Wave Upwelling Pump Overview Manual

＜Overview of Wave-type Upwelling Pump＞
An artificial upwelling device that uses wind and wave energy to pump low-lying water and disperse it on the sea surface.

Development objective:

1. Reduce damage caused by typhoons, heavy rains, and heavy snowfall by suppressing water vapor generation
2. Increase in marine plankton and revitalization of fishery resources
3. Promoting ocean fertility by promoting circulation of nutrients at lower layers
4. Increasing CO2 capture through sea surface cooling
5. Improving the sustainability of fisheries in the context of reef use

The check valve at the top of the pipe repeatedly opens and closes above and below the buoy to pump up the low-lying water. The
pumped-up low-lying water is dispersed over a wide area by surface currents caused by the wind, lowering the sea surface temperature.

1. Features of the Wave Upwelling Pump

Wide-range wave response: From short-period ripples to long-period swells, it
　can be used over a wide range of conditions = The valve plate is made lighter and the upwelling pipe is cut at an angle to reduce resistance during ascent, improving responsiveness.

High durability: Improvements made after five years of breakage
　= φ6mm shaft heavy hinge, SUS316 (rust-resistant stainless steel), polycarbonate double valve plate used

Biological adhesion: Prevention of adhesion of barnacles and oysters Rope
　= Removal method using a weighted rope inside the pipe

Vertical maintenance function: Prevents tipping over due to tidal currents
　= Upright support by weighted rope inside the pipe

Inexpensive and DIY: Uses PVC pipes and existing marine floating bodies (buoys, etc.)
　= Everything except the check valve can be purchased at a hardware store and can be DIYed

*Made in Japan, patented *Some metal parts are made in a factory in Kashiwa City

　 　 　

　 　 　

2. Upwelling calculation formula and simulation

*Vertical displacement 0.2m, period 2 seconds, upwelling tube radius 0.1m
*Does not include flowing water, water pressure resistance, or sinking loss of the buoy.

3. Summary of structure, advantages and effects, and development status

1. Structure and Principle

1. Basic structure:
    A buoy that floats on the water surface
    A pipe with a check valve suspended below the buoy
    A cleaning and upright support rope inside the pipe
2. Operating principle:
    When the buoy rises: The valve closes and the water in the pipe is pulled up.
    When the buoy descends: The check valve opens and the water inside is dispersed to the leeward side of the surface.

2) Advantages

1. Zero energy:
    No external energy source is required as it uses wave power
    No secondary pollution occurs
2. Multipurpose use:
    Typhoon/heavy rain control by cooling sea surface temperature
    Improvement of oxygen deficiency in low layers
    Reduction of CO2 by increasing marine plankton and fish and shellfish
3. Versatility and standardization:
    Uses PVC pipes (VU100 and VU200 connecting pipes) to ensure the versatility of parts
    Fisheries related parties can manufacture, use and sell them themselves
4. Maintenance considerations:
    Development of a function to prevent excessive adhesion of ecosystems (seaweed, shellfish, etc.)
5. Adaptability:
    Size and depth can be adjusted according to the characteristics of the installation area
    Can be modified to suit the target and area, such as seaweed, clams, and oysters
    Can be used in freshwater areas Example: Lake Suwa, Nagano Prefecture

4. Current development status

1. Verifying the effectiveness of magnetic force in preventing ecosystem attachment
2. The next step is to verify its functionality and effectiveness in various ocean areas
3. Increasing production and use by fishery-related parties themselves Example: Ishinomaki City Sameura Bay scallop farm

5. Domestic and overseas examples of artificial upwelling

Research objectives for “Research into improving the meat content of cultured oysters by generating upwelling currents using natural energy”

1. Development of an upwelling generator that uses natural energy:
   • We will develop a wave-type upwelling pump that uses wave power, aiming to supply nutrients to aquaculture areas.
2. Improving the content of farmed Pacific oysters:
   • Examine the effect of nutrient supply from upwelling currents on the growth and quality of Pacific oysters.
3. Establishing sustainable aquaculture techniques:
   • Building an environmentally friendly aquaculture support system that is not dependent on external energy.
   This research aims to develop sustainable aquaculture techniques that utilize natural energy, and shows the possibility of contributing not only to improving the quality of oysters, but also to improving the marine environment and combating climate change. It is hoped that the practical application of wave-type upwelling pumps will lead to the realization of an efficient aquaculture industry that is considerate of the environment.
   Miyagi Prefectural Fisheries Experimental Station: Kumagai Akira and Oshino Akio
   　　
   “Experiment on marine fertilization by pumping deep seawater”
   Objective of the experiment
4. Improving marine productivity:
   • Increase production of phytoplankton by utilizing nutrients from deep ocean waters.
   • Increase production of zooplankton and fish through the food chain.
5. Establishment of natural circulation-based biological production technology:
   • Development of sustainable methods for increasing marine resources by utilizing the natural mechanisms of the ocean.
6. Verification of the feasibility of using deep seawater:
   • Verification of the feasibility of marine fertilization using the eutrophic properties of deep seawater.
   Although marine fertilization by pumping up deep seawater has potential, it was shown that further technological development and research is required for practical application.
   – Takumi Project – Dr. Ouchi Kazuyuki, Ph.D., Ouchi Marine Consultants Co., Ltd.
   　　
   　
   “Open ocean experiment of upwelling control using wave pump technology”
   Estimated purpose of the experiment
7. Performance verification of a wave-powered upwelling generator in the open ocean:
   • Verify the feasibility of controlling upwelling in an open ocean environment using wave pump technology.
8. Verification of the effect of pumping deep seawater:
   • Measure the amount of lower seawater pumped and the effect of nutrient supply in actual sea areas.
9. Environmental impact assessment:
   • Investigate the impact of upwelling on the ecosystem and water quality of the surrounding marine areas.
   Expected experimental results
10. Performance of the device:
    • It is possible to pump 100-300 m³ of bottom water per day depending on the wave period and size.
11. Nutrient supply effects:
    • Pumping of deep waters can increase nutrient concentrations in the surface waters.
12. Plankton growth:
    • Nutrient supply can stimulate the growth of phytoplankton.
13. Environmental impacts:
    • Localized decreases in water temperature and changes in dissolved oxygen levels may be observed.
14. Technical challenges:
    • Issues regarding the durability and stability of the device in an open ocean environment may become evident.
    Results:
    A demonstration experiment of a wave upwelling pump was conducted off the coast of Hawaii.
    The pumping of cold water and an increase in plankton were confirmed, but the device was damaged within about a week due to insufficient design strength in the open ocean.
    　
    Oregon State University, School of Marine and Atmospheric Sciences, Corvallis, Oregon
    University of Hawaii at Manoa, Honolulu, Hawaii School of Marine and Earth Sciences and Technology

6. Overseas companies and organizations developing technology to control hurricanes by cooling sea surface temperatures

1. Blue Planet Energy Solutions
   is developing a technology to reduce the development of hurricanes by lowering ocean surface temperatures using ocean thermal management technology, which uses giant pumps to pump cold, deep water to the surface.
2. The Atmocean
   Ocean Pumping System harnesses wave energy to pump cold, deep water to the surface, aiming to reduce the development of hurricanes by lowering ocean temperatures, which in turn will stimulate plankton growth and improve the health of marine ecosystems.
3. Evertech Energy and Resources
   is developing a deep water pumping system that aims to reduce ocean surface temperatures and slow the development of hurricanes, especially in hurricane-prone areas.
4. Ocean-Based Climate Solutions, Inc.
   is working on developing technology to pump deep ocean water to lower ocean surface temperatures. This technology aims to suppress the development of hurricanes by cooling the warm ocean waters that are the source of their energy.

These companies and projects are conducting research and development to utilize technology to pump cold ocean water from low levels to suppress the development of hurricanes.
Although there are many challenges to overcome before it can be put into practical use, if the technology is successful, it could become an innovative means of reducing the damage caused by hurricanes.

7. Popularization and sales start as monitors

8. Development Cooperation Organizations

 Shibaura Institute of Technology, Faculty of Engineering, School of Mechanical Engineering, Department of Mechanical Engineering, Tanaka Kotaro Laboratory: Collaborative research
 Onjuku Town Iwawada Fisheries Cooperative Association and Onjuku Town Hall: Support for obtaining licenses and permits for use of experimental waters
 Ministry of Land, Infrastructure, Transport and Tourism, National Institute for Land and Infrastructure Management: Exhibit at the Tokyo Bay Symposium
 Minato Research Foundation: Expert advice
 NPO Escot Member (Sano City Hall): Research funding support

9. Research and Development

NPO Escot Environmental Equipment Development Division Contact: Haruo Fujimoto
4-17 Higashikamicho, Kashiwa City, Chiba Prefecture 277-0011
768-22 Kamifuse, Onjuku Town, Isumi District, Chiba Prefecture
Mobile: +81-80-4365-0861
https://www.npo-escot.org
ser.kashiwa@gmail.com