IMPROVED MARINE BOILER RELIABILITY. PHASE II. VOLUME IV. STACK GAS ANALYSIS

This report presents the results of shipboard testing of a modern marine boiler for stack gas constituents related to corrosion and air quality. Special instrumentation and gas sampling equipment was used to obtain stack gas concentrations of oxygen, carbon monoxide, sulfur dioxide, sulfur trioxide, water vapor, and nitrogen oxides. Tests were performed at six boiler load ratings ranging from 11% to 110% over a wide range of excess air levels. Results obtained serve to characterize the conversion of SO2 to SO3 for the test boiler and permit the calculation of sulfuric acid dew point, demonstrating the dependence of dew point temperature on excess air level and boiler load. Nitrogen oxides were recorded over the complete test range (including an in-port condition) to establish a relationship between stack emissions, boiler load, and excess air for the boiler under test.

• Supplemental Notes:
  • See also Phase 2 Volume 5, PB-266 844 and Final rept. on Phase 1 dated Apr 76, PB-252 675.
• Corporate Authors:

  Combustion Engineering, Incorporated

  Marine Division
  Windsor, CT  United States 

  Maritime Administration

  Office of Advanced Ship Construction, 1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Publication Date: 1977-2

Media Info

• Pagination: 48 p.

Subject/Index Terms

• TRT Terms: Air pollution; Boilers; Carbon monoxide; Combustion; Concentration (Chemistry); Corrosion; Dew point; Marine diesel engines; Monitoring; Nitric oxide; Nitrogen oxides; Oil burners; Oxygen; Reliability; Sampling; Stack gases; Sulfur dioxide; Sulfuric acid; Tables (Data); Water
• Uncontrolled Terms: Monitors
• Old TRIS Terms: Combustion control; Marine propulsion; Stack gas emissions; Sulfur trioxide; Superheaters
• Subject Areas: Environment; Marine Transportation;

Filing Info

• Accession Number: 00159254
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: MA-RD-920-77019 Final Rpt.
• Contract Numbers: MA-6-38088
• Files: TRIS, USDOT
• Created Date: Aug 31 1977 12:00AM