NAWMS: nonintrusive autonomous water monitoring system
Proceedings of the 6th ACM conference on Embedded network sensor systems
HydroSense: infrastructure-mediated single-point sensing of whole-home water activity
Proceedings of the 11th international conference on Ubiquitous computing
WaterSense: water flow disaggregation using motion sensors
Proceedings of the Third ACM Workshop on Embedded Sensing Systems for Energy-Efficiency in Buildings
Circulo: Saving Energy with Just-In-Time Hot Water Recirculation
Proceedings of the 5th ACM Workshop on Embedded Systems For Energy-Efficient Buildings
The Energy-Water Nexus in Campuses
Proceedings of the 5th ACM Workshop on Embedded Systems For Energy-Efficient Buildings
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After space heating and cooling, water heating is typically the largest energy consumer in the U.S. homes, accounting for approximately 17% of total energy consumption. Current water heating systems waste up to 20% of their energy due to poor insulation in pipes or water tanks, but improving this insulation is too costly to be practical for energy savings. In this paper, we build on recent fixture and water flow monitoring systems to create the Hot Water DJ, which provides hot water to any fixture based on the requirement of the fixture. In our experiment, we deployed sensors in a real home to learn about the accurate temperature model for each of the fixtures in the house. Whenever any of the fixture asks for hot water, Hot Water DJ would provide hot water as hot as the appliance typically require. Our result shows, with our approach we can save 10% of water heater energy with limited impact on user comfort and cost.