The purpose of this study is to demonstrate the energy harvesting of power line magnetic noise. To the best of the authors' knowledge, no research has yet been carried out to confirm this possibility. In this paper, we present a simple circuit design model, and confirm its validity by experimental results. For small self-sufficient devices in a wireless sensor network, the target energy level is 1 mW. We prepare an energy harvesting module with an air-core coil and resonant capacitor. From experimental and simulated results, we investigate the desired conditions for harvesting 1 mW from a uniform magnetic field of 60 Hz. Through experimental results with iron cores, the benefits and drawbacks of the use of a magnetic core are also discussed. With our best harvested module, we successfully demonstrated the energy harvesting of 6.32 mW from a magnetic field of 21.2 μT at 60 Hz. If the usable magnetic flux density increases 10-fold, the harvesting energy increased 100-fold. If the magnetic flux density is at an acceptable level in a public space of 200 μT at 60 Hz, the harvesting power density becomes 130 μW/cm 3 . This value is comparable to the value of an energy harvesting module of a light source during a cloudy day.
paper title: "Environment, energy and economic analysis of wind power generation system installation with input-output table," No. 566). Nomenclature X Vector of domestic production I Unit matrix A Matrix of input coefficients F d Vector of domestic final demand E Vector of exports M' diagonal matrix with diagonal elements being import coefficients bij An element of the Leontief inverse matrix ej Backward linkage of sector j ri Forward linkage of sector i R Vector of added value P Matrix of added value coefficients Renergy Vector of energy consumption Penergy Matrix of energy consumption coefficients RCO2 Vector of CO2 emissions PCO2 Matrix of CO2 emissions coefficients A hybrid Matrix of input coefficients in hybrid model A* Matrix of commodity-by-commodity I-O technology coefficients C u Matrix representing upstream cutoff flows to the process data C d Matrix representing downstream cutoff flows to the I-O table from process data
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