Upon completion of the home in August of 2011, two residents moved into the home as part of a 2-year post-occupancy study period. Qualitative and quantitative data is being collected and live-in residents support continuing education through blogs and tours. Separate electronic and digital systems monitor residents’ occupancy patterns and the performance of various building systems– a complex effort completed with crucial support from the Oak Ridge National Laboratory Buildings Research and Technologies Integration Center (BTRIC) and faculty partners in the UT Biosystems Engineering and Soil Science Department.
Installed Monitoring Systems
The first system, a Powerhouse Dynamics 24-channel Residential eMonitor, tracks electrical consumption. The eMonitor is an affordable, user-friendly suite of off-the-shelf hardware and software that logs channelized electrical loads at a maximum 1-minute resolution.
The second installed system is a Campbell Scientific CR23X Datalogger programmed to collect weather data, interior air temperatures and relative humidities, energy recovery ventilation temperatures and relative humidities, water flow volumes and temperatures, cistern water level, glycol flow rates, as well as a redundant value of total electrical consumption.
The third installed system is a Campbell Scientific CR10, used to collect data associated with the greywater system including soil saturation.
Water quality data related to rainwater treatment efforts is carefully collected at 1-month and quarterly intervals for testing at internal labs (monthly), as well as state certified water quality labs (quarterly). City water is sampled from the bathroom lavatory; Ports installed in the cistern room provide samples of treated rainwater – before it enters the house – and untreated rain water stored in the cistern.
The team also uses Onset HOBOS devices to monitor various conditions as they arise (glycol temperatures, daylighting values, comparison home temperature studies, etc). All data is logged at 15-minute intervals and remotely downloaded hourly.
Findings and Dissemination
While these efforts are ongoing, we have begun the process of analyzing and disseminating our findings. Should you or your organization have any interest in acquiring our raw datasets, please feel free to contact us and we would be happy to share!