hrzz_logo.pngGreener approach to Ship Design and Optimal Route Planning (GASDORP)

Funded by: Croatian science foundation - project 8722 



Activities and news

June 2018

Invited lectures Faculty of Maritime Sciences, University of Kobe, Japan


Valčić Marko, Prpić‐Oršić Jasna, and Vučinić Dean. "Application of a pattern recognition method to estimate wind loads on ships and marine objects." Materialwissenschaft und Werkstofftechnik 48.5 (2017): 387-399.

Sasa Kenji, Faltinsen Odd Magnus, Li-Feng Lu, Wataru Sasaki, Prpić-Oršić Jasna, Kashiwagi Masashi, and Ikebuchi Takuro. "Development and validation of speed loss for a blunt-shaped ship in two rough sea voyages in the Southern Hemisphere." Ocean Engineering 142 (2017): 577-596.

Vettor Roberto, Prpić-Oršić Jasna, and Guedes Soares Carlos. "Impact of wind loads on long-term fuel consumption and emissions." Brodogradnja: časopis brodogradnje i brodograđevne industrije (2017).

Randić, Miroslav, Pavletić Duško, and Turkalj Goran. "The Measurement of Weld Surface Geometry." 17th International Congress, International Maritime Association of Mediterranean, IMAM2017. 2017.

Valčić, Marko, and Prpić-Oršić Jasna. "Forbidden zone handling in optimal thrust allocation of DP vessels." 17th International Congress of the International Maritime Association of the Mediterranean IMAM 2017. 2017.

Mrzljak, Vedran, Senčić Tomislav, and Prpić-Oršić Jasna. "Energy efficiency and energy power losses of the turbo-generator steam turbine from LNG carrier propulsion system." International Scientific Conference-Machines. Technologies. Materials-Winter Session. 2018.

Parunov Joško, Guedes Soares Carlos, Hirdaris Spyros, Lee Yongwan, Liu Shukui, Papanikolau Apostolos, Prpić-Oršić Jasna, Ruponen Pekka, Vitali Natalija. “Benchmark study and uncertainty assessment in numerical predictions of global wave loads in damaged ships”, Marine structures, 2018. (in review)

Mauro Francesco, Prpić-Oršić Jasna. “Determination of a DP operability index for an offshore vessel in early design stage”, Ocean Engineering, Vol. 122, No 1, pp. 222-240, ISSN 0029-8018, Elsevier Science Ltd, Oxford, United Kingdom, USA, 2018. (in review)

Vitali Natalija, Prpić-Oršić Jasna, Guedes Soares Carlos. “Coupling voyage and weather data to estimate speed loss of container ships in realistic conditions“, Ocean Engineering, 2018 (in review)

Mrzljak, Vedran, Prpić-Oršić Jasna, and Žarković Božica. "Mean pressure of mechanical losses equation for marine slow speed two-stroke diesel engine." International Scientific Conference-High Technologies. Business. Society-2018. 2018.

Mrzljak, Vedran, Žarković Božica, and Prpić-Oršić Jasna. "Marine slow speed two-stroke diesel engine-numerical analysis of efficiencies and important operating parameters." INDUSTRY 4.0. 2017.


M. Valčić, J. Prpić-Oršić: Hybrid method for estimating wind loads on ships and marine objects based on elliptic Fourier analysis and radial basis neural networks, Ocean Engineering, Vol. 122, No1 , pp.222-240, ISSN, 0029-8018 Elsevier Science Ltd, Oxford, United Kingdom, USA, 2016

M. Valčić, J. Prpić-Oršić, D. Vučinić: Application of pattern recognition method for estimating wind loads on ships and marine objects, 10th International Conference on Advanced Computational Engineering and Experimenting, ACE-X 2016, 3.-6.6.2016, Split

J. Prpić-Oršić, M. Valčić: Sensitivity analysis of wind load estimation method based on elliptic Fourier descriptors, Proceedings of Maritime Technology and Engineering - MARTECH 2016, ISBN 978-1-138-0300-8, 151-160, Lisabon, 2016

N. Vitali, J. Prpić-Pršić, C. Guedes Soares: Uncertainties related to the added resistance estimation, Proceedings of Maritime Technology and Engineering - MARTECH 2016, ISBN 978-1-138-0300-8, 391-399, Lisabon, 2016

J. Prpić-Oršić, O. M. Faltinsen, J. Parunov: Influence of operability criteria limiting values on ship speed, časopis Brodogradnja, Vol 67, No 3, http:/// dx.dio.org/10.21278/brod67303, 2016

J. Prpić-Oršić, D. Mandić, N. Benić, Ž. Radić: Analiza nenamjernog pada brzine tankera na morskim valovima, Simpozij Sorta 2016, Trogir, 2016

N. Vitali, J. Prpić-Oršić, C. Guedes Soares: Methods for added resistance estimation in head and oblique waves, Simpozij Sorta 2016, Trogir, 2016

D. Legović, R. Dejhalla: An overview of measures of ship's energy efficiency improvement, Simpozij Sorta 2016, Trogir, 2016

D. Pavletić, T. Vidolin, M. Šuper, Ž. Vučković: Ishodi učenja i potrebe tržišta rada - primjer iz područja zavarivanja, Simpozij Sorta 2016, Trogir, 2016

M. Randić, D. Pavletić, F. Sedmak: Utvrđivanje utjecajnih parametara na kvalitetu zavarenog spoja primjenom potpunog plana pokusa, Simpozij Sorta 2016, Trogir, 2016 T. Mrakovčić, O. Bukovac, J. Prpić-Oršić: Numerical simulation of two-stroke low speed turbocharged engine in heavy sea conditions, Simpozij Sorta 2016, Trogir, 2016

May 2016

Equipment testing and measurements of ship motions and engine parameters onboard a training ship "Kraljica mora"

Poster GASDORP 2018.png


Project summary

The accurate calculation of attainable ship speed at actual sea is essential from economical and also environmental aspects. Reliable ship speed loss estimation under real environmental conditions allows a more accurate prediction of the power increase and fuel consumption as well as gas emissions from ships. Nowadays this second issue becomes very important because of the problem of global warming. Technological enhancement to ships like improved hull designs as well as improvement in power and propulsion systems could potentially reduce CO2 emission up to 35 %. These measures could effectively be combined with several other operational measures, such as weather routing and voyage planning, in order to ensure that fuel consumption and CO2 emissions from ships are minimized on every voyage.

The proposed research will be conducted in three main areas:
  1. Improvement of the methodology of ship speed, fuel consumption and greenhouse gases (GHG) emissions (especially CO2) calculation on actual weather conditions
  2. Optimization of the ship hull (bow and stern) and ship propulsion system operating in actual weather condition
  3. Optimization of ship route by taking into account all relevant parameters: weather prediction, attainable ship speed on waves, main engine performance and navigation constrains.

The objective is to improve ship design and performance taking into accounts the environmental issue, creating a so called eco-efficient or “green ” ship design.

The project team consists of the scientists who are experts in the naval architecture, mechanical engineering and marine engineering field which allow solving this problem multidisciplinary way.

Team members

Prof. Jasna Prpić–Oršić, FE
Prof. Odd Magnus Faltinsen, NTNU
Prof. Roko Dejhalla, FE
Prof. Tomislav Mrakovčić, FE
Prof. Vladimir Medica, FE
Prof. Duško Pavletić, FE
Prof. Igor Rudan, FMS
Ozren Bukovac, PhD (postdoc), FE
Dunja Legović, PhD (postdoc) FE
Nikola Račić, PhD (postdoc), MFS
Marko Valčić, PhD student, FMS
Natalija Vitali, PhD student, FE