Magnesium Hydride: Investigating Its Capability to Maintain Stable Vapor Film
Author:
Skvorčinskienė Raminta1ORCID, Eimontas Justas1, Bašinskas Matas1, Vorotinskienė Lina1, Urbonavičius Marius2ORCID, Kiminaitė Ieva1ORCID, Maziukienė Monika1, Striūgas Nerijus1ORCID, Zakarauskas Kęstutis1, Makarevičius Vidas3ORCID
Affiliation:
1. Laboratory of Combustion Processes, Lithuanian Energy Institute, Breslaujos 3, LT-44403 Kaunas, Lithuania 2. Center for Hydrogen Energy Technologies, Lithuanian Energy Institute, Breslaujos 3, LT-44403 Kaunas, Lithuania 3. Laboratory of Materials Research and Testing, Lithuanian Energy Institute, Breslaujos 3, LT-44403 Kaunas, Lithuania
Abstract
In order to implement timely sustainability solutions, road transportation is gradually transitioning to electric power. However, the maritime sector faces challenges in finding ways to shift towards more sustainable fuel. From the perspective of long-distance shipping, electric transport is economically impractical. Therefore, alternative solutions or proposals contributing to the global reduction of pollutant gas emissions in maritime transport are vitally important. This investigation aims to find solutions that enhance the ecological efficiency of intercontinental cargo ships. In this study, an assessment of a magnesium hydride coating was conducted as it is a prospective coating capable of reducing hydrodynamic resistance to save fuel. Due to MgH2’s ability to release hydrogen at higher temperatures or during a reaction with water, it is expected that this could contribute to an enhancement of the Leidenfrost effect, maintaining a vapor layer on the surface. Samples prepared in situ via reactive magnetron sputtering were submitted to thermal analysis for dehydrogenation range evaluation and the experimental rig for critical (Leidenfrost) temperature identification. In conclusion, thermogravimetric (TG) analysis indicated that the volatile content, primarily hydrogen, in the sample reached approximately 13% by mass. The TG curve exhibited variations in MgH2 mass, with the most significant mass loss occurring at 300 °C. After conducting critical temperature experiments, the potential of MgO coating was observed to be greater than anticipated when compared to the main material, MgH2.
Funder
Research Council of Lithuania
Subject
Energy (miscellaneous),Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment,Electrical and Electronic Engineering,Control and Optimization,Engineering (miscellaneous),Building and Construction
Reference17 articles.
1. Eyring, V., Köhler, H.W., van Aardenne, J., and Lauer, A. (2005). Emissions from international shipping: 1. The last 50 years. J. Geophys.Res. Atmos., 110. 2. A study on the interaction among hull, engine and propeller during self-propulsion of a ship;Liu;Ocean. Eng.,2023 3. Passive Drag Reduction via Bionic Hull Coatings;Schrader;J. Ship Res.,2019 4. Jiang, B., Ma, Y., Wang, L., Guo, Z., Zhong, X., Wu, T., Liu, Y., and Wu, H. (2023). Thermal decomposition mechanism investigation of hyperbranched polyglycerols by TGA-FTIR-GC/MS techniques and ReaxFF reactive molecular dynamics simulations. Biomass Bioenergy, 168. 5. Extraordinary drag-reducing effect of a superhydrophobic coating on a macroscopic model ship at high speed;Dong;J. Mater. Chem. A,2013
|
|