TEG-Self-Powered System for Wireless Sensing Node Operating in Aqua-Greenhouse

カテゴリ: 論文誌(論文単位)

グループ名: 【E】センサ・マイクロマシン部門

発行日: 2024/10/01

タイトル(英語): TEG-Self-Powered System for Wireless Sensing Node Operating in Aqua-Greenhouse

著者名: Nguyen Hoang Quan (Engineering Physic, University of Science/Department of Mechanical System Engineering, Graduate School of Engineering, Tohoku University), Nguyen Phan Minh Nguyet (Engineering Physic, University of Science), Nguyen Van An (Engineering P

著者名(英語): Nguyen Hoang Quan (Engineering Physic, University of Science/Department of Mechanical System Engineering, Graduate School of Engineering, Tohoku University), Nguyen Phan Minh Nguyet (Engineering Physic, University of Science), Nguyen Van An (Engineering Physic, University of Science), Mai Thanh Tan Cuong (Engineering Physic, University of Science), Ho Thanh Huy (Engineering Physic, University of Science), Nguyen Chi Nhan (Engineering Physic, University of Science), Truong Thi Kim Tuoi (Department of Mechanical System Engineering, Graduate School of Engineering, Tohoku University), Nguyen Van Toan (Department of Mechanical System Engineering, Graduate School of Engineering, Tohoku University), Takahito Ono (Department of Mechanical System Engineering, Graduate School of Engineering, Tohoku University), Nguyen Van Hieu (Faculty of Physics- Engineering Physic, University of Science/Department of Science and Technology, Vietnam National University, Ho Chi Minh City)

キーワード: IoTs，TEGs，DC-DC boost circuit，wake up-timer IC，BLE node

要約(英語): This research focuses on harnessing excess heat energy in Aquaponic greenhouses-a system combining vegetable and fish cultivation with water circulation, where a perpetual temperature difference exists between the greenhouse air and the water in hydroponic vegetable tubes. Our objective is to convert this temperature difference into electric power for using in wireless IoT sensing systems. Nineteen thermoelectric generators (TEG-12708) were evaluated in a laboratory environment to determine their internal resistance and corresponding load resistance for experimental energy surveys in greenhouses. The maximum output power reached 699.38 μW when the temperature difference across the TEG was 3℃. Furthermore, we successfully demonstrated a sensing system driven by the realistic ambient temperature environment by integrating the TEG with other electronic components, including a DC-DC converter, power management circuit, supercapacitor, and sensors. Under aqua-greenhouse conditions, the harvested temperature difference across the TEG was 3.5℃, corresponding to the TEG's output power of 0.55 mW. The output of the DC-DC converter could reach over 8 V. This work opens up new opportunities for TEGs to harness ambient aqua-greenhouse energy and convert it into usable electricity for wireless IoT sensing systems.

本誌: 電気学会論文誌E（センサ・マイクロマシン部門誌） Vol.144 No.10 （2024） 特集：The 4th International Conference on Engineering Physics, MEMS-Biosensors and Applications (4ICEBA2023)

本誌掲載ページ: 332-337 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejsmas/144/10/144_332/_article/-char/ja/