EPANET Modelling of a High Head Pumped-Storage Hydropower Facility

Dunca, Georgiana; Bucur, Diana Maria; Aldea, A.; Georgescu, Andrei-Mugur; Georgescu, Sanda-Carmen

doi:10.3390/proceedings2110608

Cited by 3 publications

(2 citation statements)

References 4 publications

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“…The literature study begins with a collection of books, written materials, and references relevant to the research. Research conducted by [12] used Epanet to model hydropower plants with the Darcy-Weisbach formulation to compute the head losses with the roughness. Research conducted by [13] conducted hydraulic simulations using Epanet 2.2 to calculate pressure and flow values, to determine pipe leaks that occurred in the research area.…”

Section: Research Methods 21 Literature Studymentioning

confidence: 99%

Planning Of Raw Water Distribution Network Sumberrejo Village Candipuro District Lumajang Regency

Tri Yogatama,

Azmi Dewi Nusantara

2024

civilla

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Indonesians have an average domestic water consumption of 34.2 liters/person/day while the minimum amount to meet basic human needs is 50 liters/person/day. The lack of water consumption requires a water distribution system so that minimum water consumption can be met. Sumberrejo Village is one example that does not have a water distribution network, so to meet daily water needs using ground wells. The use of earthen wells certainly has risks, namely contamination from fecal waste. Research on water distribution network planning needs to be done due to these problems. This plan aims to determine the availability of water to flow through Sumberrejo Village, water needs in the projection year, pipe dimensions, and reservoir dimensions used. This study used a quantitative descriptive method. Hydraulic analysis of piping networks using the Hazen–William method with the Epanet 2.2 auxiliary program. The results of the study found that the availability of water in Sumberrejo Village was inadequate, so it used the Gedang Sutro water source located in Sumberwuluh Village. Water demand in the projection year is 20,966 l / s at peak hour conditions. The diameter of the pipe used in this planning is 8 inches; 6 inches; 5 inches; 4 inches; 3 inches; 2.5 inches; 2 inches; 1.5 inches; 1.25 inches; 1 inch; and 0.75 inches. The reservoir used in this planning is tubular with a diameter of 11.5 m and a height of 4.5 m.

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Section: Research Methods 21 Literature Studymentioning

confidence: 99%

Planning Of Raw Water Distribution Network Sumberrejo Village Candipuro District Lumajang Regency

Tri Yogatama,

Azmi Dewi Nusantara

2024

civilla

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“…The cost of power production is also used as an optimization criterion. [17] determines the power generation level of the PSHPP depending on the water level in the upper reservoir as in the case of the pumped-storage facility located on the Sebes , River (Gâlceag, Romania).…”

Section: Literature Reviewmentioning

confidence: 99%

Economic aspects of introducing pumped-storage hydroelectric power plants into the mine dewatering system for distributed power generation

Mykhailenko

Budnikov

2022

IOP Conf. Ser.: Earth Environ. Sci.

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The paper examines the pumped hydroelectric energy storage potential of mine dewatering system for power generation in a distributed power system. Based on the water inflows that can be used to fill the drainage basins, the following options for pumped-storage hydroelectric power plants (PSHPP) are considered: when groundwater is discharged from only one mine, one hydraulic turbine is installed on the horizon below the surface; with additional discharge of groundwater from neighboring mines – installation of two or four hydraulic turbines at the drainage stages closest to the surface. Comparison was made with grid only system. It is based on net present value (NPV) and levelized cost of energy (LCOE) criteria. Variable parameters were hydraulic turbine water flow and mine power consumption. Also, for a certain combination of parameters, the optimal mine power system was determined. The area of use of the PSHS is estimated. It was found that the smallest economic effect is achieved when the power generation of one hydraulic turbine is close to the power consumption. The area of expedient use of the PSHPP within the limits of parameter variation is 17.2%, 19.6% (base and peak costs of power). This is because power generation drops when the water flow decreases. It does not cover the needs of the mine and there is a power shortage. Thus, the mine power system autonomy is very low. With an increase in water inflow and the number of hydraulic turbines, first up to two and then up to four units, the area of expedient use of PSHPP increases to 51.5%, 55.9% and 50.6%, 72.8%, respectively. However, with low energy consumption and a low water flow, it is still rational to receive electricity from the grid. This is due to a sharp drop in the efficiency of hydraulic turbines and high costs for maintenance and repair of PSHPP equipment, which are not comparable to the cost of purchasing power. So it was noted that with the base cost of electricity and an increase in the number of hydro turbines from two to four, the area of conditions under which the use of PSHPP is justified even decreased by 0.9%. At peak cost, the area increases by 16.9%. The mine power system autonomy is not achieved. In general, the efficiency of using PSHPP for mine dewatering systems is high, but the feasibility of their use should be studied for specific conditions of use.

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Algorithm for Appropriate Design of Hydroelectric Turbines as Replacements for Pressure Reduction Valves in Water Distribution Systems

Bideris-Davos

Vovos

2023

Water

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Gravity flow water distribution systems (WDSs) are used to permit water flow from an input point of highest elevation (source) to the terminal points of a system (consumers). In such WDSs, typically, there is no need for external power to maintain the flow due to the typical high gradients that exist. However, those gradients cause high water velocity and pressure to some network areas that could potentially lead to pipes bursting. Currently, the only means to regulate pressure within allowable range are Pressure Reduction Valves (PRVs). They are installed at various locations, but they cannot utilize the existing hydropower potential in terms of electrical energy production. This paper provides a methodology for hydro-turbines dimensioning, so that they mimic PRV operation in terms of pressure regulation while producing power efficiently. This includes an algorithmic process within which the proper turbine design and performance prediction are initially determined, and then, via an interconnection between EPANET and MATLAB, the hydraulic behavior of their operation within the water network is modeled and simulated. The methodology has been tested with simulations of a typical urban WDS. The results indicate that the produced turbine geometries mimic PRV action at the respective locations with more than 1% accuracy during 70% of the time (2% maximum error), while producing electric energy with hydraulic efficiency over 60%.

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EPANET Modelling of a High Head Pumped-Storage Hydropower Facility

Cited by 3 publications

References 4 publications

Planning Of Raw Water Distribution Network Sumberrejo Village Candipuro District Lumajang Regency

Planning Of Raw Water Distribution Network Sumberrejo Village Candipuro District Lumajang Regency

Economic aspects of introducing pumped-storage hydroelectric power plants into the mine dewatering system for distributed power generation

Algorithm for Appropriate Design of Hydroelectric Turbines as Replacements for Pressure Reduction Valves in Water Distribution Systems

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