USE OF HIGH-PRESSURE WATER MIXING FOR SHIP-BASED OIL SPILL DISPERSING

Autor: R. Belore
Rok vydání: 1987
Předmět:
Zdroj: International Oil Spill Conference Proceedings. 1987:297-302
ISSN: 2169-3358
2169-3366
DOI: 10.7901/2169-3358-1987-1-297
Popis: This paper discusses a project funded by Canada's Environmental Studies Revolving Fund to assess the potential of high-pressure water jets in assisting the chemical dispersion of oil at sea. Full-scale laboratory tests were conducted using 0.5-mm thick, fresh Alberta Sweet Mixed Blend crude oil treated with Corexit 9527 dispersant applied from an overhead spray boom at a dispersant-to-oil ratio of 1: 100. The effects on dispersion efficiency of mixing jet pressure, mixing jet flow rate, jet standoff distance, and vessel speed were evaluated. Based on the test results, specifications for a practical high-pressure water jet system have been suggested. The system would operate with a nozzle pressure of 7,000 kPa, a flow rate of 55 L/min per nozzle, and nozzles positioned about 0.6 m from the water surface. In laboratory tests such a system was capable of dispersing 80 to 100 percent of the surface slick, whereas similar tests with the well-known Warren Spring Laboratory breaker board system resulted in only a 10 percent dispersion.
Databáze: OpenAIRE