SOLSCALE: Software to Predict Scaling in Solar Domestic Hot Water Systems

    Research output: Contribution to conferencePaper

    Abstract

    The software SOLSCALE was developed to predict calcium carbonate scaling in solar domestic hot water (SDHW) systems. It requires inputs of make-up water chemistry, system design specifications, water demand, and location. Scaling predictions are based on an equilibrium water chemistry model and a system operating temperature model. The equilibrium water chemistry model accounts for ionactivities, calcium complexes, and temperature dependencies in the equilibrium constants. Operating temperatures are interpolated from a database of representative values based on the location's weather, and the nondimensional variables SA/L (insolation x collector area/energy load) and V/Q (storage volume/daily load volume). The severity of scaling is predicted and recommendations are made toalleviate the problem when appropriate. SOLSCALE is available on 3 1/2' disks for PCs with Windows Version 3.1 or later.
    Original languageAmerican English
    Pages153-158
    Number of pages6
    StatePublished - 1996
    EventSolar 96: 1996 American Solar Energy Society Annual Conference - Asheville, North Carolina
    Duration: 13 Apr 199618 Apr 1996

    Conference

    ConferenceSolar 96: 1996 American Solar Energy Society Annual Conference
    CityAsheville, North Carolina
    Period13/04/9618/04/96

    Bibliographical note

    Work performed by University of Texas at Austin, Austin,Texas

    NREL Publication Number

    • NREL/CP-23300

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