CFD as a Decision Tool for Pumped Storage Hydropower Plant Flow Measurement Method

Souček, Jiří; Nowak, Petr; Kantor, Martin; Veselý, Radek

doi:10.3390/w15040779

Cited by 3 publications

(2 citation statements)

References 30 publications

(32 reference statements)

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“…Baniya et al, stated that Himalaya is so suitable for the pumped storage facilities because of the geographical advantages [27] . Soucek et al, analyzed computational fluid dynamics by using numerical modelling, standards and scientific literature for Pumped Hydro Storage plant [28] . Hu et al, performed a quantitative study for liquid behaviour of the manifold in seawater pumped storage facility [29] .…”

Section: Countries With Pumped Hydro Storagementioning

confidence: 99%

Prefeasibility analysis of the Pumped Hydro Storage (PHS) system in Türkiye: A case study on a hybrid system

Saltuk

2023

Energ. Stor. Conv.

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Pumped hydro storage (PHS) power plants aim to exploit the price difference between storing and generating electricity. These power plants operate by pumping water from the lower reservoir to the upper reservoir, consuming energy and generating electricity by transferring water from the upper to the lower reservoir. There is no pumped storage power plant in Türkiye yet and it is in the planning stage. This study aims to provide a preliminary feasibility analysis of this investment from an economic and technical point of view and to contribute to this issue through the recently announced feed-in tariff for PHS. The planned PHS at Gökçekaya Dam was considered as a proposal in this study and was carried out using a developed algorithm. The algorithm determines the optimal installed capacity of hybrid energy. This feasibility analysis is based on two scenarios. The difference between the first and the second scenario is due to the investment cost of the PHS system. Additionally, the second scenario considers integrated hybrid Solar Hydroelectric (SHE) system. Each scenario is evaluated in terms of base price, average price, maximum feed-in price, and market peak price. The result of the study is that only the market price represents a remarkable payback period for pumped storage power plants. As a result of the study, it was found that it’s possible to support the pumped storage power plant with hybrid solar power system and market price if only the storage volume should be increased. The feed-in tariff should be set to cover the demand. In the first scenario, only the PHS was evaluated, and after completing the economic analysis, the investment has a payback period of 28.39 years for the market peak price. If the PHS facility is supported by a hybrid solar energy system for internal energy needs, the payback periods can be reduced. In the first scenario, the investment has a payback period of 18.05 years supported by integrated hybrid solar energy. In the second scenario, the PHS investment has a payback period of 9.63 years for the highest price on the market. The investment has a payback period of 8.66 years, which is supported by the integrated hybrid solar energy. Due to the high self-consumption of energy, an integrated hybrid solar energy is suitable for the PHS projects.

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Section: Countries With Pumped Hydro Storagementioning

confidence: 99%

Prefeasibility analysis of the Pumped Hydro Storage (PHS) system in Türkiye: A case study on a hybrid system

Saltuk

2023

Energ. Stor. Conv.

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“…Peng et al [19] designed an automatic flow measurement device based on the flow velocity area method, in which the water level and flow velocity data are measured at each point of the channel cross-section by water level sensors and flow velocity sensors, so as to calculate the flow magnitude, and the flow measurement results of this automatic flow measurement device were found to be highly accurate. There is a rich variety of novel flow-measuring equipment methods, such as radar technology [20], STIV [21], the flow-velocity sensor [22], and ultrasonic transit time [23], which can be used for different types of channels, and the measurement accuracy is high. However, the structure of equipment used in this method is complex, and the cost is high.…”

Section: Introductionmentioning

confidence: 99%

A Study on the Measurement Characteristics of the Spring-Plate Flow Measurement Device

Tao

et al. 2023

Water

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In order to improve the effective utilization of agricultural irrigation water and to reasonably allocate water resources in irrigation areas, it is necessary to use open channel flow measurement devices that are accurate and easy to carry. In this study, a spring-plate flow measurement device with different plate widths was designed. Through a combination of theoretical analysis and numerical simulation, the measurement characteristics of the device in specific channels under conditions of 20–105 m3/h flow were studied, the relationship between the flow rate and the force acting on the plate surface was fitted, and the hydraulic characteristics of water flow during its use, such as pressure, velocity distribution, and head loss, were analyzed. The results show that in the process of using the spring-plate flow measurement device, the force on the plate surface increases with the increase in the flow rate, and the force on the plate surface is related to the flow rate in the channel by a power of 5/6. The width of the measurement plate impacts the accuracy of flow measurement, and the smaller the plate width, the larger the error in flow measurement. The distribution of pressure on the measurement plate is similar to that of static pressure, and the pressure increases with the increase in the width of the measurement plate. The upstream flow velocity of the device is small, and the water level increases due to obstruction of the measurement plate. When it connects to the downstream water surface, the water level rapidly decreases, and the flow velocity increases. In using the spring-plate flow measurement device to measure flow, head loss will be produced, and the magnitude of this loss increases with the increase in the width of the measurement plate. The research results provide a theoretical basis for the application of spring plate flow-measuring devices in irrigation areas.

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CFD – Tool for Choosing a Suitable Flow Measurement Methods

Souček,

Nowak

2024

IOP Conf. Ser.: Earth Environ. Sci.

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Verifying guaranteed turbine parameters, especially flow rate, is essential after turbine or pump-turbine rehabilitation. Extensive changes in the hydraulic circuit are realized in the case of the transformation of an existing hydropower plant (HPP) to a pumped storage power plant (PSP), replacing vertical Kaplan with a new reversible Francis turbine. The article introduces a methodology for choosing a suitable flow measurement method. Computational fluid dynamics (CFD) supported by standards (IEC, ASME, ISO) and scientific literature serves as a tool for choosing a suitable flow measurement method, its optimal position in the penstock, and quantifying the value of uncertainty. Two main flow measurement methods – the current meter and the ultrasonic method - were considered in this article. A “virtual flow measurement” was performed based on the velocity field obtained from the CFD model. The reconstructed flow rates obtained from the virtual measurement by both methods were compared with exact flow rate values from CFD. The flow deviation’s sensitivity to the current meter position or the ultrasonic paths rotation was performed for the selected profiles. The profiles with small deviations and low sensitivity to rotation correspond to the recommended profiles according to the standards.

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CFD as a Decision Tool for Pumped Storage Hydropower Plant Flow Measurement Method

Cited by 3 publications

References 30 publications

Prefeasibility analysis of the Pumped Hydro Storage (PHS) system in Türkiye: A case study on a hybrid system

Prefeasibility analysis of the Pumped Hydro Storage (PHS) system in Türkiye: A case study on a hybrid system

A Study on the Measurement Characteristics of the Spring-Plate Flow Measurement Device

CFD – Tool for Choosing a Suitable Flow Measurement Methods

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