scholarly journals Alternative Fuels and Technologies for Short Sea Shipping

2020 ◽  
Vol 59 (1) ◽  
pp. 61-84
Author(s):  
David Sopta ◽  
Tomislav Bukša ◽  
Juraj Bukša ◽  
Ivan Peronja
Keyword(s):  
Environmental Protection ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Alternative Fuels ◽  
Maritime Transport ◽  
Short Sea Shipping ◽  
Ship Propulsion ◽  
Systematic Overview ◽  
Current State ◽  
Protection Technology

Awareness of the consequences of excessive greenhouse gas emissions in maritime transport has prompted research on the use of alternative fuels and technology, towards environmentally neutral ship propulsion, which has resulted in a number of possibilities. This review provides a systematic overview of the current state of use of ship propulsion and alternative options from the aspect of costs, infrastructure, regulations, availability, environmental protection, technology and the perspective of complete decarbonisation by 2050.

scholarly journals Estimation of the Non-Greenhouse Gas Emissions Inventory from Ships in the Port of Incheon

2020 ◽  
Vol 12 (19) ◽  
pp. 8231
Author(s):  
Hyangsook Lee ◽  
Dongjoo Park ◽  
Sangho Choo ◽  
Hoang T. Pham
Keyword(s):  
Air Pollution ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Alternative Fuels ◽  
Management Decision ◽  
Gas Emissions ◽  
Research Attention ◽  
Emissions Inventory ◽  
Management Platform ◽  
General Cargo

Nowadays, maritime air pollution is regarded as a severe threat to coastal communities’ health. Therefore, many policies to reduce air pollution have been established worldwide. Moreover, there has been a shift in policy and research attention from greenhouse gases, especially CO2, to other air pollutants. To address the current local environmental challenges, this research analyzes the non-greenhouse gas emissions inventory (CO, NOx, SOx, PM, VOC, and NH3) from ships in the second biggest port in Korea, the Port of Incheon (POI). A bottom-up activity-based methodology with real-time vessel activity data produced by the Vessel Traffic Service (VTS) is applied to obtain reliable estimations. NOx and SOx dominated the amount of emission emitted from ships. Tankers, general cargo ships, cruise ships, and container ships were identified as the highest sources of pollution. Based on the above results, this study discusses the need for long-term policies, such as the designation of a local emission control area (ECA) and the establishment of an emission management platform to reduce ship-source emissions. Furthermore, this study elucidates that significant emissions come from the docking process, ranging from 33.9% to 42.0% depending on the type of pollutant when only the auxiliary engines were being operated. Therefore, short-term solutions like applying exhausted gas cleaning systems, using on-shore power supplies, reducing docking time, or using greener alternative fuels (e.g., liquefied natural gas or biofuels) should be applied and motivated at the POI. These timely results could be useful for air quality management decision-making processes for local port operators and public agencies.

Standards als Steuerungsinstrumente

2015 ◽  
Vol 59 (1) ◽  
Author(s):  
Hannah Witting
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Gas Emissions ◽  
Carbon Footprints ◽  
Carbon Footprinting ◽  
The Past ◽  
Current State ◽  
Open Questions ◽  
Controlling Mechanism

Standards as a controlling mechanism: Methods and effects of carbon footprinting in the logistic sector. Carbon footprints describe the greenhouse gas emissions of predefined objects, such as products, companies, persons or transport units. Corresponding emission calculation standards have been developed and their application increased over the past decade. The article discusses this development, the current state of implementation and open questions regarding application and harmonization using the example of the logistic sector. Additionally, the author explores the question, how carbon footprints contribute to CO

scholarly journals Maritime Transport in a Life Cycle Perspective: How Fuels, Vessel Types, and Operational Profiles Influence Energy Demand and Greenhouse Gas Emissions

Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2739 ◽  
Author(s):  
Grusche J. Seithe ◽  
Alexandra Bonou ◽  
Dimitrios Giannopoulos ◽  
Chariklia A. Georgopoulou ◽  
Maria Founti
Keyword(s):  
Life Cycle ◽  
Supply Chains ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Energy Use ◽  
Fuel Oil ◽  
Maritime Transport ◽  
Heavy Fuel Oil ◽  
Gas Emissions ◽  
Fuel Supply

A “Well-to-Propeller” Life Cycle Assessment of maritime transport was performed with a European geographical focus. Four typical types of vessels with specific operational profiles were assessed: a container vessel and a tanker (both with 2-stroke engines), a passenger roll-on/roll-off (Ro-Pax) and a cruise vessel (both with 4-stroke engines). All main engines were dual fuel operated with Heavy Fuel Oil (HFO) or Liquefied Natural Gas (LNG). Alternative onshore and offshore fuel supply chains were considered. Primary energy use and greenhouse gas emissions were assessed. Raw material extraction was found to be the most impactful life cycle stage (~90% of total energy use). Regarding greenhouse gases, liquefaction was the key issue. When transitioning from HFO to LNG, the systems were mainly influenced by a reduction in cargo capacity due to bunkering requirements and methane slip, which depends on the fuel supply chain (onshore has 64% more slip than offshore) and the engine type (4-stroke engines have 20% more slip than 2-stroke engines). The combination of alternative fuel supply chains and specific operational profiles allowed for a complete system assessment. The results demonstrated that multiple opposing drivers affect the environmental performance of maritime transport, a useful insight towards establishing emission abatement strategies.

scholarly journals Challenges in Incorporating Electric Vehicles to Mitigate Greenhouse Gas Emissions

2020 ◽  
Author(s):  
Milad Zokaei Ashtiani
Keyword(s):  
Life Cycle ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Electric Vehicles ◽  
Alternative Fuels ◽  
Travel Demand ◽  
Past Century ◽  
Assessment Procedure ◽  
Gas Emissions ◽  
Transportation Sector

An indisputable fact about our planet is that its atmospheric temperature has risen dramatically during the past century. Combustion of fossil fuels and their subsequent greenhouse gas emissions are thought to be the main contributors to recent changes within the Earth’s ecosystem. The transportation sector and electricity generating power plants are each responsible for approximately one-third of these emissions. Shifting towards a cleaner and renewable resources to generate electricity is believed to omit a big portion of polluting substances. Improvements in vehicles’ fuel efficiency and the introduction of alternative fuels besides strategic plans to control travel demand are among the most promising approaches to alleviate emissions from the transportation sector. Recent technology advancements, however, drew much attention to the production and manufacturing of alternative fuel vehicles, electric vehicles in particular. Since these vehicles use electricity as part of or all their powertrain, assessing the amount of emissions they produce is closely tied to the cleanliness of the electricity source. In order for a valid comparison to be made between internal combustion and electric vehicles, hence, a life cycle assessment procedure needs to be followed from production stages to terminal life of vehicles. Involvement of numerous affecting factors during the lifetime of a vehicle on one hand, and the ambiguity in the exact source of electricity used to charge electric vehicles on the other hand bring about more complexities. The latter case is more commonly known as the marginal grid problem, which deals with how a combination of sources used to generate electricity can influence the life cycle emissions. There are also other concerns regarding the growth in fuel-efficient and electric vehicles. Transportation planners argue that new developments in the vehicle industry may attract more people to owning and driving cars. This phenomenon which is better known as a rebound effect not only will result in increased traffic congestion, but it can also outpace the environmental benefits from utilizing electric vehicles. Moreover, since fuel taxes comprise the majority of Highway Trust Funds, alternative ways to compensate for state and federal revenues should be devised. This paper is an attempt to review the existing literature to better elaborate on the role of the transportation sector in controlling climate change threats. More specifically, issues around the use of electric vehicles and how they can contribute to more environmentally friendly communities are discussed.

scholarly journals A Comparative Review of Alternative Fuels for the Maritime Sector: Economic, Technology, and Policy Challenges for Clean Energy Implementation

World ◽  
2021 ◽  
Vol 2 (4) ◽  
pp. 456-481
Author(s):  
Yifan Wang ◽  
Laurence A. Wright
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Alternative Fuels ◽  
Synthesis Method ◽  
Clean Energy ◽  
Maritime Transportation ◽  
Policy Framework ◽  
Emissions Reductions ◽  
Gas Emissions ◽  
Comparative Review

Global maritime transportation is responsible for around 3% of total anthropogenic greenhouse gas emissions and significant proportions of SOx, NOx, and PM emissions. Considering the predicted growth in shipping volumes to 2050, greenhouse gas emissions from ships must be cut by 75–85% per ton-mile to meet Paris Agreement goals. This study reviews the potential of a range of alternative fuels for decarbonisation in maritime. A systematic literature review and information synthesis method was applied to evaluate fuel characteristics, production pathways, utilization technologies, energy efficiency, lifecycle environmental performance, economic viability, and current applicable policies. Alternative fuels are essential to decarbonisation in international shipping. However, findings suggest there is no single route to deliver the required greenhouse gas emissions reductions. Emissions reductions vary widely depending on the production pathways of the fuel. Alternative fuels utilising a carbon-intensive production pathway will not provide decarbonisation, instead shifting emissions elsewhere in the supply chain. Ultimately, a system-wide perspective to creating an effective policy framework is required in order to promote the adoption of alternative propulsion technologies.

scholarly journals Multi-criteria prioritization of the renewable power plants in Australia using the fuzzy logic in decision-making method (FMCDM)

Clean Energy ◽  
2021 ◽  
Vol 6 (1) ◽  
pp. 780-798
Author(s):  
Amin Aryanfar ◽  
Aslan Gholami ◽  
Payam Ghorbannezhad ◽  
Bijan Yeganeh ◽  
Mahdi Pourgholi ◽  
...  
Keyword(s):  
Decision Making ◽  
Fuzzy Logic ◽  
Environmental Factors ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Power Plants ◽  
Future Scenario ◽  
Renewable Power ◽  
Current State ◽  
Payback Time

Abstract The presented study focused on developing an innovative decision-making framework to select the best renewable-power-plant technologies, considering comprehensive techno-economic and environmental variables. Due to the favourable conditions, Australia was selected as the case study. A fuzzy-logic method and analytical hierarchy process were applied to prioritize different renewable-energy power plants. The techno-economic factors included levelized cost of energy, initial cost, simple payback time, and operation and maintenance costs along with environmental factors including carbon payback time, energy payback time and greenhouse-gas emissions were used to rank the power plants. The results showed that the capital cost and simple payback time had the highest priority from an economic point of view. In comparison, greenhouse-gas emissions and carbon payback time were the dominant environmental factors. The analysis results provided economic and environmental priority tables for developing different power plants in the current state and a future scenario by 2030. The fuzzy results and pairwise composite matrix of alternatives indicated that the onshore wind, offshore wind, single-axis tracker polycrystalline photovoltaic, single-axis tracker monocrystalline photovoltaic, fix-tilted polycrystalline photovoltaic and fix-tilted monocrystalline photovoltaic scored the highest in the current state. In contrast, by 2030, the single-axis tracker photovoltaic power plants will be the best choice in the future scenario in Australia. Finally, the results were used and analysed to recommend and suggest several policy implementations and future research studies.

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