Wireless Sensing, Monitoring and Optimization for Campus-Wide Steam Distribution

doi:10.2172/1029225

GSTDTAP > 地球科学

DOI	10.2172/1029225
报告编号	ORNL/TM-2011/441
来源ID	OSTI ID: 1029225
	Wireless Sensing, Monitoring and Optimization for Campus-Wide Steam Distribution
	[null]
	2011-11-01
出版年	2011
语种	英语
国家	美国
领域	地球科学
英文摘要	The US Congress has passed legislation dictating that all government agencies establish a plan and process for improving energy efficiencies at their sites. In response to this legislation, Oak Ridge National Laboratory (ORNL) has recently conducted a pilot study to explore the deployment of a wireless sensor system for a real-time measurement-based energy efficiency optimization. With particular focus on the 12-mile long steam distribution network in our campus, we propose an integrated system-level approach to optimize energy delivery within the steam distribution system. Our approach leverages an integrated wireless sensor and real-time monitoring capability. We make real time state assessment on the steam trap health and steam flow estimate of the distribution system by mounting acoustic sensors on the steam pipes/traps/valves and observing measurements of these sensors with state estimators for system health. Our assessments are based on a spectral-based energy signature scheme that interprets acoustic vibration sensor data to estimate steam flow rates and assess steam traps status. Experimental results show that the energy signature scheme has the potential to identify different steam trap states and it has sufficient sensitivity to estimate flow rate. Moreover, results indicate a nearly quadratic relationship over the test region between the overall energy signature factor and flow rate in the pipe. We are able to present the steam flow and steam trap status, sensor readings, and the assessed alerts as an interactive overlay within a web-based Google Earth geographic platform that enables decision makers to take remedial action. The goal is to achieve significant energy-saving in steam lines by monitoring and acting on leaking steam pipes/traps/valves. We believe our demonstration serves as an instantiation of a platform that extends implementation to include newer modalities to manage water flow, sewage and energy consumption.
英文关键词	Energy efficiency steam distribution system wireless sensor networks state estimation steam trap diagnostics flow rate estimation spectrogram
URL	查看原文
来源平台	US Department of Energy (DOE)
引用统计
文献类型	科技报告
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/5512
专题	地球科学
推荐引用方式 GB/T 7714	[null]. Wireless Sensing, Monitoring and Optimization for Campus-Wide Steam Distribution,2011.