Solar radiation concentration features in Linear Fresnel Reflector arrays

Abbas, Rubén; Montes, María José; Piera, M.; Martínez-Val, José M.

doi:10.1016/j.enconman.2011.10.010

Cited by 133 publications

(65 citation statements)

References 23 publications

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“…The maximum temperature achieved by this technology is 92.4°C. Figure 3 shows the graph that shows the maximum achieved temperature by the technology according to [1].…”

Section: Technologies Based On Fresnel Reflectors and Fresnel Lens Frmentioning

confidence: 99%

“…According to Abbas [1], this technology consists of basically reflectors and not lenses. This is another unique technology that is used for solar thermal applications that provides high temperature water as output.…”

Section: Fresnel Reflector Array Technologymentioning

confidence: 99%

“…Parabolic trough collectors are another technology of advanced solar thermal heating systems. This technology uses significant amount of collector area [1]. Fresnel lens and Fresnel reflector technology reduces this size to only the aperture area and focal length of the lens.…”

Section: Introductionmentioning

confidence: 99%

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Solar Geyser Using Spot Fresnel Lens

Rajkrishna¹

2016

J Fundam Renewable Energy Appl

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Fresnel lens based concentrating devices are not only gaining scope in the Photovoltaic industry, but also in solar thermal based industries. Fresnel lens is an optic device which concentrates the incoming light onto a spot or onto a line. This means that the temperature at that point will be significantly high. Utilizing this temperature for solar thermal applications will definitely be helpful for solar thermal power plants as the water can directly be converted into steam. This paper discusses about the various applications of Fresnel lens and how advantageous it can be to be utilized in solar thermal applications. Also better improvement on the collector design is projected that shows improvement in the overall performance of the system.

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“…The maximum temperature achieved by this technology is 92.4°C. Figure 3 shows the graph that shows the maximum achieved temperature by the technology according to [1].…”

Section: Technologies Based On Fresnel Reflectors and Fresnel Lens Frmentioning

confidence: 99%

Section: Fresnel Reflector Array Technologymentioning

confidence: 99%

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Solar Geyser Using Spot Fresnel Lens

Rajkrishna¹

2016

J Fundam Renewable Energy Appl

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“…The most popular optical reflecting surfaces for CSP applications are parabolic troughs [3], dish concentrators [4], linear Fresnel reflectors [5,6], and solar central receivers [7]. Each of these configurations requires a specific type of solar receiver.…”

Section: Concentrated Solar Power Technologymentioning

confidence: 99%

Exergy and Thermoeconomic Analyses of Central Receiver Concentrated Solar Plants Using Air as Heat Transfer Fluid

2016

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Abstract:The latest developments in solar technologies demonstrated that the solar central receiver configuration is the most promising application among concentrated solar power (CSP) plants. In CSPs solar-heated air can be used as the working fluid in a Brayton thermal cycle and as the heat transfer fluid for a Rankine thermal cycle as an alternative to more traditional working fluids thereby reducing maintenance operations and providing the power section with a higher degree of flexibility To supply thermal needs when the solar source is unavailable, an auxiliary burner is requested. This configuration is adopted in the Julich CSP (J-CSP) plant, operating in Germany and characterized by a nominal power of 1.5 MW, the heat transfer fluid (HTF) is air which is heated in the solar tower and used to produce steam for the bottoming Rankine cycle. In this paper, the J-CSP plant with thermal energy storage has been compared with a hybrid CSP plant (H-CSP) using air as the working fluid. Thermodynamic and economic performances of all the simulated plants have been evaluated by applying both exergy analysis and thermoeconomic analysis (TA) to determine the yearly average operation at nominal conditions. The exergy destructions and structure as well as the exergoeconomic costs of products have been derived for all the components of the plants. Based on the obtained results, the thermoeconomic design evaluation and optimization of the plants has been performed, allowing for improvement of the thermodynamic and economic efficiency of the systems as well as decreasing the exergy and exergoeconomic cost of their products.

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“…These features have motivated a number of research efforts to improve the general performance of linear Fresnel solar concentrator systems and construction of solar thermal plants based on the linear Fresnel approach. The first solar thermal power plant based on the linear Fresnel solar concentrator was the 1.4 MW e installed in Puerto Errado, Spain and a second one being built, with a projected power output of 30 MW e (Abbas et al 2012a). Also, in the USA, Ausra built a 5…”

Section: Introductionmentioning

confidence: 99%

Influence of circumferential solar heat flux distribution on the heat transfer coefficients of linear Fresnel collector absorber tubes

2014

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The absorber tubes of solar thermal collectors have enormous influence on the performance of the solar collector systems. In this numerical study, the influence of circumferential uniform and non-uniform solar heat flux distributions on the internal and overall heat transfer coefficients of the absorber tubes of a linear Fresnel solar collector was investigated. A 3D steady-state numerical simulation was implemented based on ANSYS

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Solar radiation concentration features in Linear Fresnel Reflector arrays

Cited by 133 publications

References 23 publications

Solar Geyser Using Spot Fresnel Lens

Solar Geyser Using Spot Fresnel Lens

Exergy and Thermoeconomic Analyses of Central Receiver Concentrated Solar Plants Using Air as Heat Transfer Fluid

Influence of circumferential solar heat flux distribution on the heat transfer coefficients of linear Fresnel collector absorber tubes

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