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Energies
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Solar Energy Harvesting in Northern Territories
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Solar Energy Harvesting in Northern Territories

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A2: Solar Energy and Photovoltaic Systems".

Deadline for manuscript submissions: closed (23 February 2022) | Viewed by 6207

Special Issue Editor

Dr. Stanislav Boldyryev

E-Mail Website
Guest Editor
Faculty of Mechanical Engineering and Naval Architecture, Department of Energy, Power Engineering and Environment, University of Zagreb, Zagreb, Croatia
Interests: heat exchanger networks; heat transfers; energy saving; heat recovery; process integration
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The sun's energy, which reaches the Earth, is most widely used to generate heat and power, both separately and combined. Rapid population growth and urbanization lead to growth of the global economy, which significantly expands the global demand for clean water and energy, affecting sustainable development. Northern territories become more available due to climate change, but the Arctic and permafrost regions' eco-systems are more sensible when affecting pollutants. High transportation cost and other issues limit fossil fuels for heating, ventilation and hot water supply in northern territories. Using fossil fuels for energy generation exhausts the supply of non-renewable resources and damages environmental systems. The application of solar use in many countries was investigated, and global maps show the significant potential of this kind of renewable energy.

The duration of sunshine in northern territories, in some places, is very high, which is favorable for the use of photovoltaic systems or the use of solar energy for hot water supply. The sustainable development of northern territories is naturally associated with energy-saving and enhancement of energy efficiency by applied technologies and equipment, including clean and renewable energy. This current Special Issue focuses on the main problems faced when implementing solar energy in northern territories, which have their features. It is essential within the global energy transition and sustainable energy grids to reduce modern society's environmental pressure.

Dr. Stanislav Boldyryev
Guest Editor

Manuscript Submission Information

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Keywords

  • solar energy
  • renewable energy
  • photovoltaics
  • district heating and cooling
  • energy transition
  • energy efficiency
  • energy planning
  • smart grids

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Published Papers (2 papers)

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Research

22 pages, 87582 KiB  
Article
Simulators for Designing Energy-Efficient Power Supplies Based on Solar Panels
by Oleg Rekutov, Michail Surkov, Danil Lyapunov, Alexey Muravlev, Alexandra Pravikova, Anton Yudintsev, Victor Rulevskiy, Oleg Bubnov and Victor Pchelnikov
Energies 2022, 15(7), 2480; https://doi.org/10.3390/en15072480 - 28 Mar 2022
Cited by 2 | Viewed by 2367
Abstract
Boosted interest in highly efficient power supplies based on renewables requires involving simulators during both the designing stage and the testing one. It is especially relevant for the power supplies that operate in the harsh environmental conditions of northern territories and alike. Modern [...] Read more.
Boosted interest in highly efficient power supplies based on renewables requires involving simulators during both the designing stage and the testing one. It is especially relevant for the power supplies that operate in the harsh environmental conditions of northern territories and alike. Modern solar panels based on polycrystalline Si and GaAs possess relatively high efficiency and energy output. To save designing time and cost, system developers use simulators for the solar panels coupled with the power converters that stabilize the output parameters and ensure the proper output power quality to supply autonomous objects: namely, private houses, small-power (up to 10 kW) industrial buildings, submersible pumps, and other equipment. It is crucial for the simulator to provide a valid solar panel I-V curve in various modes and under different ambient conditions: namely, the consumed power rating, temperature, solar irradiation, etc. This paper considers a solar panel simulator topology representing one of the state-of-the-art solutions. This solution is based on principles of classical control theory involving a pulse buck converter as an object of control. A mathematical model of the converter was developed. Its realization in MATLAB/Simulink confirmed the adequacy and applicability of both discrete and continuous forms of the model during the design stage. Families of I-V curves for a commercially available solar panel within the temperature range from −40 to +25 ∘C were simulated on the model. A prototype of the designed simulator has shown its correspondence to the model in Simulink. The developed simulator allows providing a full-scale simulation of solar panels in various operating modes with the maximum value of the open circuit voltage 60 V and that of the short circuit current 60 A. Issues of statistical processing of experimental data and cognitive visualization of the obtained curves involving the cognitive graphic tool 2-simplex have also been considered within the framework of this research. The simulator designed may serve as a basis for developing a product line of energy-efficient power supplies for autonomous objects based on renewables, including those operating in northern territories. Full article
(This article belongs to the Special Issue Solar Energy Harvesting in Northern Territories)
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18 pages, 9450 KiB  
Article
Hardware and Software Implementation for Solar Hot Water System in Northern Regions of Russia
by Nikolay Tsvetkov, Stanislav Boldyryev, Aleksandr Shilin, Yuriy Krivoshein and Aleksandr Tolstykh
Energies 2022, 15(4), 1446; https://doi.org/10.3390/en15041446 - 16 Feb 2022
Cited by 3 | Viewed by 2684
Abstract
Acceleration of energy transition will become the crucial social, political and technical challenge of the 21st century and will be largely associated with the growing use of renewable energy sources, including solar power. This study provides some experimental results of using solar hot [...] Read more.
Acceleration of energy transition will become the crucial social, political and technical challenge of the 21st century and will be largely associated with the growing use of renewable energy sources, including solar power. This study provides some experimental results of using solar hot water systems (HWS) embedded in apartment buildings located in the energy-efficient district called Zhatay in Yakutsk city, in the Republic of Sakha (Yakutia). The low annual solar fraction of HWS was found for 2019. It is equal to 0.2869 and caused by thermal energy loss from the hydraulic circuit during the nighttime. The study suggests increasing solar fraction in HWS and implementing a software and hardware system. The experimental evaluation of these studies was performed by testing a solar water heating pilot plant in Kaftanchikovo village in Tomsk Region (Western Siberia). As a result of HWS testing, it was found that the annual solar fraction can be significantly increased by preventing the heating agent from night freezing in hydraulic circuits of tube collectors, even when the outdoor temperature is below its freezing point. Full article
(This article belongs to the Special Issue Solar Energy Harvesting in Northern Territories)
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