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Proposal of a new d...
Proposal of a new design of central solar receiver for pressurised gases and supercritical fluids
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- Montes, M. J. (author)
- E.T.S. Ingenieros Industriales - UNED, C/Juan del Rosal 12, 28040 Madrid, Spain, C/Juan Del Rosal 12; High Temperature Processes Unit, IMDEA Energy, Avda. Ramon de la Sagra 3, 28935, Mostoles, Spain
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- Guédez, Rafael (author)
- KTH,Kraft- och värmeteknologi
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- D'Souza, D. (author)
- E.T.S. Ingenieros Industriales - UNED, C/Juan del Rosal 12, 28040 Madrid, Spain, C/Juan Del Rosal 12; High Temperature Processes Unit, IMDEA Energy, Avda. Ramon de la Sagra 3, 28935, Mostoles, Spain
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- Linares, J. I. (author)
- Comillas Pontifical University, Alberto Aguilera, 25, 28015 Madrid, Spain
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- González-Aguilar, J. (author)
- High Temperature Processes Unit, IMDEA Energy, Avda. Ramon de la Sagra 3, 28935, Mostoles, Spain
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- Romero, M. (author)
- High Temperature Processes Unit, IMDEA Energy, Avda. Ramon de la Sagra 3, 28935, Mostoles, Spain
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ET.S. Ingenieros Industriales - UNED, C/Juan del Rosal 12, 28040 Madrid, Spain, C/Juan Del Rosal 12; High Temperature Processes Unit, IMDEA Energy, Avda. Ramon de la Sagra 3, 28935, Mostoles, Spain Kraft- och värmeteknologi (creator_code:org_t)
- Elsevier BV, 2023
- 2023
- English.
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In: International journal of thermal sciences. - : Elsevier BV. - 1290-0729 .- 1778-4166. ; 194
- Related links:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- This work presents a novel design of microchannel central receiver for pressurised gases and supercritical fluids in solar tower plants. It consists of a radial arrangement of vertical absorber panels that converge on the central axis of the tower. The absorber panels comprise compact structures, whose compactness is increased in one flow pass compared to the previous one, as the fluid is heated. This concept reduces radiation heat losses due to its light-trapping geometry and increases heat transfer to the thermal fluid without over penalising its pressure drop. For the receiver assessment, it has been developed a thermal resistance model characterising the fluid heating along the panel height and the temperature gradient between parallel channel rows of the compact structure across the panel thickness. Once the thermal and optical boundary conditions are defined, an optimisation analysis of the main geometrical parameters of the receiver has been accomplished. The receiver performance is evaluated by means of a global exergy efficiency referred to the solar subsystem, which computes the receiver heat losses, the fluid pressure drop and the optical efficiency of the heliostat field in which the receiver is integrated. For each parametric optimisation, the configuration that maximises this efficiency is identified.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
Keyword
- Increasing compactness
- Light-trapping geometry
- Pressurised gases
- Radial configuration
- Solar central receiver
- Supercritical fluid
Publication and Content Type
- ref (subject category)
- art (subject category)
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