Download - Fachvereinigung Wärmepumpen Schweiz FWS

News aus der Wärmepumpen-Forschung
19. Tagung des BFE-Forschungsprogramms
«Wärmepumpen und Kälte»
26. Juni 2013, HTI Burgdorf
Seite 114
Figure 5: the boundary defining the SHP+ performance factor includes all element inside the
system even all pumps and fans
Evaluation of the environmental impact
In order to compare systems and technologies in terms of their environmental impact,
T44A38 decided that two main indicators could be used:
‐ CEDNRE - Cumulative Energy Demand (CED), non-renewable: It quantifies the nonrenewable
primary energy used to provide the final energy, including the energy used
for construction of the electric grid and power plants. This indicator accounts for the
primary energy from fossil, nuclear and primary forest resources (i.e. original forests
that are destroyed and replaced by farmland) defined in terms of [kWhPE / kWhFE]
‐ GWP: Global Warming Potential is the weighted addition of the emission of different
greenhouse gases when providing final energy, including emissions generated during
construction of the electric grid and power plants. It is expressed in terms of
[kg_CO2_eq/kWhFE] for a time frame of 100 years.
Participants in T44A38 are free to use these indicators when presenting their results.