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Solar Absorber with a Structured Surface – a Way to Increase Efficiency

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F19%3APU131994" target="_blank" >RIV/00216305:26210/19:PU131994 - isvavai.cz</a>

  • Alternative codes found

    RIV/68081731:_____/19:00508585

  • Result on the web

    <a href="http://ojs.cvut.cz/ojs/index.php/ap" target="_blank" >http://ojs.cvut.cz/ojs/index.php/ap</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.14311/AP.2019.59.0134" target="_blank" >10.14311/AP.2019.59.0134</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Solar Absorber with a Structured Surface – a Way to Increase Efficiency

  • Original language description

    The basic idea of solar absorber thermal gain increase is the keyhole effect utilization during which the radiation is absorbed by multiple reflections on cavity walls. The lattice of pyramidal or conical cavities on the solar absorber surface can be formed to create structured surface leading to its overall absorptivity increase and to the reduction of surface absorptivity dependence on the solar radiation incident beam angle changes caused by the daily and annual solar cycles. This contribution concludes the results of simulations of the effect of cavity geometry, geographical position and absorber orientation on its thermal gain with respect to the technological manufacturability of cavities. Furthermore, the real construction of the absorber with structured surface using laser welding and parallel hydroforming is briefly described.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    20301 - Mechanical engineering

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2019

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Acta Polytechnica (on-line)

  • ISSN

    1210-2709

  • e-ISSN

    1805-2363

  • Volume of the periodical

    59

  • Issue of the periodical within the volume

    2

  • Country of publishing house

    CZ - CZECH REPUBLIC

  • Number of pages

    10

  • Pages from-to

    134-143

  • UT code for WoS article

    000473355400004

  • EID of the result in the Scopus database

    2-s2.0-85067311254