Ocean Food and Energy Farm Project. Subtask 4. Preliminary Design Studies of Substrate and Upwelling Systems. Volume 2. Artificial Upwelling in Support of the OFEF Project. Progress Report

摘要

Engineering studies on the upwelling of deep, nutrient-rich ocean water to the surface for kelp nutrifaction are reported. A conceptual design analysis was performed on methods of upwelling deep ocean water and powering the upwelling system. Both computer analysis and a dye experiment were used to examine the dispersion of upwelled water. Results of analysis of the following candidate systems are given: Issacs buoy/propeller pump; wave turbine/propeller pump; windmill/propeller pump; wave vane/propeller pump; modified Issacs pump; and bellows pump. It is concluded that the wave turbine/propeller pump and bellows pump (pipe upwelling system) offer the greatest simplicity of design and are expected to induce the lowest forces into the substrate structure. (ERA citation 03:017180)