Konferensartikel

Simulations of different peak load cutting scenarios in district heating of buildings were performed. Decrease in percentages of 30%, 50%, and 70% in peak loads was analyzed for the two modelled apartment buildings. Simulation results show that even 70% peak load cuts are possible in individual buildings. However, results also reveal that for some buildings 30% peak load cuts would require compromising with the indoor temperature. Therefore, it is important to take into account the different heat storing capacities available in each of the buildings. In future, systems with multiple buildings will be studied to effectively utilize individual heat storing capacities to cut city level peak loads. Simulations presented in this article show that better energy efficiency in district heating can be achieved by predicting the energy consumption and utilizing the thermal mass of a building.

district heating, peak load cutting, optimization, indoor temperature prediction, modelling