|
|
Siew Eang Lee, Ph.D., National University of Singapore
|
|
|
Chirag Deb, National University of Singapore
|
|
|
Junjing Yang, Ph.D., National University of Singapore
|
Energy efficiency in buildings is one of the key measures to tackle global energy and emission concerns. The large share of air conditioning in commercial buildings makes air conditioning systems as primary targets for retrofitting. This paper studies 50 commercial buildings in Singapore that have undergone chiller plant retrofitting. The energy audit reports from these buildings are studied in detail to gather data related to building energy consumption and chiller plant efficiency (measured in kW/RT). The energy utilization index (EUI) which is measured as the total energy per square meter is analyzed for these buildings before and after retrofitting.
