A5005438709- Energy Efficiency and Management
- Building Energy and Comfort Optimization
- Metal Alloys Wear and Properties
- Maritime Transport Emissions and Efficiency
- Mechanical stress and fatigue analysis
- Thermal and Kinetic Analysis
- Digital Transformation in Industry
- Metal-Organic Frameworks: Synthesis and Applications
- Ship Hydrodynamics and Maneuverability
- Advanced Statistical Process Monitoring
- Urban Heat Island Mitigation
- Polymer Science and PVC
- Metallurgy and Material Forming
- Anomaly Detection Techniques and Applications
- Advanced Statistical Methods and Models
- Solar Thermal and Photovoltaic Systems
- Thermal Expansion and Ionic Conductivity
- Smart Parking Systems Research
- Lubricants and Their Additives
- Electric Power Systems and Control
- Telecommunications and Broadcasting Technologies
- Fluid Dynamics and Thin Films
- Polymer Nanocomposite Synthesis and Irradiation
- Air Quality Monitoring and Forecasting
- Capital Investment and Risk Analysis
Universidade da Coruña
2009-2024
SINTEF
2023
European Synchrotron Radiation Facility
2023
Norwegian University of Science and Technology
2023
Energy efficiency has become increasingly relevant in the current economic and environmental situations. This paper aims to create a map of state art energy on marine sector, both scale individual ships entire industry. The first point interest will be an examination regulatory framework shipping sector regards efficiency. Next there are procedures implemented with aim diminishing their consumption emissions. These measures range from modifications design operational practices. Following...
This study proposes a control chart based on functional data to detect anomalies and estimate the normal output of industrial processes services such as those related energy efficiency domain. Companies providing statistical consultancy in fields efficiency; heating, ventilation air conditioning (HVAC); installation control; big for buildings, have been striving solve problem automatic anomaly detection buildings controlled by sensors. Given nature critical quality (CTQ) variables, this...
The present work proposes a design for solar thermal collectors and also numerical simulation analysis procedure to evaluate the collector performance. performance of this is compared with other two commercial ones by observing both modeling study experimental test results. Benefits using corrugated parallel approach, in terms yield, are shown applying new alternative approach modeling. A better observed collector, which provides higher yield an energy-absorbing surface. Moreover, proposed...
ABSTRACT Thermal stability in nonoxidizing atmosphere of a polyetherimide (PEI) is investigated by thermogravimetry (TG). It observed that thermal degradation this product consists two overlapping processes, which are conveniently separated fitting the TG curves to mixtures generalized logistic functions. Thus, each process represented single function. The analysis parameter values obtained for main different isothermal and heating ramp conditions allows obtain insightful kinetic parameters...
This article aims to address an existing research gap in the study of most widely used mathematical procedures field automatic control energy-sensitive industrial processes. In these types processes, as is case cold storage food sector or pharmaceutical industry, applying energy efficiency measures very risky. because margin variation temperature processes small, since product be manufactured preserved sensitive. where developments Internet Things showcase their usefulness they allow...
In spite of the many studies performed, there is not yet a kinetic model to predict thermal degradation cellulose in isothermal and nonisothermal conditions for full extent conversion.A proposed by authors was tested on non-oxidising thermogravimetric data.The method consisted initially fitting several non-isothermal curves, then obtaining critical temperature an energy barrier from set fittings that resulted different experimental conditions.While temperature, approximately 226 °C,...
Today, ≈20% of the electric consumption is devoted to refrigeration; while, ≈50% final energy dedicated heating applications. In this scenario, many cooling devices and heat-pumps are transitioning toward use CO
In the present work, we analyze influence of designer’s choice values for human metabolic index (met) and insulation by clothing (clo) that can be selected within ISO 7730 calculation energy demand buildings. To this aim, first numerically modeled, using TRNSYS, two buildings in different countries climatologies. Then, consistently validated our simulations predicting indoor temperatures comparing them with measured data. After that, both was obtained. Subsequently, variability set-point...
The prediction of energy savings and indoor air quality resulting from the implementation rehabilitation measures for efficiency in residential buildings is paramount to invest right technology optimize available resources. In this paper, we propose a new methodology, based on actual data collection, quickly effectively assess housings, considering variables such as customs occupants, regulations constructive typology. effect corresponding reforms carried out four homes built at different...
Energy optimization in cold food storage processes is a complex issue, as many variables have to be taken into consideration, according the nature of stored. In addition, energy requires exhaustive supervision, especially cooling temperatures different types food, refrigeration essential for maintaining optimum storage, minimizing product losses. The goal this study present use digitization process carry out control real time so that, with reasonable investment, quality maintained and...
We present a statistical analysis of correlations between carbon dioxide concentration and energy consumption in workplaces, with the goal enabling its eventual programming platforms In Cloud for improving management enhancing automation control service sector industry. A low-cost system is used to measure transmit data buildings information can be analyzed by any remote device. The study includes measured during one year two offices located at Sada (A Coruña, Spain) Clayton (Panama). linear...
In the context of energy efficient lighting, we present a mathematical study heating and cooling processes common type luminaires, consisting single light-emitting diode source in thermal contact with an aluminum passive heat sink. First, stationary temperature distributions by addressing appropriate system partial differential equations commercial finite element solver. Then, temporal evolution chip find that it is well approximated fractional derivative generalization Newton’s law. The...
Maritime transport is the most widely used means of transporting goods, and forecasts indicate that it will continue to grow in coming years, which why IMO regulating energy efficiency emissions from maritime with exhaustive monitoring. The measure during operation on a ship Energy Efficiency Operational Indicator (EEOI); however, difficulty obtaining references for this indicator, together great variability exists between shipowners when choosing terms such as “cargo transported”, among...
This study deals with the wear experienced in welded joins for pipelines. Its aim is to minimize problems caused by this wear. An analysis carried out on tribological behaviour of three crucial areas within welding: base metal, heat affected zone and weld bead itself. The differences mechanical properties between these are evaluated. Moreover, various alternatives welding process proposed an effort improve overall join.
The aim of this work is to propose different statistical and machine learning methodologies for identifying anomalies control the quality energy efficiency hygrothermal comfort in buildings.Companies focused on sector buildings are interested tools automate consumption ensure Heat Ventilation Air Conditioning (HVAC) installations.Consequently, a methodology based application Local Correlation Integral (LOCI) anomaly detection technique has been proposed.In addition, most critical variables...
Mediante la adición de boro al metal líquido, bien en forma metálica o bórax, ferroboro, carburo boruro cálcico, se pueden obtener fundiciones grafito esferoidal sin necesidad inoculantes especiales. Estas estado bruto colada presentan una matriz perlítica con más menos que suele estar orlado ferrita formando ojos buey. Por tratamiento térmico normalizado, consigue eliminar orla ferrítica y tener enteramente perlítica. recocido, puede por temple revenido martensita revenida. En el presente...
This work studies the behaviour of welding joints under abrasive wear in A355 Gr. P11 steel pipes carrying liquids at high temperatures. Various processes were tested on different an effort to choose one that gave best response. For this purpose, a pin-on-disk tribometer was used 200°C simulate service conditions pipes. The tests carried out by pressing hard chromium-plated pin, with diameter 4 mm and hardness about 775 HV, specimens order measure their mass loss friction coefficient three...
The purpose of this work is to investigate the effect environmental variables on electric energy expenditure a typical surface warship. Studies with similar objectives are much more frequent for merchant ships, but warship operations have peculiarities that will be emphasised. In particular, they spend large fractions their life cycle at port, during which vessel remains active. First, discussion embarked systems presented, pointing out importance auxiliary and, in heating, ventilation and...