Results 21 to 30 of about 4,619,412 (287)

Integration of space heating and hot water supply in low temperature district heating [PDF]

open access: yesEnergy and Buildings, 2016
Abstract District heating may supply many consumers efficiently, but the heat loss from the pipes to the ground is a challenge. The heat loss may be lowered by decreasing the network temperatures for which reason low temperature networks are proposed for future district heating. The heating demand of the consumers involves both domestic hot water and
Elmegaard, Brian; id_orcid 0000-0002-0503-6286   +3 more
openaire   +2 more sources

Assessment of a combination of three heat sources for heat pumps to supply district heating [PDF]

open access: yesEnergy, 2019
Abstract This paper reports a study on how hourly temperature variations of different heat sources influence the seasonal coefficient of performance (SCOP) of heat pumps (HPs) when supplying district heating. The considered heat sources were: groundwater, seawater, air and a combination of the three.
Henrik Pieper   +3 more
openaire   +1 more source

Analysis of the Impact of Decreasing District Heating Supply Temperature on Combined Heat and Power Plant Operation

open access: yesEnvironmental and Climate Technologies, 2014
District heating systems are widely used to supply heat to different groups of heat consumers. The district heating system offers great opportunities for combined heat and power production.
Bolonina Alona   +2 more
doaj   +1 more source

Minimizing the supply temperature at the district heating plant – dynamic optimization [PDF]

open access: yesE3S Web of Conferences, 2019
The constraint contains two elements, namely the heat losses and the electricity consumption for pumping at the producer. The aim was to achieve the lowest acceptable costs in an operation. The options with the supply temperature at the area starting point set to 80/60, then 60/40, and eventually 50/30 (low temperature, 4th generation district heating)
Chicherin, Stanislav   +2 more
openaire   +3 more sources

Performance Analysis of a District Heating System

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   +1 more source

Analysis of the Asset Structure of Hungarian District Heat Suppliers, with Special Regard to the Fixed Assets, Based on the Companies’ 2009-2017 Accounts

open access: yesTheory, Methodology, Practice, 2019
Nowadays in Hungary, district heating has 677,000 fee payers in 93 settlements, for the provision of which 89 companies are responsible. There are, however, differences in the ownership background, in the technical structure, in the activities carried ...
Gábor Béla Süveges
doaj   +2 more sources

Search the optimal ratio of system’s component reliability parameters and the heat capacity of prosumers in the district heating system [PDF]

open access: yesE3S Web of Conferences, 2020
The paper presents a methodology for ensuring the reliability of heat supply to prosumer connected to a district heating system, by using the heat capacity of its own heat source and optimization of failure rates of system components.
Stennikov Valery, Postnikov Ivan
doaj   +1 more source

Simulation Analysis of District Heat-Source Water Supply System Configurations in Urban Areas with Warm Climates [PDF]

open access: yesE3S Web of Conferences
. This study investigates the viability of implementing a district heat-source water supply (DHSWS) system in urban areas of warm regions concerning energy efficiency.
Kurobe Keisuke, Hideki Tanaka
doaj   +1 more source

Numerical Analysis of a medium scale latent energy storage unit for district heating systems [PDF]

open access: yes, 2011
The present paper describes the application of computational fluid-dynamics (CFD) to the design and characterization of a medium scale energy storage unit for district heating systems.
Colella, Francesco   +3 more
core   +1 more source

Improving the efficiency of heating boiler plants by using the variable-frequency drive with different methods of heat supply regulation

open access: yesMATEC Web of Conferences, 2018
The aim of the work is to improve the energy efficiency of heating boiler plants by reducing the spe-cific electric energy consumption for heat supply by using the variable-frequency drive (VFD) with different methods of heat supply regulation. Hydraulic
Pyatin Andrey   +2 more
doaj   +1 more source

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