Article
Green & Sustainable Science & Technology
Araks Ekmekcioglu, Kaan Unlugencoglu, Ugur Bugra Celebi
Summary: This study calculates the emissions of various gases from an oceangoing container ship during a 37-day voyage in 2019, contributing to the formulation of more specific policies. The results indicate that reducing fuel consumption, using low-sulfur fuel, and optimizing port traffic can help reduce the environmental damage of maritime transportation.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2022)
Article
Green & Sustainable Science & Technology
Marwa Hannouf, Getachew Assefa, Ian Gates
Summary: Studies suggest that the oil sands industry in Canada needs to reduce its carbon footprint, but the specific threshold of carbon emissions intensity required is still unclear. Research for the first time uses a top-down approach based on planetary boundaries to identify the threshold of carbon emissions intensity needed to keep the industry within absolute limits, indicating the necessity for a rapid transition to a carbon-negative oil sands industry.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Management
ManWo Ng
Summary: This study extends and complements existing literature on liner shipping by analyzing ship deployment decisions in the presence of time windows at container ports. The study provides tight bounds on the number of deployable ships and allows for the extension of single-route shipping models to a system-wide level while controlling computational requirements.
JOURNAL OF THE OPERATIONAL RESEARCH SOCIETY
(2021)
Article
Engineering, Marine
Daozheng Huang, Yan Wang, Chuanzhong Yin
Summary: This study aims to find the optimal combination of measures to help container ship companies achieve carbon reduction targets. The results show that combination 6, which includes using a Waste Heat Recovery System (WHRS) and reducing the original speed by 5.0%, is the most suitable solution based on the selected parameter values. Sensitivity analyses reveal that using a WHRS is the optimal combination within the fluctuation range of the parameters.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Engineering, Marine
Nader R. Ammar, Ibrahim S. Seddiek
Summary: This study aims to determine the most effective and cost-efficient propulsion system for achieving green containerized shipping. A comparison of two mechanical propulsion systems and a hybrid system reveals that the hybrid system is the best option, with the lowest CO2 emission rate of 5.926 ton/TEU. It reduces NOx, SOx, and CO2 emissions by 52%, 63.7%, and 30.4% respectively, compared to the conventional system. From an economic perspective, the dual fuel-powered system is currently the most cost-effective choice, but the hybrid system is more advantageous for future regulations, with a levelized cost of energy and cost-effectiveness of 0.07 $/kWh and 21.9 $/ton, respectively.
Article
Chemistry, Multidisciplinary
Tomislav Rozic, Dora Naletina, Mateusz Zajac
Summary: In recent years, the stability of supply chains has been undermined due to various disruptions. The COVID-19 pandemic and the Russian invasion of Ukraine have deepened the global supply chain crisis. This paper focuses on the volatile freight rates in the maritime container industry caused by the COVID-19 pandemic and the Russian invasion of Ukraine, as well as the consequences of these crises on the changes in consumer goods prices in the European Union.
APPLIED SCIENCES-BASEL
(2022)
Article
Environmental Studies
George Kokosalakis, Anna Merika, Xakousti-Afroditi Merika
Summary: This paper investigates how the containership sector has responded to the IMO environmental regulation, identifying a strong positive bidirectional relationship between compliance probability and lower fuel consumption, indicating a restructuring towards a more environment friendly and fuel efficient sector.
Article
Food Science & Technology
Jinfeng Chang, Petr Havlik, David Leclere, Wim de Vries, Hugo Valin, Andre Deppermann, Tomoko Hasegawa, Michael Obersteiner
Summary: The study demonstrates that mobilizing all nitrogen mitigation options simultaneously can substantially reduce hunger, even while respecting regional nitrogen surplus boundaries, with supply-side measures being more important than demand-side efforts. In addition, international trade plays a crucial role in sustaining global food security under nitrogen boundary constraints.
Article
Oceanography
Jihong Chen, Chenglin Zhuang, Heng Xu, Lang Xu, Saimin Ye, Nelson Rangel-Buitrago
Summary: This article examines the collaborative management level evaluation of container shipping alliances, establishes an indicator system, and applies the fuzzy quality function deployment method to construct a collaborative management framework. Through a case study of the CKYHE alliance, it evaluates its collaborative management level and the management and operation levels of its members, proving the inevitability of alliance disintegration and restructuring.
OCEAN & COASTAL MANAGEMENT
(2022)
Article
Engineering, Marine
Dimas Angga Fakhri Muzhoffar, Kunihiro Hamada, Yujiro Wada, Yusuke Miyake, Shun Kawamura
Summary: The application of big data in maritime logistics has significant impact on ship development. This study developed a ship-planning support system based on big data, incorporating cost and greenhouse gas emissions considerations, providing optimization solutions for ship allocation and determination of ship specifications.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Ecology
Pierre Cariou, Ronald A. Halim, Bradley J. Rickard
Summary: This study examines the impact of a maritime bunker levy on ship-owner profits, trade flows, and emissions. Using standard and augmented gravity models with data from 2016, the research estimates the effects of changes in transit time, transit cost, and vessel speed on grain and soybean trade flows. The results suggest that a bunker levy of 50 USD per tonne of fuel or less does not affect the optimal speed of the vessel, contradicting theoretical models that predict a decrease in speed and carbon emissions with increased fuel costs. Bunker levies exceeding 100 USD per tonne may be necessary to reduce carbon emissions, particularly for agricultural commodities sensitive to trade costs and transport time.
ECOLOGICAL ECONOMICS
(2023)
Article
Green & Sustainable Science & Technology
Aneta Parsonsova, Ivo Machar
Summary: This study proposes a method for setting global and national climate change PB limits based on a GDP-adjusted model, indicating inadequate global efforts to reduce CO2 emissions and the urgency of decarbonization. It also highlights that some countries have already exceeded their emission budgets.
Article
Engineering, Marine
Kyunghwan Kim
Summary: Efforts are being made to reduce greenhouse gas emissions in all industries, including the shipping sector. Using shore power instead of auxiliary engines during berthing can help reduce emissions. However, the economic feasibility of shore power is a challenge for ship operators. This study conducted an economic analysis of shore power use for different sizes of container ships, taking into account fuel oil and electricity prices, carbon emission reduction benefits, and port incentives.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Emma Diaz-Ruiz-Navamuel, Andres Ortega Piris, Alfonso-Isidro Lopez-Diaz, Miguel A. Gutierrez, Manuel Andres Roiz, Jesus M. Oria Chaveli
Summary: This study aims to verify the impact of using automatic mooring systems with vacuum suction cups on the emissions of polluting gases in container ship traffic facilities. Two different calculation methods were used (Environmental Protection Agency and Environmental and Engineering Consultancy) to compare and obtain the reduction in emissions per twenty-foot equivalent unit during mooring maneuvers at these terminals. The paper concludes with a discussion on the reductions in emissions obtained and the benefits of installing automatic mooring systems with vacuum suction cups in commercial ports near population centers.
Article
Environmental Sciences
Till Strunge, Phil Renforth, Mijndert Van der Spek
Summary: Integrated techno-economic modelling suggests that the use of CO2 mineralisation in the cement industry can be profitable and reduce CO2-equivalent emissions by up to a third. This method requires the resulting products to be used in construction and meet the eligibility for emission certificates. The transport of minerals and the composition of the products are also crucial factors.
COMMUNICATIONS EARTH & ENVIRONMENT
(2022)
Article
Chemistry, Multidisciplinary
J. D. Medrano-Garcia, R. Ruiz-Femenia, J. A. Caballero
JOURNAL OF CO2 UTILIZATION
(2017)
Article
Chemistry, Multidisciplinary
J. D. Medrano-Garcia, R. Ruiz-Femenia, J. A. Caballero
JOURNAL OF CO2 UTILIZATION
(2019)
Article
Chemistry, Multidisciplinary
J. D. Medrano-Garcia, J. Javaloyes-Anton, D. Vazquez, R. Ruiz-Femenia, J. A. Caballero
Summary: DMC is gaining popularity for its environmentally friendly properties and potential to replace more toxic chemicals. The ethylene carbonate transesterification is a CO2 consuming process, but the high emitting synthesis of EC precursors hinders its environmental capabilities. Methanol oxycarbonylation can indirectly utilize greenhouse gases, reducing costs and emissions.
JOURNAL OF CO2 UTILIZATION
(2021)
Article
Electrochemistry
Mayank Sabharwal, Margarita Charalambous, Tim Doerenkamp, Shinya Nagashima, Federica Marone, Felix N. Buechi, Jens Eller
Summary: Understanding water dynamics during sub-zero operation of polymer electrolyte fuel cells is crucial for optimizing materials and operating strategies to achieve successful freeze starts. Increasing feed gas humidity led to decreased electrochemical performance. Imaging results showed that water distribution during freeze starts was primarily limited to the catalyst layer and membrane.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Juan D. Medrano-Garcia, Margarita A. Charalambous, Gonzalo Guillen-Gosalbez
Summary: Electro-fuels are considered a promising alternative to fossil fuels in the transport sector. This study evaluates the environmental and economic impact of Fischer-Tropsch electro-diesel produced from renewable sources and captured CO2. The results show that while this production method reduces carbon emissions, it is cost-prohibitive and raises concerns about environmental impacts.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Dario Faust Akl, Georgios Giannakakis, Andrea Ruiz-Ferrando, Mikhail Agrachev, Juan D. Medrano-Garcia, Gonzalo Guillen-Gosalbez, Gunnar Jeschke, Adam H. Clark, Olga V. Safonova, Sharon Mitchell, Nuria Lopez, Javier Perez-Ramirez
Summary: Copper catalysts are promising for Hg-free VCM production, but the optimal architecture at the nanoscale is not well understood. This study modifies the metal precursor and annealing temperature to prepare copper nanoparticles or single atoms on an unmodified carbon support. The performance of all materials converges to the stable VCM productivity of the single-atom catalyst. Advanced characterization techniques uncover a reaction-induced formation of low-valent, single atom Cu(I)Cl site motif, regardless of the initial nanostructure. The study highlights the sustainability of Cu-based catalysts for VCM production.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Salvatore De Angelis, Tobias Schuler, Margarita A. Charalambous, Federica Marone, Thomas J. Schmidt, Felix N. Buchi
Summary: This study elucidates the complex two-phase flow developing in polymer electrolyte water electrolysis via operando X-ray tomographic microscopy, highlighting key factors influencing oxygen pathways. By analyzing pore and water network size distributions, the study reveals the variations of oxygen saturation at different current densities, providing possible design guidelines for future better-performing PTLs.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Proceedings Paper
Computer Science, Interdisciplinary Applications
Juan Javaloyes-Anton, Daniel Vazquez, Juan D. Medrano-Garcia, José A. Caballero
29TH EUROPEAN SYMPOSIUM ON COMPUTER AIDED PROCESS ENGINEERING, PT A
(2019)
Proceedings Paper
Computer Science, Interdisciplinary Applications
Juan D. Medrano-Garcia, Ruben Ruiz-Femenia, Jose A. Caballero
29TH EUROPEAN SYMPOSIUM ON COMPUTER AIDED PROCESS ENGINEERING, PT A
(2019)
Proceedings Paper
Engineering, Environmental
Daniel Vazquez, Juan Javaloyes-Anton, Juan D. Medrano-Garcia, Ruben Ruiz-Femenia, Jose A. Caballero
28TH EUROPEAN SYMPOSIUM ON COMPUTER AIDED PROCESS ENGINEERING
(2018)
Proceedings Paper
Engineering, Environmental
Juan D. Medrano-Garcia, Ruben Ruiz-Femenia, Jose A. Caballero
28TH EUROPEAN SYMPOSIUM ON COMPUTER AIDED PROCESS ENGINEERING
(2018)
Proceedings Paper
Engineering, Chemical
Juan D. Medrano, Ruben Ruiz-Femenia, Jose A. Caballero
27TH EUROPEAN SYMPOSIUM ON COMPUTER AIDED PROCESS ENGINEERING, PT A
(2017)