Energy performance of an occupancy-based climate control (OBCC) technology in guest rooms

Hyojin Kim, Emily Oldham

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations


This paper presents the results of a detailed energy savings analysis ofthe use ofoccupancy-based climate control (OBCC) technology in guestrooms using a calibrated building energy simulation based on one year ofdetailed energy, indoor environment quality (IEQ), and occupancy measurements of 14 guest rooms in the case-study hotel building in Washington, DC. A calibrated building energy simulation was selected to normalize the key variables affecting the performance of the OBCC technology (i.e., weather, indoor temperatures, and occupancy effects), which were not properly adjusted in previously reported savings. As a result, the simulated energy savings of the OBCC control algorithm installed in the case-study hotel rooms are about 29.4% of the heating and cooling energy use (i.e., $2.27/m2 [$0.21/ft2]) with a 6.5% increase in the hours the loads were not met during occupied hours. The analysis also shows lower savings were calculated for smaller temperature setback/setup ranges.

Original languageEnglish (US)
Title of host publicationASHRAE Transactions - 2019 ASHRAE Winter Conference
Number of pages15
ISBN (Electronic)9781947192256
StatePublished - 2019
Externally publishedYes
Event2019 ASHRAE Winter Conference - Atlanta, United States
Duration: Jan 12 2019Jan 16 2019

Publication series

NameASHRAE Transactions
ISSN (Print)0001-2505


Conference2019 ASHRAE Winter Conference
Country/TerritoryUnited States

All Science Journal Classification (ASJC) codes

  • Building and Construction
  • Mechanical Engineering


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