Volume 130 (2015)


No. 130, 2015, 109–123

The autonomic energy system of the residential building based on renewable energy sources


The work presents the concept of a single-family building which is supplied only with the energy from local renewable energy source, the one which does not have a possibility of cooperation with the national energy system or with the local heat supply company. Only commonly occurring and available renewable energy resources are taken into account, that is solar radiation and kinetic energy obtained from wind, so technologies connected with burning were switched off, with the emission of carbon dioxide. Due to the stochastic nature of abundance of the materials, periodic production and accumulation are provided and, if necessary, the recovery of energy from batteries. There was a selection of devices performing the conversion of energetic resources into electricity and heat. Among those devices we can enumerate: wind turbines, photovoltaic cells and photothermal absorbers. In order to accumulate the heat, the water-battery was selected. It was thermally isolated from the surrounding. In order to accumulate electricity, the chemical battery was used. During the first part of the heating season, the building was heated on the basis of an exchange of heat between the heat accumulator and the building. In the second part of the heating season, for the purpose of heating, the heat pump was turned on. For this pump, the water-battery was the bottom heat source. During its work, the heat pump was powered by the chemical battery which accumulates electricity. 


solar collectors, water heat accumulators, wind turbines, photovoltaic cells, photothermal absorbers