THEORETICAL OPTIMIZATION OF STAGED EJECTOR SYSTEMS. PART I.
Abstract
At present, the optimum design of staged ejector systems is generally based on assumptions such as constant pressure or constant mass flow ratio per stage. In part I of this study, the behavior of staged ejectors with isoenergetic mixing of similar gases is analyzed. This report presents an analytical method for optimizing a staged ejector system that eliminates the need for such assumptions. The optimization requires the development of a mathematical model to represent the optimum performance characteristics of a single ejector stage. The resulting optimum staged ejector configuration requires the least amount of primary mass flow for a given performance. A sample problem is presented using a five-stage ejector system. In this particular example, the constant mass flow assumption required 11 percent more mass flow than the optimum solution, and the constant pressure ratio assumption required 26% more mass flow. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1966
- Accession Number
- AD0479213
Entities
People
- J. L. Loth
Organizations
- Arnold Engineering Development Complex