The author gratefully acknowledges the financial support of Dairy Research, Inc. (Rosemont, IL) and the equipment support of Cherry-Burrell (Cedar Rapids, IA). A special appreciation is extended to Mr. R.R. Earley (NCSU dairy plant manager) for his continued support and patience, and to Mr. R.B. Biziak for his valuable contribution to the system operation of this study.
Tubular Heat Exchanger Fouling by Milk During Ultra High Temperature Processing
Article first published online: 25 AUG 2006
Journal of Food Science
Volume 48, Issue 5, pages 1507–1511, September 1983
How to Cite
SWARTZEL, K.R. (1983), Tubular Heat Exchanger Fouling by Milk During Ultra High Temperature Processing. Journal of Food Science, 48: 1507–1511. doi: 10.1111/j.1365-2621.1983.tb03526.x
- Issue published online: 25 AUG 2006
- Article first published online: 25 AUG 2006
- Ms received 2/28/83; revised 5/2/83; accepted 5/6/83
The effect of milk fouling deposits on the heat transfer rate of a tubular heat exchanger was investigated for varying process heat treatments. Product input and discharge temperatures were maintained constant while steam temperature increased as deposits formed. Processing conditions included product entrance temperatures of 347.6 and 366.4°K for heater exit temperature of 410.7°K and product velocity of 1.58 m/s; 363.9 and 366.7 for 410.7 and 2.70; 364.6 for 410.7 and 3.25; 370.6 and 357.8 for 427.4 and 1.58; 378.5 for 427.4 and 2.70; and 379.5 and 376.3 for 427.4 and 3.25. Predictive expressions representing product deposition were determined for process variables, heating curve variables, and equivalent times and temperatures representing the thermal treatment. Product constituent losses during the fouling process and aspects of fouling kinetics were examined.