Mathematical Modeling of the Combined Heat Supply System of a Solar House
Today, increasing energy efficiency in residential heating systems, saving fuel and energy resources, and improving the efficiency of using devices based on renewable energy sources is an urgent issue. The purpose of the article is to develop a mathematical model of the heat balance and conduct a th...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | Russian |
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Belarusian National Technical University
2022-10-01
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| Series: | Izvestiâ Vysših Učebnyh Zavedenij i Ènergetičeskih ob Edinennij SNG. Ènergetika |
| Subjects: | |
| Online Access: | https://energy.bntu.by/jour/article/view/2198 |
| _version_ | 1797879746685566976 |
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| author | G. N. Uzakov V. L. Charvinski U. Kh. Ibragimov S. I. Khamraev B. I. Kamolov |
| author_facet | G. N. Uzakov V. L. Charvinski U. Kh. Ibragimov S. I. Khamraev B. I. Kamolov |
| author_sort | G. N. Uzakov |
| collection | DOAJ |
| description | Today, increasing energy efficiency in residential heating systems, saving fuel and energy resources, and improving the efficiency of using devices based on renewable energy sources is an urgent issue. The purpose of the article is to develop a mathematical model of the heat balance and conduct a theoretical study of one-story rural houses based on the use of solar energy in a non-stationary mode. To achieve this goal, an experimental one-story solar house with autonomous heat supply was built. The heat supply of the experimental solar house mainly uses solar energy, and when the heat supply load exceeds this load, the traditional boiler device is used. The power supply of the experimental solar house is provided by a solar panel (photovoltaic converter). A heat balance scheme for a solar house with autonomous heat supply and an electrothermal scheme of a physical model are proposed. Based on the proposed schemes, a mathematical model of heat balance and a calculation algorithm based on the heat balance equation of the dynamic state of the heat supply system of a one-story experimental solar house in a non-stationary mode have been developed. On the basis of mathematical modeling, the influence of the heat capacity of the wall structure on the temperature regime of the building was studied. On the basis of the MATLAB-Simulink program, the main temperature characteristics were built, on which the change in the temperature of the internal air of the building was analyzed depending on the ambient temperature. On the basis of the program, a modular scheme of the dynamic model was built. Based on the modular scheme, the results of the experiment on changing the air inside the solar house and the outdoor temperature are presented in the form of a graph. The mathematical model of the thermal balance of the building in dynamic mode and the obtained calculation results are recommended for use in the development of energy-efficient solar houses. |
| first_indexed | 2024-04-10T02:52:16Z |
| format | Article |
| id | doaj.art-90c1380e05d14901a761a7325c624c49 |
| institution | Directory Open Access Journal |
| issn | 1029-7448 2414-0341 |
| language | Russian |
| last_indexed | 2024-04-10T02:52:16Z |
| publishDate | 2022-10-01 |
| publisher | Belarusian National Technical University |
| record_format | Article |
| series | Izvestiâ Vysših Učebnyh Zavedenij i Ènergetičeskih ob Edinennij SNG. Ènergetika |
| spelling | doaj.art-90c1380e05d14901a761a7325c624c492023-03-13T07:41:52ZrusBelarusian National Technical UniversityIzvestiâ Vysših Učebnyh Zavedenij i Ènergetičeskih ob Edinennij SNG. Ènergetika1029-74482414-03412022-10-0165541242110.21122/1029-7448-2023-65-5-412-4211822Mathematical Modeling of the Combined Heat Supply System of a Solar HouseG. N. Uzakov0V. L. Charvinski1U. Kh. Ibragimov2S. I. Khamraev3B. I. Kamolov4Каршинский инженерно-экономический институтБелорусский национальный технический университетКаршинский инженерно-экономический институтКаршинский инженерно-экономический институтКаршинский инженерно-экономический институтToday, increasing energy efficiency in residential heating systems, saving fuel and energy resources, and improving the efficiency of using devices based on renewable energy sources is an urgent issue. The purpose of the article is to develop a mathematical model of the heat balance and conduct a theoretical study of one-story rural houses based on the use of solar energy in a non-stationary mode. To achieve this goal, an experimental one-story solar house with autonomous heat supply was built. The heat supply of the experimental solar house mainly uses solar energy, and when the heat supply load exceeds this load, the traditional boiler device is used. The power supply of the experimental solar house is provided by a solar panel (photovoltaic converter). A heat balance scheme for a solar house with autonomous heat supply and an electrothermal scheme of a physical model are proposed. Based on the proposed schemes, a mathematical model of heat balance and a calculation algorithm based on the heat balance equation of the dynamic state of the heat supply system of a one-story experimental solar house in a non-stationary mode have been developed. On the basis of mathematical modeling, the influence of the heat capacity of the wall structure on the temperature regime of the building was studied. On the basis of the MATLAB-Simulink program, the main temperature characteristics were built, on which the change in the temperature of the internal air of the building was analyzed depending on the ambient temperature. On the basis of the program, a modular scheme of the dynamic model was built. Based on the modular scheme, the results of the experiment on changing the air inside the solar house and the outdoor temperature are presented in the form of a graph. The mathematical model of the thermal balance of the building in dynamic mode and the obtained calculation results are recommended for use in the development of energy-efficient solar houses.https://energy.bntu.by/jour/article/view/2198солнечное излучениетепловое сопротивлениетепловой балансдинамическая модельматематическое моделированиесолнечный дом |
| spellingShingle | G. N. Uzakov V. L. Charvinski U. Kh. Ibragimov S. I. Khamraev B. I. Kamolov Mathematical Modeling of the Combined Heat Supply System of a Solar House Izvestiâ Vysših Učebnyh Zavedenij i Ènergetičeskih ob Edinennij SNG. Ènergetika солнечное излучение тепловое сопротивление тепловой баланс динамическая модель математическое моделирование солнечный дом |
| title | Mathematical Modeling of the Combined Heat Supply System of a Solar House |
| title_full | Mathematical Modeling of the Combined Heat Supply System of a Solar House |
| title_fullStr | Mathematical Modeling of the Combined Heat Supply System of a Solar House |
| title_full_unstemmed | Mathematical Modeling of the Combined Heat Supply System of a Solar House |
| title_short | Mathematical Modeling of the Combined Heat Supply System of a Solar House |
| title_sort | mathematical modeling of the combined heat supply system of a solar house |
| topic | солнечное излучение тепловое сопротивление тепловой баланс динамическая модель математическое моделирование солнечный дом |
| url | https://energy.bntu.by/jour/article/view/2198 |
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