Swiss Energy Storage Overview

by the BFH-CSEM Energy Storage Research Centre

Optimierung der Einbindung eines 28 m3 Wasser-Speichers in die Beheizung und Warmwasser-Versorgung eines Einfamilienhauses mit W/W-Wärmepumpe und Solarkollektoren

Abstract from the ARAMIS database

Simulations of a pilot object (single family home with 185m2 heated surface area, built in 2009 respecting the SIA80/1 norm) with solar panels (40m2), a W/W heat pump (6.4kW) with a geothermal probe (150m) as well as two thermal storages containing water (1: nonstratified, 28m3, 2: stratified, 1.65m3) will help identify the weak spots of conventional, commonly used system controls.

In a first stage of this task, the building and its technical installations were examined. Additionally, a simulation of the annual heating energy consumption was established. Furthermore, the seasonal storage, the utility storage and the solar panels were simulated during several days with and without heating load and validated based on real measured data.

The point balance after the first year of operation (without optimisations) shows that the calculated potential is far from being reached. For the calculated annual heating demand of 10’800 kWh [3] and the DHW demand of 3’400kWh [4], 3’730kWh of electricity were consumed, corresponding to a SPF of 3.8. Generally, after the drying phase of its concrete structure, the heating consumption of the building diminishes, and a higher SPF (with optimisations SPF >8) can be expected.

Simulations of the building are mainly realised by the use of CARNOT Blockset [1] and the design of experiments for the optimisation of the control-system with ModeFrontier [2].

Start End Budget
2010-04-01 2012-03-31 Fr. 97’200

Links

https://www.aramis.admin.ch/Grunddaten/?ProjectID=29704