Korrelationsmethode zur Abschätzung der monatlichen Solargewinne durch TWD
Abstract
If the impact of transparent insulation of masive walls on the heat demand of buildings shall be investigated, simulation tools are valuable, but very often too complex to use. Therefore attempts are being made to develop methods, which are easy to use and have acceptable accuracy. In principle they can be used with a pocket calculator only. The efficiency of most solar systems can be easily calculated on a monthly basis, if the proper input values are known. The utilisability of solar gains, however, is a function of many parameters. The most important one certainly is the ratio of solar gains divided by the load of the system SLR (Solar-Load-Ratio). Based on this usually correlations from detailed simulations are being developed to estimate the utilisability, thereby neglecting minor dynamic effects. This approach has been used for TI-walls based on previous work. Results show that the accuracy is quite good for the calculation of annual and monthly heat demand and for monthly mean i nternal temperatures.
