ELECTRICAL MODEL OF THE HYBRID PHOTOVOLTAIC THERMAL COLLECTOR

The article is devoted to the creation of electrical models of a hybrid photovoltaic thermal. The objective of the article is to create electrical models of the thermal and photovoltaic parts of the hybrid collector. The paper focuses on the spectrum of solar radiation and shows that absorption occu...

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Дата:2025
Автор: Bondarenko , D.
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Опубліковано: Institute of Renewable Energy National Academy of Sciences of Ukraine 2025
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Vidnovluvana energetika
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author Bondarenko , D.
author_facet Bondarenko , D.
author_institution_txt_mv [ { "author": "D. Bondarenko ", "institution": "Institute of Renewable Energy of NAS of Ukraine, Kyiv, Ukraine" } ]
author_sort Bondarenko , D.
baseUrl_str https://ve.org.ua/index.php/journal/oai
collection OJS
datestamp_date 2026-07-18T06:32:21Z
description The article is devoted to the creation of electrical models of a hybrid photovoltaic thermal. The objective of the article is to create electrical models of the thermal and photovoltaic parts of the hybrid collector. The paper focuses on the spectrum of solar radiation and shows that absorption occurs both in the photovoltaic part and in the thermal part of the hybrid collector. The advantages of combining thermal and photovoltaic parts in one en-ergy-generating device are shown. The construction of a photovoltaic thermal solar collector is shown. A table of electrothermal analogies, both for thermal conductivity and thermal convection, is demonstrated. An approach is presented in which thermal processes of photon absorption are modeled by the creation of phonons. The funda-mental aspects of the choice of modeling values, for example, the flow of entropy instead of the flow of thermal energy, are shown. It is shown that, within the framework of the electrothermal analogy, the calculation of ther-mal processes is reduced to the calculation of electric circuits. Electrical models are created and electrical equa-tions of the created electrical models are recorded. Controlled sources of current and voltage, and derived model-ing resistances in equivalent circuits are shown. A general model of a hybrid photovoltaic thermal collector is constructed, which is placed on a tracker and connected to a pump that pumps the coolant through the thermal part of the collector. This model includes a part that, based on rate equations, shows the separation of photons according to the spectral absorption distribution. Conclusions are drawn, and further research in the direction of connecting storage devices and connecting energy converters using different principles and designs is shown. It was also noted that the use of electrical models is a way to combine generation systems running on various energy sources.
doi_str_mv 10.36296/1819-8058.2025.1(80).44-50
first_indexed 2025-07-17T11:39:50Z
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fulltext 44 Відновлювана енергетика. №1/2025 | Сонячна енергетика УДК 621 https://doi.org/10.36296/1819-8058.2025.1(80)44-50 ELECTRICAL MODEL OF THE HYBRID PHOTOVOLTAIC THERMAL COLLECTOR Received Feb. 13, 2025; accepted Mar. 14, 2025 Available online Apr. 01, 2025 Bondarenko D. Author for correspondence: Bondarenko Dmytro, e-mail: dima7007bond@gmail.com Abstract. The article is devoted to the creation of electrical models of a hybrid photovoltaic thermal. The objective of the article is to create electrical models of the thermal and photovoltaic parts of the hybrid collector. The paper focuses on the spectrum of solar radiation and shows that absorption occurs both in the photovoltaic part and in the thermal part of the hybrid collector. The advantages of combining thermal and photovoltaic parts in one en- ergy-generating device are shown. The construction of a photovoltaic thermal solar collector is shown. A table of electrothermal analogies, both for thermal conductivity and thermal convection, is demonstrated. An approach is presented in which thermal processes of photon absorption are modeled by the creation of phonons. The funda- mental aspects of the choice of modeling values, for example, the flow of entropy instead of the flow of thermal energy, are shown. It is shown that, within the framework of the electrothermal analogy, the calculation of ther- mal processes is reduced to the calculation of electric circuits. Electrical models are created and electrical equa- tions of the created electrical models are recorded. Controlled sources of current and voltage, and derived model- ing resistances in equivalent circuits are shown. A general model of a hybrid photovoltaic thermal collector is constructed, which is placed on a tracker and connected to a pump that pumps the coolant through the thermal part of the collector. This model includes a part that, based on rate equations, shows the separation of photons according to the spectral absorption distribution. Conclusions are drawn, and further research in the direction of connecting storage devices and connecting energy converters using different principles and designs is shown. It was also noted that the use of electrical models is a way to combine generation systems running on various energy sources. Keywords: photovoltaic thermal collector, PV/T-collector, electrical model, electrical-thermal analogy, photons, phonons ЕЛЕКТРИЧНА МОДЕЛЬ ГІБРИДНОГО ФОТОЕЛЕКТРИЧНОГО ТЕПЛОВОГО КОЛЕКТОРА Отримано 13 лют. 2025 р.; рекомендовано до публікації 14 бер. 2025 р. Доступно онлайн 01 квіт. 2025 р. Бондаренко Д. В. Автор для кореспонденції: Бондаренко Дмитро, e-mail: dima7007bond@gmail.com Анотація. Стаття присвячена побудові електричних моделей гібридного фотоелектричного тепло- вого колектора. Метою статті є створення електричних моделей теплової та фотоелектричної ча- стин гібридного колектора. У роботі акцентовано на спектрі сонячного випромінювання й показано, що поглинання відбувається як фотовольтаїчною, так і тепловою частиною гібридного колектора. Показано переваги поєднання теплової та фотоелектричної частини в одному енергогенерувальному пристрої. Показано конструкцію фотоелектричного теплового сонячного колектора. Продемонстро- вана таблиця електротеплових аналогій як для теплопровідності, так і для теплової конвекції. Викла- дено підхід, в якому теплові процеси поглинання фотонів моделюються утворенням фононів. Показані принципові аспекти вибору моделювальних величин, наприклад потоку ентропії замість потоку теп- лової енергії. Показано, що в межах електротеплової аналогії розрахунок теплових процесів зводиться до розрахунку електричних кіл. Побудовані електричні моделі та записані електричні рівняння PhD in Technical Sciences https://orcid.org/0000-0002-5629-930X Institute of Renewable Energy of NAS of Ukraine, Kyiv, Ukraine канд. техн. наук https://orcid.org/0000-0002-5629-930X Інститут відновлюваної енергетики НАН України, м. Київ, Україна 45 Відновлювана енергетика. №1/2025 | Сонячна енергетика побудованих моделей. В еквівалентних схемах показано контрольовані джерела струмів і напруг, та виведені моделювальні опори. Побудована загальна модель гібридного фотоелектричного теплового колектора, який розміщений на трекері й підключений до насоса, який прокачує теплоносій через теп- лову частину колектора. У таку модель вбудовано частину, яка на основі кінетичних рівнянь показує розділення фотонів згідно зі спектральним поглинальним розподілом. Зроблені висновки та показано подальший розвиток досліджень в напрямі доєднання акумулювальних пристроїв та доєднання перет- ворювачів енергії іншого принципу і конструкції. Також відмічено, що використання електричних моде- лей є шляхом до комбінування систем генерації з різними джерелами енергії. Ключові слова: фотоелектричний тепловий колектор, PV/T колектор, електрична модель, електро- теплова аналогія, фотони, фонони. Index terms PV/T – photovoltaic thermal PV – photovoltaic Introduction. Solar radiation is a fundamental natural en- ergy source. It serves as the primary input for generating both electrical and thermal energy. The field of solar energy is experiencing rapid growth and adoption [1, 2]. To conduct research on energy processes involving renewa- ble and conventional energy sources, it is expedient to utilize a device capable of simulating various energy processes and integrating them. Methods of physical and mathematical modeling of technological processes and devices in various fields [3] necessitate the creation of models that accurately and comprehensively represent all energy processes in a complex manner. A promising research method is based on the creation of electrical models and equivalent electrical cir- cuits. Such a device is convenient for modeling electrical pro- cesses and electronic circuits [4], as well as thermal, hydrau- lic, acoustic, mechanical, and other systems and processes. At present, the approach used to simulate thermal pro- cesses is one in which so-called thermal circuits are formed [5], where the elements of the thermal system are repre- sented in a topological form and the thermal processes, such as generation, accumulation, resistance, etc., are dis- played. And then, the thermal circuits are converted into electrical ones, using the same physical principles. The work proposes to apply a different approach. Using the principle of electro-thermal analogies, to move from ther- mal processes, thermal devices and thermal quantities to electrical ones. And then, having electrical analogies, to create electrical circuits that will be electrical models of thermal devices and processes. This approach is more cor- rect and quickly makes the transition from thermal quanti- ties to electrical ones. Setting objectives. Create an electrical model of the PV/T collector, considering both electrical and thermal pro- cesses. Construction. Typically, photovoltaic converters based on semiconductors are used to convert solar energy into elec- trical energy. Solar thermal collectors, on the other hand, are used to convert solar energy into thermal energy. A modern and progressive solution is the combination of these converters into a single photovoltaic thermal (PV/T) collector, where the absorption of photons from the sun occurs in multiple layers simultaneously [6, 7]. One layer is photovoltaic and absorbs photons of the energies required to generate electric current, while another layer absorbs the remaining photons from the solar spectrum to create heat [8] (Fig. 1). Fig. 1. Photovoltaic thermal collector 46 Відновлювана енергетика. №1/2025 | Сонячна енергетика As shown in Figure 1, the solar energy converter is a PV/T collector, which transforms photon flux into electrical and thermal energy. Electrical energy is directly extracted from the photovoltaic part of the collector (PV cells), while ther- mal energy is extracted by a coolant and transferred to the consumer by a pump. Analogies and models. To conduct comprehensive model- ing of systems of various physical nature, it is advisable to reduce all quantities to a single, convenient model. For this purpose, the method of analogies is used [9]. To model electrical and thermal processes in a PV/T collector, it is proposed to represent the thermal part by equivalent elec- trical circuits, i.e., electrical models. The paper [10] shows that, using the corpuscular nature of electromagnetic radiation, an electrical model of the pro- cesses of converting a flow of photons into electric charges and phonons was developed. Note that the main variable in energy conversion, consump- tion and distribution is power. Therefore, the construction of all electrical models must proceed from the general energy variable – power, which is present in all energy phenomena and processes. In turn, the primary and basic concepts in the construction of analogies are basic definitions, such as effort e and flow f, the product of which is power P. 𝑃 = 𝑒 ∙ 𝑓 (1) According to these concepts, Tables 1 and 2 make analogies. Table 1. Analogies for particles Table 2. Analogies for conduction and convection Effort e Flow f Mechanical variable Force F, N Velocity V, м/с Electrical variable Voltage U, V Current I, А Thermal variable (convection) Temperature difference dT, К Flow of coolant V/t, m/s Thermal variable (conduction) Temperature difference dT, К Flow of entropy S/t, J/Ks Thus, a model was created that, using current and voltage sources, simulates the flow of charged particles and pho- nons, and their energy, respectively (Fig. 2). Fig. 2. Electrical model of conversion from photons to charges Electrical equations of a photovoltaic source from Fig.2 are 𝐼𝑜𝑢𝑡 = 𝐼𝑝ℎ + 𝐼𝑈 + 𝐼𝐼 , (2) 𝑈𝑜𝑢𝑡 = 𝑈𝑝ℎ + 𝑈𝑅𝑢 , (3) 𝑈𝑅𝑢 = 𝐼𝑈𝑅𝑈 , (4) where Iph – current of photon-charge conversion; II – cur- rent in internal resistivity of current source; IU – current of voltage source; Iout – output current of a PV-source; RU – internal resistivity of current source; Uph – voltage on pho- ton-charge conversion; URu – voltage on internal resistivity of voltage source; Uout – output voltage of a PV-source. Fig. 3. Electrical model of conversion from photons to pho- nons Electrical equations of a thermal source from Fig.3 are 𝐼𝑡ℎ𝑒𝑟𝑚𝑎𝑙 = 𝐼𝑝𝑛 + 𝐼𝑈𝑝𝑛 + 𝐼𝐼𝑝𝑛 , (5) 𝑈𝑡ℎ𝑒𝑟𝑚𝑎𝑙 = 𝑈𝑝𝑛 + 𝑈𝑅𝑢𝑝𝑛 , (6) 𝑈𝑅𝑢𝑝𝑛 = 𝐼𝑈𝑝𝑛𝑅𝑈𝑝𝑛 , (7) where Ipn – current of photon-phonon conversion; IIpn – par- asitic current that simulates phonon scattering; IUpn – Effort e Flow f Electrical variable Voltage U, V Current I, А Photonic Energy of photon/charge Flow of photons Thermal variable Energy of phonon /quanta of entropy Flow of phonons 47 Відновлювана енергетика. №1/2025 | Сонячна енергетика current in internal resistivity of source; Ithermal – output cur- rent that simulates the source phonon flux; RUpn – internal resistance that models the scattering of source phonons; Upn – voltage that models the conversion of photon energy into phonon energy; URupn – voltage on the simulated inter- nal resistance of the sources; Uthermal – output voltage of a thermal source model. It should be noted that the aforementioned method, utiliz- ing phonons, is useful when considering the process of pho- ton absorption and its conversion into heat. However, this approach is overly complex for modelling propagation as it requires accounting for all modes of vibrational thermal processes. Therefore, it is more appropriate to use an inte- gral method, but also employing the method of analogies. In the case of heat conduction processes, in the vast major- ity of known models, electric current is considered analo- gous to the flow of thermal energy, which is incorrect from a physical standpoint. Therefore, we will consider the en- tropy flow as an analog of electric current, which physically reflects, or rather imitates, the flow of particles during ther- mal motion. The concept of entropy is difficult to represent in thermal circuits, but it is simpler and has a physical mean- ing to transition from entropy to charge, then to current, and to construct a circuit that is an electrical model. Therefore, we conclude that by using analogies, we can un- derstand that the heat conduction processes occurring in the solar collector involve the transfer of thermal energy from the absorber to the coolant, and are characterized by a tem- perature difference and entropy flow. These processes are modeled by electrical circuits. Furthermore, the subsequent forced convection processes occurring in the solar collector, which transfer thermal energy from the collector to the heat consumer using the coolant and are characterized by a tem- perature difference and the amount of coolant pumped per unit of time, are also modeled by electrical circuits. See that there are two mechanisms of heat transfer in the proposed system: heat transfer and forced convection. Ini- tially, the heat from photons is transferred to the heat car- rier, and then the heat carrier transfers the heat to the con- sumer. However, the first step is the process of photon absorption with the conversion into heat. Losses due to the radiation of the PV/T collector during the construction of this model will be neglected. Based on the analogies de- scribed in Table 2, we create an electrical model of thermal processes in the PV/T collector. Thus, when creating a com- plete electrical model, for heat transfer processes, the source is a voltage source, and for convection processes, we choose a current source. Both voltage sources and cur- rent sources can be controlled by both voltage and current. Therefore, the general electrical model (Fig. 3) contains both voltage sources with a series connection of re- sistances, on which dissipation occurs, and a current source with a parallel connection of resistances. Table 2 shows that depending on the heat transfer system, two types of models are formed. One for convection pro- cesses: ∆𝑇 → 𝑈 , (8) 𝑉 𝑡⁄ → 𝐼, (9) where T – temperature difference of the coolant at the inlet and outlet of the heater; V – volume of the coolant that is pumped; t – time. The second model for heat conduction processes: ∆𝑇 → 𝑈 , (10) 𝑆 𝑡⁄ → 𝐼 , (11) where T – temperature difference; S – entropy. In this case, the heat-conducting electrical model will have the following form (Fig. 4): Fig. 4. Electrical model of thermal conductivity Then, for the electrical model we have: 𝑈𝑇𝑡ℎ = 𝐼𝑇𝑡ℎ(𝑅𝑇𝑡ℎ + 𝑅𝑇𝑙𝑜𝑠𝑠𝑒𝑠) , (12) where UTth – voltage source that models the change in tem- perature of the solar thermal collector under the influence of solar radiation; ITth – current that simulates the flow of entropy in the heat-conducting part of the solar thermal collector; RTth – resistance that models the transfer of heat from the collector's absorbing structure to the coolant; RTlosses – resistance that models heat loss in the solar ther- mal collector. When defining resistances, in the sense of entropy, heat dissipation occurs through the conduction of entropy, so we introduce the concept of thermal-entropic resistance or resistance to the flow of entropy. 𝑅𝑇𝑡ℎ = 1 (𝑘1𝐴1𝑇𝑎𝑚𝑏) ⁄ , (13) 𝑅𝑇𝑙𝑜𝑠𝑠𝑒𝑠 = 1 (𝑘2𝐴2𝑇𝑎𝑚𝑏) ⁄ , (14) where k1 – thermal conductivity coefficient of heat transfer from the solar thermal collector structure to the coolant; k2 – thermal conductivity coefficient of the solar thermal collec- tor; А1, А2 – heat transfer area; Тamb – ambient temperature. Subsequently, after heat exchange between the structure and the coolant, thermal energy is transferred to the con- sumer using the coolant, where it gives off heat. Convection heat transfer processes using the coolant are described by the following equation [11, 12]: 48 Відновлювана енергетика. №1/2025 | Сонячна енергетика 𝑄𝑡ℎ = 𝐶𝑝𝑚(𝑇𝑜𝑢𝑡 − 𝑇𝑖𝑛) = 𝐶𝑝𝜌𝑉(𝑇𝑜𝑢𝑡 − 𝑇𝑖𝑛), (15) where Qth – thermal energy that is transferred; Cp – heat capacity of the coolant of the solar thermal collector; m – mass of the coolant of the solar thermal collector; V – vol- ume of coolant of the solar thermal collector;  – density of the coolant of the solar thermal collector; Tin, Tout – coolant temperatures at the inlet and outlet of the solar thermal collector. 𝑃𝑡ℎ = 𝑈𝐼 = (𝑇𝑜𝑢𝑡 − 𝑇𝑖𝑛) 𝐶𝑝𝑚 𝑡 = (𝑇𝑜𝑢𝑡 − 𝑇𝑖𝑛) 𝐶𝑝𝜌𝑉 𝑡 , (16) From where, according to the method of analogies: (𝑇𝑜𝑢𝑡 − 𝑇𝑖𝑛) → 𝑈 (17) 𝐶𝑝𝜌𝑉 𝑡 → 𝐼 (18) Then, since the heat exchange process is fluid pumping, the electrical model has the form (Fig. 5): From where, for this electrical model we have: 𝐼С𝑡ℎ = 𝑈С𝑙𝑜𝑠𝑠𝑒𝑠 𝑅𝐶𝑙𝑜𝑠𝑠𝑒𝑠 + 𝑈𝑜𝑢𝑡 𝑅𝑜𝑢𝑡 , (19) where ICth – current source that models heat transfer by a coolant; Rout – resistance that models the transfer of heat from the coolant to the consumer; Uout - voltage that simu- lates the change in coolant temperature at the load; RClosses – resistance that models heat loss in the coolant during pumping; UClosses– voltage that simulates the decrease in coolant temperature during pumping. Fig. 5. Electrical model of thermal convection 𝑅𝑜𝑢𝑡 = 1 (𝑘3𝐴3𝑇𝑜𝑢𝑡) ⁄ , (20) 𝑅𝐶𝑙𝑜𝑠𝑠𝑒𝑠 = 1 (𝑘4𝐴4𝑇𝑎𝑚𝑏) ⁄ , (21) where k3 – thermal conductivity coefficient at the load for heat removal; k4 – thermal conductivity coefficient of struc- tures through which the coolant is pumped; А3, А4 – corre- sponding heat transfer areas; Тout – heat sink outlet tem- perature. Model of PV/T-collector. The electrical model hybrid PV/T collector has two parts: electric and thermal (Fig. 6). Fig. 6. Electrical model of the photovoltaic thermal collector In Fig. 6, for the thermal part, we obtained a phenomeno- logical model in which the output of the previous subsys- tem is the input data for modeling the subsequent subsys- tem. There, the voltage source UTth is controlled by the voltage Uthermal, and the current source ICth is controlled by ITth. Using the model shown in Figure 6, we can further de- velop this method of constructing a hybrid solar collector 49 Відновлювана енергетика. №1/2025 | Сонячна енергетика with additional equipment. The electrical model in Fig. 7 demonstrates the possibility of connecting a pump for cir- culating a coolant and a solar tracker. This is achieved by including in the model two electric motors, that drive the pump for circulating the coolant [13] and that move the rotary design of the tracker. Furthermore, the model in Fig. 7 includes a component based on rate equations [14, 15] in stationary mode, that simulates the spectral distri- bution of photons and their contributions to both electri- cal and thermal generation. Fig. 7. Electrical model of the photovoltaic thermal collector with pump and tracker Conclusion. In conclusion, it should be noted that when modeling energy processes in PVT collectors, a comprehensive energy analysis must be conducted, since a photovoltaic thermal collector has several energy components. Creating electrical models is a promising and convenient way to calculate systems with PVT collectors and other devices. It should be noted that the use of electrothermal analogies for calculating thermal processes is reduced to the calculation of electric circuits, using a well- known and well-developed calculation apparatus. Modeling thermal processes with the help of electrical models allows you to understand and effectively simulate thermal processes. The models created in the work clearly reflect the thermal and electrical processes in the PV/T collector. It should be noted that the electrical model of the thermal part of the hybrid PV/T collector is a phenomenological model, because different parts of the thermal collector use different heat transfer processes, and accordingly are described by different phenomena and modeled differently. The paper also proposes a new vision of some modeling processes. In particular, an approach is used in which the current in the electrical model of the heat conduction process during heat transfer to the coolant corresponds to the entropy flow, and not the heat energy flow. This representation is more correct from the point of view of fundamental physics. It is also clear that the electrical model of the photovoltaic part of the hybrid PV/T collector presented in the article is an expanded representation of the conventional equivalent circuit of the PV-source [16, 17]. The models presented in the article are generalized and do not consider some less significant phenomena, such as thermal radiation [18]. The presented model and the proposed approach can be developed towards full consideration of losses [19] and dissipative processes [20], and simulations can also be carried out with storages, for example, electrochemical storages of electrical energy [21] or storage tanks of thermal energy. For this, additional voltage sources and capacitors are introduced. Also, a further development of the simulation described above is the addition of other energy converters. Thus, the use of electrical models is a promising development direction for combining systems with different energy natures, which allows to increase the energy characteristics of the resulting system, and using controlled dynamic connections, it is possible to create a flexible distributed generative system [22]. 50 Відновлювана енергетика. №1/2025 | Сонячна енергетика It should also be noted that mathematical simulating software is traditionally used for simulation [23, 24, 25]. But we note that the use of electrical models for simulation of thermal processes allows flexible and convenient simulation of thermal energy sources using well-known software tools for simulation of electric circuits in particular [26, 27]. In addition, the electrical representation of thermal processes and thermal systems allows creating prototypes for physical modeling. REFERENCES 1. Bondarenko D., Matyakh S., Surzhyk Т., Sheiko I. As- pects of the further development of photoenergy ac- cording to the materials of the scientific and practical conference «Renewable energy and energy efficiency in the 21st century» 2023. Vidnovluvana Energetika. 2023. No. 4. Pp. 39–44. doi: 10.36296/1819- 8058.2023.4(75).39-44 2. Kudrya S. O. Renewable energy sources: 2nd edition. Kyiv: Inst. Of renewable energy, 2024. 492 p. https://doi.org/10.36296/monograph-2024 3. Vennikov V. A., Vennikov V. G. Similitude and simulation (as applied to problems of electric power engineering): 3d edition. M.: High school. 1984. 439 p. 4. Chua L., Lin Pen-Min. Computer-aided analysis of elec- tronic circuits. NJ: Prentice-Hall, Inc, 1975. 737 p. 5. Twidell J., Weir A. Renewable energy resources. Lon- don: E.&F.N.Spon, 1990. 392 p. 6. Huaxu Liang, Fuqiang Wang, Luwei Yang, Ziming Cheng, Yong Shuai, Heping Tan. Progress in full spectrum solar energy utilization by spectral beam splitting hybrid PV/T system. Renewable and Sustainable Energy Reviews. 2021. V. 141, 110785, https://doi.org/10.1016/j.rser.2021.110785. 7. Bondarenko, D., Matiakh, S., Surzhyk, T., Sheiko, I. Pho- tovoltaic Thermal Solar Collector for Autonomous and Energy Cluster Modes. Systems, Decision and Control in Energy VI. Studies in Systems, Decision and Control. 2024. V. 552. Springer, Cham. Pp. 373–384. https://doi.org/10.1007/978-3-031-67091-6_16 8. Msirdi N., M’Sirdi N., Benabdellatif M., Tina G. M., Naamane A. Dynamic Coupled Electrical and Thermal Model for PV-T Solar Energy Collectors. EFEA 2018б Va- lencia. 2018. hal-01927535 9. Mechanical–electrical analogies. Retrieved from https://https://en.wikipedia.org/wiki/Mechanical– electrical_analogies . 2024. 10. Bondarenko, D. Developing electrical models to simu- late the conversion of solar radiation into electrical and thermal energy. Vidnovluvana Energetika. 2024. No. 4(79). Pp.59–63. https://doi.org/10.36296/1819- 8058.2024.4(79)59-63 11. Huang L. Y., Wen J. X., Karayiannis T. G., Matthews R. D. Numerical prediction of high efficiency boiler heat exchanger performance. Applied Thermal Engineering. 1998. Vol. 18. Issue 11. Pp.1089–1099. https://doi.org/10.1016/S1359-4311(98)00027-1. 12. Roshanzadeh B., Premer L. R., Mohan G. Developing an Advanced PVT System for Sustainable Domestic Hot Water Supply. Energies. 2022. No. 7. P. 2346. https://doi.org/10.3390/en15072346 13. Bondarenko, D. Modeling of systems with the photovol- taic power source and water pumps. Vidnovluvana Ener- getika. 2024. No. 3(78). Pp.62–68. https://doi.org/10.36296/1819-8058.2024.3(78).62- 68. 14. Hofbauer, Josef; Sigmund, Karl (1998). "Dynamical Sys- tems and Lotka–Volterra Equations". Evolutionary Games and Population Dynamics. New York: Cambridge University Press. Pp. 1–54. 15. Tsang W. Semiconductor injection lasers. Dynamics, modulation, spectrum. M.: Radio and communication, 1990. 320 p. 16. Fahrenbruch A., Bube R. Fundamentals of solar cells. Photovoltaic solar energy conversion. NY: Academic Press Inc., 1983. 580 p. 17. Konuhov S. N. Solar energy systems of space ships. Physical and mathematical modeling. Kharkov: Space university, 2000. 515 p. 18. Howell J. R., Mengüç M. P., Siegel, R. Thermal radiation heat transfer (Sixth ed.). 2016. New York: CRC Press, Taylor & Francis Group. 19. Antonanzas J., Del Amo A., Martinez-Gracia A., Bayod- Rujula A., Antonanzas-Torres F. Towards the optimiza- tion of convective losses in photovoltaic–thermal pan- els, Solar Energy. 2015. Vol. 116. Pp. 323–336. https://doi.org/10.1016/j.solener.2015.04.013. 20. Dissipation. Retrieved from https://en.wikipe- dia.org/wiki/Dissipation. 2024. 21. Bondarenko, D. Equivalent circuits of electric power ac- cumulators connected to solar photocell. Vidnovluvana Energetika. 2019. No.3. Pp.30–34. doi: 10.36296/1819- 8058.2019.3(58).30-34 22. Bondarenko D. Combination of pvt-collectors with using of controlled connections. Vidnovluvana Energetika. 2024. No. 2. Pp.86–91. https://doi.org/10.36296/1819- 8058.2024.2(77).86-91 23. Barbu M., Siroux M., Darie G. Numerical model and par- ametric analysis of a liquid based hybrid photovoltaic thermal (PVT) collector. Energy Reports. 2021. Vol. 7. Pp. 7977–7988. https://doi.org/10.1016/j.egyr.2021.07.058. 24. Arrillaga J. Computer Analysis of Power Systems. John Wiley & Sons, 1990. 376 p. 25. Grigsby L. Power Systems. CRC Press, 2012. 556 p. 26. About PSpice. Retrieved from https://www.pspice.com/about - 2024. 27. Bansal, R. Matlab and its application in engineering. Pearson publication. (2009). https://www.scopus.com/authid/detail.uri?authorId=57090256200 https://www.scopus.com/authid/detail.uri?authorId=58866652900 https://www.scopus.com/authid/detail.uri?authorId=57971234900 https://www.scopus.com/authid/detail.uri?authorId=58961288700 https://doi.org/10.36296/1819-8058.2023.4(75).39-44 https://doi.org/10.36296/1819-8058.2023.4(75).39-44 https://doi.org/10.1016/j.rser.2021.110785 https://doi.org/10.1007/978-3-031-67091-6_16 https://doi.org/10.1016/S1359-4311(98)00027-1 https://doi.org/10.3390/en15072346 https://en.wikipedia.org/wiki/Dissipation https://en.wikipedia.org/wiki/Dissipation https://www.scopus.com/authid/detail.uri?authorId=57090256200 https://doi.org/10.36296/1819-8058.2019.3(58).30-34 https://doi.org/10.36296/1819-8058.2019.3(58).30-34 https://www.scopus.com/authid/detail.uri?authorId=57090256200 https://doi.org/10.36296/1819-8058.2024.1(76).57-61 https://doi.org/10.36296/1819-8058.2024.1(76).57-61 https://doi.org/10.1016/j.egyr.2021.07.058 https://www.pspice.com/about%20-%202024
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spelling veorgua-article-5052026-07-18T06:32:21Z ELECTRICAL MODEL OF THE HYBRID PHOTOVOLTAIC THERMAL COLLECTOR ЕЛЕКТРИЧНА МОДЕЛЬ ГІБРИДНОГО ФОТОЕЛЕКТРИЧНОГО ТЕПЛОВОГО КОЛЕКТОРА Bondarenko , D. photovoltaic thermal collector, PV/T-collector, electrical model, electrical-thermal analogy, photons, phonons фотоелектричний тепловий колектор, PV/T колектор, електрична модель, електро-теплова аналогія, фотони, фонони. The article is devoted to the creation of electrical models of a hybrid photovoltaic thermal. The objective of the article is to create electrical models of the thermal and photovoltaic parts of the hybrid collector. The paper focuses on the spectrum of solar radiation and shows that absorption occurs both in the photovoltaic part and in the thermal part of the hybrid collector. The advantages of combining thermal and photovoltaic parts in one en-ergy-generating device are shown. The construction of a photovoltaic thermal solar collector is shown. A table of electrothermal analogies, both for thermal conductivity and thermal convection, is demonstrated. An approach is presented in which thermal processes of photon absorption are modeled by the creation of phonons. The funda-mental aspects of the choice of modeling values, for example, the flow of entropy instead of the flow of thermal energy, are shown. It is shown that, within the framework of the electrothermal analogy, the calculation of ther-mal processes is reduced to the calculation of electric circuits. Electrical models are created and electrical equa-tions of the created electrical models are recorded. Controlled sources of current and voltage, and derived model-ing resistances in equivalent circuits are shown. A general model of a hybrid photovoltaic thermal collector is constructed, which is placed on a tracker and connected to a pump that pumps the coolant through the thermal part of the collector. This model includes a part that, based on rate equations, shows the separation of photons according to the spectral absorption distribution. Conclusions are drawn, and further research in the direction of connecting storage devices and connecting energy converters using different principles and designs is shown. It was also noted that the use of electrical models is a way to combine generation systems running on various energy sources. Стаття присвячена побудові електричних моделей гібридного фотоелектричного тепло-вого колектора. Метою статті є створення електричних моделей теплової та фотоелектричної ча-стин гібридного колектора. У роботі акцентовано на спектрі сонячного випромінювання й показано, що поглинання відбувається як фотовольтаїчною, так і тепловою частиною гібридного колектора. Показано переваги поєднання теплової та фотоелектричної частини в одному енергогенерувальному пристрої. Показано конструкцію фотоелектричного теплового сонячного колектора. Продемонстро-вана таблиця електротеплових аналогій як для теплопровідності, так і для теплової конвекції. Викла-дено підхід, в якому теплові процеси поглинання фотонів моделюються утворенням фононів. Показані принципові аспекти вибору моделювальних величин, наприклад потоку ентропії замість потоку теплової енергії. Показано, що в межах електротеплової аналогії розрахунок теплових процесів зводиться до розрахунку електричних кіл. Побудовані електричні моделі та записані електричні рівняння побудованих моделей. В еквівалентних схемах показано контрольовані джерела струмів і напруг, та виведені моделювальні опори. Побудована загальна модель гібридного фотоелектричного теплового колектора, який розміщений на трекері й підключений до насоса, який прокачує теплоносій через теплову частину колектора. У таку модель вбудовано частину, яка на основі кінетичних рівнянь показує розділення фотонів згідно зі спектральним поглинальним розподілом. Зроблені висновки та показано подальший розвиток досліджень в напрямі доєднання акумулювальних пристроїв та доєднання перет-ворювачів енергії іншого принципу і конструкції. Також відмічено, що використання електричних моде-лей є шляхом до комбінування систем генерації з різними джерелами енергії. Institute of Renewable Energy National Academy of Sciences of Ukraine 2025-03-31 Article Article application/pdf https://ve.org.ua/index.php/journal/article/view/505 10.36296/1819-8058.2025.1(80).44-50 Vidnovluvana energetika ; No. 1(80) (2025): Scientific and applied Journal renewable energy ; 44-50 Возобновляемая энергетика; ##issue.no## 1(80) (2025): Scientific and applied Journal renewable energy ; 44-50 Відновлювана енергетика; № 1(80) (2025): Науково-прикладний журнал Відновлювана енергетика; 44-50 2664-8172 1819-8058 10.36296/1819-8058.2025.1(80) en https://ve.org.ua/index.php/journal/article/view/505/414 Copyright (c) 2025 D. Bondarenko https://creativecommons.org/licenses/by-nc-nd/4.0
spellingShingle photovoltaic thermal collector
PV/T-collector
electrical model
electrical-thermal analogy
photons
phonons
Bondarenko , D.
ELECTRICAL MODEL OF THE HYBRID PHOTOVOLTAIC THERMAL COLLECTOR
title ELECTRICAL MODEL OF THE HYBRID PHOTOVOLTAIC THERMAL COLLECTOR
title_alt ЕЛЕКТРИЧНА МОДЕЛЬ ГІБРИДНОГО ФОТОЕЛЕКТРИЧНОГО ТЕПЛОВОГО КОЛЕКТОРА
title_full ELECTRICAL MODEL OF THE HYBRID PHOTOVOLTAIC THERMAL COLLECTOR
title_fullStr ELECTRICAL MODEL OF THE HYBRID PHOTOVOLTAIC THERMAL COLLECTOR
title_full_unstemmed ELECTRICAL MODEL OF THE HYBRID PHOTOVOLTAIC THERMAL COLLECTOR
title_short ELECTRICAL MODEL OF THE HYBRID PHOTOVOLTAIC THERMAL COLLECTOR
title_sort electrical model of the hybrid photovoltaic thermal collector
topic photovoltaic thermal collector
PV/T-collector
electrical model
electrical-thermal analogy
photons
phonons
topic_facet photovoltaic thermal collector
PV/T-collector
electrical model
electrical-thermal analogy
photons
phonons
фотоелектричний тепловий колектор
PV/T колектор
електрична модель
електро-теплова аналогія
фотони
фонони.
url https://ve.org.ua/index.php/journal/article/view/505
work_keys_str_mv AT bondarenkod electricalmodelofthehybridphotovoltaicthermalcollector
AT bondarenkod električnamodelʹgíbridnogofotoelektričnogoteplovogokolektora