Validation of Wladimiro Acosta's Helios System

Wladimiro Acosta s architectural practice shows him to have been a pioneer of passive design back in 1930, but his work is little known and has remained unstudied by the environmental research community. His approach to designing with climate is described in his book “Dwelling and the City” published in 1936. It introduces Acosta’s “Helios System”, a design method for architectural solar control that precedes Olgyay’s by some 20 years. The paper presents a critical review of Acosta’s system using current computational tools to assess his solar control devices for two buildings he designed in Buenos Aires. The analysis shows that the principles established by Acosta are still valid for Buenos Aires. His climatic assessment was accurate and informative. The Helios System is well-founded and compares with the tools we have today. On close examination Acosta’s designs are well informed.

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This paper was in collaboration with Simos Yannas, presented at PLEA 2017.