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THE HELICAL PUMP: USE AS A MULTIZONE PROCESSING SYSTEM
Author(s) -
ROCKWELL W. C.,
FARKAS D. F.,
LAZAR M. E.
Publication year - 1970
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1970.tb02004.x
Subject(s) - compression (physics) , decompression , hydrostatic equilibrium , volume (thermodynamics) , electromagnetic coil , hydrostatic pressure , mechanics , constant (computer programming) , mechanical engineering , materials science , engineering , composite material , computer science , electrical engineering , thermodynamics , physics , programming language , quantum mechanics
SUMMARY– A hydrostatic processing system consisting of a compression zone, a holding zone, and a decompression zone has been built from a single coil of pipe. Theoretical maximum operating pressure is the product of the number of turns in the compression zone and the diameter of the coil. Problems of air compression and disruptive air expansion, noted in a previous model, have been overcome by an innovative air feedback system. Crosstubes, another innovation, are used to maintain a constant pressure in the holding zone of the coil. Experimental results on a model operating at 9 psig show that hydrostatic pressures in the holding zone under continuous conditions are about 90% of theoretical. Packages moving through the unit were found to have a pressure history similar to conventional hydrostatic processing systems that use single tall vertical legs for compression and decompression.