Design strategies for energy conservation buildings

Energy Conservation Buildings are very effective for restraint of global warming, because they can reduce CO2 emissions in building operation, which account for 70% of Life Cycle emissions. To find the most suitable strategies for energy conservation, it is necessary to assess various combinations of energy conservation techniques based on both environmental and economic viewpoints. Since these assessments are laborious and time consuming, an assessment tool has been desired. This paper describes a computer program named “Integrated Assessment System for energy conservation (Eco-navi)” that allows engineers and architects to recombine several energy conservation techniques easily in early phase of architectural and building services planning. Through computer simulation, vector diagrams to find the most suitable combination will be presented.