Very interesting question. The possibility of dead space and pluging is determined by stress state in this region which depends on tube geometry, Poisson's ratio, viscosity, friction and other mechanical properties of working medium (liquid or solid). Even very great pressure drop can not overcome the resistance of plug (self-locking effect). For example, self-locking effect for non-compressible material (Poisson's ratio near 0,5) exibits the pluging in tube.
Dear Researchers
Practically my question is on possibility of chocking of refrigerant flow in a vapour compression refrigeration cycle through a very long capillary tube even after the use of a large compression ratio compressor. in such a case if plugging / chocking may occur or not.
Yes, if capillary tube has clog caused by wax precipitation, corrosion etc. , the flow of refrigerating medium (commonly, R134a) come to a stop even pressure is more than 15 MPa.
Dear Serge V. Shil'ko
Think there is no extra clogging material like wax precipitation on its flow path, only plugging is anticipated from momentum gain energy conversion principle.
- Badges
- Science topic
- Similar topics
- Thermodynamics
- Pressure