Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/38084
Title: Thermal inertia : towards an energy conservation room management system
Authors: Pan, D
Yuan, Y
Wang, D 
Xu, X
Peng, Y
Peng, X
Wan, PJ
Keywords: Air conditioning
Building management systems
Computerised instrumentation
Energy conservation
Environmental factors
Scheduling
Thermodynamics
Wireless sensor networks
Issue Date: 2012
Source: 2012 Proceedings IEEE INFOCOM, 25-30 March 2012, Orlando, FL, p. 2606-2610 How to cite?
Abstract: We are in an age where people are paying increasing attention to energy conservation around the world. The heating and air-conditioning systems of buildings introduce one of the largest chunk of energy expenses. In this paper, we make a key observation that after a meeting or a class ends in a room, the indoor temperature will not immediately increase to the outdoor temperature. We call this phenomenon Thermal Inertia. Thus, if we arrange subsequent meetings in the same room; than a room that has not been used for some time, we can take advantage of such un-dissipated cool or heated air and conserve energy. We develop a green room management system with three main components. First, it has a wireless sensor network to collect indoor, outdoor temperature and electricity expenses of the air-conditioning devices. Second, we build an energy-temperature correlation model for the energy expenses and the corresponding room temperature. Third, we develop room scheduling algorithms. Our system is validated with real deployment of a sensor network for data collection and thermodynamics model calibration. We conduct a comprehensive evaluation with synthetic room and meeting configurations. We observe a 30% energy saving as compared with the current schedules.
URI: http://hdl.handle.net/10397/38084
ISBN: 978-1-4673-0773-4
DOI: 10.1109/INFCOM.2012.6195662
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