Laboratory Tests of Small SDHW Systems

Simon Furbo, Louise Jivan Shah

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


    A test facility for Small SDHW systems was built in 1992. In the test facility up to 10 SDHW systems can be tested side-by-side under the same realistic conditions. Since 1992 16 different systems have been tested in the facility. Both test systems and marketed systems from Danish as well as foreign manufacturers have been tested.The thermal performances of the systems have been measured for periods with a duration of about 1 year. In this way direct comparisons of the thermal performances of the different systems are possible.Further, measured and calculated thermal performances for all the systems have been compared for different weather periods. Detailed simulation models were used to calculate the thermal performances. The models were modified in such a way that good agreement between measurements and calculations were achieved for different periods.By means of the modified simulation models the yearly thermal performances of the tested systems have been determined with the Danish Test Reference Year as the weather data. Based on calculations with the models improvements of the design of the different systems have been recommended.Experience from the operation of the different systems have been gained and the suitability of different system designs have been determined.Based on the investigations, recommendations for future improvements and development of small SDHW systems are given.
    Original languageEnglish
    Title of host publication7th International Conference on Solar Energy at High Latitudes. North Sun'97
    Place of PublicationEspoo-Otaniemi
    PublisherHelsinki University of Technology
    Publication date1997
    Publication statusPublished - 1997
    Event7th International Conference on Solar Energy at High Latitudes - Espoo-Otaniemi, Finland
    Duration: 9 Jun 199711 Jun 1997
    Conference number: 7


    Conference7th International Conference on Solar Energy at High Latitudes

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