Special Issue "Innovations-Sustainability-Modernity-Openness in Energy Research 2021"

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

Deadline for manuscript submissions: 30 November 2021.

Special Issue Editors

Prof. Dr. Dorota Anna Krawczyk
E-Mail Website
Guest Editor
Department of HVAC Engineering, Faculty of Civil Engineering and Environmental Sciences, Bialystok University of Technology, 15-351 Bialystok, Poland
Interests: energy consumption; renewable energy; solar systems; wind energy; geothermal energy; biomass; final energy use in buildings; efficiency of HVAC and DHW systems; sustainable energy systems; gas boilers; energy saving versus indoor air quality
Special Issues and Collections 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 and Collections 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 and Collections in MDPI journals

Special Issue Information

Dear Colleagues,

Innovations-Sustainability-Modernity-Openness in Energy Research 2021 provides an opportunity for scientists, engineers, managers and professionals from all over the world to sum up their scientific achievements and to highlight outstanding problems in the area of environmental and energy engineering.  

One of the most important engineering problems nowadays is the growing consumption of energy in the world and its impact on the environment and climate change. Nowadays, society, increasingly based on renewable energies, is searching for high-efficiency and more friendly to the environment solutions, allowing one to reduce the energy consumption that makes the development of new technologies and an exchange of ideas among specialists in this field extremely necessary. We invite experienced researchers, academics, science enthusiasts and young scientists to share results of the latest tests and analyzes. The Special Issue will feature topics that reflect the diversity of the conference, such as energy sources, energy storage, energy efficiency of HVAC and DHW systems, sustainable energy systems, energy policy, energy conversion systems, domestic and industrial use of energy or environmental pollution, however submissions are not limited to these issues.

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 papers will be 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 2000 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

Published Papers (5 papers)

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Research

Article
Cash Flow Optimization for Renewable Energy Construction Projects with a New Approach to Critical Chain Scheduling
Energies 2021, 14(18), 5795; https://doi.org/10.3390/en14185795 - 14 Sep 2021
Viewed by 281
Abstract
This study concerns the use of the critical chain method to schedule the construction of renewable energy facilities. The critical chain method is recognized as a useful project management tool, transforming a stochastic problem of uncertainty in activity durations into a deterministic one. [...] Read more.
This study concerns the use of the critical chain method to schedule the construction of renewable energy facilities. The critical chain method is recognized as a useful project management tool, transforming a stochastic problem of uncertainty in activity durations into a deterministic one. However, this method has some shortcomings. There are no clear principles of grouping non-critical activities into feeding chains. Another ambiguity is sizing the feeding buffers with regard to the topology of the network model and the resulting dependencies between activities, located in different chains. As a result, it is often necessary to arbitrarily adjust the calculated sizes of feeding buffers before inserting them into the schedule. The authors present the new approach to sizing the time buffers in the schedule, enabling a quick assessment of the quality of a given solution variant and finding a solution that best meets the established criteria, conditions, and constraints. The essence of the presented approach is the two-step sizing of time buffers with the use of deterministic optimization and stochastic optimization techniques. Taking into account construction management needs, the optimization criteria are based on the construction project cash flow analysis. The effectiveness of the presented approach is illustrated by an example of developing a wind power plant construction schedule. According to the results, the presented approach ensures the protection of the scheduled completion date of the construction and the stability of the schedule. Full article
(This article belongs to the Special Issue Innovations-Sustainability-Modernity-Openness in Energy Research 2021)
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Article
Analysis of the Social Aspect of Smart Cities Development for the Example of Smart Sustainable Buildings
Energies 2021, 14(14), 4330; https://doi.org/10.3390/en14144330 - 19 Jul 2021
Viewed by 454
Abstract
The concept of a smart city is assumed to use resources more efficiently and in an innovative, creative, and intelligent manner. Initial experience with implementing this concept relates primarily to investments in technology and infrastructure using smart solutions, particularly technical urban infrastructure. An [...] Read more.
The concept of a smart city is assumed to use resources more efficiently and in an innovative, creative, and intelligent manner. Initial experience with implementing this concept relates primarily to investments in technology and infrastructure using smart solutions, particularly technical urban infrastructure. An important social aspect of a smart city—people—cannot not go unnoticed. The inhabitants of a smart city are not only beneficiaries; they participate in its co-creation, initiate activities and are creative. This paper focuses on one of the smart city’s technical infrastructure components, which are intelligent sustainable buildings. This article aims to analyze the factors characterizing smart sustainable buildings (SSB) and the possibilities for their development. For this purpose, a SWOT matrix was developed. The factors of this matrix were subjected to a cause-effect analysis using the DEMATEL method to establish relationships between them. The results of the analysis allowed us to examine the social aspect, i.e., the impact of creators and users of sustainable, intelligent buildings on their development and possibilities for their creative and innovative use in an urban space. Full article
(This article belongs to the Special Issue Innovations-Sustainability-Modernity-Openness in Energy Research 2021)
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Communication
Measurement Uncertainty Estimation for Laser Doppler Anemometer
Energies 2021, 14(13), 3847; https://doi.org/10.3390/en14133847 - 25 Jun 2021
Viewed by 359
Abstract
Twenty percent of global electricity supplied to the buildings is used for preventing air temperature increase; its consumption for this prevention will triple by 2050 up to China’s present needs. Heat removed from the thermal power plants may drive cold generation in the [...] Read more.
Twenty percent of global electricity supplied to the buildings is used for preventing air temperature increase; its consumption for this prevention will triple by 2050 up to China’s present needs. Heat removed from the thermal power plants may drive cold generation in the absorption devices where mass and heat transfer are two-phase phenomena; hence liquid film break-up into the rivulets is extensively investigated, which needs knowledge of the velocity profiles. Laminar flow in a pipe is used in the preliminary study, velocity profile of developed flow is used as a benchmark. The study account writes the applied apparatus with their calibration procedure, and the uncertainty estimation algorithm. The calibration regression line with the slope close to one and a high Pearson’s coefficient value is the final outcome. Therefore, the apparatus may be applied in the principal research. Full article
(This article belongs to the Special Issue Innovations-Sustainability-Modernity-Openness in Energy Research 2021)
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Article
Mitigating the Energy Consumption and the Carbon Emission in the Building Structures by Optimization of the Construction Processes
Energies 2021, 14(11), 3287; https://doi.org/10.3390/en14113287 - 04 Jun 2021
Cited by 3 | Viewed by 1299
Abstract
For decades, among other industries, the construction sector has accounted for high energy consumption and emissions. As the energy crisis and climate change have become a growing concern, mitigating energy usage is a significant issue. The operational and end of life phases are [...] Read more.
For decades, among other industries, the construction sector has accounted for high energy consumption and emissions. As the energy crisis and climate change have become a growing concern, mitigating energy usage is a significant issue. The operational and end of life phases are all included in the building life cycle stages. Although the operation stage accounts for more energy consumption with higher carbon emissions, the embodied stage occurs in a time-intensive manner. In this paper, an attempt has been made to review the existing methods, aiming to lower the consumption of energy and carbon emission in the construction buildings through optimizing the construction processes, especially with the lean construction approach. First, the energy consumption and emissions for primary construction materials and processes are introduced. It is followed by a review of the structural optimization and lean techniques that seek to improve the construction processes. Then, the influence of these methods on the reduction of energy consumption is discussed. Based on these methods, a general algorithm is proposed with the purpose of improving the construction processes’ performance. It includes structural optimization and lean and life cycle assessments, which are expected to influence the possible reduction of energy consumption and carbon emissions during the execution of construction works. Full article
(This article belongs to the Special Issue Innovations-Sustainability-Modernity-Openness in Energy Research 2021)
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Article
The Efficiency of the Biogas Plant Operation Depending on the Substrate Used
Energies 2021, 14(11), 3157; https://doi.org/10.3390/en14113157 - 28 May 2021
Cited by 1 | Viewed by 616
Abstract
The study aimed to assess the most efficient solution of raw material management in selected biogas plants into the concept of circular economy and evaluate the most efficient solution of raw material management in selected biogas plants due to the quality and quantity [...] Read more.
The study aimed to assess the most efficient solution of raw material management in selected biogas plants into the concept of circular economy and evaluate the most efficient solution of raw material management in selected biogas plants due to the quality and quantity of the feed and the final product obtained, which is biogas, as well at the closed circulation (circular economy). The study evaluated two agricultural biogas plants on a real scale and one at the sewage treatment plant (in real scale) in northeastern Poland. A year-long study showed that in technical terms, the best work efficiency is achieved by agricultural biogas plants processing: silage, manure, apple pomace, potato pulp (biogas plant No. 1), followed by biogas plant No. 3 processing chicken manure, decoction, cattle manure, poultry slaughterhouse waste (sewage sludge, flotate, feathers), and finally, the lowest efficiency biogas plant was No. 2, the sewage treatment plant, which stabilized sewage sludge in the methane fermentation process. Moreover, based on the results, it was found that agricultural biogas gives the best efficiency in energy production from 1 ton of feed. Full article
(This article belongs to the Special Issue Innovations-Sustainability-Modernity-Openness in Energy Research 2021)
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