Influence of the Type of Receiver on Electrical Energy Losses in Power Grids DOI Creative Commons
Zbigniew Kłosowski, Łukasz Mazur

Energies, Journal Year: 2023, Volume and Issue: 16(15), P. 5660 - 5660

Published: July 27, 2023

The development of power electronics, including high-efficiency supply systems, changes the structure perception types electrical energy receivers connected to grid at each voltage level. In past, dominant type were constant impedance devices. Currently, more and devices have supplies, which are most often receivers. construction technological diversity allows mixed receivers, a combination be distinguished. Therefore, there is need determine impact on grid, both in context operation single receiver case branched with high penetration distributed generation. This article will discuss particular emphasis issue losses changing voltages. To simulation studies performed based two stages: first fragment low-voltage household that supplies heating device, analyzed as different receiver; second various consumers photovoltaic installations. research was carried out basis mathematical model network developed by authors using electric multipole method Newton’s method. obtained results show may an losses.

Language: Английский

Polyaniline modified bimetallic hydroxide/ZIF composites as electrode materials for supercapacitors with high capacity and high stability DOI
Jinyue Yang, Jianxin Wang, Chunhua Lou

et al.

Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: 1311, P. 138392 - 138392

Published: April 17, 2024

Language: Английский

Citations

8
Decarbonising cities: exploring regional energy justice implications DOI Creative Commons

Adam Regier,

Anna Berka, Christina E. Hoicka

et al.

Local Environment, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 18

Published: May 6, 2025

Language: Английский

Citations

0
Hydrogen Generation via Catalytic Ammonia Borane Hydrolysis: A Patent Overview DOI Creative Commons

Koyo Matsuda

Published: June 11, 2024

Hydrogen is one of the clean energies that will play an important role in energy selection for coming low-carbon society. Ammonia borane (NH3BH3, abbreviated hereafter as AB) considered a promising hydrogen storage material due to its high content (19.6 wt%), stability under ambient conditions (white powder), and favorable properties dehydrogenation. AB can release via pyrolysis, alcoholysis, hydrolysis, etc. Among these, hydrolysis safe effective route, it proceeds mild presence appropriate catalyst without need additional heat sources. For practical application, develop efficient further improves hydrolytic dehydrogenation AB. Many papers reviews have been published, suggesting research at advanced stage. On other hand, since new technologies are often patented before they put into use, status patent publication significant interest. This mini-review analyzes applications published up 2023 on generation catalytic hydrolysis. The search yielded 99 publications, which were examined not only by country institution but also two representative types catalysts derived from noble metal (abbreviated NM) non-NM. Based analysis, future development was discussed.

Language: Английский

Citations

1
An Elementary Approach to Evaluating the Thermal Self-Sufficiency of Residential Buildings With Thermal Energy Storage DOI
Richard Lüchinger,

Núria Duran Adroher,

Jörg Worlitschek

et al.

ASME Journal of Engineering for Sustainable Buildings and Cities, Journal Year: 2024, Volume and Issue: 5(4)

Published: July 26, 2024

Abstract Thermal energy storage (TES) plays a pivotal role in integrating renewable energy. Nevertheless, there are major challenges the diffusion of TES such as selection optimum system size, integration, and optimization. A key target for using is to increase thermal self-sufficiency building or an entire district. self-sufficiency, unlike total concerns space heating domestic hot water exclusively. Thus, it measures ability meet its demand from local sources. important metric practitioners researchers design, optimization, evaluation systems, especially when considering TES. Unfortunately, no comprehensive method exists literature determining with Energy profiles simulations required determine it. This article aims close this gap presents new evaluating Using approach, upper lower limits derived various heat capacities annual demands, demonstrating impact on system. mathematical model applied case study single-family house illustrates effect different self-sufficiency: small significantly improves 20-kWh reaching 50% while higher values require exponentially larger capacities.

Language: Английский

Citations

1
Fossil Fuel Prospects in the Energy of the Future (Energy 5.0): A Review DOI Creative Commons
Sergey Zhironkin, Fares Abu-Abed

Energies, Journal Year: 2024, Volume and Issue: 17(22), P. 5606 - 5606

Published: Nov. 9, 2024

Achieving the energy and climate goals of sustainable development, declared by UN as imperative relevant for upcoming Society 5.0 with its human-centricity technological requires ensuring a “seamless” Fourth Energy Transition, preserving but at same time modifying role fossil fuels in economic development. In this regard, purpose review is to analyze structure publications field platforms future (Energy 5.0), digital human-centric modernization investment fuel extraction context Transition. To achieve goal, presents comprehensive overview research determining prospects within 5.0, characterized not only dominance renewable sources zero CO2 emissions, also introduction technologies Industry (the Industrial Internet Everything, collaborative artificial intelligence, triplets). It was concluded that further such areas development vector investment, achieving reducing emissions mineral extractive sector itself, developing capture utilization important promising

Language: Английский

Citations

1
Experimental Tests and Simulations About The Efficiency of Commercial Hybrid Inverters Operating at Variable Power Factor DOI Creative Commons
Cristina Ventura, Giuseppe Marco Tina, Massimiliano Maurizio De Benedetti

et al.

Smart Grids and Sustainable Energy, Journal Year: 2024, Volume and Issue: 9(2)

Published: Dec. 3, 2024

Abstract The need to ‘rethink’ the concept of Distribution, both at planning and operational levels, arises from emergence Distributed Generation paradigm, mostly installed in LV networks. existing arrangements for management, protection control distribution networks are typically inadequate this ever-increasing presence Generation. Consequently, national international grid codes have been updated requiring distributed generators be involved by supplying ancillary services, such as voltage frequency regulation. In context, Italian Standards, particular CEI 0–21, require hybrid inverters residential systems, which usually only setup supply active power unity factor, include also possibility being able absorb or reactive energy. This allows limit over / under voltages problems. To aim, inverter manufacturers introduced set factor. These new capabilities exploited paper order study performance with variation considering inductive capacitive behaviour. particular, presented focuses on experimental tests a inverter-based system use aim evaluating dependence efficiency Based measured values, Matlab/Simulink simulator has developed modelling system, using found dependence. main is evaluate systems participate regulation services case factor different unity.

Language: Английский

Citations

0
Storage Optimization (r, Q) Strategy under Condition-Based Maintenance of Key Equipment of Coal-Fired Power Units in Carbon Neutrality Era DOI Creative Commons
Tao Sun, Qiang Zhang, Jing Ye

et al.

Energies, Journal Year: 2023, Volume and Issue: 16(14), P. 5485 - 5485

Published: July 19, 2023

For the safe, stable, and economic operation of thermal power units in new systems, condition-based maintenance mode storage strategy key equipment materials for generation enterprises were selected. According to linkage demand maintenance, a Weibull probability density function was used calculate spare parts demand, an intelligent optimization model with availability constraint established. The application cases cost high-value low-value coal-fired analyzed, respectively, influence different life spans number covered on expounded. results show that borne by single unit is greatly reduced via inventory (r, Q) premise not less than 99.5%.

Language: Английский

Citations

1
Influence of the Type of Receiver on Electrical Energy Losses in Power Grids DOI Creative Commons
Zbigniew Kłosowski, Łukasz Mazur

Energies, Journal Year: 2023, Volume and Issue: 16(15), P. 5660 - 5660

Published: July 27, 2023

The development of power electronics, including high-efficiency supply systems, changes the structure perception types electrical energy receivers connected to grid at each voltage level. In past, dominant type were constant impedance devices. Currently, more and devices have supplies, which are most often receivers. construction technological diversity allows mixed receivers, a combination be distinguished. Therefore, there is need determine impact on grid, both in context operation single receiver case branched with high penetration distributed generation. This article will discuss particular emphasis issue losses changing voltages. To simulation studies performed based two stages: first fragment low-voltage household that supplies heating device, analyzed as different receiver; second various consumers photovoltaic installations. research was carried out basis mathematical model network developed by authors using electric multipole method Newton’s method. obtained results show may an losses.

Language: Английский

Citations

1