Thermal Analysis of Wind Turbine Nacelle Operating in Algerian Saharan Climate

Smaïli, Arezki; Tahi, Ali; Massfon, Christian

doi:10.1016/j.egypro.2012.05.030

Cited by 18 publications

(12 citation statements)

References 3 publications

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“…The transition piece typically used in a monopole structure is commonly manufactured using steel flange–reinforced shear panels using stainless steels such as the SS316, which require a lot of welding at the joints. Recently, the high‐performance compact‐reinforced composite (CRC) has been studied as an alternative to the steel flange for the transition piece material . Although stainless steels provide good strength to resist aerodynamic and mechanical loadings.…”

Section: Materials For the Offshore Wt Structuresmentioning

confidence: 99%

“…The aluminium alloys 6XXX are used as an alternative for the blade hub, especially for the smaller WT blades . As the turbine design and technology continuously evolve, blades will see the use of composites, for example, metal matrix composite (MMC) involving steel, glass fibre–reinforced plastic (GFRP), and carbon fibre–reinforced plastic (CFRP) …”

Section: Materials For the Offshore Wt Structuresmentioning

confidence: 99%

“…This could be problematic when selecting the materials, for example, for the electronic equipment to be able to operate in such a range. The condition could be worsened for the offshore WTs because of the need for an airtight nacelle unit in order to minimize the inflow of corrosive outer air and other marine corrosive elements (eg, salt spray or fog). It could lead to an increase in the internal temperature inside the nacelle such as in the generator part, which could go up to 150°C when the cooling system is not adequately installed .…”

Section: Introductionmentioning

confidence: 99%

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Benchmarking parameters for remote electrochemical corrosion detection and monitoring of offshore wind turbine structures

et al. 2019

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The remote location and position of offshore wind turbine structures severely limits the application of in situ corrosion detection methods such as ultrasonic, acoustic emission, and X-ray. A real-time remote sensing (RTRS) technology can be implemented to provide autonomous detection and monitoring, providing exhaustive and detailed information on the corrosion process. Utilizing the concept of Internet of Things (IoT) through the integration with satellite and terrestrial communication network, iWindCr, a technology development project funded by the Innovate UK, aims to design a wireless sensor network (WSN) of smart miniaturized sensors for corrosion detection and monitoring of the offshore wind turbine structures. This paper discusses the rationale and challenges around the iWindCr WSN design, particularly in the development of a miniaturized system and in relation to the provision of power and power consumption.The later has led to the selection and the integration of the electrochemical analysis techniques, namely open circuit potential (OCP) and zero resistance ammeter (ZRA) on the sensor interface system. The verification of these techniques for the corrosion detection sensor has resulted in a database consisting of the corrosion parameter outputs or threshold values of metals specific to offshore wind turbine structures, in this case tower, foundation, and nacelle (gearbox). The database provides end-users with the benchmark that can be used to detect physical changes during the course of corrosion or passive film damage. These parameters are incorporated in the user interface data analytic software, enabling the quantification of corrosion or film damage.

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Section: Materials For the Offshore Wt Structuresmentioning

confidence: 99%

Section: Materials For the Offshore Wt Structuresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Benchmarking parameters for remote electrochemical corrosion detection and monitoring of offshore wind turbine structures

et al. 2019

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“…The nacelle may be subjected to severe weather conditions that excess technical components specification. To avoid failures caused by extremely high temperatures, an appropriate cooling system is proposed inside the nacelle [41]. The weight and volume reduction of the nacelle can reduce the installation cost as well as the total capital cost [42].…”

Section: Structural Modelsmentioning

confidence: 99%

Condition monitoring of wind turbine pitch controller: A maintenance approach

et al. 2018

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With the increase of wind power capacity worldwide, researchers are focusing their attention on the operation and maintenance of wind turbines. A proper pitch controller must be designed to extend the life cycle of a wind turbine's blades and tower. The pitch control system has two main, but conflicting, objectives: to maximize the wind energy captured and converted into electrical energy and to minimize fatigue and mechanical load. Four metrics have been proposed to balance these two objectives. Also, diverse pitch controller strategies are proposed in this paper to evaluate these objectives. This paper proposes a novel metrics approach to achieve the conflicting objectives with a maintenance focus. It uses a 100 kW wind turbine as a case study to simulate the proposed pitch control strategies and evaluate with the metrics proposed. The results are showed in two tables due to two different wind models are used.

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“…The resulting governing equations have been solved by the Control-Volume Finite Element Method (CVFEM) [2]. In a recent work [3], a numerical method has been proposed to investigate the nacelle thermal behavior operating under extreme Saharan hot weather conditions. A few studies on the nacelle thermal behavior are available in the literature [4,6], while several works on the heat transfer in rectangular/square enclosures have been published (e.g.…”

Section: Introductionmentioning

confidence: 99%