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Design optimization of porting in a rotating sleeve expander
Author(s) -
Decher R.
Publication year - 1989
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.4440130403
Subject(s) - mechanical engineering , porting , materials science , nuclear engineering , engineering , computer science , software , programming language
The flow losses associated with operation of a rotating sleeve expander depend on the rotational speed as well as flow rate and geometry. In this work, the proper width of the ports is determined for a chosen speed so that expansion takes place from a design value of the inlet pressure to atmospheric exhaust pressure. The proper split in length between the inlet and exhaust is also identified. This split is obtained from a minimum in the sum of losses associated with inlet and discharge. This optimum performance is found to be attractively high and is given as a function of speed and pressure ratio.