This paper concerns the evaluation of a 500 kW solar assisted heat pump system with combined ice storage installed on "La Cigale", a 19'000 m2 retrofitted multi-family building complex situated in Geneva. The presented results are based on a detailed monitoring campaign, covering a full year of operation, in real use conditions. After presenting the system concept, the system performance is analyzed by way of a detailed Sankey diagram (heat and electricity flows between the various production units, heat storages, and demand units), along with specific analysis of the diverse sub-systems. As a complement to the monitoring results, we present a simulation tool that was specifically developed for this type of application, and its validation against monitoring data, in terms of annual values and monthly profiles of the diverse energy flows.
Hollmuller, P., De Oliveira, F., Graf, O., & Thiele, W. (2017). Solar assisted heat pump with ice storage for a 19’000 m2 retrofitted multi-family building complex. In Energy Procedia (Vol. 122, pp. 271–276). Elsevier Ltd. https://doi.org/10.1016/j.egypro.2017.07.321