Development of Micro Cogeneration System with a Porous Catalyst Microcombustor

14th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications

物理学;能源学

Takahashi, S.^1 ; Tanaka, M.^1 ; Ieda, N.^1 ; Ihara, T.^1

Department of Mechanical Engineering, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu-shi, Gifu

501-1193, Japan^1

关键词: Combustion efficiencies;    Micro cogeneration;    Micro combustor;    Optimal points;    Porous catalysts;    Thermal efficiency;    Thermal inputs;    Thermo-electric modules;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/557/1/012118/pdf
DOI  :  10.1088/1742-6596/557/1/012118

来源: IOP

【 摘 要 】

The self-standing micro cogeneration system by coupling a microcombustor, thermoelectric modules and an air supply device was developed. The microcombustor has a porous monolithic Pt catalyst layer and the combustion efficiency of 90% was attained. A micro-blower was used to supply air to the combustor, and it was driven by a part of the electricity from the Bi-Te TE modules through a DC-DC converter. We investigated the optimal point where the output became maximal and the system stood by itself. At the optimal point, the input fuel enthalpy was 13.2W and the electricity of 403mW was generated from the TE modules. The micro blower used 280mW and the net electricity was 123mW. Therefore the final thermal efficiency was 0.93%. The efficiency was the same magnitude of the world smallest model plane engine TeeDee01 (COX Co. Ltd.) although the thermal input was less than its 1/20.