대한설비공학회:학술대회논문집 (Proceedings of the SAREK Conference)

대한설비공학회 (The Society of Air-Conditioning and Refrigerating Engineers of Korea)
권호 표지

스크롤 방식 스털링 엔진용 스크롤 압축기-팽창기 개념 설계

Conceptual design of scroll expander-compressor for Stirling engine

  • Kim, Woo-Young (Department of Mechanical Engineering, Graduate school of Incheon University) ;
  • Kim, Hyun-Jin (Department of Mechanical Engineering, University of Incheon) ;
  • Kim, Young-Min (Engine R & D, Korea Institute of Machinery & Materials) ;
  • Lee, Sang-Tae (Tempia Co. Ltd.)
  • 발행 : 2007.11.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

In this paper, conceptual design of scroll expander-compressor for Stirling engine utilizing solar energy as heat source has been carried out. Orbiting scroll member was designed to have a double-sided structure to reduce the overall scroll size and to cancel out the axial forces on the orbiting scroll base plate. Diameter of designed scroll base plate was about 251 mm for the expander, and it was about 218 mm for the compressor. With operating condition such as temperature range of $400^{\circ}C/20^{\circ}C$, pressure range of 6 MPa/2 MPa, and shaft speed of 2700 rpm, the shaft output of the designed scroll expander was calculated to be 49.8 kW, while input power for the scroll compressor was 38.6 kW, yielding 11.2 kW for the output power of the Stirling engine. Overall efficiencies of the scroll expander and compressor were 93.73% and 92.87%, respectively.

키워드