Matches in DBpedia 2014 for { ?s ?p The Barra system is a passive solar building technology developed by Horazio Barra in Italy. It uses a collector wall to capture solar radiation in the form of heat. It also uses the thermosiphon effect to distribute the warmed air through channels incorporated into the reinforced concrete floors, warming the floors and hence the building. Alternatively, in hot weather, cool nighttime air can be drawn through the floors to chill them in a form of air conditioning. Barra's are said to have more uniform north-south temperature distributions than other passive solar houses[citation needed]. Many successful systems were built in Europe, but Barra seems fairly unknown elsewhere.. }
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- Barra_system abstract "The Barra system is a passive solar building technology developed by Horazio Barra in Italy. It uses a collector wall to capture solar radiation in the form of heat. It also uses the thermosiphon effect to distribute the warmed air through channels incorporated into the reinforced concrete floors, warming the floors and hence the building. Alternatively, in hot weather, cool nighttime air can be drawn through the floors to chill them in a form of air conditioning. Barra's are said to have more uniform north-south temperature distributions than other passive solar houses[citation needed]. Many successful systems were built in Europe, but Barra seems fairly unknown elsewhere.".