Flow interactions in Pelton turbines and the hydraulic efficiency of the turbine system

Zhang, Zh.

doi:10.1243/09576509jpe294

Cited by 32 publications

(33 citation statements)

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“…The hydraulic efficiency of the Pelton runner η P is obtained from momentum theory according to different geometrical and operational parameters as described in Thake (2000) and Zhang (2007):…”

Section: Pelton Turbinementioning

confidence: 99%

Simulation of an offshore wind farm using fluid power for centralized electricity generation

Laguna

2017

Wind Energ. Sci.

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Abstract.A centralized approach for electricity generation within a wind farm is explored through the use of fluid power technology. This concept considers a new way of generation, collection and transmission of wind energy inside a wind farm, in which electrical conversion does not occur during any intermediate conversion step before the energy has reached the offshore central platform. A numerical model was developed to capture the relevant physics from the dynamic interaction between different turbines coupled to a common hydraulic network and controller. This paper presents a few examples of the time domain simulation results for a hypothetical hydraulic wind farm subject to turbulent wind conditions. The performance and operational parameters of individual turbines are compared with those of a reference wind farm based on conventional wind turbine generator technology using the same wind farm layout and environmental conditions. For the presented case studies, results indicate that the individual wind turbines are able to operate within operational limits. Despite the stochastic turbulent wind conditions and wake effects, the hydraulic wind farm is able to produce electricity with reasonable performance in both below and above rated conditions. With the current pressure control concept, a continuous operation of the hydraulic wind farm is shown including the full stop of one or more turbines.

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Section: Pelton Turbinementioning

confidence: 99%

Simulation of an offshore wind farm using fluid power for centralized electricity generation

Laguna

2017

Wind Energ. Sci.

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“…where the hydraulic efficiencyh Pel of Pelton turbine is get from momentum theory [27]. The value of h Pel has relation with geometrical parameter of Pelton turbine.…”

Section: Nozzle (F) and Pelton Turbine (G) Modelmentioning

confidence: 99%

Modeling and control of a hybrid wind-tidal turbine with hydraulic accumulator

Fan

2016

Energy

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“…The hydraulic efficiency of the Pelton runner η P is obtained from momentum theory according to different geometrical and operational parameters as described in [7] and [8].…”

Section: Pelton Turbinementioning

confidence: 99%

Simulation of an offshore wind farm using fluid power for centralized electricity generation

Laguna

2016

J. Phys.: Conf. Ser.

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Abstract.A centralized approach for electricity generation within a wind farm is explored through the use of fluid power technology. This concept considers a new way of generation, collection and transmission of wind energy inside a wind farm, in which electrical conversion does not occur during any intermediate conversion step before the energy has reached the offshore central platform. A numerical model was developed to capture the relevant physics from the dynamic interaction between different turbines coupled to a common hydraulic network and controller. This paper presents two examples of the time-domain simulation results for an hypothetical hydraulic wind farm subject to turbulent wind conditions. The performance and operational parameters of individual turbines are compared with those of a reference wind farm with conventional technology turbines, using the same wind farm layout and environmental conditions. For the presented case study, results indicate that the individual wind turbines are able to operate within operational limits with the current pressure control concept. Despite the stochastic turbulent wind input and wake effects, the hydraulic wind farm is able to produce electricity with reasonable performance in both below and above rated conditions.

show abstract

Flow interactions in Pelton turbines and the hydraulic efficiency of the turbine system

Cited by 32 publications

References 0 publications

Simulation of an offshore wind farm using fluid power for centralized electricity generation

Simulation of an offshore wind farm using fluid power for centralized electricity generation

Modeling and control of a hybrid wind-tidal turbine with hydraulic accumulator

Simulation of an offshore wind farm using fluid power for centralized electricity generation

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