| Summary: | This thesis document was issued under the authority of another institution, not NPS. At the time it was written, a copy was added to the NPS Library collection for reasons not now known. It has been included in the digital archive for its historical value to NPS. Not believed to be a CIVINS (Civilian Institutions) title. === In typical refrigerating systems, an expansion valve is the device to meter the flow of refrigerant. The capillary tube possesses certain advantages over the expansion valve, resulting in a considerable saving in manufacturing cost. The capillary is not rated in conventional terms, however, and as a consequence a cut-and-try process of design has been used. The object of this thesis is a study of the flow process in the capillary tube, to permit a more straightforward approach to the design problem.
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