Utilization of Solar Combisystems in Latvian Conditions
Abstract
Solar thermal systems in combination with another auxiliary heat resources help to avoid solar thermal systems deficient. The general aim of the paper is to explore solar systems combination with different secondary fuels – biomass, natural gas, heat pump and electricity. To achieve the objectives are being carried out in a realistic analysis of the objects in the Latvian territory. The measurements and processed data were performed to determine the suitability of the particular combination of Latvian conditions - advantages and disadvantages. The good example of solar energy use is a heating system of an information building of the North Vidzeme Biosphere Reserve that is combined from solar collectors and heat pump (with 11 holes). Is used solar collectors site at the Institute of Physical Energetics (IPE) solar energy polygon, which gives very accurate data about solar energy using in Latvia. Are used data from a similar pilot projects. Simulation program for solar combisystems helps to fully capture the data of analysis. Certainly important factors in determining the effectiveness of the combination are their construction and operating value. Solar thermal systems output is affected by solar radiation availability in Latvia environment. In the paper are given results, various recommendations and few suggestions on effective solar energy use in the high latitudes.