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Energies
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Innovations–Sustainability–Modernity–Openness in Energy Research 2022
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Innovations–Sustainability–Modernity–Openness in Energy Research 2022

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A: Sustainable Energy".

Deadline for manuscript submissions: closed (31 May 2023) | Viewed by 4018

Special Issue Editors

Dr. Dorota Anna Krawczyk

E-Mail Website
Guest Editor
Faculty of Civil Engineering and Environmental Sciences, Bialystok University of Technology, Wiejska Street 45A, 15-351 Bialystok, Poland
Interests: energy efficiency; sustainable buildings, renewable energy sources; heating; HVAC; DHW; energy consumption
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Antonio Rodero Serrano

E-Mail Website
Guest Editor
Department of Physics, School of Engineering Sciences of Belmez, University of Córdoba, 14071 Córdoba, Spain
Interests: water treatment; water used in energy production; renewable energy for application in hot domestic water and heating; activation of water by plasma technology; application of activated water
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Iwona Skoczko

E-Mail Website
Guest Editor
Faculty of Civil Engineering and Environmental Sciences, Bialystok University of Technology, Wiejska 45A, 15–351 Białystok, Poland
Interests: water and wastewater treatment; water and wastewater quality; water pollution monitoring; filtration; activated sludge
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear colleagues,

“Innovations–Sustainability–Modernity–Openness in Energy Research 2022” provides an opportunity for scientists from all over the world to present their scientific achievements in the area of environmental and energy engineering. This Special Issue focuses on topics such as energy sources, energy storage, and energy efficiency of HVAC and DHW systems. Moreover, we welcome papers discussing sustainability in construction.

Prof. Dr. Dorota Anna Krawczyk
Prof. Dr. Antonio Rodero Serrano
Prof. Dr. Iwona Skoczko
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • renewable energy
  • wind turbines
  • solar energy
  • hydroelectricity
  • biomass
  • heat pumps
  • energy use in buildings
  • energy efficiency
  • energy storage
  • sustainable energy systems
  • planning of re investments
  • HVAC systems

Published Papers (3 papers)

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Research

17 pages, 2675 KiB  
Article
Practical Aspects of the Energy Efficiency Evaluation of a Water Distribution Network Using Hydrodynamic Modeling—A Case Study
by Dariusz Andraka, Wojciech Kruszyński, Jacek Tyniec, Joanna Gwoździej-Mazur and Bartosz Kaźmierczak
Energies 2023, 16(8), 3340; https://doi.org/10.3390/en16083340 - 09 Apr 2023
Cited by 2 | Viewed by 1356
Abstract
Water and energy are the main natural resources, and their rational use is the basis for sustainable development. Therefore, the energy efficiency of water supply networks is one of the priorities for the management system of water utilities. Many methods and indicators can [...] Read more.
Water and energy are the main natural resources, and their rational use is the basis for sustainable development. Therefore, the energy efficiency of water supply networks is one of the priorities for the management system of water utilities. Many methods and indicators can be used to assess the energy efficiency of water distribution networks (WDNs), and their choice should be adapted to the characteristics of a WDN. This paper presents an energy audit of WDNs that are supplied from five reservoirs located above the supply area, to which water is supplied from four underground and surface water intakes. In the analysis of the system operation, a hydrodynamic computer model of the water distribution network was used to estimate the operating parameters that are necessary to determine the energy efficiency indicators. A new method for calibrating the emitter coefficient used for water loss modeling is also proposed. The conducted audit showed that more than 70% of the energy supplied to the WDS was “lost”, mainly due to friction (37%) and water losses (27%). Thanks to hydraulic modeling, it was possible to indicate that 34% of the energy lost in the system was related to the use of pressure-reducing valves (PRV), and that only 3% was directly related to friction. In turn, the majority of leaks are attributed to service connections (17.4% vs. 8.8% in the water distribution network). Full article
(This article belongs to the Special Issue Innovations–Sustainability–Modernity–Openness in Energy Research 2022)
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13 pages, 2853 KiB  
Article
Analysis of the Use of the PV Installation in the Power Supply of the Water Pumping Station
by Przemysław Średziński, Martyna Świętochowska, Kamil Świętochowski and Joanna Gwoździej-Mazur
Energies 2022, 15(24), 9536; https://doi.org/10.3390/en15249536 - 15 Dec 2022
Cited by 2 | Viewed by 1322
Abstract
Delivering water to consumers uses a lot of electricity. In the era of limited fossil fuel resources, we are increasingly looking at the possibilities of using renewable energy sources to power residential buildings or industries. The research aimed to analyze the potential of [...] Read more.
Delivering water to consumers uses a lot of electricity. In the era of limited fossil fuel resources, we are increasingly looking at the possibilities of using renewable energy sources to power residential buildings or industries. The research aimed to analyze the potential of producing electricity from photovoltaic panels, ensuring electricity supplies for pumping water, and reducing costs. The tests were carried out using the existing photovoltaic (PV) installation with a capacity of 12.3 kW connected to the installation monitoring the production of electricity and monitoring the water-pumping station (WPS). An analysis of the daily electricity production from the PV installation, an analysis of the settlement unit’s demand for water, and an analysis of the costs of pumping water, including the unit cost of pumping 1 m3 of water, were carried out. Studies have shown the possibility of reducing water-pumping costs by more than 77.8% after a PV installation. The tested installation provided 100% of the electricity necessary for WPS for 167 days a year. Full article
(This article belongs to the Special Issue Innovations–Sustainability–Modernity–Openness in Energy Research 2022)
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26 pages, 5641 KiB  
Article
Optimization of the Selected Parameters of Single-Family House Components with the Estimation of Their Contribution to Energy Saving
by Walery Jezierski and Beata Sadowska
Energies 2022, 15(23), 8810; https://doi.org/10.3390/en15238810 - 22 Nov 2022
Cited by 2 | Viewed by 881
Abstract
Knowledge of the influence of factors determining energy consumption in buildings is very important for the possibility of effective energy saving. This article describes the results of an original study on the analysis of the annual energy demand for heating (QH;nd [...] Read more.
Knowledge of the influence of factors determining energy consumption in buildings is very important for the possibility of effective energy saving. This article describes the results of an original study on the analysis of the annual energy demand for heating (QH;nd), cooling (QC;nd), and annual usable energy demand (QH/C;nd = QH;nd + QC;nd) assumed as objective functions of a designed single-family building, which can be classified as a typical representative of currently built houses in Poland. It was assumed that the object of study was located in the climatic conditions of north-eastern Poland. The study takes into consideration three groups of selected parameters: architectural/spatial, structural, and physical properties of windows. The research was carried out in a single-family building, as energy consumption in residential buildings accounts for a significant part of the total energy consumption in buildings. In the group of architectural/spatial parameters, the height of rooms in the building (h) and the window area change coefficient (k) were taken into consideration. The design parameters pertained to the solutions of building components: the density of the material of the inner layer of the external walls (ρ1), the density of the material of internal walls (ρ2), and the thickness of internal walls (d). In the third group of parameters, the heat transfer coefficient of the glazing (Ug) and the total solar transmittance of the glazing (g) were considered. Deterministic mathematical models of these dependencies were developed on the basis of the results of a computational experiment, obtained by performing a simulation with the use of the DesignBuilder software, based on the EnergyPlus computational engine. The models allowed the authors to estimate the degree and nature of the influence of the examined factors on the building’s energy demand. As a result of the optimization of parameters according to the energy criterion, the contribution of each of the three groups of parameters to energy saving was determined. Deterministic numerical optimization using MATLAB was applied. It turned out that the factors from the first group played the most important role in energy savings (40.0%), and the factors from the third group contributed slightly less (25.7%). The contribution of the characteristics from the second group was 4.2% of the total value of energy saving. This information can be useful to scientists, as well as engineers and policymakers, in making correct decisions when designing new residential buildings. Full article
(This article belongs to the Special Issue Innovations–Sustainability–Modernity–Openness in Energy Research 2022)
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