Method for the Economic Profitability of Energy Rehabilitation Operations: Application to Residential Dwellings in Seville☆

摘要: Abstract This work proposes a method based on computer model to assess the economic profitability of energy rehabilitation operations in envelope block residential dwellings (Virgen del Carmen) Seville (Southern Spain). The evaluates influence that certain hypotheses interventions opaque part exert annual demand: better insulation facade, interior partitions, roof and ground floors, addition its semi-transparent part: improvements airtightness building openings, glass windows, thermal conductivity frame. These arise from strict compliance with Spanish regulatory framework. has been designed for context Mediterranean climate, (mild winters hot summers). simulation tool Design Builder 3.4.0.041, which uses calculation engine Energy Plus 8.1, selected generate computing establish demand. amortization costs is quantified by net present value (NPV) index, accordance savings bills consumption due reductions demand heating cooling building, thereby obtaining an period exceeds 22 years.