Augusto Manuel Pereira Carreira

Scopus Publications

Economic framework for green shipping corridors: Evaluating cost-effective transition from fossil fuels towards hydrogen
Beatriz Jesus, Inês Abreu Ferreira, Augusto Carreira, Stein Ove Erikstad, Radu Godina
International Journal of Hydrogen Energy, 2024
Global warming's major cause is the emission of greenhouse-effect gases (GHG), especially carbon dioxide (CO2) whose main source is the combustion of fossil fuels. Fossil fuels serve as the primary energy source in many industries, including shipping, which is the focus of this study. One of the measures proposed to tackle GHG emissions is the development of green shipping corridors - carbon-free shipping routes that require the transition to alternative fuels, which are gaining competitiveness. One of the reasons for that is carbon pricing, which taxes CO2 emissions. However, the lack of consensus on the most cost-advantageous alternative fuel in the long run results in the delay of the implementation of green shipping corridors. To make it more accessible for stakeholders to conduct an economic analysis of the various options, a framework to determine and minimize the costs of transitioning from fossil fuels to any alternative fuel is proposed, over the period of one voyage, considering the lost opportunity cost, the deployment cost of bunkering vessels at the necessary call ports, the cost of converting the vessel, the car-bon emissions tax cost, and the fuel cost. This will allow stakeholders to choose the most economical alternative fuel, accelerating the development of green shipping corridor initiatives. To validate the effectiveness of the framework, it was applied in a case study involving a shipowner seeking to transition from heavy fuel oil (HFO) to Ammonia, Hydrogen, Liquefied Natural Gas (LNG), or Methanol. This study faced limitations due to the unknown costs of installing bunkering vessels for Ammonia and Hydrogen. However, it evaluates the cost-effectiveness of alternative fuels, providing insights into their short-term economic viability. The results showed that Hydrogen is the most cost-advantageous fuel until a deployment cost per bunkering vessel of 1,990,285$ for a sailing speed of 22 knots and 2,190,171$ for a sailing speed of 18 knots is reached, after which LNG becomes the most economical option regardless of variations in the carbon tax. Moreover, a sensitivity analysis was conducted to determine the effects of variations in parameters, such as carbon tax, fuel prices and vessel conversion costs in the total cost of each fuel option. Results highlighted that even though HFO remains the most economical fuel option, even when considering a high increase in carbon tax, the cost gap between HFO and alternative fuels narrows significantly with the increase in carbon tax. Furthermore, the sailing speed impacts the fuels’ competitiveness, as the cost difference between HFO and alternative fuels decreases at higher speeds.
Formulating strategic problems with Systems Modeling Language
João Mendes, Augusto Carreira, Miguel Aleluia, J. Pedro Mendes
Journal of Enterprise Transformation, 2016
Prompted by difficulties inherent to causal analysis in problem formulation, and by a need for more formal and robust strategy and transformation design tools and frameworks, this article introduces a procedure for modeling strategic problems in the Systems Modeling Language (SysML). As a test bed for the procedure, we used the widely available Robin Hood strategic management case study. The modeling process fostered an enhanced understanding of the nature of the problem, and the resulting model proved rich and complex. The difficulties stemming from causal analysis were absent altogether, thus showing that SysML provides a good basis upon which to build a non-causal, systemic strategy and transformation design framework.
Liner service operational differentiation in container port terminals
Maritime Transportation and Harvesting of Sea Resources, 2016
A generic maritime transportation network model
A. Carreira, J. Mendes, C. Soares
Maritime Technology and Engineering Proceedings of Martech 2014 2nd International Conference on Maritime Technology and Engineering, 2015
The transport sector allows high possibilities for differentiation due to its structural factors; essentially, due to this possibility, different transport modes can carry out the same service. For this reason, this work assumes that the differentiation of the transport company is the business’s capacity to adapt its services to the real needs of clients (specialization focused on the shipper). Additionally, this work makes another assumption about the initial situation of the company: the business strategy (the establishment of a motorway of the sea) responds to the exploitation of a new transport service.

RECENT SCHOLAR PUBLICATIONS

Master in Maritime Logistics: An industry-driven design
M Sernaglia, AMP Carreira, HML Carvalho, PB Água, A Frias, ...
International Journal of Transport and Vehicle Engineering, 166-170 , 2023
2023
Citations: 2
Network-based Approach to the Competitiveness of Container Port Terminals
AMP Carreira
INSTITUTO SUPERIOR TÉCNICO , 2018
2018
Formulating strategic problems with Systems Modeling Language
J Mendes, A Carreira, M Aleluia, JP Mendes
Journal of Enterprise Transformation 6 (1), 23-38 , 2016
2016
Citations: 6
Liner service operational differentiation in container port terminals
GS Carreira
Maritime Transportation and Harvesting of Sea Resources 1, 129-136 , 2016
2016
A generic maritime transportation network model
A Carreira, JP Mendes, CG Soares
Maritime Technology and Engineering, 69-77 , 2014
2014
Citations: 1
RISCOS EMPRESARIAIS E ROBUSTEZ EM REDES
A Carreira, JP Mendes, CG Soares
Riscos, Segurança e Sustentabilidade, 77-92 , 2012
2012

MOST CITED SCHOLAR PUBLICATIONS

Formulating strategic problems with Systems Modeling Language
J Mendes, A Carreira, M Aleluia, JP Mendes
Journal of Enterprise Transformation 6 (1), 23-38 , 2016
2016
Citations: 6
Master in Maritime Logistics: An industry-driven design
M Sernaglia, AMP Carreira, HML Carvalho, PB Água, A Frias, ...
International Journal of Transport and Vehicle Engineering, 166-170 , 2023
2023
Citations: 2
A generic maritime transportation network model
A Carreira, JP Mendes, CG Soares
Maritime Technology and Engineering, 69-77 , 2014
2014
Citations: 1
Network-based Approach to the Competitiveness of Container Port Terminals
AMP Carreira
INSTITUTO SUPERIOR TÉCNICO , 2018
2018
Liner service operational differentiation in container port terminals
GS Carreira
Maritime Transportation and Harvesting of Sea Resources 1, 129-136 , 2016
2016
RISCOS EMPRESARIAIS E ROBUSTEZ EM REDES
A Carreira, JP Mendes, CG Soares
Riscos, Segurança e Sustentabilidade, 77-92 , 2012
2012