Thermal Time Constant of PV Roof Tiles Working under Different Conditions
This paper presents different types of photovoltaic (PV) roof tiles integrating PV cells with roof covering. Selected elastic photovoltaic roof tiles were characterised for their material and electrical characteristics. Practical aspects of using PV roof tiles are discussed, alongside the benefits a...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-04-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/9/8/1626 |
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| author | Dariusz Kurz Ryszard Nawrowski |
| author_facet | Dariusz Kurz Ryszard Nawrowski |
| author_sort | Dariusz Kurz |
| collection | DOAJ |
| description | This paper presents different types of photovoltaic (PV) roof tiles integrating PV cells with roof covering. Selected elastic photovoltaic roof tiles were characterised for their material and electrical characteristics. Practical aspects of using PV roof tiles are discussed, alongside the benefits and drawbacks of their installation on the roof. Thermal resistance, heat transfer coefficient and thermal capacity were identified for elastic PV roof tiles and roof construction built of boards and PV roof tiles, according to valid standards and legal regulations. The resistance–capacity (RC) models of PV roof tiles and roofs are proposed according to the time constants identified for the analysed systems. The energy balance of the studied systems (PV roof tiles alone and the roof as a whole) is presented, based on which temperature changes in the PV cells of the roof tiles working under different environmental conditions were identified. The timing of PV cells’ temperature change obtained by material data and energy balance analyses were compared. The relationship between the temperature change times of PV cells and the thermal resistance and heat capacity of the whole system are demonstrated, alongside environmental parameters. |
| first_indexed | 2024-12-11T10:13:36Z |
| format | Article |
| id | doaj.art-aa29ba386f4a4235a4b3252f654a8708 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-11T10:13:36Z |
| publishDate | 2019-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-aa29ba386f4a4235a4b3252f654a87082022-12-22T01:11:41ZengMDPI AGApplied Sciences2076-34172019-04-0198162610.3390/app9081626app9081626Thermal Time Constant of PV Roof Tiles Working under Different ConditionsDariusz Kurz0Ryszard Nawrowski1Faculty of Electrical Engineering, Institute of Electrical Engineering and Electronics, Poznań University of Technology, st. Piotrowo 3a, 60-965 Poznań, PolandFaculty of Electrical Engineering, Institute of Electrical Engineering and Electronics, Poznań University of Technology, st. Piotrowo 3a, 60-965 Poznań, PolandThis paper presents different types of photovoltaic (PV) roof tiles integrating PV cells with roof covering. Selected elastic photovoltaic roof tiles were characterised for their material and electrical characteristics. Practical aspects of using PV roof tiles are discussed, alongside the benefits and drawbacks of their installation on the roof. Thermal resistance, heat transfer coefficient and thermal capacity were identified for elastic PV roof tiles and roof construction built of boards and PV roof tiles, according to valid standards and legal regulations. The resistance–capacity (RC) models of PV roof tiles and roofs are proposed according to the time constants identified for the analysed systems. The energy balance of the studied systems (PV roof tiles alone and the roof as a whole) is presented, based on which temperature changes in the PV cells of the roof tiles working under different environmental conditions were identified. The timing of PV cells’ temperature change obtained by material data and energy balance analyses were compared. The relationship between the temperature change times of PV cells and the thermal resistance and heat capacity of the whole system are demonstrated, alongside environmental parameters.https://www.mdpi.com/2076-3417/9/8/1626photovoltaic roof tileheat transfer coefficientthermal resistancethermal capacityenergy yieldRC modelBIPV |
| spellingShingle | Dariusz Kurz Ryszard Nawrowski Thermal Time Constant of PV Roof Tiles Working under Different Conditions Applied Sciences photovoltaic roof tile heat transfer coefficient thermal resistance thermal capacity energy yield RC model BIPV |
| title | Thermal Time Constant of PV Roof Tiles Working under Different Conditions |
| title_full | Thermal Time Constant of PV Roof Tiles Working under Different Conditions |
| title_fullStr | Thermal Time Constant of PV Roof Tiles Working under Different Conditions |
| title_full_unstemmed | Thermal Time Constant of PV Roof Tiles Working under Different Conditions |
| title_short | Thermal Time Constant of PV Roof Tiles Working under Different Conditions |
| title_sort | thermal time constant of pv roof tiles working under different conditions |
| topic | photovoltaic roof tile heat transfer coefficient thermal resistance thermal capacity energy yield RC model BIPV |
| url | https://www.mdpi.com/2076-3417/9/8/1626 |
| work_keys_str_mv | AT dariuszkurz thermaltimeconstantofpvrooftilesworkingunderdifferentconditions AT ryszardnawrowski thermaltimeconstantofpvrooftilesworkingunderdifferentconditions |