Unclassified 



SECURITY CLASSIFICATION OF THIS PAGE (When Data Entered) 



REPORT DOCUMENTATION PAGE 



I. REPORT NUMBER 



TN-1560 



2. GOVT ACCESSION NO 



DN587076 



4. TITLE (and Subline) 



PERFORMANCE OF UNCOATED AND COATED 

 NONFERROUS HEAT EXCHANGERS IN A TEM- 

 PERATE MARINE ENVIRONMENT FOR TWO YEARS 



7. author^; 



T. Roe, Jr., J. F. Jenkins, and R. L. Alumbaugh, Ph D 



9. PERFORMING ORGANIZATION NAME AND ADDRESS 



CIVIL ENGINEERING LABORATORY 



Naval Construction Battalion Center 

 Port Hueneme, California 93043 



II. CONTROLLING OFFICE NAME AND ADDRESS 



Naval Facilities Engineering Command 

 Alexandria, Virginia 22332 



U. MONITORING AGENCY NAME » AODRESSfif dillerenl Irom Controlling Ollice) 



3. RECIPIENT'S CATALOG 



5. TYPE OF REPORT & PERIOD COVERED 



Final; Jul 1975 -Aug 1978 



6. PERFORMING ORG. REPORT NUMBER 



CONTRACT OR GRANT NUMBERfsJ 



10. PROGRAM ELEMENT. PROJECT. TASK 

 AREA a WORK UNIT NUMBERS 



62760N; 



YF53. 534.006. 01. 040 



12. REPORT DATE 



August 1979 



,6TNUM 



BER OF PAGES 



15. SECURITY CLASS, (ol thi: 



Unclassified 



16. DISTRIBUTION STATEMENT (ol this Report) 



Approved for public release; distribution unlimited. 



17. DISTRIBUTION STATEMENT (ol Ihe abs 



in Block 20, il dltlerent Irom Report) 



18. SUPPLEMENTARY NOTES 



19. KEY WORDS (Continue 



and identity by bio 



Protective coatings, heat transfer, thermal properties, deterioration, heat exchangers, 

 cost-effectiveness. 



20. ABSTRACT (Continue on reverse side II necessary and identity by block number; 



Twelve finned tube heat exchangers — four pieces of three different materials or material 

 combinations — were operated in a marine environment (1) uncoated, (2) coated with an elec- 

 trostatically applied polyester enamel, (3) coated with a specification alkyd system, or (4) coated 

 with a zinc inorganic silicate material. Temperature drops across each exchanger were monitored 

 for 24 months and heat transfer capacities were calculated for selected periods. Copper tube/ 



(continued) 



DD ,JAN M 73 1473 EDITION OF I NOV 65 IS OBSOLETE 



Unclassified 



CLASSIFICATION OF THIS PAGE (When Data Entered) 



MBL/WHOI 



D 0301 00M03bfl T 



