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  • (2018) Número 34
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  • (2018) Número 34
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Eguzki-energia termikoa metatzeko materialetako emisibitate-esperimentuak

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Date
2018
Author
Echániz Ariceta, Telmo ORCID
González de Arrieta Martinez, Iñigo ORCID
Fuente Dacal, Raquel ORCID
Urcelay Olabarria, Irene ORCID
López, Gabriel Alejandro ORCID
Igartua Aldamiz, Josu Mirena ORCID
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Ekaia 34 : 199-210 (2018)
URI
http://hdl.handle.net/10810/38986
Abstract
Emisibitate infragorria materialen propietate termofisiko bat da. Erradiazio elektromagnetikoa igortzeko materialek daukaten ahalmena adierazten du parametro horrek. Eguzki-energiaren industrian erabiltzen diren materialen emisibitatea neurtzea oso garrantzitsua da materialen eraginkortasuna handitzeko; izan ere, erradiazio bidez gertatzen diren bero-galeren kalkuluak egiteko eta galera horiek saihesteko, ezinbestekoa da emisibitatea. Emisibitatearen zehaztasun handiko neurketak egin dira UPV/EHUko puntako tresna bat erabiliz Mg-%47Zn-%4Al aleazio hirukoitz eutektikoan, zeina eguzki-energia termikoa metatzeko sistemetarako hautagai den.; Infrared emissivity is a thermophysical property of materials which deter-mines their capability to emit thermal radiation. Emissivity measurements are essential for calculating and minimizing thermal losses by radiation in many technological fields, such as solar energy and thermal storage. Accurate emissivity measurements performed with a singular equipment at the UPV/EHU are presented in the case of a eutectic ternary alloy (Mg-47%Zn-4%Al), which is a candidate for solar thermal-en-ergy storage systems.
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  • (2018) Número 34

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