Improved Space Heating in Smart Residential Buildings by Applying Dynamic Hydraulic Balancing
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چکیده
Through the hydraulic balancing of heating systems, significant energy savings in residential buildings can be achieved. These savings refer to (primary) heating energy, as well as to (secondary) electric energy for the supporting building services. This paper addresses the use of KNXtechnology and networks (Smart Buildings) in multi-storey residential buildings to ensure a dynamic adaption of hydraulic system performance in order to increase the heating system ́s efficiency. In this paper the authors present the procedure of heating system segmentation into hydraulically independent units (meshes). Within these meshes, a dynamic hydraulic adaption towards homogenous mass flow allocation is achieved by positioning the valve ranges in each storey according to the current heating load via installed valve drivers. The control procedures are conducted by a central facility server algorithm. Heating loads are generated from the digital temperature settings in all corresponding rooms. The evaluation of current heat up demands enables maintaining hydraulic uniformity.In this paper, standards, requirements and determinats of the control algorithm are presented.
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