System technology for residential construction
Heat supply for an old people's home (2016)

Our project partner was asked to develop an energy concept for an old people's home in order to save significant energy costs. The demand was approx. 600,000 kWh of heat, there were three self-sufficient heating stations in the building complex, which was constantly being expanded.

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    On the heat side, a CHP unit was used to cover the base load, a gas condensing boiler covers the peak load in the central heating system. The heat is distributed in 3 stratified storage tanks with a total capacity of 6,000 L, whereby one of the storage tanks is supplied directly from the largest of the 3 stratified storage tanks in a separate building via a 70 m long district heating pipe. For hygienic and efficient fresh water production, single or two-stage drinking water heaters from ratiotherm are used at each of the storage tanks. Each building complex has its own central controller for controlling the system components - communication between them is controlled via a bus.

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