Raw data from the operational modes demonstration of storage tanks and auxiliary systems for ships burning ammonia as fuel

Markakis, Nikolaos

Raw data from the operational modes demonstration of storage tanks and auxiliary systems for ships burning ammonia as fuel

datacite.contributor datacite.contributor	Konstantinos Sykaras
datacite.contributor datacite.contributor	Alexandros Giannakis
References to related material datacite.relatedItem.IsSupplementTo	NH3CRAFT Deliverable D6.4
Description of the data datacite.resourceType	The dataset includes multiple types of data, captured from various sensors and instruments connected to Programmable Logic Controllers (PLCs). These devices include flowmeters, valves, pumps, and tank instrumentation. The flowmeters record the liquid flow rate during the transfer process, while the valves provide data on their operational status, including whether they are open or closed. Pumps contribute performance data, including flow and operational status (on/off). The tank instrumentation includes sensors that measure temperature, filling levels, and pressure. Alarm signals are also recorded to capture high and low levels that arise during the transfer process. The PLCs serve as the central controllers for the data acquisition, collecting and transmitting the measurements to the industrial PC (IPC) every 10 seconds. The IPC aggregates this data in real-time and stores it in a structured format for later analysis. Each data point is time-stamped to allow for accurate tracking and comparison of measurements over time. Once collected, the data is stored in a central cloud-based storage system. The dataset includes continuous time-series data for each parameter, enabling detailed analysis of the transfer process. Parameters such as flow rate, tank pressure, liquid temperature, and filling levels are stored in separate columns for each timestamp, ensuring that all variables are linked to the corresponding time and operational conditions. Documentation of the data: Data Assumptions and Conditions: • Data was recorded every 10 seconds during the live demonstration, capturing key operational parameters. This frequent sampling interval ensures a detailed representation of the system’s performance throughout the transfer process and related operational phases. • The dataset includes the complete range of operations during the live demonstration, encompassing both normal operational phases and engineering tests conducted during the installation and system calibration. Any missing or anomalous data points are assumed to result from communication interruptions, or controlled testing conditions during calibration. Overall, the dataset is considered comprehensive for the operational conditions under review. Recorded Variables: timestamp: The precise time at which data was recorded. FM1.FLW.M3H: Flow rate of the liquid being transferred. FM2.FLW.M3H: Flow rate of the liquid being transferred (from MC3 to MU2). FCV1.PERC: Percentage of flow control valve 1. FCV2.PERC: Percentage of flow control valve 2. MU2.HIGH.LEV.98.ALARM: Alarm triggered when the liquid level in MU2 drops below 98%. CC1.LEV: Liquid level in CC1. CC1.PRES: Pressure in CC1. CC1.TEMP: Temperature in CC1. MC3.LEV: Liquid level in MC3. MC3.TEMP: Temperature in MC3. MC3.PRES: Pressure in MC3. MC4.LEV: Liquid level in MC4. PP12.RUN: Pump 12 operational status. PP12.ALARM: Alarm status for pump 12. NFS33.OPEN: Valve NFS33 status (open). NFS33.CLOSE: Valve NFS33 status (closed). NFS34.OPEN: Valve NFS34 status (open). NFS34.CLOSE: Valve NFS34 status (closed). MU2.LEV: Liquid level in MU2. Operational mode 1: MU2-> MC3 Time step: 2025/05/14 10:44:40 to 2025/05/14 10:48:50 In this mode, liquid is transferred from MU2 to MC3. The flow rate is continuously monitored by the flowmeter (FM1.FLW.M3H), recording the volume of liquid being transferred per unit of time. The flow control valve (FCV1.PERC) adjusts to regulate the flow rate, and its operational status is tracked throughout the transfer process. As the liquid moves into MC3, the liquid level in MU2 decreases, and when it goes below the 98% level, the MU2.HIGH.LEV.98.ALARM is triggered. In parallel, the liquid level in MC3 (MC3.LEV) increases, and the temperature in MC3 (MC3.TEMP) reflects no change in thermal conditions due to the outflow of liquid. The status of the pump (PP12.RUN) is tracked to ensure it is running correctly, and any alarms (PP12.ALARM) are raised if an issue occurs. Operational mode 2: MU2-> CC1 with Low pressure pump Time step: 2025/05/14 13:06:20 to 2025/05/14 13:15:20 In this mode, liquid is transferred from MU2 to CC1. The process is initiated by opening the NFS34 valve (NFS34.OPEN), allowing liquid to flow from MU2 into CC1. The flow rate is continuously monitored by the flowmeter (FM1.FLW.M3H), recording the volume of liquid being transferred per unit of time. The flow control valve (FCV1.PERC) adjusts to regulate the flow rate, and its operational status is tracked throughout the transfer process. As the liquid moves into CC1, the liquid level in CC1 (CC1.LEV) increases, while the pressure in the tank (CC1.PRES) also rises due to the incoming liquid. Temperature changes in CC1 (CC1.TEMP) are monitored to ensure the system operates within safe thermal parameters. The status of the pump (PP12.RUN) is also tracked to ensure it is running correctly, and any alarms (PP12.ALARM) are raised if an issue occurs. The NFS34 valve status (NFS34.CLOSE) is continuously checked to ensure the valve is open during the transfer and properly closed afterward, maintaining the integrity of the system. The flow control valve percentage (FCV1.PERC) is dynamically adjusted to ensure the desired flow rate is maintained during the entire process, helping to stabilize the pressure and liquid level in CC1. This mode captures key operational data, allowing for performance monitoring and ensuring the transfer occurs within predefined parameters, preventing over-pressurization or other system failures. Operational mode 3: MU2&CC1-> MC4 Time step: 2025/05/14 13:30:20 to 2025/05/14 13:41:30 In this mode, liquid is transferred from both MU2 and CC1 to MU4. The process begins with the NFS33 and NFS34 valves being open (NFS33.OPEN, NFS34.OPEN), allowing the liquid from MU2 and CC1 to flow into MC4. The flow rate is continuously monitored by the flowmeter (FM1.FLW.M3H), recording the volume of liquid being transferred per unit of time. The flow control valve (FCV1.PERC) is adjusted to regulate the flow rate, ensuring proper flow management throughout the transfer process. As the liquid is transferred, the pressure in CC1 (CC1.PRES) drops due to the outflow of liquid. Meanwhile, the liquid level in MC4 (MC4.LEV) increases, reflecting the inflow from both MU2 and CC1. The flow control valve (FCV1.PERC) ensures that the desired flow rate is maintained, dynamically adjusting as necessary to stabilize the liquid levels in the tanks. The pump PP1.2 is running (PP12.RUN) throughout the transfer, ensuring continuous liquid movement. No alarms (PP12.ALARM) were triggered during this process, confirming that the system operated without any issues. Operational mode 4: MC3-> MU2 Time step: 2025/05/14 14:00:40 to 2025/05/14 14:05:50 In this mode, liquid is transferred from MC3 to MU2. The flow rate is continuously monitored by the flowmeter (FM2.FLW.M3H), recording the volume of liquid being transferred per unit of time. The flow control valve (FCV2.PERC) adjusts to regulate the flow rate, and its operational status is tracked throughout the transfer process. As the liquid moves into MU2, the liquid level in MU2 (MU2.LEV) increases. Simultaneously, the pressure in MC3 (MC3.PRES) decreases as the liquid is transferred out of the tank. The flow control valve (FCV2.PERC) is dynamically adjusted to ensure the desired flow rate is maintained during the entire process. The OXY1.PERC sensor continuously recorded normal values throughout the operation, providing ongoing measurements of the oxygen concentration in the system to ensure safe conditions were maintained.
Type of the data datacite.resourceTypeGeneral	Dataset
Total size of the dataset datacite.size	266761
Author dc.contributor.author	Markakis, Nikolaos
Upload date dc.date.accessioned	2025-06-12T13:12:26Z
Publication date dc.date.available	2025-06-12T13:12:26Z
Data of data creation dc.date.created	2025-05
Publication date dc.date.issued	2025-06-12
Abstract of the dataset dc.description.abstract	This dataset contains raw live monitoring data from the final demonstration of the NH3CRAFT project, during which various operational modes were tested. The focus was on monitoring the transfer of ammonia between tanks and evaluating the performance of associated systems, including flowmeters, valves, pumps, and key tank instrumentation such as temperature, pressure, and filling levels. The onshore demonstration involved three metallic tanks (MU1, MU2, and MC3) with capacities of 290, 145, and 155 m³, respectively, a containerized metallic tank (MC4, 20 m³), and a container holding eight composite tanks (CC1 to CC8) with a total capacity of 11 m³. Data were acquired through digital and analog signals from field instruments connected to Programmable Logic Controllers (PLCs), which interfaced with an industrial PC for real-time monitoring. The dataset demonstrates stable system performance during ammonia transfer operations and serves as a valuable resource for assessing system reliability, safety, and efficiency in ammonia storage applications, supporting the broader objectives of the NH3CRAFT project.
Public reference to this page dc.identifier.uri	https://opara.zih.tu-dresden.de/handle/123456789/1509
Public reference to this page dc.identifier.uri	https://doi.org/10.25532/OPARA-866
Publisher dc.publisher	Technische Universität Dresden
Licence dc.rights	Attribution 4.0 International	en
URI of the licence text dc.rights.uri	http://creativecommons.org/licenses/by/4.0/
Specification of the discipline(s) dc.subject.classification	4
Title of the dataset dc.title	Raw data from the operational modes demonstration of storage tanks and auxiliary systems for ships burning ammonia as fuel
Research instruments opara.descriptionInstrument	List of sesnors provided as a seperate file
Software opara.descriptionSoftware.ResourceProduction	Shipify (Powered by Oceanly)
Project abstract opara.project.description	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) opara.project.publicReference	https://www.nh3craft.com/
Project title opara.project.title	NH3CRAFT: Safe and Efficient Storage of Ammonia within Ships