Results 41 to 50 of about 14,916 (118)

Optimal frequency of temperature change of a heat transfer agent on a heat source and the influence of the rate of change thereof on heat energy loss

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2023
THE PURPOSE. In modern realities, the operation of heat networks of the district heating system involves a constant search for ways to minimize heat energy losses. METHODS.
I. G. Akhmetova, K. V. Lapin
doaj   +1 more source

Economic comparison of low-temperature and ultra-low-temperature district heating for new building developments with low heat demand densities in Germany

open access: yesInternational Journal of Sustainable Energy Planning and Management, 2018
District heating risks to lose competitiveness the lower the linear heat density of a district is. The distribution network needs to be highly efficient in order to ensure economic feasibility.
Isabelle Best
doaj   +1 more source

A comparison of prosumer system configurations in district heating networks

open access: yesEnergy Reports, 2021
Prosumer-based district heating networks attract an increasing interest in energy research. There are numerous publications addressing the prosumer integration into district heating networks with a focus on grid side operation.
Daniel Zinsmeister   +4 more
doaj   +1 more source

Planning of heat supply of territories: model and algorithms

open access: yesE3S Web of Conferences, 2018
The choice of direction of heat supply systems development in cities is an important task for the authorities, district heating companies and consumers.
Mednikova Ekaterina E.
doaj   +1 more source

The Impact of Alternative Heat Supply Options on CO2 Emission and District Heating System

open access: yesChemical Engineering Transactions, 2014
The energy demand for space heating and ventilation has huge potential. The impact of three alternative energy supply solutions such as exhaust air heat pump coupled with district heating, district heating coupled with room based heat recovery ...
V. Mashatin, S. Link, A. Siirde
doaj   +1 more source

Comparison of solar district heating and renovation of buildings as measures for decarbonization of heat supply in rural areas

open access: yesSolar Energy Advances
In this study two different decarbonization strategies for rural heat supply are compared on the example of 180 buildings located in a small village in Germany with about 860 inhabitants and typically mainly old buildings, partly in half-timbered ...
Jan Kelch   +4 more
doaj   +1 more source

Bi-level modeling of district heating systems with prosumers

open access: yesEnergy Reports, 2020
The paper deals with the actual problem of the functioning and development of district heating systems in the framework of the transition to intelligent energy, in which the active consumers (prosumers) holds the key place.
Andrey Penkovskii   +2 more
doaj   +1 more source

Assessing the techno-economic impact of district heating on electrical distribution grid reinforcements

open access: yesAdvances in Applied Energy
Enhanced sector coupling across electricity, mobility, and heating sectors leads to higher efforts for distribution grid upgrades. Based on a case study, this paper evaluates the role of district heating networks in reducing electrical distribution grid ...
Jerry Lambert   +9 more
doaj   +1 more source

PAST, PRESENT AND FUTURES OF DISTRICT HEAT SUPPLIERS, WITH SPECIAL REGARD TO HUNGARIAN DISTRICT HEAT SUPPLIERS - LITERATURE REVIEW [PDF]

open access: yesAnnals of the University of Oradea: Economic Science, 2019
In recent years, many researchers displayed interest in the different types of social innovations. In the current research, the author does not aim at creating a new definition, but at examining the possibilities to generate social innovations in the ...
SÜVEGES Gábor Béla
doaj  

Optimization of the Effective Heat Supply Radius for the District Heating Systems

open access: yesEnvironmental and Climate Technologies, 2019
The problem of determining the effective (optimal) heat supply radius is considered. Heat supply radius is transportation distance of heat energy in the district heating systems (DHS), under which the highest indices of economic efficiency of district ...
Stennikov Valery   +3 more
doaj   +1 more source

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