Solar Thermal Articles
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Case study - Managing complex energy systems
Introduction: Campus on a Renewable Mission The Chewonki Foundation owns and runs a school campus in Wiscasset, Maine that supports a high school program, a boys and girls summer camp, and an organic farm. Chewonki is an alternative school with a focus on environmental education and natural history. ch-classroom.jpgAs such, one of the Foundation’s goals is to teach its students about ...
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Renewable energy progress report
What is the Renewable energy progress report and what is its purpose? The Renewable Energy Directive states that a progress report should be issued every two years. The purpose of this progress report is to assess Member States' progress in the promotion and use of renewable energy in line with the 2020 targets. In addition, it contains sections on thesustainability scheme for biofuels and ...
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Ground Source Heat Pump installed in eco house
This case study looks at a ground source heat pump being installed in London. A Ground Source Heat Pump was chosen as a sustainable and energy efficient way to provide 100% space heating and hot water for this 550m2 new build eco-house in East London. A Heat Recovery Mechanical Ventilation System was also utilised, which, together with Solar Thermal hot water and LED lighting give this stunning ...
By Ground Sun
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Will natural gas dim solar’s shine?
As natural gas booms, renewable energy proponents ponder whether it will serve as a bridge or roadblock to photovoltaic power On the outskirts of downtown St. Paul, Minn., Xcel Energy’s High Bridge Generating Station offers an iconic view of the current state of electrical generation in the United States. Opened in 2008 as a replacement for an aging coal plant, the 534-megawatt natural gas ...
By Ensia
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Performance comparisons of grid connected SPV system with different MPPT algorithms
This paper presents a performance analysis of grid connected SPV system for different maximum power point tracking (MPPT) algorithms. The detailed mathematical model of grid connected three–phase solar photovoltaic (SPV) system with parametric model of SPV cell, thermal modelling and switching loss calculation of switching devices are discussed. The performance evaluation has been carried out for ...
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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 ...
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Exergy analysis of a multi–tank thermal storage system for solar heating applications
This paper presents the results of an experimental study on the stored exergy of a stratified multi–tank system when subjected to various charge and discharge strategies. Tests were performed over 8–h and 48–h test periods, for constant temperature charging, variable input power charging, constant volume hourly draws and variable volume hourly draws. For each set of test parameters, three ...
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Luyi New Energy Office Building Solar Central Air Conditioning System and Factory Roof Photovoltaic Power System - Case Study
Luyi New Energy Office Building Solar Central Air Conditioning System and Factory Roof Photovoltaic Power Generation System - Classic Model Lucy New Energy Offce Building Solar Central Air Conditioning System and Factory Roof Photovoltaic Power Generation System - Classic Sample The construction area of Luyi New Energy 1# and 2# office buildings is 4000 m2 . Through two solar central ...
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South African concentrated solar power executives call for more competition amongst EPCs
In an exclusive CSP Today study of over 100 executives in the concentrated solar power industry in South Africa it has emerged that more competition between EPC contractors was viewed as the number one factor in reducing costs in CSP development. The results emerged as part of the CSP Today ‘CSP in South Africa: Industry Development Survey’, where over 100 executives were surveyed ...
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Can the Solar Hourglass serve as a CSP landmark?
A CSP project proposal has won first place in the 2014 Land Art Generator Initiative (LAGI) competition, but can the design make it beyond paper? By Heba Hashem October was an eventful month for Santiago Muros Cortés. The Argentina-based architect impressed the jury in Copenhagen with his plan for a Solar Hourglass that would use a solar beam instead of sand as a trickling material. The ...
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Italy: the next CSP hotspot?
Italy could potentially have a booming CSP market, thanks to high DNI levels in the southern parts of the country and in the main islands of Sardinia and Sicily – where one of the newest CSP plants, the 50 MW Mazara, is being built. Feed-in-tariffs (FiTs) for CSP generation and industrial needs for process heat should make the market even more attractive. So why aren't developers flocking ...
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A Cleaner Energy Future
As renewable energy plays an increasingly important role in the world’s energy portfolio, the standards of ASTM International Committee E44 are helping to pave the way for innovation in clean energy sources. A growing population and improving living standards around the world are causing significant increases in energy demand and competition for fossil fuels. These escalating energy ...
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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 ...
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The challenge of local content examined: a Spanish solution in South Africa
Spanish engineering, procurement and construction companies’ long track record in the concentrated solar power (CSP) sector provides them with a distinctive advantage to develop large-scale projects around the world. In addition, it gives them a competitive edge when addressing challenges that are particular to these developments. Our most recent article: “The challenge of local ...
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Solar Thermal System: Benefits Vs Problems?
Solar thermal systems are the latest green renewable technology that derives energy from the sun to produce heat. This heat is then transferred to warm water for utilization or regulates temperatures within households, offices and even industries. Varying qualities of equipment results in variation of performance in terms of efficiency and quantity of energy being wasted depending upon quality. ...
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Saving Renewable Energy for a Rainy Day
Despite advances in renewable energy technologies, one of the largest hurdles in their widespread adoption has been their intermittent reliability. Energy is only useful if it is available as the grid demands it, which is why concerns about carbon emissions are overridden in favor of the more dependable oil, coal and gas for baseload power. In order for renewable sources such as wind and solar ...
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Solar exergy maps for photovoltaic/thermal systems
In this paper, the thermal and electrical exergies and the exergy destructions are calculated for a photovoltaic thermal (PV/T) system based on solar exergy rates for some Indian climates namely Bangalore, Jodhpur, Mumbai, New Delhi and Srinagar for a year and for different US climates namely Chicago, Las Vegas, Miami, New York, Portland, San Antonio, San Francisco, Tucson and Tulsa for January, ...
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Implications And Challenges Of US Solar Power
The US government and the private sector businesses are converting to solar and other forms of renewable energy to meet their sky-high and ever-increasing energy demand. Rapid reduction of construction cost, maintenance cost, remote off-grid solutions, tax payback, no harmful impacts on nature—are some reasons why this conversion is fast paced. Questions now ignite as to how profitable it ...
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Development and performance evaluation of 0.16 m 2 solar point thermal energy collector compared with flat plate collector
Renewable energy systems such as wind, solar and biomass are significantly more land intensive than traditional fossil fuels. Renewable energy increases diversity of energy supplies and can replace diminishing fossil fuel resources over the long run; their use in place of fossil fuels can substantially reduce greenhouse gases and other pollutants. Application of solar energy for domestic and ...
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Solar power generation by photovoltaic technology
The various forms of solar energy, solar heat, solar photovoltaic, solar thermal electricity, and solar fuels offer a clean, climate-friendly, very abundant and in-exhaustive energy resource to mankind. Solar power is the conversion of sunlight into electricity, either directly using photovoltaic (PV), or indirectly using concentrated solar power (CSP). The research has been under way since the ...
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