Results 11 to 20 of about 260,551 (207)

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   +3 more sources

Topology optimization method of district heating system considering load uncertainty

open access: yesEnergy Reports, 2023
With the implementation of the carbon peaking and carbon neutrality strategy, China's heating system has witnessed various transformative trends, including source-network-load integration and the synergistic utilization of fossil and renewable energy ...
Jiaying Chen   +6 more
doaj   +1 more source

Transition towards university campus carbon neutrality by connecting to city district heating network

open access: yesEnergy Reports, 2022
The campus of Tallinn University of Technology consists of 26 buildings with a total annual heat demand of approximately 20 GWh. A local natural gas-fired boiler provides annually approximately 13 GWh of heating to 12 buildings in the campus and 14 ...
Pauli Hiltunen   +4 more
doaj   +1 more source

A Data-Driven Method for Fault Detection and Isolation of the Integrated Energy-Based District Heating System

open access: yesIEEE Access, 2020
Effective fault detection and isolation can improve the safety, reliability and efficiency of the district heating system. In order to detect and locate the sensor, actuator and component faults in the district heating system with faster response speed ...
Mengshi Li   +4 more
doaj   +1 more source

Determining the possibility of placing turbine systems for hydraulic regulation and production of electrical energy in the District Heating Network in Krakow [PDF]

open access: yesE3S Web of Conferences, 2021
This article presents the methods of specifying the potentiality of energy recovery in the turbine installations projected to hydraulic regulation of the heating medium in the Krakow District Heating System.
Natkaniec Piotr, Dzierwa Piotr
doaj   +1 more source

Daily heat load variations in Swedish district heating systems

open access: yesApplied Energy, 2013
AbstractHeat load variations in district heating systems are both seasonal and daily. Seasonal variations have mainly its origin from variations in outdoor temperature over the year. The origin of daily variations is mainly induced by social patterns due to customer social behaviours. Heat load variations cause increased costs because of increased peak
Gadd, Henrik, Werner, Sven
openaire   +2 more sources

District Heating and Cooling Systems

open access: yes, 2021
Decarbonisation of the energy sector is a crucial ambition towards meeting net-zero targets and achieving climate change mitigation. Heating and cooling accounts for over a third of UK greenhouse emissions and, thus, decarbonisation of this sector has attracted significant attention from a range of stakeholders, including energy system operators ...
Iván, De la Cruz,   +1 more
openaire   +3 more sources

Application of large underground seasonal thermal energy storage in district heating system: A model-based energy performance assessment of a pilot system in Chifeng, China [PDF]

open access: yes, 2018
Seasonal thermal energy storage (STES) technology is a proven solution to resolve the seasonal discrepancy between heating energy generation from renewables and building heating demands.
Guo, Fang   +4 more
core   +2 more sources

The impact of heating systems scenarios on air pollution at selected residential zone: a case study using AERMOD dispersion model

open access: yesEnvironmental Sciences Europe, 2023
The present case study considers fuel base substitution in operation of actual district heating system and in other scenario replacing of district heating system by individual heating system in each apartment building and non-residential building in ...
Jozef Salva   +5 more
doaj   +1 more source

Comparison of 4th and 5th generation district heating systems [PDF]

open access: yesE3S Web of Conferences, 2021
In a pursuit to increase the efficiency of district heating system there has been a continuous focus to reduce the system operating temperatures. This has led to the current state of the art district heating systems, commonly referred to as the 4th ...
Gudmundsson Oddgeir   +2 more
doaj   +1 more source

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