Recent Developments in Solar Energy-Harvesting Technologies for Building Integration and Distributed Energy Generation

Vasiliev, Mikhail; Nur-E-Alam, Mohammad; Alameh, Kamal

doi:10.3390/en12061080

Cited by 96 publications

(48 citation statements)

References 95 publications

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“…The excessive use of fossil fuels could lead to the non-renewable energy reserves being depleted and that demands exploring novel materials and alternative technologies to minimize energy consumption. Besides the traditional industrial ways of "green" energy harvesting, the development of energy-efficient-buildings, building-integrated photovoltaic (BIPV) systems, and window coatings can represent the most sustainable approach to building a pathway toward a fossil-fuel-independent future and decreasing the CO 2 footprint [1][2][3][4][5]. During the last decades, a large number of research works have been dedicated to broadening the practical range of technologies, components (e.g., thin-film coatings), and systems (e.g., "smart windows"), which are expected to lead to substantial improvements in building energy efficiency.…”

Section: Introductionmentioning

confidence: 99%

Optical and Chromaticity Properties of Metal-Dielectric Composite-Based Multilayer Thin-Film Structures Prepared by RF Magnetron Sputtering

et al. 2020

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Coated glass products, and especially the low-emissivity coatings, have become a common building material used in modern architectural projects. More recently, these material systems became common in specialized glazing systems featuring solar energy harvesting. Apart from achieving the stability of optical parameters in multilayer coatings, it is also important to have improved control over the design of visual color properties of the coated glass. We prepare metal-dielectric composite (MDC)-based multilayer thin-film structures using the radio frequency (RF)-magnetron sputtering deposition and report on their optical and chromaticity properties in comparison with these obtained using pure metal-based Dielectric/Metal/Dielectric (DMD) trilayer structures of similar compositions. Experimentally achieved Hunter L, a, b values of MDC-based multilayer building blocks of coatings provide a new outlook on the engineering of future-generation optical coatings with better color consistency and developing approaches to broaden the range of achievable color coordinates and better environmental stability.Low-E coatings can still be expected to represent core technology in advanced windows, whether or not additional technologies are embedded. The Low-E coatings are typically structured as metal-dielectric multilayer thin films, which are designed to prevent heat leakage (from the inside of buildings into the environment) by providing strong and very wide-band reflection of thermal infrared wavelengths.In recent years, the optical properties of metal-dielectric coatings and their influence on building energy efficiency have been studied extensively due to their superior performance compared to other multilayer coating structure types. The metal-dielectric coatings performance mainly depends on the choice of materials and its design philosophy [7][8][9][10][11][12][13][14][15]. Most (or practically all) products available today from this category (featuring high spectral selectivity) employ at least two silver (Ag) layers within their structure, and these coatings cannot withstand prolonged (weeks-scale) exposure to either the ambient atmospheric air or dry-heat test temperatures in excess of 160-180 • C. However, the stability problems of ultrathin Ag layers (normally of less than 20 nm thickness) originate from a range of factors related to the metal layer growth morphology. To overcome these issues, a significant number of research works have been proposed, conducted, and resulted in reporting various solutions, where some of them require more complex materials processing and process parameters optimization [10][11][12][13][14][15][16][17][18][19]. Several reports have been published about the properties of various metal-dielectric composite (MDC) thin-film layer chemistries, including Ag + SiO 2 , Ag + TiO 2 , and Ag + MgF 2 ; however, most of them were about metal-dielectric nanoparticle array properties of interest for various applications [20][21][22][23]. We previously proposed and partially implemented the developmen...

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Section: Introductionmentioning

confidence: 99%

Optical and Chromaticity Properties of Metal-Dielectric Composite-Based Multilayer Thin-Film Structures Prepared by RF Magnetron Sputtering

et al. 2020

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“…The comparison results of the measured data compared to the modelled data for the 9 layer thinfilm filter design are shown in Figure 5. The low-emissivity transmission spectrum-shaping filter presented in Figure 5 will replace the current heat-mirror films employed in ClearVue solar windows [40] which will be installed into a pilot solar green house. Figure 6 illustrates a photograph of the thin-film filter filtering sunlight through a coated glass window.…”

Section: Filter Designs and Fabrication Resultsmentioning

confidence: 99%

Increasing the Energy Savings and Yield of <em>Lactuca sativa</em>, L. in Glass Greenhouses through Illumination Spectral Filtering

Thomas¹,

Vasiliev²,

Nur-E-Alam³

et al. 2020

Preprint

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With the dramatic increase in world population, continued advances in modern greenhouse agriculture and plant growth practices are expected to help overcome the global problem of future food shortages. Next generation greenhouse design practices will need to address a range of issues, ranging from energy and land use efficiency to providing plant-optimised growth techniques. In this paper, we focus on investigating the optimum irradiation spectra matched to the lettuce species (Lactuca sativa, L.), which is commonly grown in greenhouse environments, in order to develop low-emissivity glass panes that maximize the biomass productivity of glass greenhouses. This low-emissivity glass passes the solar spectral components needed for crop growth, while rejecting other unwanted radiations, leading to significant energy savings and other beneficial effects related to greenhouse climate control, in a range of climates. This is due to reducing both the solar heat gain and photosaturation, which can raise the temperature of the crops to harmful levels. Experimental results show that substantial biomass productivity improvements in lettuce (up to ~14.7%) can be attained using spectrally optimized illumination, compared with white light irradiation. We also report on the development of advanced metal-dielectric thin-film filters that produce the optimum illumination spectrum when exposed to sunlight.

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“…Finally, the installation of the photovoltaic panels and their complements was carried out. [14,15]. On the other hand, the autonomous system was installed arduino microcontroller, (allows by programming, to be able to manage and control different devices, in a simple and fast way) for the control of the current and voltage delivered by the photovoltaic panel.…”

Section: Methodsmentioning

confidence: 99%

Autonomous Installations for Monitoring the “Protector Prosperina“ Forest

et al. 2019

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Within the city of Guayaquil, the Protector Prosperina Forest is located, which protects an area rich in biodiversity. To prevent visitors from damaging the forest, the Polytechnic community has established a tourism intervention plan based on sustainability criteria, generating responsible and ecological tourism. Therefore, the project aims to improvement of spaces, signage, and construction of energy systems using renewable energy for lighting and loading of electronic devices, will also, serve as logistical technical support for the operation of the sensor network and information acquisition for the monitoring of diversity forest through audio and video, especially for the protection of those species that are in danger of extinction. In this initiative to raise awareness and promote the protection of the forest and the sustainable use of its resources, autonomous photovoltaic stations have been installed in 5 strategic locations for the development of the aforementioned activities.

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Recent Developments in Solar Energy-Harvesting Technologies for Building Integration and Distributed Energy Generation

Cited by 96 publications

References 95 publications

Optical and Chromaticity Properties of Metal-Dielectric Composite-Based Multilayer Thin-Film Structures Prepared by RF Magnetron Sputtering

Optical and Chromaticity Properties of Metal-Dielectric Composite-Based Multilayer Thin-Film Structures Prepared by RF Magnetron Sputtering

Increasing the Energy Savings and Yield of <em>Lactuca sativa</em>, L. in Glass Greenhouses through Illumination Spectral Filtering

Autonomous Installations for Monitoring the “Protector Prosperina“ Forest

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