18 May 2017

P.2.3.6 Integration of energy networks and the water cycle with surface water energy as connecting element

1 Introduction
The surface water energy concept (SWE concept) is defined as the concept of energy generation form surface water by means of heat exchange between surface water and a building service system with a heat pump. There are some typical advantages in utilizing surface water energy: the overall efficiency of the heating/cooling system can be optimized and the water quality can be improved [1]. The focus in this research is on local networks with SWE.

2 Methodology
In this research a test has been performed by defining and analyzing one test case, demonstrating the added value of the integration of energy networks and the water cycle with SWE as connecting element.

3 Research results
The added value can be found in the following performance indicators:
• Energy saving;
• CO2 emission reduction;
• Application of renewable energy sources;
• System optimization;
• Sustainability of the urban Environment.

4 Societal importance for stakeholders
This research showed that SWE can effectively contribute to objectives on energy saving and CO2 emission next to objectives on sustainability of the urban environment. The integrated networks can incorporate additional energy sources from the environment next to energy from the water cycle. System optimization is essential for integrated systems in general. In this specific case there is an additional need for system optimization because of the low exergy value of the energy from the water cycle that is used.