Concentrator performance within a centrally fuel-rich …
Within a gas/particle two-phase testing facility, multi-level concentrators were investigated by obtaining gas/particle two-phase characteristics of each concentrator within a centrally fuel-rich swirl burner.Measurements of velocities, particle volume flux profiles and relative particle number concentrations were obtained and analyzed to assess the …
Optics for concentrating photovoltaics: Trends, limits and
This review should aid the development of solar concentrator optics by highlighting the successful trends and emphasising the importance of novel designs and materials in need of further research. There is a vast opportunity for solar concentrator designs to expand into other scientific fields and take advantage of these developed …
Hydrodynamic Separator for Shallow Applications
system's swirl concentrator and flow controls work together to create a low energy environment, ideal for capturing and storing fine particles and other pollutants of concern.
The dual functioning swirl combined sewer overflow …
The device is capable of functioning efficiently over a wide range of combined sewer overflow rates, and can effectively separate suspended matter at a fraction of the …
Achieving High-Efficiency Large-Area Luminescent Solar …
Luminescent solar concentrators (LSCs) are semitransparent windows that are able to generate electricity from sunlight absorption. LSCs have shown huge promise for realizing building-integrated photovoltaics (BIPV). Unfortunately, to date, the power conversion efficiency (PCE) of LSCs is still very low which dramatically hampers their …
Luminescent solar concentrators for building-integrated
The transition to fully energetically sustainable architecture through the realization of so-called net zero-energy buildings is currently in progress in areas with low population density.
Thin-film micro-concentrator solar cells
Photovoltaic (PV) energy conversion of sunlight into electricity is now a well-established technology and a strong further expansion of PV will be seen in the future to answer the increasing demand for clean and renewable energy. Concentrator PV (CPV) employs optical elements to concentrate sunlight onto small solar cells, offering the ...
The compound parabolic concentrators for solar …
The primary sources of energy losses in CPCs include imperfections in the reflecting surfaces, non-uniform solar flux distribution on the receiver surface, solar cell series resistance, increased solar cell temperature due to solar radiation concentration, and relatively low concentration ratios achievable by CPCs.
Design of a new static solar concentrator with a high …
A stationary (non-tracking) solar PV thermal concentrator system using bifacial solar cells is designed and constructed. Two concentrator designs (with the
Oxygen concentrators | Philips Respironics
Philips offers a wide range of oxygen concentrators for your business, from dose pulse to 10-liter continuous flow.
A Comprehensive Comparison of Portable Oxygen …
Looking for a portable oxygen concentrator? This article compares the top brands and models on the market based on size, portability, oxygen output, battery life, and noise level.
Renewable and Sustainable Energy Reviews
The design proposed by Barnett et al. [92] is compact using solar concentration and spectrum splitting to redirect and focus light bands on a low energy and a medium energy solar cell. The design incorporates a refractive front lens, a hollow pyramidal reflective concentrator, a dichroic lens and a nonimaging solid concentrator.
Design of a solar concentrator system for a green …
The solar concentrator consisting of prisms is a promising solution for clean energy collection. Concentrator design and allocation play a key role for efficient solar energy collection. This study investigates a green community with many houses. A solar concentrator is installed on the roof of each house to receive sunlight.
The influence of fuel bias in the primary air duct on the …
Improvements were made to a low-NO x axial swirl burner (LNASB), aimed at mitigating slagging in a 600-MWe boiler burning bituminous coal. The new design is referred to as improved low-NO x axial swirl burner (ILNASB). This paper describes investigations of the influence of swirl burner structure on the gas/particle flow …
Studies of the effect of a coal concentrator on NO …
To develop low-pollution burners, the effect of a coal concentrator on NO formation in swirling coal combustion is studied using both numerical simulation and experiments. The isothermal gas–particle two-phase velocities and particle concentration in a cold model of swirl burners with and without coal concentrators were measured using …
Luminescence solar concentrators: A technology update
1. Introduction. A Luminescence Solar Concentrators (LSC) [1], [2] is a simple light energy absorber, converter, and concentrating device consisting of a thin slab of a transparent material of ideally high refractive index with embedded a low concentration of luminescent emitters (luminophores or fluorophores). LSCs' emitters absorb a …
The dual functioning swirl combined sewer overflow regulator/concentrator
The low-flow concentrate is diverted by a bottom orifice to the sanitary sewerage system for subsequent treatment at the municipal works. ... Studies have confirmed that the kinetic energy- produced by swirl flow action can be harnessed to accelerate the solids separation process. ... Before using the swirl concentrator as a …
Tandem luminescent solar concentrators based on …
Luminescent solar concentrators (LSCs) can serve as large-area sunlight collectors for terrestrial and space-based photovoltaics. Due to their high emission …
An ultralight concentrator photovoltaic system for space solar power …
In a concentrator system, the solar power incident on the solar cell is multiplied by the concentration factor, as is the heat dissipated within the cell. ... Solar cells in space suffer radiation damage from both high and low-energy particles, necessitating the use of cover glass, typically cerium doped fused silica, to reduce the fluence of ...
Predicting the efficiency of luminescent solar concentrators …
It involves using luminescent solar concentrators to convert traditional windows into energy generators by utilizing light harvesting and conversion materials. …
A 2024 Guide to Portable Oxygen Concentrators
Particle filters and column pairs that help power the concentrator typically can be bought separately from the devices. Masks and cannulas: Portable oxygen concentrators require a way to deliver oxygen to the user. Typically it's via a nasal cannula tube, but sometimes it's a mask.
Planar metasurface-based concentrators for solar energy …
Solar energy is an inexhaustible renewable energy resource, which is a potential solution to global warming and aids sustainable development. The use of solar-thermal collectors to harness solar energy facilitates low-cost heat storage and can improve the stability of power grids based on renewable energy. In solar-thermal …
Swirl Technology: Enhancement of Design, Evaluation, and …
While different forms of swirl and vortex technologies have been developed during the last thirty years, their major function has been the dual purpose of flow regulation and settleable-solids concentration for combined sewer overflows. A variety of ...
The low efficiency of lignite separation by an enhanced …
Separation tests were conducted to investigate the separation performance of fine lignite by enhanced gravity concentrator. Size composition analysis illustrates that ultrafine coal with high ash c...
High-Efficiency Organic Solar Concentrators for …
OSCs aim to exploit high-performance PV cells in low-cost, nontracking solar concentrators. By using near-field energy transfer, solid-state solvation, and …
CN111237796A
A low-energy-consumption high-efficiency pulverized coal concentrator relates to the field of boiler pulverized coal combustion auxiliary devices. The upper end of the first-stage pulverized coal concentrating chamber is an inlet of pulverized coal airflow, a first-stage partition plate is arranged at an outlet at the lower end of the first ...
Achieving High-Efficiency Large-Area Luminescent Solar …
Luminescent solar concentrators (LSCs) are semitransparent windows that are able to generate electricity from sunlight absorption. LSCs have shown huge …
Tandem luminescent solar concentrators based on engineered
Multijunctions have long been used to enhance photovoltaic solar cell efficiency. Here, a large-area tandem luminescent solar concentrator is demonstrated using two types of quantum dot with low ...
Low Band Gap Perovskite Concentrator Solar Cells: Physics, …
Perovskite solar cells (PSCs) own rapidly increasing power conversion efficiencies (PCEs), but their concentrated counterparts (i.e., PCSCs) show a much lower performance. A deeper understanding of PCSCs relies on a thorough study of the intensive energy losses of the device along with increasing the illumination intensity. Taking the low band gap …
Luminescent solar concentrators for building-integrated
Luminescent solar concentrators (LSCs) are the most promising technology for semi-transparent, electrodeless PV glazing systems that can be …