Different
types of feasible and practical operational ECMs such as major
investment measures (VAV systems against CAV, and low COP
chillers against high COP chillers), minor investment measures
(photo electric dimming control system against general lighting,
and double glazed low emittance windows against single-glazed
windows) and zero investment measures (reset heating and cooling
set point temperatures), are evaluated using DesignBuilder (DB), a
graphic user interface based building energy simulation tool