Contribution of renewable energy sources to electricity production in the La Rioja Autonomous Community, Spain. A review

González, Luis Español; Lizarraga, José María Sala; Tabarés, José Luis Míguez; Ochoa, Luis María López

doi:10.1016/j.rser.2005.09.002

Cited by 15 publications

(3 citation statements)

References 4 publications

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“…We are currently experiencing a scenario of continuous growth in energy consumption on a global scale, leading to greater and progressively increasing demand which needs to be satisfied [1][2][3][4], while maintaining the quality and reliability of the system [5][6][7]. Energy generation from conventional sources, such as coal and oil contributes to an increase in pollution and global warming [8].…”

Section: Introductionmentioning

confidence: 99%

Methodology for Detecting Malfunctions and Evaluating the Maintenance Effectiveness in Wind Turbine Generator Bearings Using Generic versus Specific Models from SCADA Data

et al. 2018

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This article offers reasons to defend the use of generic behavior models as opposed to specific models in applications to determine component degradation. The term generic models refers to models based on operating data from various units, whereas specific models are calculated using operating data taken from a single unit. Moreover, generic models, used in combination with a status indicator, show excellent capacity for detecting anomalies in the equipment and for evaluating the effectiveness of the maintenance actions, resulting in lower development and maintenance costs for the operating firm. Artificial neural networks and moving means were used to calculate the degradation indicators, based on the remainders in the model. The models were developed from operating data from fourteen wind turbines monitored over several years, and applied to the detection of faults in the bearings on the non-drive end of the generator. The use of generic models may not be recommendable for detecting faults in all cases, and the suitability will depend greatly on the context of the methodology developed to detect each type of fault, according to the element causing the fault and the fault mode, since each methodology requires a greater or lesser degree of precision in the model.

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Section: Introductionmentioning

confidence: 99%

Methodology for Detecting Malfunctions and Evaluating the Maintenance Effectiveness in Wind Turbine Generator Bearings Using Generic versus Specific Models from SCADA Data

et al. 2018

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“…There are many feasibility studies either under way or completed on the use of biomass in electricity generation, as one of its numerous applications. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] This paper sets out to discuss the strategic and technological problems of converting the chemical energy in biomass into electricity through two different technologies: combustion and gasification.…”

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confidence: 99%

“…Specifically, CEMA is involved in the operation of several landfill degasification plants and facilities for the energy valorisation of slurries. It is currently at the building stage for Spain's first hybrid solar thermal power plant with woody biomass.University Professor in the Field of Thermal Engines and MachineryUniversity of La Rioja Co-author of the book "Plantas de Valorizaci on Energ etica de Biomasa," 37 lead researcher and collaborator in several research projects on biomass, as well as author/co-author of numerous scientific papers on the subject 14,15,[38][39][40][41][42][43][44][45]. …”

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confidence: 99%

Biomass gasification or combustion for generating electricity in Spain: Review of its current situation according to the opinion of specialists in the field

Ruiz

Juárez

Morales

et al. 2013

Journal of Renewable and Sustainable Energy

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This paper seeks to set out the problems of biomass-based electricity generation according to the opinions of specialists in the sector with considerable experience both in the undertaking of projects involving the management and operation of facilities, and in research projects involving combustion and gasification technologies. The aim is to analyse both technologies and decide which is the more suitable and in what circumstances, and to describe the technological and circumstantial problems each one currently faces. In general, it is stressed that these two technologies are still in their infancy, and they require major efforts in research, although the first fruits are already being gathered for each one at an appropriate scale. Some experts recommend using the gasification technique in plants with an installed electric power of between 0.5 and 2 MWe, while in plants between 2 and 10 MWe combustion is considered to be more reliable. A key factor in the viability of both types of facilities is the need to increase operating times. The estimated requirement is 7000 to 8000 operating hours, which is well above the current figure. A common problem with both technologies is biomass logistics. This is a factor that needs to be taken very much into account when conducting a feasibility study on a facility.

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Influence of large and highly perforated fired-clay bricks in the improvement of the equivalent thermal transmittance of single-leaf masonry walls

Morales

Juárez

2015

Eco-Efficient Masonry Bricks and Blocks

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Contribution of renewable energy sources to electricity production in the La Rioja Autonomous Community, Spain. A review

Cited by 15 publications

References 4 publications

Methodology for Detecting Malfunctions and Evaluating the Maintenance Effectiveness in Wind Turbine Generator Bearings Using Generic versus Specific Models from SCADA Data

Methodology for Detecting Malfunctions and Evaluating the Maintenance Effectiveness in Wind Turbine Generator Bearings Using Generic versus Specific Models from SCADA Data

Biomass gasification or combustion for generating electricity in Spain: Review of its current situation according to the opinion of specialists in the field

Influence of large and highly perforated fired-clay bricks in the improvement of the equivalent thermal transmittance of single-leaf masonry walls

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