아파트 단위세대의 규모 및 방위별 에너지 사용규모와 패턴에 관한 연구

A Study on the Energy Consumption and their Patterns in Apartment Housing Units Size and Orientation

The goal of this research is to provide basic data for energy efficiency in multi-family residential building designs and to contribute to its improvements. The goal is achieved by analysing the amount of energy use and the energy use patterns for different 'apartment housing units'. The apartment unit samples for the analysis are selected from 'J-apartment complex' constructed by a prominent construction company in South Korea. The samples are sorted according to several criteria such as 'floor plan size and configuration', 'exterior wall lengths', and 'building orientations'. The analysis is aimed to guide economic feasibility for energy saving designs in multi-family residential buildings. The final analysis is aimed to provide the standard for energy efficient multi-family apartment designs. Three inferences are made during this research. First, the energy usage and its cost escalate as the size of an apartment unit increases. Second, when the size of apartment units are same, the energy usage of each unit differs according to its orientation. Energy usage factors according to building orientations are as follow: South units(100%), South-West units(105.71%), South-East units(111.04%), South-West units with location disadvantage(112.38%), South-East units with location disadvantage (113.22%). Third, a set-back from the building mass creates micro-climate conditions and draws shadow on the apartment unit. It is proved by the analysis that such micro-climate conditions give the unit disadvantages for its energy efficiency.