power Plant
2016 9th EUROSIM Congress on Modelling and Simulation, Oulu, Finland, 12-16 September 2016

Mikkonen, H.; Lappalainen, J.; Kuivalainen, R.
Modelling and dynamic studies of the second generation oxy-fired CFB boiler
22nd INTERNATIONAL CONFERENCE ON FLUIDIZED BED CONVERSION, June 14-17, 2015, Turku, Finland.

Lappalainen, J; Tourunen, A.; Mikkonen, H.; Hänninen, M.; Kovács, J.
Modelling and dynamic simulation of a supercritical, oxycombustion circulating fluidized bed power plant concept—Firing mode switching case
International Journal of Greenhouse Gas Control, 28 (2014) 11-24.

Lappalainen, J., Blom, H., Juslin, K.
Dynamic process simulation as an engineering tool – A case of analysing a coal plant evaporator
VGB Powertech, 1/2 2012, pp. 62-68.

Nuclear:

Mickus, I.; Lappalainen, J.; Kudinov, P.
VALIDATION OF APROS CODE AGAINST EXPERIMENTAL DATA FROM A LEAD-BISMUTH EUTECTIC THERMAL-HYDRAULIC LOOP
Proceedings of ICAPP 2015, May 03-06, 2015, Nice (France), Paper 15178.

Karvonen, H., Lappalainen, J. & Liinasuo, M.
Automation awareness user interface study – preliminary results.
Enlarged Halden Project Group Meeting, Röros, Norway, September 7-12, 2014. Paper C2.7.

Jussi Näveri, Topi Tahvonen And Petri Hakasaari
Fortum Nuclear Services Ltd, Fortum Power and Heat Ltd
Testing and Utilization of Loviisa Full Scope Apros Model in Engineering and development Simulator
IYNC 2010, Cape Town, South Africa, 12-18 July 2010

Tommi Henttonen and Matti Paananen
Fortum Nuclear Services Ltd
Nuclear Combined Heat And Power - Analyses of Hot Water Pipeline Breaks in a Service Tunnel with Apros Simulation Software
ENC 2010 Conference (European Nuclear Conference), Spain, 30 May - 2 June, 2010

Matti Paananen and Tommi Henttonen
Fortum Nuclear Services Ltd
Investigations of a Long-Distance 1000-MW Heat Transport System with APROS Simulation Software
SMiRT 20 Conference, Finland, 9-14 August 2009

Joona Kurki and Malla Seppälä
VTT Technical Research Centre of Finland
Thermal Hydraulic Transient Analysis of the High-Performance Light-Water Reactor Using APROS and SMABRE
SMiRT 20 Conference, Finland, 9-14 August 2009

Tahvonen et. al.
Fortum Nuclear Services Ltd
Simulation Assisted Automation Testing During Loviisa Automation Renewal Project
IFAC Symposium on Power Plants and Power Systems Control, 5-8 July 2009, Tampere, Finland 

Karri Honkoila
Fortum Nuclear Services Ltd
Simulators for Loviisa Automation Renewal Project
IAEA Technical Meeting on Simulators, Advanced Training Tools and Technologies for the Nuclear Industry.
Vienna, Austria. 2-5 June 2009.

Porkholm, Kontio, Plit, Mustonen, Söderholm
Fortum Nuclear Services Ltd
Apros simulation model for Olkiluoto-3 EPR Applications
ENS TopSafe, Croatia, 30.9.-3.10.2008

Joona Kurki
VTT Technical Research Centre of Finland
Simulation of Thermal Hydraulic at Supercritical Pressures with APROS
IYNC 2008, Interlaken, Switzerland, 20 - 26 September 2008

Jussi Näveri and Pasi Laakso
Fortum Nuclear Services Ltd, VTT Technical Research Centre of Finland
Instructor Station for Apros Based Loviisa NPP Training Simulator
Asia Simulation Conference 2008, System Simulation and Scientific Computing

Ranta-Aho, Syrjälahti, Puska, Honkoila, Poittinen
VTT Technical Research Centre of Finland, Fortum Nuclear Services Ltd, Fortum Power and Heat Ltd
Preliminary Validation of the APROS 3-D Core Model of the New Loviisa NPP Training Simulator
NUTHOS-7, Korea, 5-9 October 2008

Peter Balint, Lisa Bladh
Forsmarks Kraftgrupp AB, Sweden
APROS simulation models for transient thermal hydraulic analyses of Forsmark's NPPs
Presentation at Kärnteknik 2008 in Sweden

Plit, H., Kontio, H., Kantee, H., Tuomisto, H. 
Fortum Engineering Ltd
LBLOCA Analyses with APROS to Improve Safety and Performance of Loviisa NPP
OECD/CSNI Workshop on Advanced Thermal-Hydraulic and Neutronic Codes: Current and Future Applications, Barcelona, Spain, 10-13 April 2000.

Puska, Norrman, Siltanen, Porkholm, Latyeva, Semishin
VTT Energy, IVO Power Engineering Ltd, Gidropress EDO
Advanced Process Simulation with Apros for VVER-91, the Next-Generation Reactor Design for VVER-1000
ARS 97, USA, 1-4 June 1997

Porkholm, K., Honkoila, K., Nurmilaukas, P., Kontio, H. 1997.
IVO Power Engineering Ltd
APROS Multifunctional Simulator for Thermal and Nuclear Power Plants
Presented at WCSS '97, World Congress on Systems Simulation, 1-3 September 1997, Singapore.  

Renewables:

Sihvonen, Teemu; Savolainen, Jouni; Tähtinen, Matti
VTT Technical Research Centre of Finland
Modelling and Simulation of PtG Plant Start-Ups and Shutdowns
9th EUROSIM Congress on Modelling and Simulation
EUROSIM2016, 12-16.9.2016, Oulu, Finland

Tähtinen, Matti; Sihvonen, Teemu; Savolainen, Jouni; Weiss, Robert
Interim H2 storage in power to gas process: Dynamic unit process modelling and dynamic simulations
10th International Renewable Energy Storage, IRES 2016, 15 - 17 March 2016, Düsseldorf, Germany
Proceedings. EUROSOLAR Europäische Vereinigung für Erneuerbare Energien e.V (2016)

Peltoniemi, Pasi; Pyrhönen, Olli; Savolainen, Jouni; Weiss, Robert; Pasonen, Riku
Frequency regulation possibilities of power-to-gas plants in grids including high shares of renewable energy production
10th International Renewable Energy Storage, IRES 2016, 15 - 17 March 2016, Düsseldorf, Germany
Proceedings. EUROSOLAR Europäische Vereinigung für Erneuerbare Energien e.V (2016), 10 p.

Savolainen, Jouni; Kannari, Lotta; Pennanen, Jari; Tähtinen, Matti; Sihvonen, Teemu; Pasonen, Riku; Weiss, Robert
Operation of a PTG plant under power scheduling
10th International Renewable Energy Storage, IRES 2016, 15 - 17 March 2016, Düsseldorf, Germany
Proceedings. EUROSOLAR Europäische Vereinigung für Erneuerbare Energien e.V. (2016)

Terdalkar R. J., Doupis D., Clark M., Joshi A., Wang C.
Alstom Power Inc.
Transient Simulation of High Temperature High Pressure Solar Tower Receiver
Energy Procedia, 69 (2015), 1451-1460.

Hakkarainen, E.; Tähtinen. M.
Dynamic modelling and simulation of linear Fresnel solar field model based on molten salt heat transfer fluid
SolarPACES 2015, Cape Town, South Africa, 13 – 16 October, 2015.

Hakkarainen, E.; Tähtinen, M.; Mikkonen, H.
Dynamic model development of linear Fresnel solar field
ASME 2015 9th International Conference on Energy Sustainability, ASME 2015 Power & Energy, San Diego, USA, 28 June – 2 July 2015.

Jegoroff, M.; Mikkonen, H.; Tähtinen, M.; Leino, T.; Tuuri, S.
Dynamic studies of integrated power plants
POWER-GEN Europe, Amsterdam, Netherlands, 9 – 11 June 2015.

Terdalkar R. J., Qian H., and Ye G.
Alstom Power Inc.
Unique Challenges in Design and Operation Philosophy of Solar Thermal Power Plants
Energy Procedia, 49 (2014), 2521-2531.

Tsupari, E.; Kärki, J.; Tähtinen, M.; Hakkarainen, E.
Feasibility of CSP integration with coal and biomass co-fired power plants – prospects in different operation environments
4th Solar Integration Workshop, International Workshop on Integration of Solar Power into Power Systems, Berlin, Germany, 10 – 11 November 2014.

Pulp and Paper:

Savolainen, Jouni; Lappalainen, Jari
Identification of process bottlenecks with global sensitivity analysis, an application to papermaking processes
Nordic Pulp and Paper Research Journal. SPCI. Vol. 30 (2015) No: 3, 393-401
http://www.npprj.se/html/download-file.asp?j=20&m=10045&u=19725

Lappalainen, J., Savolainen, J., Myller, T., Juslin, K.
Dynamic simulation studies for enhanced board machine control
16th IFAC world congress. Prague, 4-8 July 2005, 8 p.

Jari Lappalainen, Petteri Kangas, Jean-Peter Ylén, Juha Pursimo, Jouni Savolainen, Kaj Juslin
Experiences and challenges in dynamic simulation of paper production processes
Proceedings of SIMS 2004, Ed. B. Elmegaard, J.Sporring, K.Erleben, K. Sørensen, Copenhagen, September 23-24, 2004, ISBN 87-7475-3169, pp. 59-67.

Lappalainen, J., Myller, T., Vehviläinen, O., Tuuri, S., Juslin, K.
Enhancing grade changes using dynamic simulation
TAPPI JOURNAL, Online Exclusive, December 2003, Vol 2(12), 13 p.

Other:

Martinez GS, Sierla S, Karhela T, Lappalainen J, Vyatkin V.
Automatic Generation of a High-Fidelity Dynamic Thermal-hydraulic Process Simulation Model from a 3D Plant Model.
IEEE Access 2018;6:45217–32. http://dx.doi.org/10.1109/ACCESS.2018.2865206

Santillán Martinez, Gerardo; Miettinen, Tuomas; Aikala, Antti; Savolainen, Jouni; Kondelin, Kalle; Karhela, Tommi; Vyatkin, Valeriy
VTT Technical Research Centre of Finland
Parameters selection in predictive online simulation
14th International Conference on Industrial Informatics
18-21.7.2016, Poitiers-Futuroscope, France

Lepistö, V., Lappalainen, J., Sillanpää, K., Ahtila, P.
Dynamic process simulation promotes energy efficient ship design
Ocean Engineering 111 (2016) 43-55, DOI: 10.1016/j.oceaneng.2015.10.043

Pelkola, Antti; Saarela, Ville; Ojala, Martti; Miettinen, Tuomas; Savolainen, Jouni
Co-simulation with rigorous dynamic simulators and optimizing APC via OPC UA communication
Automaatio XXI seminaari, Automaatio 2015, 17 - 18 March 2015, Helsinki, Finland.
Suomen Automaatioseura ry - Finnish Society of Automation (2015), 6 p.

Savolainen, Jouni; Lappalainen, Jari; Aikala, Antti; Ruuska, Pekka
Enhancing energy management of a car manufacturing plant through modelling and dynamic simulation
29th European Conference on Modelling and Simulation, ECMS 2015, 26 - 29 May 2015, Albena, Bulgaria, p. 259-265