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Thermal solar water heating in the PAC: Final report

TitleThermal solar water heating in the PAC: Final report
Publication TypeMiscellaneous
Year of Publication1992
AuthorsParadine, S., T. Schaeffer, A. Seelemann, and G. Van Decker
Keywordsenergy, renewable energy
Abstract

The University of Waterloo depends on a non-renewable fossil fuel (natural gas) to meet its heating needs. One possible application of solar energy at the university is heating the pool water at the Physical Activities Complex. The project’s major goal is to research this possibility. Related energy conservation measures, such as pool blankets, are also discussed. A number of thermal solar water heating systems were researched and simulated in detail to determine the configuration best suited for the University of Waterloo. These were two open loop systems using pool water as the working fluid (drained as required and seasonal use only) and a closed loop system using 50% glycol, 50% water as the working fluid and heat exchangers to transmit the energy. The latter option is used in the preliminary design. The last point is the most uncertain. Service water heating (laundry, showers, and wash basins) at the PAC consumes much more energy than pool heating. The consultants attempted to analyze this load but were stymied by a lack of instrumentation and knowledge of the exact load and its time distribution. The period under study was too short to determine this: a hot service water consumption profile for the entire year would be required to determine how much of this load solar energy could effectively meet… For full text, please e-mail sustainability@uwaterloo.ca