Multi-Criteria Selection of Wind Turbine Using TOPSIS Approach

2020 ◽  
Author(s):  
Shafiqur Rehman ◽  
Salman A. Khan ◽  
Luai M. Alhems
Keyword(s):  
Wind Turbine ◽  
Wind Farm ◽  
Selection Process ◽  
Geographical Location ◽  
Real Data ◽  
Maximum Energy ◽  
Decision Criteria ◽  
Topsis Approach ◽  
Selection Of

Abstract The recent revolution in the use of renewable energy worldwide has opened many dimensions of research and development for sustainable energy. In this context, the use of wind energy has received notable attention. One critical decision in the development of a wind farm is the selection of the most appropriate turbine compatible with the characteristics of the geographical location under consideration in order to harness maximum energy. This selection process considers multiple decision criteria which are often in conflict with each other, as improving one criterion negatively affects one or more other criteria. Therefore, it is desired to find a tradeoff solution where all selection criteria are simultaneously optimized to the best possible level. This paper proposes a TOPSIS (The Technique for Order of Preference by Similarity to Ideal Solution) based approach for multi-criteria selection of wind turbine. Three decision criteria, namely, hub height, wind speed, and net capacity factor are used in the decision process. A case study is shown on real data collected from the Aljouf region located at an altitude of 753 meters above sea level in the northern part of Saudi Arabia. Seventeen turbines with rated capacities ranging from 1.5 GW to 3 GW from various manufacturers are evaluated. Results indicate that Vestas V110 turned out to be the most appropriate turbine for the underlying site.

scholarly journals Application of TOPSIS Approach to Multi-Criteria Selection of Wind Turbines for On-Shore Sites

2020 ◽  
Vol 10 (21) ◽  
pp. 7595
Author(s):  
Shafiqur Rehman ◽  
Salman A. Khan ◽  
Luai M. Alhems
Keyword(s):  
Renewable Energy ◽  
Energy Production ◽  
Selection Criteria ◽  
Wind Farm ◽  
Global Scale ◽  
Decision Criteria ◽  
Topsis Approach ◽  
North Western ◽  
Selection Of

The remarkable developments in renewable energy at the global scale have paved the way for a sustainable future and cleaner environment. As a fundamental element of this renewable energy revolution, wind energy has received tremendous attention worldwide. In order to harness maximal energy from a wind farm, one crucial decision is the selection of a turbine that is most compatible with the geographical and topographical characteristics of the location under consideration. This selection mechanism ideally considers multiple conflicting decision criteria—i.e., an improvement in one criterion negatively impacts one or more other criteria. Therefore, a tradeoff solution is desired in which the selection criteria are simultaneously optimized to the best achievable limits. Considering the above observations, this paper proposes a TOPSIS (the technique for order of preference by similarity to ideal solution)-based wind turbine selection approach. The problem is modeled as a multi-criteria decision problem while considering hub height, wind speed, percentages of zero and rated output, and annual energy production as the decision criteria. A case study is shown for data collected from two potential sites in northern and north-western Saudi Arabia. Fifteen turbines with rated capacities ranging from 1.5 to 3 MW from various manufacturers were evaluated. Results indicate that the TOPSIS approach was effective in identifying the best turbines for each site. Furthermore, the proposed approach helped in identifying the similarities in the behavior of turbines for the two sites. A comparison of the TOPSIS approach with other multi-criteria decision-making techniques proved the robustness of the method.

scholarly journals Processo seletivo de tutores da UAB da UFAL: aspectos para uma seleção criteriosa e significativa

2015 ◽  
Vol 14 (3) ◽  
pp. 545-560
Author(s):  
Rosana Sarita de Araujo
Keyword(s):  
Selection Process ◽  
Legal Aspects ◽  
Legal Basis ◽  
Case Study Methodology ◽  
Proof Of Knowledge ◽  
Palabras Clave ◽  
Study Methodology ◽  
Investigación Cualitativa ◽  
Selection Of

Resumo: O trabalho discute o processo seletivo de tutores da UAB da UFAL, considerando os aspectos legais, bem como os aspectos técnico-pedagógicos que traduzem a seleção como criteriosa e significativa. Caracterizada como pesquisa qualitativa utiliza a metodologia de estudo de caso e de comparação para estudo de dois editais da UFAL de processos seletivos de tutores. A análise dos dados aponta as limitações que a legislação delineia para a seleção de tutores, as diferenças nos índices de aprovação dos candidatos em relação às etapas utilizadas no processo de seleção, os impactos da prova de conhecimento versus entrevista, bem como demonstra a crescente credibilidade do processo de seleção de tutores da UFAL.   Palavras-chave: Seleção de tutores. Base legal. Aspectos pedagógicos Abstract: The work discusses the selection process of the UAB tutors from UFAL, considering the legal aspects, as well as pedagogical and technical aspects that reflect the selection as judicious and significant. Characterized as qualitative research it uses the case study methodology and comparison for the study of two UFAL public notices for the selective processes of tutors. Data analysis points out the limitations that legislation delineates for the selection of tutors, differences in approval rates of candidates regarding the steps used in the selection process, the impacts of proof of knowledge versus interview, and it also demonstrates the growing credibility of the UFAL tutors selection process. Keywords: Selection of tutors. Legal basis. Pedagogical aspects Resumen: En este trabajo se discute el proceso de selección de los tutores de la UAB UFAL, considerando los aspectos legales , así como los aspectos técnicos y pedagógicos que traducen la selección minunciosa y significativa. Caracterizado como investigación cualitativa utiliza la metodología de estudio de caso y comparación con el estudio de dos convocatorias de la UFAL de procesos de selección de tutores. La análisis de los datos muestran las limitaciones que la legislación esboza para seleccionar los tutores, las diferencias en los índices de aprobación de los candidato en relación a las fases utilizadas en el proceso de selección , el impacto de la prueba de conocimientos frente a la entrevista , y demuestra la credibilidad creciente del proceso de selección de tutores de la UFAL . Palabras clave: Selección de tutores. Base legal. Aspectos pedagógicos 

Investigating Barriers That May Influence the Implementation and Use of E-HRM Tools in the Organization

2021 ◽  
pp. 350-370
Author(s):  
Hamid Agahi ◽  
Sarist Gulthawatvichai
Keyword(s):  
Human Resource ◽  
Selection Process ◽  
Business Sector ◽  
Human Resource Managers ◽  
Structured Interviews ◽  
Resource Managers ◽  
Recruitment And Selection ◽  
Study Participants ◽  
Selection Of

Human resource managers (HRMs) can use electronic-human resource management (E-HRMs) tools to improve human resources practices, including recruitment and selection of employees. Grounded in the theoretical framework of a unified theory of acceptance (UTAUT), this present qualitative case study investigated the potential barriers that influence the implementation and use of E-HRMs in Thailand's business sector. Human resource professionals from the business sector, including hotels in Thailand, were the study participants. Semi-structured interviews with open-ended questions were used as data collection instruments. Qualitative data collected was analyzed using thematic content analysis. The challenges impact the recruitment and selection process by making the employment process complex and poor selection of employees. HRMs should support E-HRMs as the advanced technologies to improve recruitment and selection of competent employees. In conclusion, E-HRMs are effective information systems that support electronic recruitment and selection of qualified employees.

scholarly journals Moving Accelerometers to the Tip: Monitoring of Wind Turbine Blade Bending Using 3D Accelerometers and Model-Based Bending Shapes

Sensors ◽  
2020 ◽  
Vol 20 (18) ◽  
pp. 5337
Author(s):  
Theresa Loss ◽  
Alexander Bergmann
Keyword(s):  
Wind Turbine ◽  
Turbine Blades ◽  
Rotation Frequency ◽  
Real Data ◽  
Maximum Energy ◽  
Wind Turbine Blades ◽  
Energy Capture ◽  
Model Based ◽  
Blade Tip ◽  
Wind Profiles

Increasing the length of wind turbine blades for maximum energy capture leads to larger loads and forces acting on the blades. In particular, alternate bending due to gravity or nonuniform wind profiles leads to increased loads and imminent fatigue. Therefore, blade monitoring in operation is needed to optimise turbine settings and, consequently, to reduce alternate bending. In our approach, an acceleration model was used to analyse periodically occurring deviations from uniform bending. By using hierarchical clustering, significant bending patterns could be extracted and patterns were analysed with regard to reference data. In a simulation of alternate bending effects, various effects were successfully represented by different bending patterns. A real data experiment with accelerometers mounted at the blade tip of turbine blades demonstrated a clear relation between the rotation frequency and the resulting bending patterns. Additionally, the markedness of bending shapes could be used to assess the amount of alternate bending of the blade in both simulations and experiment.s The results demonstrate that model-based bending shapes provide a strong indication for alternate bending and, consequently, can be used to optimise turbine settings.

scholarly journals Renewable Energy Promotion Instruments Used by Innovation Brokers in a Technology Transfer Network. Case Study of the Enterprise Europe Network

Energies ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 5752
Author(s):  
Zofia Gródek-Szostak ◽  
Marcin Suder ◽  
Rafał Kusa ◽  
Anna Szeląg-Sikora ◽  
Joanna Duda ◽  
...  
Keyword(s):  
Economic Development ◽  
Renewable Energy ◽  
Technology Transfer ◽  
Significant Variation ◽  
Geographical Location ◽  
Institutional Support ◽  
Energy Resources ◽  
Renewable Energy Resources ◽  
Selection Of

Stable and sustainable economic development—including that of renewable energy resources (RES)—requires institutional support of an environment that would enable market operations, and support them in case they are ineffective. Innovation brokers, including structured technology transfer networks, play a key role in promoting, disseminating, and liaising between the parties in the RES sector. The aim of the paper is to present the structure of events used to promote RES in Europe by the Enterprise Europe Network in the years 2017–2018; to verify whether the type of promotion instrument used is significantly related to the location of the events organized; to research whether the selection of the supporting partner is determined by the organized event’s geographical location. The analysis is carried out by means of an empirical study of the network of innovation brokers, i.e., the Enterprise Europe Network. Additionally, the available data are analyzed in terms of the type of the partner supporting individual events. It has been shown that there is a significant variation in the structure of the types of events for individual regions of Europe. This could mean that the organizers’ decisions as to the type of events organized in particular regions of Europe are deliberate and in some way adjusted to the region in which they take place.

Airstrip Site Selection in Coastal Labrador

1981 ◽  
Vol 35 (1) ◽  
pp. 17-25
Author(s):  
J. D. Innes ◽  
E. H. Smith ◽  
Allan Fiander
Keyword(s):  
Site Selection ◽  
Coastal Area ◽  
State Of The Art ◽  
Selection Process ◽  
Geometric Design ◽  
Digital Mapping ◽  
Data Requirements ◽  
Selection Of ◽  
Design Techniques

This paper examines a case study of the selection of nine airstrip sites in the coastal area of Labrador. The procedure used involved the procurement of better mapping for the site selection process. The benefits of this process are examined in the context of the data requirements for good airstrip selection. The site selection process is then examined utilizing state of the art digital mapping and computerized geometric design techniques.

Selection of Leak Detection Systems by Aggregation of Experts’ Judgment

2014 ◽  
Author(s):  
Sirous Yasseri
Keyword(s):  
Decision Maker ◽  
Selection Process ◽  
Leak Detection ◽  
Fuzzy Topsis ◽  
Detection Systems ◽  
Good Compromise ◽  
Criteria For Selection ◽  
Selection Of

Numerous leak detection systems (LDS) using a variety of technologies are on the market. Since LDS are designed for a particular use, then the evaluation and selection process requires suitable metrics and involvement from all stakeholders. This paper proposes to use15 criteria for selection of LDS. Each criterion is first rated for their importance by a number of experts. Then, the same experts are asked to rate a list of candidate LDSs. Fuzzy TOPSIS is used to aggregate Experts’ judgment. A case study is presented to demonstrate the application of the method. This method would indicate how a good compromise might look like. This could aid the decision-maker to weigh options and set priority and decide on a system.

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