Results 1 to 10 of about 26,889 (312)

Digitalization of district heating and cooling systems

open access: yesEnergy Reports, 2021
District heating and cooling (DHC) networks are traditionally operated with a limited number of controls to secure the required supply task and to optimize economics and ecologic performance. An optimized heat generation and overall network operation is possible with more information on the demand and flexibility options.
Dietrich Schmidt, Schmidt, Dietrich
openaire   +3 more sources

General Problems of Moldovan District Heating Systems [PDF]

open access: yesProblems of the Regional Energetics, 2016
The paper presents a short description of the evolution of the district heating systems in the Republic of Moldova. It describes the current situation of the district heating systems, reflects economical and technical aspects and problems the thermal ...
Chernei M., Leu V.
doaj   +2 more sources

Performance Analysis of a District Heating System [PDF]

open access: yesEnergies, 2013
Lowering the exergy content of heat required for heating purposes decreases the primary energy consumption. District heating systems are often an important link between facilities that generate heat with low exergy content and consumers.
Tatiana Morosuk   +3 more
doaj   +4 more sources

Successful implementation of low temperature district heating case studies

open access: yesEnergy Reports, 2021
Low temperature district heating is recognized as a key technology for the (cost-) efficient integration of renewable energy and waste heat sources in our energy systems.
Dietrich Schmidt   +6 more
doaj   +2 more sources

Essential improvements in future district heating systems

open access: yesEnergy Procedia, 2017
Abstract The major common denominator for future efficient fourth generation district heating systems is lower temperature levels in the distribution networks. Higher efficiencies are then obtained in both heat supply and heat distribution. Heat supply becomes more efficient with respect to combined heat and power, flue gas condensation, heat pumps ...
Averfalk, Helge, Werner, Sven
openaire   +5 more sources

Combined District Heating System CHP- Local HP [PDF]

open access: yesProblems of the Regional Energetics, 2020
The work relates to the problems of using heat pumps in district heating systems. The aim of the study is to increase the energy economic efficiency of combined heat supply systems with heat pumps using natural refrigerants.
Sit M.L.   +3 more
doaj   +1 more source

Landscape of district heating systems in Germany – Status quo and categorization

open access: yesEnergy Conversion and Management: X, 2021
Studies on decarbonizing district heating systems are either system specific or use artificial district heating systems. In contrast to the liberalized electricity sector, there are no disclosure obligations in the district heating sector.
Merlin Sebastian Triebs   +3 more
doaj   +1 more source

Evaluation and Optimization of heat Pump Combined District Heating System: A Case Study of China

open access: yesEnergies, 2022
The district heating area in China is continuously increasing, which brings an increase in district heating load. In order to solve the shortage of heating power and realize the carbon neutral target, this study proposes two retrofit schemes for district
Ling Cheng   +9 more
doaj   +1 more source

Energy system benefits of combined electricity and thermal storage integrated with district heating

open access: yesInternational Journal of Sustainable Energy Planning and Management, 2021
In the development towards a smart and renewable energy systems with increasing supply of electricity from fluctuating sources there is an increasing need for system flexibility.
Rasmus Lund
doaj   +1 more source

Thermal Transients in District Heating Systems [PDF]

open access: yesEnergy, 2019
Heat fluxes in a district heating pipeline systems need to be controlled on the scale from minutes to an hour to adjust to evolving demand. There are two principal ways to control the heat flux - keep temperature fixed but adjust velocity of the carrier (typically water) or keep the velocity flow steady but then adjust temperature at the heat producing
Michael Chertkov, Nikolai N. Novitsky
openaire   +2 more sources

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