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The Control System of Wood Pellet Boiler Based on Home Networks  

Lee, Sang-Hoon (경남대학교 전자공학과)
Publication Information
Journal of the Institute of Convergence Signal Processing / v.15, no.1, 2014 , pp. 15-22 More about this Journal
Abstract
This paper presents the implementation of a control system of pellet boiler using wood pellet as carbon neutral material. The system also has the additional features to provide remote controlling and monitoring based on home networking technology through either public switched telephone networks or mobile communication networks. It consists of three kinds of sub-modules; a main controller provides basic and additional features such as a setting of temperature, a supplying of wood pellet, a controlling of ignition and fire-power, and a removing of soot. The second is temperature controller of individual rooms which is connected to the main controller through RS-485 links. And interface modules with PSTN and mobile networks can support remote controlling and monitoring the functions. The test results under the heating area of $172m^2$ show a thermal efficiency of 93.6%, a heating power of 20,640kcal/hr, and a fuel consumption of 5.54kg/hr. These results are superior to those of the conventional pellet boilers. In order to obtain the such high performance, we newly applied a 3-step ignition flow, a flame detection by $C_dS$ sensor, and a fire-power control by fine controlling of shutter to our pellet boiler.
Keywords
Wood pellet; Pellet boilers; Home networks; RS-485; TCP/IP; Renewable energy;
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