Solar Collectors Articles

  • Recapping the Debate Over Whether Low-Carbon Economies Are Good for Tech

    To be of any use, tech products need power from electrical outlets, stored chemical energy such as batteries and generators, solar collectors, kinetic energy like my emergency hand-crank radio/charger, or other means. As more global and local regions move away from fossil-fuel-based power to low-carbon renewable power, I wonder how my colleagues in the tech industry would weigh in on a debate ...


    By Antea Group - USA

  • Are Low-Carbon Economies Good or Bad for the Tech Industry?

    Pamela Gordon blogs over at EBN To be of any use, tech products need power from electrical outlets, stored chemical energy such as batteries and generators, solar collectors, kinetic energy like my emergency hand-crank radio/charger, or other means. As more global and local regions move away from fossil-fuel-based power to low-carbon renewable power, I wonder how my colleagues in the tech ...


    By Antea Group - USA

  • Exergy analysis of DSG parabolic trough collectors for the optimal integration with a combined cycle

    A comprehensive energy and exergy analysis was conducted for various components of a direct steam generation (DSG) parabolic trough solar collector field under nominal operating conditions to assess performance of the components and to optimally integrate them with a thermal system. The solar field was modelled mathematically to compute thermal loss and consequently the thermodynamic ...


    By Inderscience Publishers

  • Kuwait: A CSP market worth entering?

    Kuwait's renewable energy plans show that CSP has a paramount role to play in the country's future energy mix, but when will developments pick up pace? Progress in Kuwait's CSP projects has been slower than anticipated. While the net gas importer signed multi-year supply deals for liquefied natural gas with Qatargas and Shell, and is considering similar agreements with Iran and the United ...


    By FCBI Energy

  • Energy and exergy analysis of solar combisystems

    Solar combisystem is a hot–topic since 1998 by the help of broad participation TASK–26 project in Europa and USA. The aim of this study is to determine energetic and exergetic analysis results of implemented solar combisystem in Turkey. Experimental system is built up and internal working parameters, external system parameters are measured between 1 and 31 January 2011. Totally, 544 Wh/day ...


    By Inderscience Publishers

  • Parametric study and exergy analysis of solar water–lithium bromide absorption cooling system

    This paper presents the energy and exergy analysis of single–effect water–lithium bromide absorption cooling system driven by the heat supplied by a field of solar thermal collectors with a cooling capacity of 10 kW. The work is devoted to the study, the evaluation and distribution of the destroyed exergy for each component constituting this kind of system. The thermodynamic models have been ...


    By Inderscience Publishers

  • Comparison of thermal performances of flat plate and evacuated tube solar air collector at different flow rates: experimental analysis

    The thermal performances of an evacuated tube solar air collector and flat plate solar air collector are experimentally investigated at different flow rates of air. The evacuated tube solar air collector has 40 evacuated tubes and surface area, 4.44 m². This setup consists of a header of square shape. The header has a circular pipe at the centre through which the air flows. The setup contains ...


    By Inderscience Publishers

  • Parabolic Trough or Solar Tower? A technology decision

    Securing cost reductions and carving out routes to grid parity remains as ever the most pressing issue for the CSP industry. At the crux of this pursuit is understanding the associated costs of the CSP technologies themselves, whether it be Parabolic Trough, Solar Tower, Linear Fresnel or Dish Sterling. Delving even deeper, the ability to identify and successfully implement cost reduction ...


    By FCBI Energy

  • Thermodynamic and life cycle assessment of flat–plate collector, photovoltaic system and photovoltaic thermal collector

    In this study, an energy, exergy and Life Cycle Assessment (LCA) analysis of a Flat–Plate (FP) collector, a Photovoltaic (PV) system and a Photovoltaic–Thermal (PV–T) collector is carried out for better evaluation. It is observed that instantaneous energy, daily energy and exergy efficiency of the FP collector, the PV system and the PV/T collector vary between 53–61%, 19–30%, 23–37% and 56–74%, ...


    By Inderscience Publishers

  • Thermal management of non–concentrating photovoltaic panels under extreme ambient conditions

    Solar photovoltaic modules have reduced efficiency levels when the ambient temperature is very high. In this paper, the temperature and the efficiency of a non–concentrating flat plate collector is determined by a one dimensional steady state analysis at different solar radiation levels for the city of Riyadh, Saudi Arabia where the radiation intensity and ambient temperatures are very high. The ...


    By Inderscience Publishers

  • Temperature evolution of an experimental salt-gradient solar pond

    A salt-gradient solar pond is a low-cost, large-scale solar collector with integrated storage that can be used as a source of energy in low-grade-heat thermal desalination systems. This work presents the thermal evolution of an experimental solar pond for both the maturation and heat extraction time periods. The temperature profile was measured every 1.1 cm using a vertical high-resolution ...


    By IWA Publishing

  • Opening markets for CSP – the industrial heat application

    Heavy industry can be a viable secondary market today for CSP producers, but questions remain on whether start-up costs are justifiable for industrial users, and how reliable CSP can be for processes that can't pace production by the sun. Solar thermal heat implies steam, and industries that need steam include refining, food processing, wood-working, desalination and chemicals, among others. ...


    By FCBI Energy

  • Removal of humic substances using solar irradiation followed by granular activated carbon adsorption

    This study proposed a new method using freely available sunlight and granular activated carbon (GAC) adsorption for enhanced removal of humic substances (HS). Experiments were carried out under natural sunlight conditions in winter and summer. A parabolic solar collector (PC) was applied to concentrate solar energy. HS were characterized by UV254 absorbance, dissolved organic carbon (DOC) ...


    By IWA Publishing

  • CO2 mitigation with thermal energy storage

    Thermal Energy Storage (TES) provides us with a flexible heating and/or cooling tool to combat global warming through conserving energy while utilising natural renewable energy resources. This paper aims to show how CO2 emissions can be decreased by utilising different TES concepts in Turkey. The first project is for the heating and cooling of a supermarket using Aquifer Thermal Energy Storage ...


    By Inderscience Publishers

  • Exergetic performance evaluation of a single solar air heater with N sub collectors arranged in series or parallel configuration

    The energy and exergy efficiency of the solar air heater (SAH) collector array consisting of a number of sub-collectors (N) arranged either in series or in parallel configuration have been evaluated for various values of collector aspect ratio (AR), mass flow rate per unit collection area (G) of the SAH collector array and N either in series or in parallel configuration for a given total ...


    By Inderscience Publishers

  • A new type of solar concentrator employing a cone-cylinder combination

    Most conventional solar thermal radiation concentrators have some sort of symmetry which allows them to concentrate solar thermal energy for their operation. We report a new system that utilises the symmetry of a cone and a cylinder combination to simulate the concentration of solar radiation on a ring containing a fluid (water). A halogen lamp is used as the source of radiation to simulate solar ...


    By Inderscience Publishers

  • Alternative scenarios of the utilisation of renewable energy sources in small prefectures: a case study in Lasithi Prefecture, Greece

    The sector of Renewable Energy Sources (RESs) is growing very fast, with many innovations and applications becoming a reality. The continuous reduction of natural resources has forced all policymakers to turn to alternative energy sources. The total energy (oil and electricity consumption) consumed in the prefecture of Lasithi during the years 1997?2002 in correlation with the RES exploitation ...


    By Inderscience Publishers

  • Sustainable development of the Prefecture of Kephalonia

    An optimisation methodology is applied on the islands of Kephalonia and Ithaca (Prefecture of Kephalonia) in Greece, where various Renewable Energy Sources (RES) can be found and could be exploited to satisfy part of their energy needs. These resources are examined and a case study is performed for Kephalonia that involves an application of specific mathematical tools that will lead to a set of ...


    By Inderscience Publishers

  • Solarthermal parabolic trough power plants with integrated storage capacity

    Parabolic trough power plants use concentrated direct insulation for steam generation in a Rankine cycle. The fundamentals for direct steam generation in parabolic troughs have been developed in recent years, the feasibility was successfully demonstrated at a solar powered test facility reaching steam temperatures of 400°C at a maximum pressure of 100 bar. Important components for the accelerated ...


    By Inderscience Publishers

  • Performance of a solar dryer using hot air

    A solar dryer for drying herbs and spices using hot air from roof-integrated solar collectors was developed. The dryer is a bin type with a rectangular perforated floor. The bin has a dimension of 1.0 m!2.0 m!0.7 m. Hot air is supplied to the dryer from fiberglass-covered solar collectors, which also function as the roof of a farmhouse. The total area of the solar collectors is 72 m2. To ...


    By Thai Solar Power

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