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Theoretical Analysis of Vacuum Flat-plate Solar Collector with a Detailed Model

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F17%3A00313361" target="_blank" >RIV/68407700:21220/17:00313361 - isvavai.cz</a>

  • Alternative codes found

    RIV/68407700:21720/17:00313361

  • Result on the web

    <a href="http://proceedings.ises.org" target="_blank" >http://proceedings.ises.org</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.18086/eurosun.2016.07.06" target="_blank" >10.18086/eurosun.2016.07.06</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Theoretical Analysis of Vacuum Flat-plate Solar Collector with a Detailed Model

  • Original language description

    Flat-plate collectors are generally designed for applications with typical working temperatures between 40 °C and 60 °C, which is mostly the case for domestic hot water systems. The major effect on the performance of flat solar collector has heat loss through glazing. The reduction of front side heat loss and consequently increasing efficiency can be achieved by using vacuum glazing. The paper presents a theoretical analysis of flat-plate solar collectors with a vacuum glazing. Different configurations of the collector have been investigated by a detailed theoretical model based on combined external and internal energy balance of the absorber. Performance characteristics for vacuum flat-plate collector alternatives have been derived. Subsequently, annual energy gains have been evaluated for a selected variant and compared with state-of-art vacuum tube collectors. The results of modeling indicate, that in case of using advanced vacuum glazing with special low-emissivity coating (emissivity 0.20, solar transmittance 0.85), it is possible to achieve efficiency parameters similar to or even better than vacuum tube collectors.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    20704 - Energy and fuels

Result continuities

  • Project

    <a href="/en/project/ED2.1.00%2F03.0091" target="_blank" >ED2.1.00/03.0091: University center for energy Efficient buildings (UCEEB)</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2017

  • Confidentiality

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

Data specific for result type

  • Article name in the collection

    Proceedings of the ISES EuroSun 2016 Conference

  • ISBN

    978-3-9814659-6-9

  • ISSN

  • e-ISSN

  • Number of pages

    11

  • Pages from-to

    1109-1119

  • Publisher name

    International Solar Energy Society

  • Place of publication

    Freiburg

  • Event location

    Palma de Mallorca

  • Event date

    Oct 11, 2016

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article

    000426895100112