Abstract
This paper presents a numerical model of an accumulating solar wall with transparent insulation (ASW-TI). The objective of the simulation was to evaluate the energy efficiency of ASW-TI for different climatic conditions in Poland, i.e. for high, medium, and low irradiation. For each climate, the calculations were made for the entire heating period. As a result, temperature distributions in a wall at different times of the process and the energy balance of the wall in particular months and during the entire heating period were obtained.
Highlights
Energy requirements that buildings and their elements are subject to have been changing rapidly in recent years
This paper presents a numerical model of an accumulating solar wall with transparent insulation
For the wall in the Szczecinek building, the energy balance of the wall was only negative in December
Summary
Energy requirements that buildings and their elements are subject to have been changing rapidly in recent years. A transparent material is characterized by high solar radiation transmittance and low infrared losses These materials were developed in order to increase solar radiation transmittance and to enhance thermal resistance of wall systems. In this case, higher heat losses compared to walls with traditional insulation are compensated by heat gains, while the accumulating solar wall acts a heat source in a room. Different approximate methods and calculation models are used to simulate the operation of walls with a transparent insulation layer Walls of this type may be modelled dynamically in long periods as a part of a building or room in which they are located [8]. Temperature distributions in a wall at different times of the process and the energy balance of the wall in individual heating period months and during the entire heating period were obtained
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