On the energy required to maintain an ocean mirror using the reflectance of foam
Autor: | Eduardo Garciadiego Ortega, Julian R. G. Evans |
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Rok vydání: | 2018 |
Předmět: |
010504 meteorology & atmospheric sciences
Sea foam 010505 oceanography business.industry Mechanical Engineering Ocean Engineering Albedo Atmospheric sciences 01 natural sciences Reflectivity Effects of global warming Environmental science Radiation protection business Energy (signal processing) 0105 earth and related environmental sciences |
Zdroj: | Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment. 233:388-397 |
ISSN: | 2041-3084 1475-0902 |
Popis: | Among the various interventions proposed to remediate the health and security effects of climate change by solar radiation protection is the proposal to enhance natural ocean whitecap formation. Compared to other solar protection interventions, this is technically simple and quickly terminated. However, it has a drawback: even if the energy be obtained from wind or wave, the power demand to maintain a foam raft determines the capitalization of equipment. The average power demand is inversely related to foam lifetime which can be prolonged by surfactants preferably derived from ingenerate resources. Here, we estimate the associated energy and power demands by identifying the parameters that can be adjusted to moderate the capital cost of implementation. Before dividing by efficiency factors, the range of power demand for an intermediate areal energy requirement of 5 MJ/km2 of ocean varies from 6 to 30 W/km2 for foam lifetime of 10–2 days. The most likely route to deployment is through merchant ship lubrication using bubbly liquids which both reduces fuel consumption and creates an extended wake and is perhaps an example of technical symbiosis. |
Databáze: | OpenAIRE |
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