Development of a Seawater-proof Hybrid Photovoltaic/thermal (PV/T) Solar Collector

Kroiss, A.; Präbst, Alexander; Hamberger, S.M.; Spinnler, M.; Tripanagnostopoulos, Y.; Sattelmayer, Thomas

doi:10.1016/j.egypro.2014.07.058

Cited by 27 publications

(13 citation statements)

References 12 publications

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“…At this point it should be noted that except of PVT applications for buildings (e.g. for domestic water heating: [2]), PVT systems also provide other types of applications such as desalination [12] and drying of agricultural products [13].…”

Section: Symbols / Abbreviationsmentioning

confidence: 99%

Photovoltaic/thermal (PVT) systems: A review with emphasis on environmental issues

2017

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The present article is a review about PVT (photovoltaic/thermal) investigations with emphasis on studies which include environmental issues about PVT technology. The references analyzed are presented according to certain criteria (e.g. the type of the system: BA (building-added), BI (building-integrated), CPVT (concentrating PVT), etc.). The literature review shows that most of the investigations examine EPBT (energy payback time) and CO 2 emissions. In terms of the types of the systems, most of the studies are about BA PVT/water installations for domestic applications and thereby, more studies (which include environmental issues) are needed e.g. about BIPVT, CPVT, BICPVT and PVT systems for different applications (apart from the building sector), for example industrial. In addition, a separate section with factors which influence PVT from environmental point of view (PV cell material, heat transfer fluid, concentrators, alternative materials, etc.) is included. A critical discussion about these factors is also provided, explaining how they influence the profile of a PVT system from environmental point of view. Moreover, explanations about different methods and indicators which provide (or which can provide as a future prospect) useful information for PVT (from environmental point of view) are also presented.

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Section: Symbols / Abbreviationsmentioning

confidence: 99%

Photovoltaic/thermal (PVT) systems: A review with emphasis on environmental issues

2017

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“…Fig. 30 shows the integration of a thermal absorber with the PV layer by the fixing of rods with springs [31]. The polypropylene absorber is pressed against the back of the PV module by a construction consisting of five aluminium rods, springs, and aluminium strips.…”

Section: Mechanical Fixingmentioning

confidence: 99%

“…It is feasible to make further use of the absorbed heat through a heat pump for one or more of the following purposes, i.e. hot water supply [23][24][25], space heating [26,27], solar cooling [28,29], thermal storage [30], desalination [31], drying [32,33] and pool heating [34,35] etc. Electricity generation from the PV cells, either exported to the national grid or stored in batteries, will meet the electrical load or drive the system component, i.e.…”

Section: Flat-plate Pv/t Modulesmentioning

confidence: 99%

“…Additional fins, V-shaped grooves, rectangular grooves and honeycomb grooves (Fig. 14) can be implemented in order to increase the heat transfer between the fluid and the PV layer [13,20,21,31,64,65]. Different fluids, such as air [20], water [64], phase change material (PCM) [66], thermal oil [67], nanofluids (i.e., dilute nanoparticle suspensions in liquids) [68] etc., can be used as the working medium that passes through the tunnel in one or both directions.…”

Section: Rectangular Tunnel With or Without Fins/groovesmentioning

confidence: 99%

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A review of thermal absorbers and their integration methods for the combined solar photovoltaic/thermal (PV/T) modules

Zhang

Shen

et al. 2017

Renewable and Sustainable Energy Reviews

113

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Thermal absorbers and their integration methods are critical to solar photovoltaic/thermal (PV/T) modules. These two elements directly influence the cooling effort of PV layers and as a result, the related electrical/ thermal/overall efficiency. This paper conducts a critical review on the essential thermal absorbers and their integration methods for the currently-available PV modules for the purpose of producing the combined PV/T modules. A brief overview of different PV/T technologies is initially summarized, including aspects of their structure, efficiencies, thermal governing expressions and their applications. Seven different types of thermal absorbers and four corresponding integration methods are subsequently discussed and summarized in terms of their advantages/disadvantages and the associated application for various PV/T modules. Compared to traditional thermal absorbers, such as sheet-and-tube structure, rectangular tunnel with or without fins/ grooves and flat-plate tube, these four types, i.e. microchannel heat pipe array/heat mat, extruded heat exchanger, roll-bond heat exchanger and cotton wick structure, are promising due to the significant enhancement in terms of efficiency, structure, weight, and cost etc. The appropriate or suitable integration method varies in different cases, i.e. the ethylene-vinyl acetate (EVA) based lamination method seems the best option for integration of PV layer with thermal absorber when compared with other conventional methods, such as direct contact, thermal adhesive and mechanical fixing. Finally, suggestions for further research topics are proposed from five aspects. The overall research results would provide useful information for the assistance of further development of solar PV/T modules with high feasibility for widespread application in energy supply even at district or city-level in the near future.

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“…The literature widely discussed works on the application of photovoltaic-thermal (PVT) solar systems with a low-temperature heat carrier [2], in which the solar cells are placed on a flat cooled walls of different geometry and are protected by thermal glass. The authors of [3] went around this drawback by using a low-temperature heat carrier capacity of the heat exchanger to preheat the salt water in the solar distillers, with the result that increase the productivity of fresh water produce at ≈ 30%. In [4] it is shown that with the use of PVT collector with aluminum reflectors mounted on both sides solar radiation intensity increases from ≈ 43% to ≈ 65%, generates electric power 17% higher, and the heat by 55% higher compared with PVT collectors without concentration.…”

Section: Introductionmentioning

confidence: 99%

Fundamentals of designing hybrid concentrator solar systems

Nesterenkov¹,

Nesterenkov²,

Nesterenkova³

2016

AIP Conference Proceedings

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Abstract. The paper considers the technique of hybrid concentrator solar plants developing with a new design that increases the optical concentration ratio and utilizes additionally diffuse solar radiation. The circulation of heat carrier passes in divided PV modules and thermal collectors circuits on a common carrier platform with the implementation of resetting heat in a counter flow mode in the linear heat exchangers. Described data experiments and calculations of specific performance of electric and thermal energy for different concentration ratio and at different installation latitudes as well as the cost of energy production calculations.

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Development of a Seawater-proof Hybrid Photovoltaic/thermal (PV/T) Solar Collector

Cited by 27 publications

References 12 publications

Photovoltaic/thermal (PVT) systems: A review with emphasis on environmental issues

Photovoltaic/thermal (PVT) systems: A review with emphasis on environmental issues

A review of thermal absorbers and their integration methods for the combined solar photovoltaic/thermal (PV/T) modules

Fundamentals of designing hybrid concentrator solar systems

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