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Sustainable heat pump systems in a transformed energy system based on renewables
Sustainable heat pump systems in a transformed energy system based on renewables
Autor:innen
Wagener-Lohse, Georg
Herausgeber
Quelle
Proceedings of ECOS 2018
(2018), 13 pages
(2018), 13 pages
Schlagwörter
Energieszenario, Emissionsminderung, Wirkungsgrad, Wärmepumpe, Umweltauswirkung
Zitation
LOHSE, Christiane und Georg WAGENER-LOHSE, 2018. Sustainable heat pump systems in a transformed energy system based on renewables. In: Proceedings of ECOS 2018 [online]. Verfügbar unter: https://openumwelt.de/handle/123456789/5766
Zusammenfassung englisch
In a number of studies, the German Environment Agency (UBA) has carried out model calculations on how the heat supply in Germany can become renewable. This paper refers to the GHG reduction scenario of UBA (GreenEe-scenario) which aims at 95% reduction in greenhouse gases by 2050 and a 60% reduction in the use of biotic and abiotic resources. Heat pump systems of different technical specifications, using geo-thermal energy and ambient heat, will then be the central heat supply technologies in the energy system. If the heating requirements of buildings can be reduced by 2/3 by 2050, heat supply is feasible with district heating (with a share of 18%), and heat pump systems (with a share of 76%). In the course of sector inter-connection, renewable electricity is increasingly being used in the low-exergy heat sector. The paper briefly describes the energy consumption of the German buildings sector and highlights the needs to reduce greenhouse gas emissions. A comparative discussion of the UBA study with studies and scenarios from other institutes leads to the identification of the most effective measures to decarbonise the buildings sector in a resource-saving manner. All considerations show that the goal can be achieved primarily with heat pump systems. The paper lists the low temperature heat sources for heat pump systems, and compares their different utilization techniques and the respective energy yield. Technological innovations and the plan-ning processes must be aimed at minimizing negative environmental effects; the protection requirements for the environmental media concerned, such as groundwater and soil, must be met. Heat pump systems must not be used if the implementation results in deterioration of the environmental status. In: Proceedings of ECOS 2018 : the 31st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems / Cost, Optimization, Simulation and Environmental Impact of Energy Systems 31st International Conference on Efficiency Herausgebendes Organ. - Guimarães. - (2018), Paper #408