Thermal performance of a Stirling engine powered by a solar simulator


AKSOY F., KARABULUT H., ÇINAR C., SOLMAZ H., ÖZGÖREN Y. Ö. , UYUMAZ A.

APPLIED THERMAL ENGINEERING, vol.86, pp.161-167, 2015 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 86
  • Publication Date: 2015
  • Doi Number: 10.1016/j.applthermaleng.2015.04.047
  • Journal Name: APPLIED THERMAL ENGINEERING
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.161-167
  • Keywords: Stirling engine, Solar energy, Beta type, Halogen lamp, Solar simulator, THERMODYNAMIC ANALYSIS, ENERGY, PISTON, CONSTRUCTION, COLLECTOR, MODEL
  • Gazi University Affiliated: Yes

Abstract

In this study, the performance of a beta type Stirling engine which works at relatively lower temperatures was investigated using 400 W and 1000 W halogen lamps as a heat source and helium as the working fluid. The working fluid was charged into the engine block and the pressure of the working fluid was ranged from 1 to 5 bars with 1 bar increments. The halogen lamps were placed into a cavity adjacent to the hot end of the displacer cylinder, which is made of aluminum alloy. In the experiments conducted with 400 W halogen lamp, the temperature of the cavity was 623 +/- 10 K. The power, torque and thermal efficiency of the engine were determined to be 37.08 W, 1.68 Nm and 9.27%, at 5 bar charge pressure. For the 1000 W halogen lamp, the temperature of the cavity was determined to be 873 +/- 10 K. The power, torque and thermal efficiency of the engine were determined to be 127.17 W, 3.4 Nm and 12.85%, at the same charge pressure. The experimental thermal efficiencies of the engine were also compared with thermodynamic nodal analysis. (C) 2015 Elsevier Ltd. All rights reserved.