Nodal analysis of a Stirling engine with concentric piston and displacer

Karabulut H., Yucesu H. S., Cinar C.

RENEWABLE ENERGY, cilt.31, sa.13, ss.2188-2197, 2006 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 31 Sayı: 13
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1016/j.renene.2005.12.009
  • Dergi Adı: RENEWABLE ENERGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2188-2197
  • Anahtar Kelimeler: gamma-type Stirling engine, nodal analysis, concentric piston and displacer
  • Gazi Üniversitesi Adresli: Evet

Özet

To reduce the external volume of Stirling engines and to increase the specific power per unit volume, a novel mechanical arrangement is used where the power cylinder is concentrically situated inside the displacer cylinder. The inner heat transfer surface requirement and the thermodynamic performance characteristics are predicted preparing a nodal analysis in FORTRAN, where the inner volume of the engine is divided into 103 cells. Variation of the temperature in cells is calculated using the first law of thermodynamics, given for unsteady open systems, after arranging the enthalpy inflow and outflow terms. Volumes of cells are calculated using kinematic relations devised for the driving mechanism.