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Experimental and Modelled Performance of a Building-scale Solar Thermal System with Seasonal Storage Water Tank by Curtis Meister; Ian Beausoleil-Morrison is a Energy article available to read on EtoBox.

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Building energy loads in cold climates may be largely offset with solar energy if seasonal thermal energy storage is employed. This article describes a full-scale experimental solar thermal system equipped with a 36 m3 buried water tank for seasonal storage. The solar thermal system provides space heating and domestic hot water to an energy-efficient two-storey research house in Ottawa, Canada. Long-term experiments on the system are described, which revealed key performance parameters for the system. Under-performing solar collectors were found to have the most detrimental effect on the system’s performance. Losses from the seasonal storage tank were found to exceed those predicted based on the nominally-rated insulation properties. Piping losses are shown to be non-negligible. A detailed simulation model of the building and solar thermal system was developed and validated with experimental data, and is used to demonstrate the potential performance of the solar thermal system with simple improvements to the experimental system. Results indicate the system can achieve a solar fraction of 100% for space heating loads (total load = 15 GJ) and 86% for domestic hot water loads (total l

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Author

Curtis Meister; Ian Beausoleil-Morrison

Publisher

Elsevier BV

Published

2021

Language

EN

Field

Energy (Physical Sciences)