A group of engineers and environmental scientists from Mälardalen College, in Sweden, Southwest Jiaotong College, in China and Guizhou College, additionally in China, has developed a balloon system for producing and delivering electrical energy to the bottom under. Their work is printed within the journal Power.
Some locations aren’t very conducive to the manufacturing of solar energy, particularly within the northern latitudes the place snow can periodically cowl photo voltaic cells. On this new examine, the analysis group has developed a decentralized method to produce solar energy nearly anyplace. They name it a balloon-integrated photovoltaic system (BIPVS). A balloon is shipped aloft with a photo voltaic collector, and it sends the electrical energy produced all the way down to the bottom by way of {an electrical} twine.
The balloon is a hybrid—it stays aloft with a mixture of air and helium. Its prime half is product of clear materials that captures daylight and concentrates it utilizing its refractive properties. The underside half of the balloon is product of a cloth that additional concentrates the sunshine and in so doing reduces the set up space of the photo voltaic cell that hangs under, with out sacrificing harvesting effectivity.
Situating the photovoltaic cells on the underside of the balloon protects them from rain, snow, sleet, or hail. The system additionally has an exhaust valve for gasoline alternate to take care of the specified strain contained in the balloon. Subsequent to the photo voltaic cells are storage and management modules to handle energy circulation. 4 cables are used to stabilize the balloon, and a rope and {an electrical} twine are connected to the bottom. The balloon is supposed to be positioned simply excessive sufficient to keep away from shade from bushes or buildings.
The group has examined their system regionally, and have used simulations to check the doubtless efficiency traits of the BIPVS in 5 main cities throughout the globe. They discovered the common month-to-month manufacturing of one among their balloons to be between 3.5 and 4 GWh of energy. In addition they word that, if desired, a number of balloons could possibly be despatched aloft to generate as a lot energy as is required for a given web site.
Extra data:
Tingsheng Zhang et al, A conveyable balloon built-in photovoltaic system deployed at low altitude, Power (2024). DOI: 10.1016/j.vitality.2024.133722
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