Abstract
As an ecological engineering project, artificial upwelling can enhance seaweed growth in the oligotrophic sea area by lifting bottom water, which is rich in nutrients, to the surface and thereby increase coastal carbon sequestration. Generally, engineering projects producing artificial upwelling occur far away from land and are self-powered using offshore solar energy or wind energy. The key to successfully implementing such engineering projects is to produce artificial upwelling with limited energy. With this in mind, an intelligent control system is designed for the energy management of the artificial upwelling engineering project that operates at AoShan Bay in Qingdao, China. This engineering project uses artificial upwelling to assist in the cultivation of macroalgae. The intelligent control system can automatically produce upwelling according to the battery condition and guarantee safety during operation. Meanwhile, users can monitor the system in real time with a Cloud platform. The functioning of the system and the effect of upwelling are confirmed by a sea trial. This research provides guidelines and technical support for the future design of intelligent control systems mounted on artificial upwelling engineering projects.
Highlights
With the increasing emission of carbon dioxide, global warming has become one of the most serious challenges to the sustainable development of human society
This research provides guidelines and technical support for the future design of intelligent control systems mounted on artificial upwelling engineering projects
The designed intelligent control system ensures that artificial upwelling is automatically produced every day, which can lift nutrients to meet the need of kelp growth
Summary
With the increasing emission of carbon dioxide, global warming has become one of the most serious challenges to the sustainable development of human society. CO2 enhanced oil recovery (CO2 -EOR) is a technology for carbon sequestration in the petroleum industry [2,3]. When carbon dioxide is made completely miscible with crude oil through specific techniques, both carbon sequestration and the oil recovery efficiency are enhanced [4,5,6]. Macroalgae culturing is another effective approach for carbon sequestration [7]. As a result of the lack of nutrients, macroalgae may suffer from diseases or even die, threatening productivity but the local ecosystem
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