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Textile membranes in the built environment.

Number: pap. 474

Author(s) : MONTEIRO L. M., ALUCCI M. P.

Summary

This paper presents a research carried out in order to verify which textile membrane would give better environmental performance, in terms of thermal comfort, as an envelope of an exposition building in the city of Sao Paulo, the greatest Brazilian metropolitan area with over eighteen million inhabitants. The method used was based on simulations using new software that allows the choice of membranes and its design to provide thermal comfort. Computational modelling is composed of: balance thermophysiologic (Blazejczyk, 2002) radiation model (Kuwabara, 2002), calculation the temperature of the sky background following Bliss (Duffie & Beckman, 1980), calculation of surface temperatures of the soil, vegetation and membrane (respectively Croiset, 1972; Garg, 1992; EDSL 2004). The Heat Load Index (Blazejczyk, 2002), calibrated to the conditions of São Paulo, by Monteiro (2008), was adopted to evaluate the thermal comfort. The membranes database was developed through: field research and transmittance using solar piranometer Kipp & Zonen CM6B (ASTM E1084-86, 2002), field surveys of solar absorption using thermocouples type J and globe thermometers (Domingues, 1994), and laboratory investigations using a spectrophotometer Cary 500 UV-Vis-NIR (ASTM E903-96, 2002). Different configurations with single and double membranes, of different types, were tested. The assessments are done hourly for a typical day of each month of the year, for thermal performance. The process of simulation assessed the comfort in the environment and aided choosing and designing the membrane solution for the envelope of the building.

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Pages: 10 p.

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Details

  • Original title: Textile membranes in the built environment.
  • Record ID : 30009225
  • Languages: English
  • Subject: Environment
  • Source: Clima 2013. 11th REHVA World Congress and 8th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings.
  • Publication date: 2013/06/16

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