scholarly journals Solar District Heating Systems for Small Districts with Medium Scale Seasonal Thermal Energy Stores

2016 ◽  
Vol 91 ◽  
pp. 537-545 ◽  
Author(s):  
Dan Bauer ◽  
Roman Marx ◽  
Harald Drück
Keyword(s):  
Thermal Energy ◽  
District Heating ◽  
Heating Systems ◽  
Medium Scale ◽  
District Heating Systems ◽  
Energy Stores

scholarly journals Numerical analysis of a medium scale latent energy storage unit for district heating systems

Energy ◽  
2012 ◽  
Vol 45 (1) ◽  
pp. 397-406 ◽  
Author(s):  
Francesco Colella ◽  
Adriano Sciacovelli ◽  
Vittorio Verda
Keyword(s):  
Energy Storage ◽  
Numerical Analysis ◽  
District Heating ◽  
Storage Unit ◽  
Heating Systems ◽  
Energy Storage Unit ◽  
Latent Energy ◽  
Medium Scale ◽  
District Heating Systems

scholarly journals Trends in the development of the district heating systems of Ukraine

2021 ◽  
Vol 2021 (1) ◽  
pp. 52-59
Author(s):  
V.O. Derii ◽  
Keyword(s):  
Thermal Energy ◽  
Heat Supply ◽  
District Heating ◽  
Hot Water ◽  
Low Carbon ◽  
Heating Systems ◽  
Fuel Balance ◽  
Generation Structure ◽  
District Heating Systems ◽  
Low Carbon Development

We considered trends in the development of district heating systems (DHS) in Europe and Ukraine. It was established that DHS are widely used and make a significant contribution to the heat supply of European countries. In the European Union as a whole, the share of DHS is 13%, and there are plans to increase it to 50% in 2050 with a wide use of cogeneration and renewable sources of energy, including environmental energy with using heat pumps. Ukraine is one of the countries with a high level of DHS, but, at present, there are negative trends to reducing their contribution to the total heat supply for heating and hot water supply – from 65.2% in 2014 to 52% in 2017. In several cities, DHS ceased to function at all. The main equipment of the DHS of Ukraine is physically worn out and technologically obsolete and needs to be renewed by means of wide reconstruction, modernization, and technological re-equipment. We determined factors and the level of their influence on the demand in thermal energy of DHS. It was established that the factors reducing demand have a much greater potential. We created forecasts of demand for thermal energy, fuel balance, and the structure of DHS generation by 2050. It is shown that the demand for thermal energy from DHS will decrease and reach about 35 million Gcal in 2050. To ensure the low-carbon development of Ukraine in the structure of thermal energy generation in DHS, the use of coal-fired CHPs and boilers, as well as boilers on petroleum products will be significantly reduced. The share of natural gas in the fuel balance of DHS of Ukraine will also decrease, but it will be the main fuel for the period of technological transformation of generating capacities under conditions of the low-carbon development of Ukraine. The use of technologies for the production of thermal energy from biomass, waste, environment, and electricity will gradually increase, and in 2050, using these sources will produce about 23.8 million Gcal, which is more than 60% of the total thermal energy of DHS. Keywords: district heating systems, thermal energy, factors of influence, demand, fuel balance, generation structure

scholarly journals Optimal Energy Portfolios in the Heating Sector and Flexibility Potentials of Combined-Heat-Power Plants and District Heating Systems

2021 ◽  
pp. 219-234
Author(s):  
Maciej Raczyński ◽  
Artur Wyrwa ◽  
Marcin Pluta ◽  
Wojciech Suwała
Keyword(s):  
Energy Storage ◽  
Thermal Energy ◽  
Emission Reduction ◽  
Power Plants ◽  
District Heating ◽  
Energy System ◽  
Heat Power ◽  
Heating Systems ◽  
District Heating Systems

AbstractThis chapter examines the role of centralized district heating (DH) systems in context of energy system flexibility and decarbonization. The analysis is performed by applying the model TIMES-Heat-EU. Capacity expansion and operation of the district heating generation units is mainly driven by the evolution of the district heating demand, which varies between the REFLEX scenarios. In all scenarios fuel and technology switches toward bioenergy and natural gas leading to CO2 emission reduction. Since the total amount of energy produced (both heat and electricity) is the highest in the High-RES centralized scenario, the corresponding CO2 emissions for district heating are the highest as well. The CO2 emissions can be reduced by ⁓60% in 2050 compared to 2015. Furthermore, the role of thermal energy storage and power-to-heat technologies is examined.

Environmental and economic assessment of borehole thermal energy storage in district heating systems

2018 ◽  
Vol 216 ◽  
pp. 73-90 ◽  
Author(s):  
Bastian Welsch ◽  
Laura Göllner-Völker ◽  
Daniel O. Schulte ◽  
Kristian Bär ◽  
Ingo Sass ◽  
...  
Keyword(s):  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
District Heating ◽  
Economic Assessment ◽  
Heating Systems ◽  
District Heating Systems

Analysis of the principles of formation of local thermal energy markets in district heating systems

2018 ◽  
Vol 2018 (4) ◽  
pp. 51-58
Author(s):  
V.I. Deshko ◽  
◽  
A.I. Zamulko ◽  
D.S. Karpenko ◽  
◽  
...  
Keyword(s):  
Thermal Energy ◽  
District Heating ◽  
Energy Markets ◽  
Heating Systems ◽  
District Heating Systems
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