Determination of the performance of solar systems with the calorimetric method

M. Meir*, J. Rekstad, M. Peter, L. Henden, B. Sandnes

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    6 Citations (Scopus)


    A calorimetric method is applied to determine the solar system performance by in-situ measured data. The heat store is interpreted as a calorimeter and the information on charge and discharge is extracted from the shape analysis of the heat store's temperature profile. The method is applicable to any heating system which includes a heat store. In the present paper, this procedure is presented and applied to determine the solar gain for a large solar system for domestic hot water preparation and a solar combisystem. The uncertainty of this method is in the range of ±10%. The results obtained by the calorimetric method are compared to TRNSYS simulations.

    Original languageEnglish
    Pages (from-to)195-207
    Number of pages13
    JournalSolar Energy
    Issue number3
    Publication statusPublished - 2002


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