Listar GI-SISTER - Artigos por autor "Lamas, M.I."
Mostrando ítems 1-20 de 29
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A New Theoretical Dynamic Analysis of Ship Rolling Motion Considering Navigational Parameters, Loading Conditions and Sea State Conditions
Pérez-Canosa, José M.; Orosa, José A.; Lamas, M.I.; Cartelle Barros, Juan José (MDPI, 2022)[Abstract] Despite the IMO’s efforts and the large quantity of research carried out over the years concerning the sudden loss of stability in fishing vessels, and even the damage done to merchant fleets due to cargo shifting, ... -
A new way to obtain climate files in areas with the presence of microclimates by applying the Sandia method: a Galician case study
Couce-Casanova, Antonio; Rodríguez-García, JuanDeDios; Lamas, M.I.; Orosa, José A. (MDPI, 2022-09-25) -
Analysis of the Pre-injection Configuration in a Marine Engine Through Several MCDM Techniques
Rodríguez, Carlos G.; Lamas, M.I.; Rodríguez-García, JuanDeDios; Caccia, Claudio (University of Zagreb Faculty of Mechanical Engineering and Naval Architecture, 2021)[Abstract] The present manuscript describes a computational model employed to characterize the performance and emissions of a commercial marine diesel engine. This model analyzes several pre-injection parameters, such as ... -
Analysis of the Pre-Injection System of a Marine Diesel Engine Through Multiple-Criteria Decision-Making and Artificial Neural Networks
Rodríguez, C.G.; Lamas, M.I.; Rodríguez-García, JuanDeDios; Abbas, A. (Mathematical Institute, Slovak Academy of Sciences, 2022-01-01)[Abstract] The present work proposes several pre-injection patterns to reduce nitrogen oxides in the Wärtsilä 6L 46 marine engine. A numerical model was carried out to characterise the emissions and consumption of the ... -
Application of residuals from purification of bivalve molluscs in Galician to facilitate marine ecosystem resiliency through artificial reefs with shells – One generation
Carral Couce, Luis; Lamas, M.I.; Buenhombre, José Luis Mier; Cartelle Barros, Juan José; Naya, Salvador; Tarrío-Saavedra, Javier (Elsevier, 2023-01-15)[Abstract] The seas and oceans of the planet provide a wide range of essential resources. However, marine ecosystems are undergoing severe degradation due to the unsustainable exploitation and consumption patterns of the ... -
Assessment of the Materials Employed in Green Artificial Reefs for the Galician Estuaries in Terms of Circular Economy
Carral Couce, Luis; Camba, C.; Lamas, M.I.; Rodríguez-Guerreiro, María J.; Cartelle Barros, Juan José (MDPI, 2020)[Abstract] To exploit marine resources in a sustainable way, efficient management systems must be used such as green artificial reefs (GARs). These reefs are mostly made up of renewable and organic materials. When adopting ... -
Configuration Methodology for a Green Variety Reef System (AR group) Based on Hydrodynamic Criteria – Application to the Ría de Ares-Betanzos
Carral Couce, Luis; Lamas, M.I.; Rodríguez-Guerreiro, María J.; Vargas, Andreina; Álvarez-Feal, José-Carlos; López, Iván; Carballo, Rodrigo (Elsevier, 2021-05-05)[Abstract] For the evolution and development of artificial reefs to attain the expected results, hydrodynamics is emerging as a key factor that must be taken analyzed in detail. In particular, thanks to the hydrodynamics ... -
Definition of an Artificial Reef Unit through Hydrodynamic and Structural (CFD and FEM) Models—Application to the Ares-Betanzos Estuary
Lamas, M.I.; Rodríguez-Guerreiro, María J.; Lamas Vigo, Javier; Ameneiros Rodríguez, Ismael; Veira Lorenzo, Ricardo; Carral Couce, Juan Carlos; Carral Couce, Luis (MDPI, 2022)[Abstract] The application of hydrodynamics to the definition of artificial reefs is of great interest since the positioning of the artificial reef modules on the sea floor alters the water velocity field, causing an ... -
Economic Feasibility of Floating Offshore Wind Farms Considering Near Future Wind Resources: Case Study of Iberian Coast and Bay of Biscay
Castro-Santos, Laura; DeCastro, Maite; Costoya, Xurxo; Filgueira-Vizoso, Almudena; Lamas, M.I.; Ribeiro, Américo; Dias, JM; Gómez-Gesteira, Moncho (MDPI, 2021-03)[Abstract] Wind energy resources are subject to changes in climate, so the use of wind energy density projections in the near future is essential to determine the viability and profitability of wind farms at particular ... -
Effect of multiple injection strategies on emissions and performance in the Wärtsilä 6L 46 marine engine. A numerical approach
Lamas, M.I.; Rodríguez-García, JuanDeDios; Castro-Santos, Laura; Carral Couce, Luis (Elsevier, 2019-01-01)[Abstract] The present paper proposes a Computational Fluid Dynamics model to analyze the operation cycle and exhaust gas composition in a four-stroke marine diesel engine, the Wärtsilä 6L 46. Once validated, the numerical ... -
Erosive Degradation Study of Concrete Augmented by Mussel Shells for Marine Construction
Camba, C.; Mier, José; Carral Couce, Luis; Lamas, M.I.; Álvarez-Feal, José-Carlos; Díaz-Díaz, Ana-María; Tarrío-Saavedra, Javier (MDPI, 2021-10)[Abstract] This work proposes a green material for artificial reefs to be placed in Galicia (northwest Spain) taking into account the principles of circular economy and sustainability of the ecosystem. New concrete ... -
Hydrodynamics of Biomimetic Marine Propulsion and Trends in Computational Simulations
Lamas, M.I.; Rodríguez, C.G. (MDPI, 2020-06)[Abstract] The aim of the present paper is to provide the state of the works in the field of hydrodynamics and computational simulations to analyze biomimetic marine propulsors. Over the last years, many researchers ... -
Internal Modifications to Optimize Pollution and Emissions of Internal Combustion Engines through Multiple-Criteria Decision-Making and Artificial Neural Networks
Lamas, M.I.; Telmo Miranda, Javier; Rebollido Lorenzo, José Manuel; Caccia, Claudio Giovanni (MDPI, 2021-12)[Abstract] The present work proposes several modifications to optimize both emissions and consumption in a commercial marine diesel engine. A numerical model was carried out to characterize the emissions and consumption ... -
Marine Engines Performance and Emissions [Editorial]
Lamas, M.I. (MDPI, 2021-03) -
Marine Engines Performance and Emissions II
Lamas, M.I. (MDPI, 2022-12-12) -
Multi-criteria analysis to determine the most appropriate fuel composition in an ammonia/diesel oil dual fuel engine
Rodríguez, Carlos G.; Lamas, M.I.; Rodríguez-García, JuanDeDios; Abbas, Amr (MDPI, 2023-03-24)[Abstract] The possibility to employ alternative fuels is gaining special interest in the marine sector. There are several suitable candidates for traditional fossil fuels substitution. Among them, ammonia is a promising ... -
NOₓ Reduction in Diesel-Hydrogen Engines Using Different Strategies of Ammonia Injection
Lamas, M.I.; Rodríguez, C.G. (MDPI, 2019-04)[Abstract] In order to reduce NOₓ emissions in internal combustion engines, the present work analyzes a measurement which consists of injecting ammonia directly into the combustion chamber. A commercial compression ignition ... -
Numerical Analysis of NOₓ Reduction Using Ammonia Injection and Comparison With Water Injection
Lamas, M.I.; Castro-Santos, Laura; Rodríguez, C.G. (MDPI, 2020)[Abstract] This work analyzes NOₓ reduction in a marine diesel engine using ammonia injection directly into the cylinder and compares this procedure with water injection. A numerical model based on the so-called inert ... -
Numerical and experimental analysis of the velocity field inside an artificial reef. Application to the Ares-Betanzos estuary
Santiago Caamaño, Lucía; Lamas, M.I.; Carballo, Rodrigo; López, I.; Cartelle Barros, Juan José; Carral Couce, Luis (MDPI, 2022-11-28)[Abstract]: The placement of artificial reef (AR) units on the seabed modifies the velocity field of the water, making the nutrients circulate properly and creating the necessary habitat for the settlement of the desired ... -
Numerical Model to Analyze the Physicochemical Mechanisms Involved in CO₂ Absorption by an Aqueous Ammonia Droplet
Lamas, M.I.; Rodríguez-García, JuanDeDios; Rebollido Lorenzo, José Manuel (MDPI, 2021-04)[Abstract] CO₂ is the main anthropogenic greenhouse gas and its reduction plays a decisive role in reducing global climate change. As a CO₂ elimination method, the present work is based on chemical absorption using aqueous ...