- Author
-
Aaron, D. A.
|
Domanski, P. A.
- Title
- Experimental Investigation and Modeling of the Flow Rate of Refrigerant 22 Through the Short Tube Restrictor.
- Coporate
- National Institute of Standards and Technology, Gaithersburg, MD
- Sponsor
- Department of Energy, Washington, DC
- Report
-
NISTIR 89-4120,
July 1989,
102 p.
- Distribution
- Available from National Technical Information Service
- Keywords
-
refrigerants; models; flow rate; tubes; air conditioners; heat pumps; constrictions; flow measurement; experimental data; pressure; chamfering
- Abstract
- Refrigerant flow through the short tube expansion device was theoretically and experimentally investigated. The analysis was limited to initially subcooled R22 flowing through short tubes with 5 L/D 20. Flow dependency upon upstream subcooling, upstream pressure, downstream pressure, length, diameter, entrance chamfering and exit chamfering was determined. A flow model and flow charts were developed.