Analytical solution to the one-dimensional non-uniform absorption of solar radiation in uncoated and coated single glass panes

Hermanns Navarro, Miguel; Ama, Fernando del y Hernández Ramos, Juan Antonio (2012). Analytical solution to the one-dimensional non-uniform absorption of solar radiation in uncoated and coated single glass panes. "Energy and buildings", v. 47 ; pp. 561-571. ISSN 0378-7788. https://doi.org/10.1016/j.enbuild.2011.12.034.

Descripción

Título: Analytical solution to the one-dimensional non-uniform absorption of solar radiation in uncoated and coated single glass panes
Autor/es:
  • Hermanns Navarro, Miguel
  • Ama, Fernando del
  • Hernández Ramos, Juan Antonio
Tipo de Documento: Artículo
Título de Revista/Publicación: Energy and buildings
Fecha: 2012
Volumen: 47
Materias:
Palabras Clave Informales: Single glass pane; Non-uniform absorption; Solar radiation; Analytical solution; Thermal performance
Escuela: E.T.S.I. Aeronáuticos (UPM) [antigua denominación]
Departamento: Motopropulsión y Termofluidodinámica [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

The analytical solution to the one-dimensional absorption–conduction heat transfer problem inside a single glass pane is presented, which correctly takes into account all the relevant physical phenomena: the appearance of multiple reflections, the spectral distribution of solar radiation, the spectral dependence of optical properties, the presence of possible coatings, the non-uniform nature of radiation absorption, and the diffusion of heat by conduction across the glass pane. Additionally to the well established and known direct absorptance αe, the derived solution introduces a new spectral quantity called direct absorptance moment βe, that indicates where in the glass pane is the absorption of radiation actually taking place. The theoretical and numerical comparison of the derived solution with existing approximate thermal models for the absorption–conduction problem reveals that the latter ones work best for low-absorbing uncoated single glass panes, something not necessarily fulfilled by modern glazings.

Más información

ID de Registro: 15740
Identificador DC: http://oa.upm.es/15740/
Identificador OAI: oai:oa.upm.es:15740
Identificador DOI: 10.1016/j.enbuild.2011.12.034
URL Oficial: http://www.sciencedirect.com/science/article/pii/S0378778811006505
Depositado por: Memoria Investigacion
Depositado el: 07 Nov 2014 18:10
Ultima Modificación: 07 Nov 2014 18:10
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