Continuous-Combustion Gas Generator Engine: Zero-Dimensional Modeling Study

Paper #:
  • 930064

Published:
  • 1993-03-01
Citation:
Chung, C. and Wang, L., "Continuous-Combustion Gas Generator Engine: Zero-Dimensional Modeling Study," SAE Technical Paper 930064, 1993, https://doi.org/10.4271/930064.
Pages:
10
Abstract:
The current concern over engine emission motivates us to reconsider the continuous-combustion option, which was first adopted by Brayton in the 1870's, with disappointing fuel economy in comparison with the Otto four-stroke.The two-part cycle principle of the gas generator engine was proposed by Wang & Jeng (1992). In this paper, a continuous-combustion gas generator engine is investigated using zero-dimensional modeling. The result confirms the validity of the two-part cycle principle producing simultaneous increase in power output and thermal efficiency. However, the various irreversible losses of the continuous-combustion piston unit result in unsatisfactory thermal efficiency. The continuous-combustion gas generator engine is, therefore, not a viable concept in its basic form. The alternative, intermittent-combustion gas generator engine is expected to sustain smaller irreversible losses; its performance prediction remains to be studied.
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