Impact of the Pumping Regime on Electricity Cost Savings in Urban Water Supply System

Dadar, Sara; Đurin, Bojan; Alamatian, Ebrahim; Plantak, Lucija

doi:10.3390/w13091141

Cited by 16 publications

(5 citation statements)

References 33 publications

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“…The test results above show that all of the efficiency programs implemented are able to reduce the average daily cost of using compressed gas CNG energy to reach 78.49%. This is in line with previous studies such as the research of Dadar et al (2021) regarding the success of the pump station energy cost efficiency program which was able to contribute to reducing power consumption by around 15.4% -17% per day, through operational work by developing a model to reduce energy costs in urban water supply systems showed that optimization of cost efficiency programs with Genetic Algorithm Optimization (GAO). Or even if it's only 10% daily efficiency the value will be equivalent to a cost savings of 83,220,000 Riyals (1,666.46€) per day.…”

Section: Comparison Of Operating Cost Performance Before and After Th...supporting

confidence: 90%

“…According to the research results of Dadar et al (2021) on pump station efficiency research, using Genetic Algorithm Optimization (GAO) to achieve a minimum energy cost showed that optimization with GAO reduces energy cost consumption by about 15-20%. There is a significant e-ISSN: 2337-3067…”

Section: Comparison Of Operating Cost Performance Before and After Th...mentioning

confidence: 99%

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Comparison of Operating Cost Performance Before and After the Implementation of the Fuel Cost Efficiency Strategy

Aryawan,

Sedana

2022

EEB

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In this study, a comparison of operating cost performance before and after the implementation of the fuel cost efficiency program at PT Indonesia Power Grati POMU was conducted. In this study, the comparison of operating cost performance before and after the implementation of the fuel cost efficiency program for the variable costs of gas compression service PLTGU Grati, BPP component C and BOPO PLTG Block 2 dominantly uses CNG gas (reaching 55% of total CNG usage) will be tested. tested using the t-paired test and the Wilcoxon test. The data used is secondary data obtained from PLTGU Grati. From the test results, there are differences between the cost of compressing gas services for PLTGU Grati before and after the efficiency program as well as before and after renegotiation of tariffs. In addition, there are also differences in BPP and BOPO with gas fuel at PLTG Block 2 Grati between before and after the fuel cost efficiency program. Fuel cost efficiency program carried out at the PLTGU. . Grati has been able to reduce the use of compressed gas CNG energy by up to 78.49% or USD 3,707,713 within six months, equivalent to Rp. 51,907,976,400,00, as well as reducing the Cost of Generating to 14% and lowering the BOPO ratio by 7.1% so as to reduce the difference in the cost of the C gas component by Rp. 2,186,963,429.00 per month in the period from July to December 2019

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Section: Comparison Of Operating Cost Performance Before and After Th...supporting

confidence: 90%

Section: Comparison Of Operating Cost Performance Before and After Th...mentioning

confidence: 99%

Comparison of Operating Cost Performance Before and After the Implementation of the Fuel Cost Efficiency Strategy

Aryawan,

Sedana

2022

EEB

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“…Scenarios 2 and 3 were found to have low water supply efficiency downstream of the YRB. Dadar et al [49] noted that pumping stations and wastewater processing units are the vital centers and main arteries of water transmission. They are major sources of water generation in water distribution networks.…”

Section: Changes In Water Shortage Due To Application Of Water Supply Scenariosmentioning

confidence: 99%

Evaluation of Agricultural Water Supply and Selection of Deficient Districts in Yeongsan River Basin of South Korea Considering Supply Priority

Kim

et al. 2022

Water

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Considering the priority of water supply, agricultural water supply capacity downstream of the Yeongsan River Basin was evaluated in this study. The water balance was analyzed using the Please check all author names carefullyMODSIM-decision support system (MODSIM-DSS) to evaluate the agricultural water supply capacity. MODSIM-DSS can also be used to analyze the watershed demand status and agricultural water supply facilities. In this study, the watershed inflow and agricultural reservoir inflow (supply) data for each watershed were obtained using the SWAT outflow data. SWAT was calibrated and validated using 16-years (2005–2020) of daily streamflow data from one water level station and two weirs, by considering water withdrawal and return flows from agricultural, domestic, and industrial water use. The coefficient of determination (R2) was analyzed as 0.50 to 0.80 at three stations. Then, water balance analyses were performed for 41 years (1980–2020) by applying the SWAT outflow results to MODSIM-DSS. The results showed that agricultural water shortages of 517.8 × 106 m3, 520.0 × 106 m3, 579.8 × 106 m3, and 517.5 × 106 m3, occurred in 1992, 1994, 1995, and 2015, respectively. The efficiencies of agricultural water supply for these years were 58.2%, 58.0%, 53.2%, and 58.2%, respectively, which were lower than the 40-year average of 84.5%.

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“…In addition, Mehzad 12 and Hashemi et al 13 applied ant colony optimizations to a water transmission network to form a cost-minimizing pumping schedule. Dadar et al 14 on the other hand, used a genetic algorithm to derive the optimal method of operating the pumping system, thus minimizing the energy cost. For the optimization of pumping systems in water supply systems, Candilejo et al 15 on the other hand, used the Granados optimization system to predict the expected effects of pumping systems and compare proposed optimization cases.…”

Section: Introductionmentioning

confidence: 99%

Optimization of low-head shaft tubular pumping systems based on entropy production theory

Wang,

Jiao,

Cheng

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part A:

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In order to improve the operation efficiency of low-head tubular pump, this paper studies the influence of shaft type in the shaft tubular pump on the flow characteristics and energy characteristics of the pump. To optimize the shaft structure of shaft tubular pumping systems and realize the efficient use of energy, numerical simulation and model test was employed to study the optimization of the entire pumping system. In this paper, the CFD method was used to numerically simulate the whole pumping system, and the effect of changing the shaft length, shaft head profile, and shaft tail profile on the internal flow and entropy production characteristics of the inlet passage and impeller position were analyzed. It is found that the tapered tail profile can make the inlet passage overflow area change more smoothly and thus make the flow pattern more favorable. The wall entropy production dissipation at the inlet passage position dominates the total entropy production, and the high-value area of mainstream entropy production at this position is distributed periodically. The mainstream entropy production dissipation at the impeller section accounts for a relatively large proportion. After the entropy production dissipation analysis, it is believed that the tapered can reduce the entropy production dissipation of the pumping systems. The change of the shaft tail profile will make the entropy production dissipation change more noticeable compared with other optimization factors. Therefore, the tapered tail profile with better transition in the actual project is recommended.

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Impact of the Pumping Regime on Electricity Cost Savings in Urban Water Supply System

Cited by 16 publications

References 33 publications

Comparison of Operating Cost Performance Before and After the Implementation of the Fuel Cost Efficiency Strategy

Comparison of Operating Cost Performance Before and After the Implementation of the Fuel Cost Efficiency Strategy

Evaluation of Agricultural Water Supply and Selection of Deficient Districts in Yeongsan River Basin of South Korea Considering Supply Priority

Optimization of low-head shaft tubular pumping systems based on entropy production theory

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