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Daylight Transport Systems for Buildings at High Latitudes
2019
Journal of Daylighting
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It is limited to the systems that transport light at a long distance from the façade and distribute it either in the building core or at a rear place in a room adjacent to the façade. ...
the type of the transport element. ...
Acknowledgements The study was done as a part of PhD-study at the Norwegian University of Science and Technology with the support of Norconsult AS and the Norwegian Research Council. ...
doi:10.15627/jd.2019.8
fatcat:arw2rwqrsng6nipfzzuqki5emq
A Review Study on the Modeling and Simulation of Solar Tower Power Plants
2020
Journal of Solar Energy Research Updates
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Among the CSP that have been developed so far are the parabolic trough, the parabolic dish, the Fresnel collectors and the solar tower. ...
In summary, this work presents a comprehensive review of the existing numerical and analytical models and could serve as a guideline to develop new models for future trends in solar tower power plants. ...
Because of input power and flux distribution changes caused by diurnal and meteorological conditions, the control system must vary the receiver heat transport fluid flow rate to maintain outlet temperature ...
doi:10.31875/2410-2199.2020.07.9
fatcat:wbjd6njkcrg4ld3zfz2hpe7odm
Evaluation of Energy Efficiency and the Reduction of Atmospheric Emissions by Generating Electricity from a Solar Thermal Power Generation Plant
2020
Energies
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The model of the solar thermal plant is composed of a field of solar collectors, a storage tank, and an energy conversion system. ...
The use of thermosolar technology allows the reduction in the risk of spills by the transport of fossil fuels in ships. ...
The most used solar collectors are shown in [4, 5] such as flat-plate, parabolic compound, evacuated tube (heating of fluids to temperatures up to 200 °C; parabolic trough, Fresnel lens, parabolic dish ...
doi:10.3390/en13030645
fatcat:eki5iu25nndixejcn7q372ffza
Mechatronic Platform with 12m2 Solar Thermal Concentrator for Rural Power Generation in Africa
2014
Energy Procedia
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Electrical power generation through Stirling type engines make use of concentrated solar radiation as the source of hightemperature heat. ...
This paper proposes a design for a 12m 2 parabolic dish frame which includes novel modifications over to the latest lightweight solar concentrators and aims to simplify assembly and installation of the ...
Further acknowledgement is given to Department of Science & Technology of South Africa, the National Research Foundation, the Centre for Renewable and Sustainable Energy at Stellenbosch University and ...
doi:10.1016/j.egypro.2014.03.156
fatcat:aokqfq7gffbzpoo5i7gks2bbgm
Time scaling internal state predictive control of a solar plant
2003
Control Engineering Practice
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The control of a distributed collector solar field is addressed in this work, exploiting the plant's transport characteristic. ...
The model has an external distributed source, which is the solar radiation captured along the collector, approximated to depend only of time. ...
The authors are thankful to the excellent and friendly support provided by all the staff at Plataforma Solar de Almería. ...
doi:10.1016/s0967-0661(03)00112-6
fatcat:fk4fhy5flvetxfaepsqbp3gqvy
Development and Validation of a Dynamic Simulation Model for an Integrated Solar Combined Cycle Power Plant
2021
Energies
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The model describes the plant with a high level of detail including the solar field, the heat recovery steam generator, and the control structures. ...
In this study, a sophisticated dynamic process model of the ISCC power plant in Kuraymat, Egypt, has been developed using APROS software. ...
Conflicts of Interest: The authors declare no conflict of interest. ...
doi:10.3390/en14113304
fatcat:hlhtszvzlbamxgbwkbnbiw6ldm
Reduced complexity adaptive nonlinear control of a distributed collector solar field
2002
Journal of Process Control
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An approach to the control of a distributed collector solar ®eld relying on feedback linearization, Lyapunov based adaptation and a simpli®ed plant model is presented. ...
The resulting control law has the same control structure of the one yielding exact input-output linearization but assumes a dierent placement of a temperature sensor. ...
Once the model is justi®ed, another experiment illustrates the use of a Lyapunov based adaptive controller for tackling uncertainty in collector optical eciency. ...
doi:10.1016/s0959-1524(01)00003-8
fatcat:dr5vopoworgqlfxfhoemxz46ay
Solar thermal collectors and applications
2004
Progress in Energy and Combustion Science
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In this paper a survey of the various types of solar thermal collectors and applications is presented. ...
A historical introduction into the uses of solar energy is attempted followed by a description of the various types of collectors including flat-plate, compound parabolic, evacuated tube, parabolic trough ...
Mechanisms using computer controlled motors with feedback control provided from sensors measuring the solar flux on the receiver [78 -80] . ...
doi:10.1016/j.pecs.2004.02.001
fatcat:b6ybyukqsvhpticd3qdwhtq574
Adaptive control of distributed collector solar fields
2006
International Journal of Systems Science
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Besides their intrinsic interest, distributed collector solar fields are representative of a class of systems with technical interest, involving transport phenomena, to which the methods considered can ...
Distributed collector solar fields are spatially distributed engineering systems which aim at collecting and storing energy from solar radiation. ...
The above combined features motivate the study of advanced control methods for distributed collector solar plants. ...
doi:10.1080/00207720600783686
fatcat:viffpuvllrdvjndkoq37g3spyq
Thin Solid Films and Nanomaterials for Solar Energy Conversion and Energy Saving Applications
2008
Journal of Nano Research
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The efficient use of solar thermal technologies is very important for the introduction of a sizeable share of environmentally friendly renewable energy sources. ...
Important new applications are possible today in the fields of energy conversion and storage by the application of thin and nanostructured solid films on surfaces. ...
mechanical blind systems for light and energy control. ...
doi:10.4028/www.scientific.net/jnanor.2.49
fatcat:gpm6ch76yngstgu4udwsgy2cdy
Concentrating Solar Power Technologies
2019
Energies
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This work compiles the latest literature in order to provide a timely review of the evolution and worldwide implementation of Concentrated Solar Power—CSP—mechanization. ...
constraints for policy-makers in optimizing solar energy alternatives. ...
This boiler by means of a mechanical device, was ran and powered a printing press. [42, 43] Figure 4a presents the first concept of a solar parabolic collector. ...
doi:10.3390/en12061048
fatcat:5psumoonbbbf7lcdvu3buxy6hu
PREDICTIVE ADAPTIVE FEEDFORWARD CONTROL OF A TIME SCALED SOLAR PLANT
2005
IFAC Proceedings Volumes
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This paper concerns the control of a solar energy collector field using predictive feedforward adaptive control techniques based on multiple identifiers. ...
The result of this transformation is a discrete linear model with a Finite Impulse Response (FIR) transfer function. This means that the optimal predictive controller is given by a feedforward block. ...
PLANT DESCRIPTION AND MODEL The ACUREX field of the Plataforma Solar de Almería (PSA) in Southern Spain, consists of 480 distributed solar collectors. ...
doi:10.3182/20050703-6-cz-1902.00244
fatcat:moglwukovrc6rpzut6ippog42y
Variable sampling adaptive control of a distributed collector solar field
2003
IEEE Transactions on Control Systems Technology
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Distributed collector solar fields are spatially distributed engineering systems, which aim at collecting and storing energy from solar radiation. ...
of its distributed character leads to an increased control performance. ...
Fig. 4 . 4 Time propagation of a temperature distribution along the pipe, in the absence of solar heating and losses.
Fig. 5 . 5 Even sampling in space implies uneven sampling in time. ...
doi:10.1109/tcst.2003.816407
fatcat:pqdhypzc5ncilovg2fkhvef73e
Impacts of Renewable Energy Resources on Effectiveness of Grid-Integrated Systems: Succinct Review of Current Challenges and Potential Solution Strategies
2020
Energies
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Finally, expert opinions are provided, comprising a number of aphorisms deducible from the review study, which reveal knowledge gaps in the field and potential roadmap for future research. ...
Although several world energy outlooks have suggested that the renewable resources available worldwide are sufficient to satisfy global energy needs in multiples of thousands, the different challenges ...
The control scheme involves a non-linear single-loop feedback scheme, unlike linear multiple-loop feedback usually employed in traditional DC electrical output controllers in converters. ...
doi:10.3390/en13184856
doaj:89c4013cd95942839af27d5e018ca681
fatcat:c4vwokhjlvgbzfcbav4c6b2igy
Industrial and Agricultural Applications of Solar Heat
[chapter]
2012
Comprehensive Renewable Energy
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use of solar heated steam, water or air in Solar fraction The solar fraction is the energy fraction of a manufacturing. total energy load that is met by solar energy conversion. ...
568 Applications Solar dryer Solar dryers are a range of devices that convert Solar Industrial Process Heat Solar industrial process solar energy to heat that is employed for drying. heat involves the ...
Gillian Collins, who produced many of the diagrams and tables in this chapter. ...
doi:10.1016/b978-0-08-087872-0.00317-6
fatcat:ltwfzvlu3fgulnfw6e6hem7zgq
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