Ydelsesstatistik for mindre brugsvandsanlaeg. Erfaringer fra det foerste aars maalinger. (Output statistics for smaller domestic water systems. Experiences gained from the first year's measurements)
(Englisch)
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The results of the first year's measurements taken on 12 solar water- heating systems in Zealand, Denmark, are presented in addition to short descriptions of operational experiences gained at 11 systems located in Jutland and 3 on Funen. Each system was equipped with measuring equipment so that the solar collectors' production in kWh could be read from the meter. Other measuring equipment registered the household's consumption of hot water. Hour-counters were installed on supplementary heat sources so that it was possible to registrate operation hours for oil/gas boilers etc. Results are compared with the theoretic output calculated by the computer program Solpakken. This program is based on input data on weather and water consumption and reckons the monthly output. The actual results tallied with the theoretical ones, except in a few cases where the output was less than expected. The causes of the lower output were reckoned to be tubes that were not insulated and/or were too long, shadowing by large trees or building segments, or impractical positioning of the solar heating tank. (AB)
Ydelsesstatistik for mindre brugsvandsanlaeg. Erfaringer fra det foerste aars maalinger. (Output statistics for smaller domestic water systems. Experiences gained from the first year's measurements)