A Hierarchy of Architectural Design Elements for Energy Saving of Tower Buildings in Korea Using Green BIM Simulation

Table 5

Changes in energy expenditure per unit area due to ratio of long side to short side and window area ratio (%).

Scale	30 × 10	20 × 10	30 × 20	20 × 20	20 × 30	10 × 20	10 × 30	Average
Ratio of long side to short side	3 : 1	2 : 1	1.5 : 1	1 : 1	1 : 1.5	1 : 2	1 : 3
10∼20%	28.0	29.4	20.6	23.3	20.6	29.4	28.0	25.6
20∼30%	21.0	21.6	16.8	18.5	16.8	21.6	21.0	19.6
30∼40%	16.5	16.8	14.0	15.1	14.0	16.8	16.5	15.7
40∼50%	13.4	13.6	11.9	12.6	11.9	13.6	13.4	12.9
50∼60%	11.2	11.3	10.3	10.7	10.3	11.3	11.2	10.9
60∼70%	9.6	9.6	9.0	9.3	9.0	9.6	9.6	9.4
70∼80%	8.3	8.3	8.0	8.1	8.0	8.3	8.3	8.2
80∼90%	7.3	7.2	7.1	7.2	7.1	7.2	7.3	7.2
10∼90%	189.2	195.5	149.9	165.5	149.8	195.4	189.0	176.3