Created by Yann Menez and Frédéric Manoury, DOMELYS Technologies has developed an innovative system to filter gray water "hot" then make the move in a heat exchanger to warm water cold and reduce the cost of heating water.
An innovative technology : CalH2O
CalH20 is the first system designed by the company Domelys Technologies, which has developed in the very specific niche of the recovery of waste heat.
Its principle is simple: recover some of the calories water showers (all days above 30 ° C) to transmit them to the cold water before entering the water heater. "Our philosophy was to meet this need with a very robust process, autonomous and maintenance free, totally transparent to the user and especially depreciable within 5 years," explains Frédéric Manoury, associate director.The system CalH2O, whose heart is a direct heat exchanger (the water circulates within the heat exchanger and water worn out), puts out a filtration step specifically developed for the application (with automatic cleaning system) to protect the heat exchanger. We also note that the incoming cold water is treated against tartar for the same reasons to protect the entire network of water heaters.
Applications
This recovery of calorie can reduce the cost of hot water from 33% to 45%, as each degree earned on the incoming water upstream of the heater corresponds to a saving of 1,16 Wh / liter. The first target of technology Domelys are all large consumers of hot water, at least 180 m3 per year of hot water (55 ° C), so for example hairdressers (250 to 300 m 3 / year) or equipment collective (gyms, swimming pools etc.).. Returns on investments are always less than five years and even in certain cases of about two years. The pilot run last year with the process that is now marketing.
Source : Green news
More information : Domelys
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