Results 21 to 30 of about 14,916 (118)

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, 2020
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

Local Heating Networks with Waste Heat Utilization: Low or Medium Temperature Supply?

open access: yesEnergies, 2020
District heating enables an economical use of energy sources that would otherwise be wasted to cover the heating demands of buildings in urban areas. For efficient utilization of local waste heat and renewable heat sources, low distribution temperatures ...
Hanne Kauko, Daniel Rohde, Armin Hafner
doaj   +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

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

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

Optimal Design and Dispatch of Electrically Driven Heat Pumps and Chillers for a New Development Area

open access: yesEnvironmental and Climate Technologies, 2020
Large-scale heat pumps (HPs) and refrigeration plants are essential technologies to decarbonise the heating and cooling sector. District heating and cooling (DHC) can be supplied with low carbon footprint, if power generated from renewable energy sources
Pieper Henrik   +4 more
doaj   +1 more source

District Heating System Using Heat Pump Installations and CHP [PDF]

open access: yesProblems of the Regional Energetics, 2015
The article describes the district heating system, in which part of the heat of return water thermal power is used to supply heat to the district heating puThe article describes the district heating system, in which part of the heat of return water ...
Sit M.L., Burciu V.I.
doaj  

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