Glazed PVT Collector with Polysiloxane Encapsulation of PV Cells: Performance and Economic Analysis

Matuška, Tomáš; Šourek, Bořivoj; Jirka, Vladimír; Pokorny, Nikola

doi:10.1155/2015/718316

Cited by 21 publications

(9 citation statements)

References 10 publications

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“…In the scientific literature, several approaches exist for how to avoid stagnation by increasing significantly heat losses during the stagnation period, focusing on solar thermal collectors [3] and glazed PVT collectors [4]. The concept of the glazed PVT collector presented in this paper uses polysiloxane gel as a thermally resistant encapsulant for PV cells [5]. The main benefit of the gel is a wide range of operation temperatures (from −60 to +250 • C) [6].…”

Section: Introductionmentioning

confidence: 99%

“…In the case of multifamily buildings, unglazed PVT collectors can be applied for preheating of domestic hot water (DHW) [10]. However, a larger solar thermal fraction of the SDHW system in a multifamily building can be achieved with glazed PVT collectors [5]. Another option for PVT collectors is the application in a combi system not only for preparation of domestic hot water (DHW) but also for heating.…”

Section: Introductionmentioning

confidence: 99%

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Glazed Photovoltaic-thermal (PVT) Collectors for Domestic Hot Water Preparation in Multifamily Building

Pokorny

Matuška

2020

Sustainability

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Photovoltaic–thermal collector generates electrical and thermal energy simultaneously from the same area. In this paper performance analysis of a potentially very promising application of a glazed photovoltaic–thermal collector for domestic hot water preparation in multifamily building is presented. Solar system in multifamily building can be installed on the roof or integrated in the façade of the building. The aim of this simulation study is to show difference of thermal and electrical performance between façade and roof installation of a glazed photovoltaic-thermal collectors at three European locations. Subsequently, this study shows benefit of photovoltaic-thermal collector installation in comparison with side-by-side installation of conventional system. For the purpose of simulation study, mathematical model of glazed photovoltaic-thermal collector has been experimentally validated and implemented into TRNSYS. A solar domestic hot water system with photovoltaic–thermal collectors generates more electrical and thermal energy in comparison with a conventional system across the whole of Europe for a particular installation in a multifamily building. The specific thermal yield of the photovoltaic–thermal system ranges between 352 and 582 kWh/m2. The photovoltaic–thermal system electric yield ranges between 63 and 149 kWh/m2. The increase in electricity production by the photovoltaic–thermal system varies from 19% to 32% in comparison with a conventional side-by-side system. The increase in thermal yield differs between the façade and roof alternatives. Photovoltaic-thermal system installation on the roof has higher thermal yield than conventional system and the increase of thermal yield ranges from 37% to 53%. The increase in thermal yield of façade photovoltaic-thermal system is significantly higher in comparison with a conventional system and ranges from 71% to 81%.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Glazed Photovoltaic-thermal (PVT) Collectors for Domestic Hot Water Preparation in Multifamily Building

Pokorny

Matuška

2020

Sustainability

Self Cite

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“…The effectiveness of the proposed PV systems can be further enhanced by the design elements that we have developed and published earlier, such as using a tracking PV panel stand [21] or mirror concentrators [22]. In references [23] and [24], the authors used the so-called hybrid solar panels to combine photovoltaic and photothermic energy conversion in order to increase efficiency. In the case of the usage of radiation concentrators, it is necessary to choose a reasonable construction and to look for any economic advantage.…”

Section: Discussionmentioning

confidence: 99%

Monitoring of Defects of a Photovoltaic Power Plant Using a Drone

et al. 2019

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Drone infrared camera monitoring of photovoltaic (PV) power plants allows us to quickly see a large area and to find the worst defects in PV panels, namely cracked PV cells with broken contacts. Roofs are suitable for the integration of PV power plants into buildings. The power plant at the Czech University of Life Sciences in Prague, which was monitored by this method, does not show any significant defects, and the produced electric energy exceeds the expected values. On the contrary, the PV power plant in Ladná has visible defects, and the data monitoring system Solarmon-2.0 also indicates defects. Our newly developed data monitoring system Solarmon-2.0 has been successfully used in 65 PV power plants in the Czech Republic and in many PV power plants throughout the world. Data are archived and interpreted in our dispatch area at the Czech University of Life Sciences in Prague. The monitoring system can report possible failure(s) if the measured amount of energy differs from the expected value(s). The relation of the measured values of PV power to the PV panel temperature is justified, which is consistent with the physical theory of semiconductors.

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“…A larger operating temperature range can be achieved by using a special technology for encapsulation of PV cells with polysiloxane gel. This technology is described for example in [29] for the PV solar modules and in [30,31] for Photovoltaic/Photothermal solar modules. The report [32] is related to monitoring of PV panel temperature.…”

Section: Explanation Of the Monitoring System Solarmon-20mentioning

confidence: 99%

New Monitoring System for Photovoltaic Power Plants’ Management

Beránek¹,

Olšan

Libra

et al. 2018

Energies

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An innovative solar monitoring system has been developed. The system aimed at measuring the main parameters and characteristics of solar plants; collecting, diagnosing and processing data. The system communicates with the inverters, electrometers, metrological equipment and additional components of the photovoltaic arrays. The developed and constructed long working system is built on special data collecting technologies. At the generating plants, a special data logger BBbox is installed. The new monitoring system has been used to follow 65 solar plants in the Czech Republic and elsewhere for 175 MWp. As an example, we have selected 13 PV plants in this paper that are at least seven years old. The monitoring system contributes to quality management of plants, and it also provides data for scientific purposes. Production of electricity in the built PV plants reflects the expected values according to internationally used software PVGIS (version 5) during the previous seven years of operation. A comparison of important system parameters clearly shows the new solutions and benefits of the new Solarmon-2.0 monitoring system. Secured communications will increase data protection. A higher frequency of data saving allows higher accuracy of the mathematical models.

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Glazed PVT Collector with Polysiloxane Encapsulation of PV Cells: Performance and Economic Analysis

Cited by 21 publications

References 10 publications

Glazed Photovoltaic-thermal (PVT) Collectors for Domestic Hot Water Preparation in Multifamily Building

Glazed Photovoltaic-thermal (PVT) Collectors for Domestic Hot Water Preparation in Multifamily Building

Monitoring of Defects of a Photovoltaic Power Plant Using a Drone

New Monitoring System for Photovoltaic Power Plants’ Management

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