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Energy Evaluation of an Ultra‐High Temperature Shell‐and‐Tube Processing System
Author(s) -
BIZIAK R. B.,
SWARTZEL K. R.,
JONES V. A.
Publication year - 1982
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.1365-2621.1982.tb12903.x
Subject(s) - sterilization (economics) , high energy , volumetric flow rate , materials science , tube (container) , environmental science , mechanics , engineering , composite material , physics , engineering physics , monetary economics , economics , foreign exchange market , foreign exchange
Energy loads for a shell‐and‐tube ultra‐high temperature (UHT) processing system were examined during start‐up, equipment sterilization and product processing. Product flow rates were 606, 1022, and 1325 L/hr. Process temperatures were 138, 143, and 149°C. The regeneration section contributed from 57.5–70.4% useable heat. Energy use remained relatively constant for varying start‐up conditions and increased as a function of flow rate during equipment sterilization. Energy inputs for product processing varied from 358–437 kJ/kg. Minimum energy loads occurred between flow rates of 1000 and 1250 L/hr. Longer processing times decreased the effect of equipment start‐up and sterilization on overall process energy requirements.