Analytical solutions to evaluate solar radiation overheating in simplified glazed rooms

Moreno Santamaria, Belén and Hernandez Ramos, Juan A. (2018). Analytical solutions to evaluate solar radiation overheating in simplified glazed rooms. "Building and Environment", v. 140 ; pp. 162-172. ISSN 0360-1323. https://doi.org/10.1016/j.buildenv.2018.05.037.

Description

Title: Analytical solutions to evaluate solar radiation overheating in simplified glazed rooms
Author/s:
  • Moreno Santamaria, Belén
  • Hernandez Ramos, Juan A.
Item Type: Article
Título de Revista/Publicación: Building and Environment
Date: August 2018
ISSN: 0360-1323
Volume: 140
Subjects:
Freetext Keywords: Interior solar energy distribution; Overheating; Equivalent absorption; Indoor temperature
Faculty: E.T.S. de Ingeniería Aeronáutica y del Espacio (UPM)
Department: Matemática Aplicada a la Ingeniería Aeroespacial
Creative Commons Licenses: Recognition - Share

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Abstract

Calculation methods for the energy demand of buildings require the evaluation of the solar energy which is transmitted indoors through the transparent elements of the building envelope. This energy contributes to raise indoor temperature. Some of the outdoor solar beam and diffuse radiation impinging on the exterior surface of the glazings is transmitted indoors and is diffusely reflected on interior surface. After multiple diffuse reflections between walls and glazings, a proportion of this incoming radiation is absorbed by the opaque walls and the interior surface of the glazings raising the indoor temperature. The objective of this study is to present analytical solutions for a very simple room with a glazing subjected to solar radiation with a normal angle of incidence. Namely, this study yields analytical expressions for: (i) the effective absorptance, (ii) the back absorptance of the glazing subjected to indoor diffuse irradiance and (iii) the indoor temperature. The effective absorptance of the room is compared with that obtained in Ref. [1] and advanced numerical simulations are carried out by means of IDA ICE [2] to validate the analytical expression for the indoor temperature.

Funding Projects

TypeCodeAcronymLeaderTitle
Horizon 2020680441InDeWaGJuan A. Hernandez (UPM partner)Industrial Development of Water Flow Glazing Systems

More information

Item ID: 55056
DC Identifier: http://oa.upm.es/55056/
OAI Identifier: oai:oa.upm.es:55056
DOI: 10.1016/j.buildenv.2018.05.037
Official URL: https://www.sciencedirect.com/science/article/pii/S0360132318303032
Deposited by: Belen Moreno
Deposited on: 05 Jun 2019 11:54
Last Modified: 01 Aug 2019 22:30
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