'Smart' fridges stay cool by talking to each other
(麻豆淫院Org.com) -- 'Smart' fridges that run on renewable electricity and are capable of negotiating the most energy efficient way to keep food cold have been developed by researchers from CSIRO鈥檚 Energy Transformed Flagship.
CSIRO鈥檚 Intelligent Energy team have developed a fridge capable of maintaining its average temperature while regulating its power consumption from renewable-energy generators, such as solar panels (photovoltaics) or wind turbines.
CSIRO Engineer, Sam West, says the smart fridges work as a network of distributed fridges, each fitted with control technology that allows them to communicate with each other via a network to share and store the energy provided by renewable-power generators.
鈥淭he fridges are designed to talk to each other, negotiating when it鈥檚 a good time to consume electricity and when it鈥檚 better not to,鈥� Mr West says. 鈥淭hese scheduling decisions improve the quality of electricity produced by renewables and can help increase renewable uptake in the energy market.鈥�
During the day, for example, supplies of electricity generated from photovoltaics can be interrupted by cloud cover resulting in periods of variable power supply.
鈥淭hese fluctuations are bad for the electricity grid,鈥� Mr West says. 鈥淩apid variations in electricity flow can destabilise the grid and result in blackouts and other unwanted side-effects, but your fridge can help smooth out these fluctuations if it turns on and off at the right time.
鈥淭he fridges work together to decide when to cool down, and thus consume power, based on how much surplus power will be available. They are able to anticipate power shortages and change their running schedules accordingly to use as little power as possible during these times. In short, the fridges are working cooperatively to use the available power supply efficiently.鈥�
The fridges can also be used to store energy.
鈥淭he surplus electricity produced by solar panels can be used to lower the fridge temperature a few degrees more than necessary to create a thermal energy store which will keep the fridge鈥檚 contents cold during the night,鈥� Mr West says. 鈥淎nother benefit is that by reducing the amount of electricity required during peak-demand periods, we can avoid the need to build more network infrastructure such as new power stations.
鈥淯sing less electricity is always preferable to generating more and is the simplest way to reduce greenhouse gas emissions. Refrigeration can be very energy intensive but by harnessing renewable power this technology offers a low-emission solution to keeping food and other perishables cold.鈥�
CSIRO is currently seeking commercial partners to further develop the technology.
Provided by CSIRO
