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Journal articles on the topic 'District electric network'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

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1

Zhou, Zheng, Liu, et al. "Operation Optimization of Multi-District Integrated Energy System Considering Flexible Demand Response of Electric and Thermal Loads." Energies 12, no. 20 (2019): 3831. http://dx.doi.org/10.3390/en12203831.

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Multi-district integrated energy system (IES) can make full use of the complementary characteristics of district power and thermal system, and loads in different districts. It can improve the flexibility and economy of system operation, which has a good development prospect. Firstly, based on the general energy transfer model of the district heating network (DHN), the DHN system is described by the basic equations of the heating network and nodes considering the characteristics of the transmission time delay and heat loss in pipelines. A coupling model of DHN and multi-district IES is establis

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Gonzalez-Castellanos, Alvaro, Priyanko Guha Thakurta, and Aldo Bischi. "Congestion management via increasing integration of electric and thermal energy infrastructures." E3S Web of Conferences 238 (2021): 05005. http://dx.doi.org/10.1051/e3sconf/202123805005.

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Congestion caused in the electrical network due to renewable generation can be effectively managed by integrating electric and thermal infrastructures, the latter being represented by large scale District Heating (DH) networks, often fed by large combined heat and power (CHP) plants. The CHP plants could further improve the profit margin of district heating multi-utilities by selling electricity in the power market by adjusting the ratio between generated heat and power. The latter is possible only for certain CHP plants, which allow decoupling the two commodities generation, namely the ones p

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Sun, Lei, Yong Ma, Jinsong Zhu, Xiaohan Li, Peng Wu, and Xiangyu Bao. "Analysis of Security Operational Characteristics of Distribution Network considering Electric Vehicle Load Access Forecast." Mathematical Problems in Engineering 2022 (July 22, 2022): 1–11. http://dx.doi.org/10.1155/2022/9751132.

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In recent years, electric vehicles have been widely promoted by virtue of environmental protection and pollution-free advantages. In the future, they are expected to become a mainstream means of transportation. However, as new services and business models become more and more closely related to the distribution network, the traditional AC distribution district has limited ability to respond to the large-scale access of electric vehicles. Therefore, it is becoming increasingly important to improve the ability to respond to electric vehicle access, reduce the negative impact of large-scale elect

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Nikitin, Ye Ye, and O. V. Dutka. "TECHNICAL AND ECONOMIC EFFICIENCY OF COMBINED DISTRICT HEATING WITH LOCAL HEAT SOURCE FOR DISTRICT HOT WATER." Energy Technologies & Resource Saving, no. 1 (March 20, 2020): 34–40. http://dx.doi.org/10.33070/etars.1.2020.4.

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The scheme of combined district heating systems is used, in which centralized heating is used for heating and local heat source is used for hot water supply. A mathematical model has been developed that allows to perform a comparative analysis of the technical and economic characteristics of two scenarios of modernization of the heat supply system: replacement of boilers, heat networks and pumps while using the traditional hot water supply scheme, and replacement of these elements in combination with the installation of a local hot water supply source that provides the hot water supply. hot wa

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Masaev, S. Kh, U. Kh Makaev, and M. V. Debiev. "The basic stages of improving the power grid complex functioning of the Chechen Republic." Power engineering: research, equipment, technology 22, no. 4 (2020): 43–53. http://dx.doi.org/10.30724/1998-9903-2020-22-4-43-53.

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The article considers the state of the electric power industry functioning of the Chechen Republic. Comparative data on the reception in the network and useful electricity supply of the Chechen Republic in recent years are presented. The total transformer capacity structure of all substations, as well as the power lines total length of Chechenenergo JSC, is considered. The main electric power industry problems of the Chechen power system, which are the lack of own generating capacities, the transformer capacities shortage of substations 110 and 35 kV and the main production assets high level w

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Bolshev, V. E., A. V. Vinogradov, A. V. Vinogradova, A. V. Bukreev, and S. R. Khasanov. "Study of statistical data on the composition of electric distribution networks on the example of a Kaluga region district." E3S Web of Conferences 220 (2020): 01005. http://dx.doi.org/10.1051/e3sconf/202022001005.

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Sustainable operation of the power grid complex is impossible without reliable and high-quality operation of 10/0.4 kV electrical distribution networks, which are the final link in the system for providing consumers with electric energy and are in direct interaction with a specific consumer. The study of statistical information on the composition of distribution networks makes it possible to draw conclusions about electrical network state, to implement recommendations for their development and to compare distribution electrical networks in different regions. This information is especially rele

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Fedirko, Mykhailo, Vasyl Brych, Mykola Horlachuk, Olha Zavytii, and Roman Golovko. "FREQUENCY REGULATION OF THE ELECTRIC DRIVE OF PUMP UNITS OF THE CENTRALIZED HEAT SUPPLY NETWORK BASED ON ASYNCHRONOUS MOTORS WITH A SHORT-CIRCUITED ROTOR." Energy saving. Power engineering. Energy audit., no. 7-8(185-186) (September 20, 2023): 22–32. http://dx.doi.org/10.20998/2313-8890.2023.07.02.

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The quantitative and qualitative parameters of the frequency regulation of the electric drive of the pumping units of the centralized heat supply network were determined. The necessity and possibility of using the frequency-regulated electric drive of pumping units in the networks of centralized heat supply, in the mode of their operation of quantitative and qualitative regulation of the coolant supply, is well-founded. The frequency control parameters were calculated on the basis of technical data related to the operating mode, where the flow rate of the coolant changes according to the hydra

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Eremin, Anton, Konstantin Trubitsyn, Sergey Kolesnikov, Igor Kudinov, and Vasily Tkachev. "Computer models of hydraulic systems of district heating." MATEC Web of Conferences 193 (2018): 02028. http://dx.doi.org/10.1051/matecconf/201819302028.

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A mathematical and computer model of a district heating network fed by two heat sources located at significantly different elevation marks has been developed. The model is based on the electrohydraulic analogy of electric current spread in conductors and liquid pressure spread in pipelines, which are described by the same equations. In particular, the first and second Kirchhoff’s laws used in the calculation of electrical networks are applied to calculate the velocities and pressures in a complex multi-ring pipeline system. In order to maximize the approximation of the computer model to the re

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Baldini, Luca, and Juan Mahecha Zambrano. "Thermochemical storage networks for integration of renewable energy sources through seasonal load shifting." Journal of Physics: Conference Series 2600, no. 4 (2023): 042001. http://dx.doi.org/10.1088/1742-6596/2600/4/042001.

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Abstract Thermochemical networks are a rather new subject in research and support our goal to lower winter electricity demand and foster the integration of renewable energy sources. This paper takes a first step towards a performance analysis of thermochemical networks and a comparison to a classical district heating network for a virtually defined network of 1.3 km length, assuming a space heating load of 204.7 MWh represented by 33 residential buildings. The performance comparison is done for winter operation when space heating demand is present. The simulation results clearly revealed that

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Fedirko, Mykhailo, Ruslan Brukhanskyi, Vasyl Brych, and Ruslana Olishynska. "MODERNIZATION OF THE ELECTRIC DRIVE OF PUMPING UNITS OF THE DISTRICT HEATING NETWORK IN THE CONTEXT OF INCREASING THEIR ENERGY EFFICIENCY." Energy saving. Power engineering. Energy audit., no. 5-6(183-184) (November 23, 2023): 27–40. http://dx.doi.org/10.20998/2313-8890.2023.05.03.

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Quantitative and qualitative indicators of the modernization of the electric drive of a pumping unit of a network with throttle control of the coolant supply of a centralized heat supply system are determined. The possibility of modernizing the electric drive by replacing outdated electric motors of energy efficiency class IE1, which are still used in electric drives of pumping units, with electric motors of energy efficiency classes IE2 and IE3 from different manufacturers, has been substantiated. The energy consumption was calculated based on the technical data of the pump and electric motor

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11

Xu, Feng, Yuanchao Tao, Peng Qiu, et al. "Optimal operation of district heat-electric system considering multi-energy flexibility." IOP Conference Series: Earth and Environmental Science 983, no. 1 (2022): 012024. http://dx.doi.org/10.1088/1755-1315/983/1/012024.

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Abstract With increasingly integration of the renewable energy, various uncertainties bring a severe challenge to the operation of the district heat-electric system (DHES). In order to enlarge the accommodation of renewable energy, this paper proposes an optimal operation method of integrated electricity and heat system considering the temporal-coupling feature of multi-energy flexibility. Firstly, the models of multi-energy devices are established to describe the energy conversion. The time delay of heat network is considered and the model of DHES is built as well. Then, considering the uncer

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Krasnikova, Irina, Irina Dyakonova, and Svetlana Grigoreva. "Use of simulation modeling in the modernization of the Moscow district transport network for the operation of electric buses." E3S Web of Conferences 535 (2024): 04002. http://dx.doi.org/10.1051/e3sconf/202453504002.

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The paper presents the development of simulation model of public transportation system of Alekseevsky district of North-Eastern administrative district of Moscow. Such model allows estimating the possibility of replacement of the existing rolling stock by electric buses. The analysis of existing transport flows is made for this purpose. Key objects, their quantitative and qualitative characteristics, features of interaction are allocated in the form of parametric models. All these are input parameters and interaction rules. The obtained results allow evaluating the options for modernization of

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Volkova, Anna, Aleksandr Hlebnikov, Aleksandr Ledvanov, Tanel Kirs, Urmas Raudsepp, and Eduard Latõšov. "District Cooling Network Planning. A Case Study of Tallinn." International Journal of Sustainable Energy Planning and Management 34 (May 25, 2022): 63–78. http://dx.doi.org/10.54337/ijsepm.7011.

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The planning procedure for district cooling as an urban system was presented and carried out using the example of the Tallinn city centre. The following steps were described in detail: cooling demand determination, cooling generation planning and cooling transition analysis. Based on the three proposed methods (average specific cooling load, satellite imagery analysis of a specific building, counting the number of fans in dry coolers and the combination method), the cooling capacity of the evaluated district was estimated at 63.2 MW. In terms of cooling generation, the analysis shows that seaw

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14

Khomutov, Stanislav O., and Nikolay A. Serebryakov. "Creation of a short-term load forecasting neural network model of electrical engineering complex of section regional electric grid 6-35 kV." Transportation Systems and Technology 6, no. 1 (2020): 80–91. http://dx.doi.org/10.17816/transsyst20206180-91.

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Aim: Is developing of short-term load forecasting math model of the electrical engineering complex of the district regional electric grid 6-35 kV with the use of artificial neural networks. Methods: The tools of regression analysis and deep machine learning were used in the work. Results: The neural network model for short-term load forecasting of the electrical engineering complex of section regional electric grid 6-35 kV, which considered factors of time, meteorological conditions, disconnections of individual power transmission lines, the operation mode of electricity consumers

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15

Balzamov, D. S., V. V. Bronskaya, A. A. Lubnina, et al. "Improving the reliability of the energy supply to the district boiler house." Journal of Physics: Conference Series 2094, no. 5 (2021): 052033. http://dx.doi.org/10.1088/1742-6596/2094/5/052033.

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Abstract Currently, measures are being worked out at generation facilities, in particular at district boiler houses, the implementation of which will increase the reliability of both individual elements of the system and the entire energy supply system as a whole, improve its technical and economic indicators, and achieve the target financial indices of the enterprise. As one of such measures, the article considers the ways of organizing a mini-TPP (thermal power plant) on the example of a large district boiler house for the purpose of energy supply for their own needs. This solution will incr

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Pyatin, Andrey, Aleksander Shempelev, and Ekaterina Popova. "Improving the efficiency of heating boiler plants by using the variable-frequency drive with different methods of heat supply regulation." MATEC Web of Conferences 245 (2018): 07020. http://dx.doi.org/10.1051/matecconf/201824507020.

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The aim of the work is to improve the energy efficiency of heating boiler plants by reducing the spe-cific electric energy consumption for heat supply by using the variable-frequency drive (VFD) with different methods of heat supply regulation. Hydraulic and thermal calculations of the heating net-work are performed on the example of the real district heating system. Heat network temperature charts of district heating are selected and calculated considering preservation of high quality of district heating. The description of the calculation algorithm of the research and the results of the calc

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17

Richert, Thibaut Pierre, Tue Vissing Jensen, Oliver Gehrke, and Henrik WIlliam Bindner. "Operation of supermarket refrigeration units: a coupled district heating and electric network approach." IET Energy Systems Integration 2, no. 2 (2020): 80–91. http://dx.doi.org/10.1049/iet-esi.2019.0059.

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Croce, Vincenzo, Giuseppe Raveduto, Matteo Verber, and Denisa Ziu. "Combining Machine Learning Analysis and Incentive-Based Genetic Algorithms to Optimise Energy District Renewable Self-Consumption in Demand-Response Programs." Electronics 9, no. 6 (2020): 945. http://dx.doi.org/10.3390/electronics9060945.

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The recent rise of renewable energy sources connected to the distribution networks and the high peak consumptions requested by electric vehicle-charging bring new challenges for network operators. To operate smart electricity grids, cooperation between grid-owned and third-party assets becomes crucial. In this paper, we propose a methodology that combines machine learning with multi-objective optimization to accurately plan the exploitation of the energy district’s flexibility with the objective of reducing peak consumption and avoiding reverse power flow. Using historical data, acquired by th

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19

Rakhimov, O. S., D. N. Mirzoev, and E. I. Grachieva. "Experimental study of quality and electricity losses in low voltage rural electric networks." Power engineering: research, equipment, technology 23, no. 3 (2021): 209–22. http://dx.doi.org/10.30724/1998-9903-2021-23-3-209-222.

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THE PURPOSE. Due to the increase in the number of farms in the Devashtichsky district of the Sughd region of Tajikistan, over the past 3-4 years, a disproportionate distribution of electricity in the 0.4 kV network has been observed. Unbalance currents of phase loads in relation to asymmetric phase voltages at the terminals of consumers of a three-phase network cause additional losses of electricity, which can reach 21% of the standard losses. In the decree of the President of the Republic of Tajikistan dated May 10, 2009 No. 29 “On energy saving and reduction of electricity losses” it is indi

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Rakhimov, O. S., D. N. Mirzoev, and E. I. Grachieva. "Experimental study of quality and electricity losses in low voltage rural electric networks." Power engineering: research, equipment, technology 23, no. 3 (2021): 224–37. http://dx.doi.org/10.30724/1998-9903-2021-23-3-209-224-237.

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THE PURPOSE. Due to the increase in the number of farms in the Devashtichsky district of the Sughd region of Tajikistan, over the past 3-4 years, a disproportionate distribution of electricity in the 0.4 kV network has been observed. Unbalance currents of phase loads in relation to asymmetric phase voltages at the terminals of consumers of a three-phase network cause additional losses of electricity, which can reach 21% of the standard losses. In the decree of the President of the Republic of Tajikistan dated May 10, 2009 No. 29 “On energy saving and reduction of electricity losses” it is indi

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21

Wang, Cheng, Zhou Gao, Peng Yang, Zhenpo Wang, and Zhiheng Li. "Electric Vehicle Charging Facility Planning Based on Flow Demand—A Case Study." Sustainability 13, no. 9 (2021): 4952. http://dx.doi.org/10.3390/su13094952.

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The location of electric vehicle charging facilities is of great significance in promoting the use of electric vehicles. Most existing electric vehicle location models, including the flow refueling location model (FRLM) and its flexible reformulation (FRFRLM), are based on flow demand. At present, these models cannot effectively deal with large-scale traffic networks within a limited time, and there has been little comparison of their relative benefits and limitations. Additionally, there have been few evaluations of the actual construction and location of charging facilities in cities. This p

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Maninnerby, Bergerland, Lazarou, and Theocharis. "Electric Vehicle Penetration in Distribution Network: A Swedish Case Study." Applied System Innovation 2, no. 3 (2019): 19. http://dx.doi.org/10.3390/asi2030019.

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This study aims to simulate the use of renewable energy in the form of different energy sources, such as solar cells, district heating, and in the presence of battery storage and for high penetration of electric vehicles in a typical Swedish power grid. The EnergyPLAN software is used. The purpose is to examine the demands in order to cope with the needs that may arise and to create a better understanding of how renewable energy affects the power balance and future investments in the case of a typical Swedish distribution system. The importance of this research is mainly based on the fact that

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Branchini, Lisa, Andrea De Pascale, Francesco Melino, and Noemi Torricelli. "Optimum Organic Rankine Cycle Design for the Application in a CHP Unit Feeding a District Heating Network." Energies 13, no. 6 (2020): 1314. http://dx.doi.org/10.3390/en13061314.

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Improvement of energy conversion efficiency in prime movers has become of fundamental importance in order to respect EU 2020 targets. In this context, hybrid power plants comprising combined heat and power (CHP) prime movers integrated with the organic Rankine cycle (ORC) create interesting opportunities to additionally increase the first law efficiency and flexibility of the system. The possibility of adding supplementary electric energy production to a CHP system, by converting the prime movers’ exhaust heat with an ORC, was investigated. The inclusion of the ORC allowed operating the prime

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Sun, Bo. "Study on Charging Method with Electric Vehicle Plug-in Distributed Network of Residential District." Journal of Information and Computational Science 11, no. 18 (2014): 6825–35. http://dx.doi.org/10.12733/jics20105056.

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Javanshir, Nima, and Sanna Syri. "Techno-Economic Analysis of a Highly Renewable and Electrified District Heating Network Operating in the Balancing Markets." Energies 16, no. 24 (2023): 8117. http://dx.doi.org/10.3390/en16248117.

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In pursuit of Finland’s carbon neutrality objective by 2035, integrating renewable energy sources into the power grid is essential. To address the stochastic nature of these resources, additional sources of flexibility are required to maintain grid stability. Meanwhile, district heating network (DHN) operators in Finland are decommissioning fossil fuel-based combined heat and power plants (CHPs) and electrifying heating systems with heat pumps (HPs) and electric boilers. A techno-economic assessment and the optimized operation of DHN-connected HPs and electric boilers in providing ancillary ba

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Suraweera, S. A. T. U. W. K., and K. P. S. C. Jayaratne. "RF-EMR pollution levels near kindergartens due to mobile communication towers and Wi-Fi sources." Sri Lankan Journal of Physics 24, no. 1 (2023): 1–17. http://dx.doi.org/10.4038/sljp.v24i1.8117.

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Wireless communications play a crucial role in human lives. The introduction of cellular network systems, broadband internet services and public Wi-Fi services increase the connectivity between people exponentially. These wireless networks require antenna structures to propagate carrier waves through space and these waves are located within the Radiofrequency (RF) region in the electromagnetic spectrum. The effects of these RF waves on people, especially children, and pregnant women cannot be neglected. According to the researchers, there are some adverse health issues related to thermal and n

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Zapanov, Oleg V., and Lidiia I. Kovernikova. "On the power quality of electrical energy supplied to joint stock company “Aleksandrovsky mine”." E3S Web of Conferences 209 (2020): 07012. http://dx.doi.org/10.1051/e3sconf/202020907012.

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Joint Stock Company (JSC) “Mine Aleksandrovsky” is located in the Mogochinsky district of the Trans-Baikal Territory. “Mine Aleksandrovsky” concluded an energy supply agreement with JSC “Chitaenergosbyt” for the purchase of electric energy from it. In accordance with the contract, the electric energy supplier undertakes to supply electric energy that meets the requirements of the current legislation of the Russian Federation. The power quality in the Trans-Baikal Territory in most regions does not meet the requirements of State Standard 32144-2013. Suppliers and the network organization are re

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Latosov, Eduard, Anna Volkova, Andres Siirde, Martin Thalfeldt, and Jarek Kurnitski. "The Impact of Parallel Energy Consumption on the District Heating Networks." Environmental and Climate Technologies 23, no. 1 (2019): 1–13. http://dx.doi.org/10.2478/rtuect-2019-0001.

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Abstract The aim of this study is to evaluate and compare the impacts of heat recovery ventilation (HRV) and exhaust air heat pump (EAHP)-based solutions used in renovated buildings, which make it possible to reach performance class C in district heating (DH) area CO2 emissions, primary energy consumption and total energy costs for consumers. Evaluation is based on the methodology presented in the previous research paper [1]. Calculation results show that the use of EAHP has a negative impact on DH sustainability (heat losses in the DH network, DH heat price, reduced consumption of DH heat) an

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Grzebielec, Andrzej, Artur Rusowicz, Maciej Jaworski, and Rafał Laskowski. "Possibility of using adsorption refrigeration unit in district heating network." Archives of Thermodynamics 36, no. 3 (2015): 15–24. http://dx.doi.org/10.1515/aoter-2015-0019.

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Abstract Adsorption refrigeration systems are able to work with heat sources of temperature starting with 50 °C. The aim of the article is to determine whether in terms of technical and economic issues adsorption refrigeration equipment can work as elements that produce cold using hot water from the district heating network. For this purpose, examined was the work of the adsorption air conditioning equipment cooperating with drycooler, and the opportunities offered by the district heating network in Warsaw during the summer. It turns out that the efficiency of the adsorption device from the ec

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Polkovskaya, M. N., and M. A. Yakupova. "Analysis of the Causes of Emergency Shutdowns on Electric Networks." Journal of Physics: Conference Series 2096, no. 1 (2021): 012130. http://dx.doi.org/10.1088/1742-6596/2096/1/012130.

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Abstract The paper analyses the causes of emergency outages on electric networks according to the data of the Pravoberezhny district of Irkutsk for 2008-2017, according to which 82% of failures of elements of the electric network are caused by breakdowns and equipment failure; 9% are due to the influence of external factors; 5% occurred due to natural and climatic reasons, 4% – due to other circumstances. The largest number of outages due to operational reasons occurs due to damage to cable and overhead lines. Accidents caused by the influence of external factors are mainly associated with the

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Popadchenko, S.A., and S.M. Dudnikov. "Prospects for the development of rural Smart Grids." Engineering of nature management, no. 1(23) (March 22, 2022): 120–25. https://doi.org/10.5281/zenodo.6824085.

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On the way to the development of intelligent rural electricity networks, there are problems associated with changing the structure of generation and consumption of electricity, which can be solved only by the transition to digital energy. The analysis of the development of intelligent networks in the world and the main practical achievements of digitalization are carried out in the work. The strategic ways of development of rural electric networks and stages of complex modernization of electric network infrastructure with application of the modern electrotechnical equipment and digital technol

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Ghirardi, E., G. Brumana, and G. Franchini. "Comparison between cold and hot network in a solar district cooling system." Journal of Physics: Conference Series 2893, no. 1 (2024): 012031. https://doi.org/10.1088/1742-6596/2893/1/012031.

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Abstract Heat-powered absorption cooling have attracted attention in recent decades, especially in regions with hot and arid climates a higher availability of solar radiation, can be exploited in solar-assisted District Cooling (SDC) system to reduce costs. The paper proposes a comparison of two Solar District Cooling configurations powered by a PTC field with thermal storage and an absorption chiller. The first configuration, called cold network, has a large hot water storage tank slaved to a single chiller that produces all the chilled water that is distributed to the network; in the second

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Wang, Jinhao, Huaichang Ge, Yang Yang, Zhaoguang Pan, Yizhao Liu, and Haotian Zhao. "Collaborative Service Restoration with Network Reconfiguration for Resilience Enhancement in Integrated Electric and Heating Systems." Electronics 12, no. 18 (2023): 3792. http://dx.doi.org/10.3390/electronics12183792.

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Coordinated fault recovery is essential for the resilience enhancement of integrated electric and heating systems (IEHS) following natural catastrophes as the linkage of the power distribution system (PDS) and district heating system becomes tighter. DHS reconfiguration is a viable method for service restoration because it could adjust the energy between energy sources and achieve uninterrupted energy supplies. In this paper, a collaborative service restoration model considering DHS reconfiguration is proposed to achieve better recovery after natural disasters. DHS reconfiguration could guaran

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Wang, Jinhao, Zhaoguang Pan, Shengwen Li, Huaichang Ge, Gang Yang, and Bin Wang. "Optimal Scheduling of Virtual Power Plant Considering Reconfiguration of District Heating Network." Electronics 12, no. 16 (2023): 3409. http://dx.doi.org/10.3390/electronics12163409.

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A combined heat and power virtual power plant (CHP-VPP) can effectively control the distributed resources in an electric–thermal coupling system and solve the problem of lack of flexibility caused by large-scale renewable energy grid connection. Similar to the optimal reconfiguration of distribution network topology by operating switches, the district heating system is also equipped with tie and sectionalizing valves to realize the optimal adjustment of district heating network (DHN) topology, which provides an economical and effective method for improving the power system’s flexibility. Based

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Buffa, Simone, Anton Soppelsa, Mauro Pipiciello, Gregor Henze, and Roberto Fedrizzi. "Fifth-Generation District Heating and Cooling Substations: Demand Response with Artificial Neural Network-Based Model Predictive Control." Energies 13, no. 17 (2020): 4339. http://dx.doi.org/10.3390/en13174339.

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District heating and cooling (DHC) is considered one of the most sustainable technologies to meet the heating and cooling demands of buildings in urban areas. The fifth-generation district heating and cooling (5GDHC) concept, often referred to as ambient loops, is a novel solution emerging in Europe and has become a widely discussed topic in current energy system research. 5GDHC systems operate at a temperature close to the ground and include electrically driven heat pumps and associated thermal energy storage in a building-sited energy transfer station (ETS) to satisfy user comfort. This work

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Shehadeh, Maha, Emily Kwok, Jason Owen, and Majid Bahrami. "Integrating Mobile Thermal Energy Storage (M-TES) in the City of Surrey’s District Energy Network: A Techno-Economic Analysis." Applied Sciences 11, no. 3 (2021): 1279. http://dx.doi.org/10.3390/app11031279.

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The City of Surrey in British Columbia, Canada has recently launched a district energy network (DEN) to supply residential and commercial buildings in the Surrey Centre area with hot water for space and domestic hot water heating. The network runs on natural gas boilers and geothermal exchange. However, the City plans to transition to low-carbon energy sources and envisions the DEN as a key development in reaching its greenhouse gas emissions (GHG) reduction targets in the building sector. Harvesting and utilizing waste heat from industrial sites using a mobile thermal energy storage (M-TES) i

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Testi, Daniele, Paolo Conti, Eva Schito, Luca Urbanucci, and Francesco D’Ettorre. "Synthesis and Optimal Operation of Smart Microgrids Serving a Cluster of Buildings on a Campus with Centralized and Distributed Hybrid Renewable Energy Units." Energies 12, no. 4 (2019): 745. http://dx.doi.org/10.3390/en12040745.

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Micro-district heating networks based on cogeneration plants and renewable energy technologies are considered efficient, viable and environmentally-friendly solutions to realizing smart multi-energy microgrids. Nonetheless, the energy production from renewable sources is intermittent and stochastic, and cogeneration units are characterized by fixed power-to-heat ratios, which are incompatible with fluctuating thermal and electric demands. These drawbacks can be partially overcome by smart operational controls that are capable of maximizing the energy system performance. Moreover, electrically

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Cappiello, Francesco Liberato, Luca Cimmino, Marialuisa Napolitano, and Maria Vicidomini. "Thermoeconomic Analysis of Biomethane Production Plants: A Dynamic Approach." Sustainability 14, no. 10 (2022): 5744. http://dx.doi.org/10.3390/su14105744.

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This work analyses the two most diffused technologies for biogas upgrading, namely water scrubbing and membrane separation. In order to carry out such analysis, these two technologies are coupled with photovoltaic panels and an electric energy storage system. The optimal water scrubbing renewable plant achieves a primary energy saving of 5.22 GWh/year and an operating cost saving of 488 k€/year, resulting in the best plant. It was compared to a reference system based on a cogenerator unit, directly supplied by biogas, producing thermal and electric energy, and delivered to the district heating

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Sudarmojo, Yanu Prapto. "Optimization of Placement and Size of Distribution Generators Using Quantum Genetic Algorithms to Improve Power Quality in Bali Distribution Networks." Journal of Electrical, Electronics and Informatics 3, no. 1 (2019): 1. http://dx.doi.org/10.24843/jeei.2019.v03.i01.p01.

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World energy requirement increased significantly, the main energy source from an oil is very limited. This problem drive an enhancement develop which support small scale generator to be connected near distributed network or near load center. Distributed Generator (DG) is a power plant which have a little capacity range between 15 kW to 10 MW. Basically, DG instalation is one way to fix a voltage profile where an installed DG would inject voltage to a transmission system or electric power distribution. Bali is a tourism area which it’s electric power source got a supply from Java and some

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Li, Wei, Yi Huang, and Fang Min Wang. "Research on Sitting Transformer Substations in Rural Areas Based on Improved Genetic Algorithm." Applied Mechanics and Materials 490-491 (January 2014): 1652–56. http://dx.doi.org/10.4028/www.scientific.net/amm.490-491.1652.

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The process of urbanization, Beijing faces a number of environmental problems. Especially in the last few years, there has been constantly sustained fog and haze, which makes the implementation of electric heating in rural areas gradually on the agenda. After the implementation of electric heating, the irrationality of the regional power grid layout will be further amplified. With the rapid growth of electricity load in the planning area, the requirement of the power supply grid reliability and power quality is also increasing. Therefore, on the basis of power load forecasting in consideration

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Sumarno, Edy, Jan Setiawan, and Irawati Irawati. "PEMASANGAN DAN PERBAIKAN INSTALASI PENERANGAN JALAN UMUM BERBASIS SOLAR CELL DI KAMPUNG CIKOLEANG, KABUPATEN BOGOR." Swadimas : Jurnal Pengabdian Kepada Masyarakat 1, no. 2 (2023): 12–15. http://dx.doi.org/10.56486/swadimas.vol1no02.344.

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PJU Solar Power is a public street lighting where the electric power for the lights provided by an independent system obtained from solar energy. This community service activity aims to install and repair solar and LED-based street lights. The durability of solar panels and LED modules, self-dependent and without an electric power network is the reason for choosing solar and LED-based street lights. This activity was carried out in Cikoleang Village, Gunung Sindur District, Bogor Regency. After the installation of a public street lighting electrical system using a solar cell system, the atmosp

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A.K., Reshelyan. "EVALUATION OF TECHNOLOGICAL AND ECONOMIC EFFICIENCY OF THE INTRODUCTION OF A VARIABLE-FREQUENCY DRIVE AT THE CHAUN HEAT AND ELECTRICITY DISTRIBUTION ENTERPRISE." ИННОВАЦИОННЫЕ НАУЧНЫЕ ИССЛЕДОВАНИЯ 2022. 12-5(24) (January 13, 2023): 49–62. https://doi.org/10.5281/zenodo.7535505.

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This article presents the results of the analysis of the operation of the network pumping unit of the Chaun enterprise for the distribution of heat and electricity, taking into account the prospects for the development of the city of Pevek of the Chukotka Autonomous District, the need to replace pumping equipment is substantiated, the performance of pumping units that meet the requirements of operation in the technological minimum mode is determined. The calculation of economic efficiency from the introduction of adjustable electric drives at the pumping unit of the Chaun enterprise for the di

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Capone, Martina, Elisa Guelpa, and Vittorio Verda. "Optimal Installation of Heat Pumps in Large District Heating Networks." Energies 16, no. 3 (2023): 1448. http://dx.doi.org/10.3390/en16031448.

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Power-to-heat technology represents a promising solution for the decarbonization of the energy sector. The installation of large-scale heat pumps within district heating systems is widely recognized to be a cost-effective and competitive way to provide flexibility to the electric system, enhancing the use of intermittent renewable energy sources. The goal of this paper is to show how the economic and environmental benefits provided by the installation of a large-scale heat pump in existing district heating systems vary according to the installation location in different scenarios. To do that,

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Ivanyo, Ya M., I. V. Naumov, and M. N. Polkovskaya. "FAILURE SIMULATION OF ELEMENTS OF THE CITY ELECTRIC NETWORK (10 KV) BY THE EXAMPLE OF THE PRAVOBEREZHNIY DISTRICT OF THE IRKUTSK CITY." Vestnik Altajskogo gosudarstvennogo agrarnogo universiteta, no. 9 (2021): 87–98. http://dx.doi.org/10.53083/1996-4277-2021-203-09-87-98.

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The paper presents mathematical models for probabil-istic evaluation and forecasting of emergency shutdowns in electric networks by the example of the Pravoberezhniy District of the Irkutsk City from 2008 through 2017. At the first stage, the autocorrelation function of the parameter series is determined to estimate its randomness. According to the calculated statistical parameters and the consent criteria, a number of equipmentfailures may be described by a three-parameter gamma distribution. A method of two-level identification of extreme (maximum and minimum) values of the parameter under s

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Oleksandr, Rubanenko, Tokarchuk Oleksii, and Solona Olena. "SIMULATION OF THE WORK OF PHOTOELECTRIC PLANTS." Vibrations in engineering and technology, no. 4(107) (December 23, 2022): 68–74. http://dx.doi.org/10.37128/2306-8744-2022-4-8.

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The article draws attention to the fact that nowadays the demand for energy is not decreasing, but its cost is increasing. The need to research the parameters of photovoltaic modules and the capabilities of microprocessor technology for this is substantiated. It is noted that the scheme of electric distribution networks has become more difficult to operate, and the algorithms and methods of reliable and optimal management of modes are changing due to the modernization of the infrastructure of electricity supply and electricity consumption of the district. Nowadays, renewable energy sources are

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Onohaebi, S. O., and S. T. Apeh. "Electricity Network Planning: The Key to Efficient and Reliable Power Supply to Consumers." Advanced Materials Research 62-64 (February 2009): 172–80. http://dx.doi.org/10.4028/www.scientific.net/amr.62-64.172.

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This paper focuses on the need and procedure for the planning of electrical engineering infrastructure for any district/community in order to enhance reliability and efficiency of power supply to consumers. Almost all the towns/cities in Nigeria are unplanned and this has resulted in haphazard approach to Electricity Network Planning and implementation. A detailed theory, methodology and technical considerations, in compliance with both National and International standards are discussed in this paper. A proposed University campus was used to demonstrate the procedures involved in electricity n

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Li, Ke, Ning Zhou, Lei Wang, Qian He, Hui Quan Zou, and Wei Huang. "A Customer-Focused Electricity Bill Pay Points Siting Model." Advanced Materials Research 588-589 (November 2012): 2064–68. http://dx.doi.org/10.4028/www.scientific.net/amr.588-589.2064.

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In order to solve the electricity bill pay points siting problem for electric power corporation, this paper proposes a hybrid model to optimize the siting of pay points and improve customers’ satisfaction. Different from traditional methods, customer density, queueing time and satisfaction degree, transportation and other factors are all taken into consideration in this model. Finally, a “10-minute electricity bill pay network” is constructed in Zhengdong new district with the application of the model proposed by this paper.

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Ren, Hong Bo, Qiong Wu, Jian Yang, and Yin Yin Ban. "Optimum Siting and Sizing of Distributed Energy Resources Taking into Consideration Hourly Operating Strategies." Advanced Materials Research 953-954 (June 2014): 871–75. http://dx.doi.org/10.4028/www.scientific.net/amr.953-954.871.

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In this paper, a distributed energy resource (DER) system plan and evaluation model is extended to include the design of district heating network. In the model, production and consumption of electric power and heat, power transmissions, transport of fuels to the production plants, transport of water in the district heating pipelines and storage of heat are taken into account. The problem is formulated as a mixed integer linear programming (MILP) model where the objective is to minimize the overall cost of the DER system. The solution gives the DER structure, i.e., which production units, heat

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Rahman, Baishali, Raj Bridgelall, Muhammad Faisal Habib, and Diomo Motuba. "Integrating Urban Air Mobility into a Public Transit System: A GIS-Based Approach to Identify Candidate Locations for Vertiports." Vehicles 5, no. 4 (2023): 1803–17. http://dx.doi.org/10.3390/vehicles5040097.

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Stakeholders expect emerging urban air mobility (UAM) services that use electric vertical takeoff and landing (eVTOL) aircraft to revolutionize transportation systems. However, to be effective, eVTOL facilities, known as vertiports, must seamlessly integrate with the existing multimodal transportation infrastructure. This research analyzes how to best integrate vertiports with the existing public transit network of a city, with San Francisco in the United States as a case study. This study developed a composite optimization model to identify the locations for an optimum number of vertiports wi

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Lin, Da, Chouwei Ni, Xuesong Zhang, and Junhao Huang. "An optimal scheduling method for integrated power and heat system with multiple thermal flexibilities." E3S Web of Conferences 252 (2021): 01016. http://dx.doi.org/10.1051/e3sconf/202125201016.

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Integrated power and heat system (IPHS) is a typical multi-energy system which involves power system and district heating system (DHS). The utilization of thermal flexibilities in the joint operation of power system and district heating system has shown the potential to improve energy efficiency and economic performance. In this paper, an optimal scheduling method for IPHS with multiple thermal flexibilities is proposed. Thermal flexibilities of electric boilers and district heating network (DHN) are modelled and analysed, in which the flexibility of DHN is described by a detailed node-based q

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