Well to tank and tank to wake emissions of ammonia fuel based on varied production
Contributing person | Mujeeb Ahmed Mughadar Palliparambil | |
Contributing person | Ana Mesbahi | |
Contributing person | Hayoung Jang | |
Documentation of the data | With the given quantity of ammonia fuel (under different production pathways), the environmental impact in different categories can be calculated by: GWP = M * (EFW_tT +EFT_tW) Where: M is the mass of ammonia in kg; EFW_tT is the well-to-tank emission factor in kg indicative emission per kg ammonia; EFT_tW is the tank-to-wake emission factor in kg indicative emission per kg ammonia | |
References to related material | NH3CRAFT Deliverable 10.1 | |
Description of the data | These pathways of producing ammonia differ in their energy sources and carbon management strategies, affecting the overall environmental impact. The dataset indicates the emission factors for various types of ammonia fuel, combining all the data collected. Unlike fossil fuels, ammonia is a carbon-free molecule, meaning that when it is burned, it does not directly emit CO2. However, ammonia combustion can produce other pollutants, such as NOx, which are harmful to the environment and human health. Advanced combustion technologies, such as selective catalytic reduction (SCR) systems, can be employed to mitigate NOx emissions, reducing their impact significantly in order to meet IMO Tier III NOx emission regulations: • It is assumed in this study sufficient measures will be adopted in order to meet this regulation so that the NOx emission can be estimated based on the target emission level of 2g/kWh. • Additionally, if ammonia leaks or is unintentionally released, it can contribute to air pollution and pose risks due to its toxicity. Subject to data availability on ammonia slip from ammonia engines (which will be released in the near future) and considering a safe design, ammonia release is not taken into account. Overall, ammonia’s TtW emissions are considered relatively low in terms of GHGs compared to conventional fuels, but effective Nox management and safety measures are crucial for minimizing its environmental footprint during use. One of the benefits of ammonia as a marine fuel is that it does not produce SOx or PM emissions during combustion. The normalised target levels for emissions are included in the dataset. The environmental potentials of the emissions presented along with their corresponding emission indicators, are summarised in the dataset. The key indicator emissions for GWP, AP, EP and POCP are CO2, SO2, PO43- and C2H4 respectively. Using the normalised emission quantities and the environmental potentials of each emission, the dataset presents the normalised tank-to-wake emission factors for ammonia in terms of GWP, AP, EP and POCP. | |
Type of the data | Dataset | |
Total size of the dataset | 6054 | |
Author | Wang, Haibin | |
Upload date | 2025-08-26T13:27:40Z | |
Publication date | 2025-08-26T13:27:40Z | |
Data of data creation | 2025-02-26 | |
Publication date | 2025-08-26 | |
Abstract of the dataset | The well-to-tank (WtT) emissions of ammonia cover the full range of activities from raw material extraction (the "well") through production, transportation, and storage onshore facilities, up to the point where ammonia is ready for use (the "tank"). These emissions vary significantly depending on the production pathway—whether brown, blue, or green ammonia. The tank-to-wake (TtW) emissions of ammonia refer to the environmental impact that occurs during the use of ammonia as a fuel, specifically from the point it leaves the onboard storage tank to its combustion or utilization in an engine. The dataset presented here comprised Global Warming Potential (GWP), Acidification Potential (AP), Eutrophication Potential (EP), and Photochemical Ozone Creation Potential (POCP) factors obtained from the LCA study. | |
Public reference to this page | https://opara.zih.tu-dresden.de/handle/123456789/1494 | |
Public reference to this page | https://doi.org/10.25532/OPARA-857 | |
Publisher | Technische Universität Dresden | |
Licence | Attribution 4.0 International | en |
URI of the licence text | http://creativecommons.org/licenses/by/4.0/ | |
Specification of the discipline(s) | 4 | |
Title of the dataset | Well to tank and tank to wake emissions of ammonia fuel based on varied production | |
Research instruments | Literature review | |
Project abstract | Waterborne transport currently accounts for a quarter of the European Union’s (EU) greenhouse gas (GHG) emissions and this figure continues to rise as demand grows. European Green Deal Strategy seeks for a 90% reduction in emissions by 2050 through the introduction of more sustainable, affordable, accessible, healthier and cleaner alternatives. Analyzing the air emissions caused at a mode level, waterborne transport occupies by far the largest part of cargo transport, and accounts for 13% of GHG emissions in the EU. A drastic course of action will need to be deployed so as emissions from waterborne transport start to decline. The NH3CRAFT project develops a next generation sustainable, commercially attractive and safe technology for high-volume storage and transportation of ammonia as fuel on-board ships. The process will be realized by developing new design methodology that will offer the feasibility of 1,000 cubic meter storage of ammonia (NH3) in liquid form at a pressure of 10 bar and demonstrating it on a 31,000 deadweight ton multi-purpose vessel. In addition, for ensuring the wider applicability and refinement of the developed methodology, five (5) different type of vessels and corresponding fuel-storage tanks concepts will be studied and documented. | |
Public project website(s) | https://www.nh3craft.com/ | |
Project title | NH3CRAFT: Safe and Efficient Storage of Ammonia within Ships |
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