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The Persistence of Savings Obtained from Commissioning of Existing Buildings
Abstract
The objective of this study is to investigate the reasons why the performance of
mechanical systems degrades over time after commissioning and to recommend intervals
at which testing should be performed to maintain the integrity of the commissioning
process. The initial phase of this study investigated the energy savings in ten buildings
commissioned between 1996 and 1997. The results of this study show that hot water,
chilled water and electric savings have all degraded. Aggregate annual cost savings for
the ten buildings decreased by 17% from 1998 to 2000 from $1,192,884 to $985,626.
The investigation has found that the decreased savings are due to numerous changes in
control settings since the commissioning and to significant control malfunctions in two
buildings.
Subject
CommissioningCollections
Citation
Cho, Sool Yeon (2008). The Persistence of Savings Obtained from Commissioning of Existing Buildings. Available electronically from https : / /hdl .handle .net /1969 .1 /55022.