The role and costs of large-scale heat pumps in decarbonising existing district heating networks – A case study for the city of Herten in Germany

Popovski, Eftim; Aydemir, Ali; Fleiter, Tobias; Bellstädt, Daniel; Büchele, Richard; Steinbach, Jan

doi:10.1016/j.energy.2019.05.122

Cited by 44 publications

(12 citation statements)

References 23 publications

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“…Section 3.3) deal with this subject. Since 2016, there have always been at least six articles on this topic, including the last nine in 2019: [46][47][48][49][50][51][52][53][54]. Furthermore, the top five of the most relevant journals increasingly deal with district heating in studies on MESP: most frequent subject in Energy Policy and Applied Energy and second most frequent subject in Energy as well as Energies (cf.…”

Section: District Heatingmentioning

confidence: 99%

Reviewing Municipal Energy System Planning in a Bibliometric Analysis: Evolution of the Research Field between 1991 and 2019

Weinand

2020

Energies

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In the context of the energy transition, energy system planning is becoming increasingly relevant for decentralized systems. Motivated by the strong increase of publications on municipal energy system planning (MESP), these studies are subjected to a bibliometric analysis in this paper. The 1235 articles, which are based on the Web of Science database, are examined using the R-tool bibliometrix. The study shows that China is the most important contributor with 225 articles, followed by the USA (205) and Germany (120). Most cross-country collaborations were conducted between China and Canada, focusing mainly on uncertainties in MESP. Among the institutions, the North China Electric Power University is responsible for most articles (42). The core journals on MESP are Energy, Applied Energy, Energy Policy, Energies and Renewable Energy, which published 37% of the 1235 articles. Publications on MESP focus on renewable energies, optimization and hybrid energy systems. Furthermore, district heating seems to be a core topic in MESP and is addressed in three of the top five most cited articles. The demonstration of global research trends in MESP can support researchers in identifying the relevant issues regarding this expanding and transforming research area.

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Section: District Heatingmentioning

confidence: 99%

Reviewing Municipal Energy System Planning in a Bibliometric Analysis: Evolution of the Research Field between 1991 and 2019

Weinand

2020

Energies

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“…For industrial and large-scale processes, multiple HP units in serial connection increase overall system efficiency, and therefore the Lorentz COP [9,18] would describe more accurately the behavior of the HP configuration, since it takes into account the logarithmic mean temperature of the sink and source, as well as both inlet and outlet temperatures of the condenser and evaporator. According to Reinholdt et al [18], the maximum theoretical COP of a heat pump can be estimated by calculating Lorentz COP, defined as follows:…”

Section: Cop H Estimation Modelmentioning

confidence: 99%

“…In the same line, the ground-source heat pump (GSHP) is a key technology for decarbonization of existing heating and cooling, which are nowadays mostly based on the use of fossil fuels [8][9][10]. The work of Paiho et al [8] revealed the importance of large-scale heat pumps for increasing the flexibility of Finnish energy systems.…”

Section: Introductionmentioning

confidence: 99%

Aquifer Thermal Energy Storage (ATES) for District Heating and Cooling: A Novel Modeling Approach Applied in a Case Study of a Finnish Urban District

et al. 2020

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Aquifer thermal energy storage (ATES) combined with ground-source heat pumps (GSHP) offer an attractive technology to match supply and demand by efficiently recycling heating and cooling loads. This study analyses the integration of the ATES–GSHP system in both district heating and cooling networks of an urban district in southwestern Finland, in terms of technoeconomic feasibility, efficiency, and impact on the aquifer area. A novel mathematical modeling for GSHP operation and energy system management is proposed and demonstrated, using hourly data for heating and cooling demand. Hydrogeological and geographic data from different Finnish data sources is retrieved in order to calibrate and validate a groundwater model. Two different scenarios for ATES operation are investigated, limited by the maximum pumping flow rate of the groundwater area. The additional precooling exchanger in the second scenario resulted in an important advantage, since it increased the heating and cooling demand covered by ATES by 13% and 15%, respectively, and decreased the energy production cost by 5.2%. It is concluded that dispatching heating and cooling loads in a single operation, with annually balanced ATES management in terms of energy and pumping flows resulted in a low long-term environmental impact and is economically feasible (energy production cost below 30 €/MWh).

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“…To support heat planning at various scales in general and to establish new local heating networks, preferentially operating with heat from renewable resources, reliable data on heat demand for a given area is essential [8][9][10][11][12][13][14]. Areas probably suited for district heating can be detected based on information on heat demand density [15].…”

Section: Introductionmentioning

confidence: 99%

Improving GIS-Based Heat Demand Modelling and Mapping for Residential Buildings with Census Data Sets at Regional and Sub-Regional Scales

2021

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Heat demand of buildings and related CO2 emissions caused by energy supply contribute to global climate change. Spatial data-based heat planning enables municipalities to reorganize local heating sectors towards efficient use of regional renewable energy resources. Here, annual heat demand of residential buildings is modeled and mapped for a German federal state to provide regional basic data. Using a 3D building stock model and standard values of building-type-specific heat demand from a regional building typology in a Geographic Information Systems (GIS)-based bottom-up approach, a first base reference is modeled. Two spatial data sets with information on the construction period of residential buildings, aggregated on municipality sections and hectare grid cells, are used to show how census-based spatial data sets can enhance the approach. Partial results from all three models are validated against reported regional data on heat demand as well as against gas consumption of a municipality. All three models overestimate reported heat demand on regional levels by 16 to 19%, but underestimate demand by up to 8% on city levels. Using the hectare grid cells data set leads to best prediction accuracy values at municipality section level, showing the benefit of integrating this high detailed spatial data set on building age.

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The role and costs of large-scale heat pumps in decarbonising existing district heating networks – A case study for the city of Herten in Germany

Cited by 44 publications

References 23 publications

Reviewing Municipal Energy System Planning in a Bibliometric Analysis: Evolution of the Research Field between 1991 and 2019

Reviewing Municipal Energy System Planning in a Bibliometric Analysis: Evolution of the Research Field between 1991 and 2019

Aquifer Thermal Energy Storage (ATES) for District Heating and Cooling: A Novel Modeling Approach Applied in a Case Study of a Finnish Urban District

Improving GIS-Based Heat Demand Modelling and Mapping for Residential Buildings with Census Data Sets at Regional and Sub-Regional Scales

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