An optical performance comparison of three concentrating solar power collector designs in linear Fresnel, parabolic trough, and central receiver

Kincaid, Nicholas; Mungas, Greg; Kramer, Nick; Wagner, Michael J.; Zhu, Guangdong

doi:10.1016/j.apenergy.2018.09.153

Cited by 91 publications

(40 citation statements)

References 24 publications

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“…These data were within the range obtained by other authors. Thus, Kincaid et al [39] found that the yearly optical efficiency, according to their models, was 40%. Mohamed H. Ahmed et al [40] simulated the optical performance of a linear Fresnel obtaining 67% with their optical model and 38.8% accounting the sun-to-electric annual average efficiency.…”

Section: Monthly Average Concentrated Energymentioning

confidence: 99%

Analysis of Potential Use of Linear Fresnel Collector for Direct Steam Generation in Industries of the Southwest of Europe

et al. 2019

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Industry sector has an important impact on primary energy consumption at the international level, and solar energy constitutes a real alternative to cover these energy needs partially. Among thermosolar concentration technologies, Linear Fresnel Collector (LFC) technology has some advantages that make it more accessible to industries. With the aim of providing new tools for easier decision-making processes, in the present work, several energy audits were carried out in industries (located in the south-west of Europe, with considerable steam consumptions), quantifying thermal and energy consumptions and defining both work schedules and seasonality. Afterwards, a comparison based on three factors was carried out: Thermal consumption regarding total industry consumption, the performance of the work during the solar schedule, and the quantification of the monthly average concentrated energy for a certain LFC facility. The analysis carried out according to these criteria showed different results for each case, making a global assessment necessary to suitably ponder each factor. This analysis ranked tomato industries as the most suitable for LFC technology, due to the fact that their main operating period was during the months with the highest solar isolation, and the solar schedule was completely integrated in a 24-h working day. Also, industrial waxes and laundries showed a good combination of both facts.Energies 2019, 12, 4049 2 of 15 26% of primary energy consumption [16]. Furthermore, heat generation processes in industry constitute 54% of the total energy consumption in Europe in contrast with 17% of the total energy consumption corresponding to electric uses. This proportion of energy use justifies the implementation of solar thermal-based systems [17].Solar thermal systems harness solar energy for heating, either as hot water for domestic use-domestic hot water and heating-as a heating source for fluids in industrial processes or as steam to produce mechanical energy in a turbine to obtain electrical energy. Solar thermal systems may have concentrators to direct solar isolation that strikes the capturing surface area towards a smaller area (absorber area). This configuration obtains higher temperatures in the heat transfer fluid. These devices achieve solar concentration using specular reflection; thus, only direct isolation is used.There are two different technologies that concentrate direct solar isolation: Point focus type, that concentrates isolation into a single point-solar power tower or Dish-Stirling system-and linear focus type, which concentrates isolation into a linear receptor. Linear focus type reaches higher temperatures, because it concentrates isolation into a larger area. There are two types of linear focus collectors: Parabolic trough collector (PTC) and linear Fresnel collectors [18,19].Several studies have shown LFC (Linear Fresnel Collector) optical quality and thermal efficiency is slightly lower than in the case of PTC, due to the high influence of the angle of incidence and the cosine fa...

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Section: Monthly Average Concentrated Energymentioning

confidence: 99%

Analysis of Potential Use of Linear Fresnel Collector for Direct Steam Generation in Industries of the Southwest of Europe

et al. 2019

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“…(Left) Conceptual schematic of concentrating solar power tower using heliostats [61]. (Right) An operating heliostat field concentrating solar light to the receiver on a tower 47 .…”

Section: Figure 25: Working Principle Of Heliostatsmentioning

confidence: 99%

“…Sides and base can be shielded effectively by submersion in lunar regolith. 61 Materials: Per Megawatt-level reactor. Configuration: Per Megawatt-level reactor.…”

Section: Controls: Rotating Reflector Drumsmentioning

confidence: 99%

Commercial lunar propellant architecture: A collaborative study of lunar propellant production

Kornuta

Abbud-Madrid

Atkinson

et al. 2019

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“…SolTrace uses a Monte Carlo algorithm and traces a large number of sun rays through interactions with each collector component including the primary reflector, secondary reflector, and receiver tube. The important collector optical properties are summarized in Table …”

Section: Approachmentioning

confidence: 99%

“…The important collector optical properties are summarized in Table 2. 39 Figure 5 plots absorbed solar flux distributions on the surfaces of the secondary reflector, receiver glass envelope, and absorber tube at design-point operating conditions. The corresponding collector optical properties can be found elsewhere.…”

Section: Solar Flux On the Componentsmentioning

confidence: 99%

Investigation of temperature distribution on a new linear Fresnel receiver assembly under high solar flux

et al. 2019

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Summary A linear Fresnel collector design with an operation temperature of 300°C or above typically requires a solar flux concentration ratio of at least 20 on the surfaces of the receiver assembly. For the commercial linear Fresnel collector design in this work, the receiver assembly includes a secondary reflector and an evacuated receiver tube. The high‐concentration solar flux may impose additional operating‐temperature requirements on the secondary reflector and receiver tube. Thus, a careful heat‐transfer analysis is necessary to understand the operating temperature of the receiver assembly component surfaces under design and off‐design conditions to guide appropriate material selections. In this work, a numerical heat‐transfer analysis is performed to calculate the temperature distribution of the surfaces of the secondary reflector and receiver glass envelope for a commercial collector design. Operating conditions examined in the heat‐transfer analysis include various wind speeds and solar concentration ratios. The results indicate a surface temperature higher than 100°C on the secondary reflector surface, which suggests that a more advanced secondary reflector material is needed. The established heat‐transfer model can be used for optimization of the other types of linear Fresnel collectors.

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An optical performance comparison of three concentrating solar power collector designs in linear Fresnel, parabolic trough, and central receiver

Cited by 91 publications

References 24 publications

Analysis of Potential Use of Linear Fresnel Collector for Direct Steam Generation in Industries of the Southwest of Europe

Analysis of Potential Use of Linear Fresnel Collector for Direct Steam Generation in Industries of the Southwest of Europe

Commercial lunar propellant architecture: A collaborative study of lunar propellant production

Investigation of temperature distribution on a new linear Fresnel receiver assembly under high solar flux

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