African Design Magazine ADM #38 March 2018 | Page 42

BIM SIMULATION
the total energy consumption has
continuously increased. It is considered
that the total energy consumption will
continuously increase in proportion to the
progress of energy efficiency in buildings
through the system as demands and
expectations for comfort and convenience
of buildings increase according to
changes in residents’ life patterns and
awareness.
As shown in Figure 1, apartments account
for the largest proportion of the energy
consumption, 17.2% in 2015. Commercial
buildings and schools account for 15.6%
and 13.6%, respectively. In other words,
the energy consumption in apartment
houses and business facilities showed a
continuously increasing trend accounting
for 32.9%, and there is a need for a system
plan for energy saving of buildings
because they account for one third of the
overall energy consumption [1].
Conversely, a continuous increase in
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AFRICAN DESIGN MAGAZINE ©
energy consumption has raised awareness
of the need to develop low-carbon design
methods in the field of architecture,
and there has been active research on
the development of high-performance
energy architectural technologies using
BIM in the academic world. In particular,
the use of BIM has the advantage of
integrally operating design, construction,
and maintenance of buildings. Therefore,
it is expected that the development of
construction techniques through energy
performance analysis will be highly
effective in energy saving.
However, with regard to existing
design evaluation based on energy
performance, analysis and evaluation
of energy performance are performed
in the intermediate design stage after
design and facility system are determined
[2]. Thus, there are limitations to the
application of the results of energy
performance analysis to design: namely,
energy performance-based design