Wind turbine nacelle cooling systems: A review

Abstract

The thermal load in the wind turbine nacelle is increasing due to the higher dissipation of heat from the various components in the high unit capacity wind mill. With the motive to develop a sustainable and efficient windmill, research on low cost highly efficient wind turbine nacelle cooling systems has become particularly important. In this review, the prominent waste heat producing sources and the extensively used cooling systems are described. A detailed analysis of the advantages and limitations of each system and the use of various cooling fluids as cooling medium in wind turbine nacelle cooling systems is also discussed. Use of nanofluids as cooling medium in liquid cooling system is also highlighted as it produces a higher thermal performance enhancement. Hence, it is identified as a promising option for a cooling medium and future research.

El Estudio de Resiliencia de la Red Electrica de Puerto Rico y Transiciones a Energia 100% Renovable (PR100): Informe Final [Puerto Rico Grid Resilience and Transitions to 100% Renewable Energy Study (PR100): Final Report]

“…• Fuentes de generación que dependen de sistemas de enfriamiento: los componentes de generación y almacenamiento que requieren enfriamiento (por ejemplo, turbinas eólicas y baterías) estarán sometidos a un estrés térmico aún mayor a mediados de siglo, lo que aumentará las necesidades generales de enfriamiento y, por tanto, su propia dependencia de la energía eléctrica (Fuskele et al 2022). • Capacidad de carga de líneas eléctricas aéreas: los componentes de los sistemas de transmisión y distribución (por ejemplo, las líneas eléctricas aéreas) se verán afectados por el aumento de la temperatura ambiente, que reducirá su capacidad de carga, lo que provocará desconexión de la carga y, potencialmente, operaciones degradadas o interrumpidas en el área de servicio (Bartos et al 2016).…”

Application of passive and active scenarios to a residential building in a dry and hot climate to achieve a positive energy building (PEB)

“…The concept of net zero energy building design represents an evolution beyond passive sustainable design. It involves a more comprehensive consideration of active energy systems throughout the design process [ [49] , [50] , [51] , [52] ].…”

Impact of the Air Filtration in the Nacelle on the Wind Turbine Performance

“…Due to the development of wind turbine technology, the increased rated power of wind turbines has posed significant challenges in achieving these units' long-term stability and efficiency [7,8]. One such challenge is the increased heat load on components inside the nacelle, including the gearbox, generator, and control inverter [9,10]. As temperatures rise, the turbine performance slightly deviates from the manufacturer's guaranteed curve [11].…”

“…About 95% of wind turbines use liquid and air cooling methods to keep components inside the nacelle operating normally [16]. The literature indicates that considerable studies have been conducted on different cooling technologies to increase cooling efficiency and overcome the impact of heat increase in the nacelle [9,17]. These combined techniques include utilizing this unwanted heat to supply the required energy cooling/heating applications, which are still not prevalent [18][19][20].…”