会议论文详细信息
The Science of Making Torque from Wind 2014
Offshore Floating Wind Turbine-driven Deep Sea Water Pumping for Combined Electrical Power and District Cooling
Sant, T.^1 ; Buhagiar, D.^1 ; Farrugia, R.N.^2
Department of Mechanical Engineering, University of Malta, Msida MSD 2080, Malta^1
Institute for Sustainable Energy, University of Malta, Marsaxlokk MXK 1531, Malta^2
关键词: Central Mediterranean;    Electrical generators;    Electricity-consumption;    Floating wind turbines;    Intermittent flows;    Offshore floating wind turbines;    Performance simulation;    Vapour compressions;   
Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/524/1/012074/pdf
DOI  :  10.1088/1742-6596/524/1/012074
来源: IOP
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【 摘 要 】
A new concept utilising floating wind turbines to exploit the low temperatures of deep sea water for space cooling in buildings is presented. The approach is based on offshore hydraulic wind turbines pumping pressurised deep sea water to a centralised plant consisting of a hydro-electric power system coupled to a large-scale sea water-cooled air conditioning (AC) unit of an urban district cooling network. In order to investigate the potential advantages of this new concept over conventional technologies, a simplified model for performance simulation of a vapour compression AC unit was applied independently to three different systems, with the AC unit operating with (1) a constant flow of sea surface water, (2) a constant flow of sea water consisting of a mixture of surface sea water and deep sea water delivered by a single offshore hydraulic wind turbine and (3) an intermittent flow of deep sea water pumped by a single offshore hydraulic wind turbine. The analysis was based on one year of wind and ambient temperature data for the Central Mediterranean that is known for its deep waters, warm climate and relatively low wind speeds. The study confirmed that while the present concept is less efficient than conventional turbines utilising grid-connected electrical generators, a significant portion of the losses associated with the hydraulic transmission through the pipeline are offset by the extraction of cool deep sea water which reduces the electricity consumption of urban air-conditioning units.
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