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Development and experimental investigation of a 500-W class ultra-micro gas turbine power generator

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  • Seo, JeongMin
  • Lim, Hyung-Soo
  • Park, JunYoung
  • Park, Moo Ryong
  • Choi, Bum Seog

Abstract

We experimentally investigate the feasibility of a 500-W class ultra-micro gas turbine power generator. System specifications include a design rotational speed of 400,000 rpm, a compressor ratio of 3:1, and a turbine inlet temperature of 1200 K. In a previous study, we used an integrated test rig to examine the feasibility of start-up and self-sustaining capabilities. Here, we describe our development and testing of a new integrated test rig to measure the performance of electric-power generation during self-sustaining and boosting operations. We controlled a motor-generator using an electric controller in fixed speed mode and guided the rotational speed according to the start-up sequence. We employed a radial-thrust integral metal-mesh bumper air foil bearing with which we obtained the design rotational speed of 400,000 rpm in a standalone motoring test. In the combustor, we used liquefied petroleum gas as the main fuel and kerosene as the ignition fuel and partially as the main fuel during the boost operation. The integrated test rig achieved electric power generation of 30 W at 200,000 rpm, 50% of the design rotational speed.

Suggested Citation

  • Seo, JeongMin & Lim, Hyung-Soo & Park, JunYoung & Park, Moo Ryong & Choi, Bum Seog, 2017. "Development and experimental investigation of a 500-W class ultra-micro gas turbine power generator," Energy, Elsevier, vol. 124(C), pages 9-18.
    • Handle: RePEc:eee:energy:v:124:y:2017:i:c:p:9-18
    DOI: 10.1016/j.energy.2017.02.012
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    Citations

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    Cited by:

    1. Marcin Wołowicz & Piotr Kolasiński & Krzysztof Badyda, 2021. "Modern Small and Microcogeneration Systems—A Review," Energies, MDPI, vol. 14(3), pages 1-47, February.
    2. Guan, Jin & Lv, Xiaojing & Spataru, Catalina & Weng, Yiwu, 2021. "Experimental and numerical study on self-sustaining performance of a 30-kW micro gas turbine generator system during startup process," Energy, Elsevier, vol. 236(C).
    3. Sebastián, Andrés & Abbas, Rubén & Valdés, Manuel, 2021. "Analytical prediction of Reynolds-number effects on miniaturized centrifugal compressors under off-design conditions," Energy, Elsevier, vol. 227(C).

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