Case study of low-temperature heating in an existing single-family house—A test of methods for simulation of heating system temperatures

Østergaard, Dorte Skaarup; Svendsen, Svend

doi:10.1016/j.enbuild.2016.05.042

Cited by 22 publications

(14 citation statements)

References 8 publications

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“…Recent studies have shown a large potential for lower DH temperatures through an improved performance of the space heating system in existing buildings from different construction periods [11], as seen in analyses of Danish single-family houses from the 1930s [12], 1950s [13], and 1980s [14]. These improvements can be achieved by targeting the control system of the heating system in the existing building stock which affects return and supply temperatures.…”

Section: Space Heating By Low-temperature Dhmentioning

confidence: 99%

The status of 4th generation district heating: Research and results

Lund

Østergaard

Chang

et al. 2018

Energy

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475

158

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Section: Space Heating By Low-temperature Dhmentioning

confidence: 99%

The status of 4th generation district heating: Research and results

Lund

Østergaard

Chang

et al. 2018

Energy

Self Cite

475

158

View full text Add to dashboard Cite

show abstract

“…This should be seriously considered as a heat source when planning a new DHN, however it is likely to be difficult in the UK due to the necessary and complicated balance between the agreement with the industry source, the DHN operator and maintaining a competitive cost to the end user. A number of studies have demonstrated that older building stock can be upgraded and integrated with lower temperature district heating networks to allow for operation at supply temperature of 45 • C for space heating [10,[18][19][20][21]. It has been shown that reducing the operating temperature of DHNs from 80/40 • C (typical of 3G DHN) to 60/30 • C can provide over 30% saving of heat losses from the network [18].…”

Section: Fourth Generation (4g) District Heatingmentioning

confidence: 99%

District Heating Challenges for the UK

Millar

Burnside

2019

Energies

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District heating uptake has grown with the increasing need for cleaner and more efficient energy supply. This has resulted in a rising number of new developments signing up to a district heating scheme, typically powered by Combined Heat and Power (CHP) boilers or biomass boilers with supplemental electrical or gas grid connections. These schemes have advanced rapidly in recent years, with much of the research focus targeting lower carbon technologies, improved load prediction and peak demand management. We assess the current status of District Heating Networks (DHNs) in the United Kingdom using published case studies and suggest next steps to improvement. Our findings show that the United Kingdom has good potential for uptake of district energy given the current political climate and government incentives, however significant improvements must be made to further penetrate the heating market.

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“…Another study found that the detail level and assumptions included in a simulation model have a large impact on simulation results of studies on low-temperature heating in existing buildings [36]. It included a case study of an existing single-family house in Denmark.…”

Section: Dimensioning Of Heating Systems In Buildingsmentioning

confidence: 99%

Is It Possible to Supply Norwegian Apartment Blocks with 4th Generation District Heating?

2019

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Direct electricity is widely used for heating purposes in Norway, leading to significant strain on the electricity grid during the heating season. Conversion to 4th generation district heating (4GDH) is an effective method for reducing the need for large investments in the electricity grid, while simultaneously improving the energy efficiency of district heating systems. This article evaluates the possibility of reducing the supply temperature in existing Norwegian apartment blocks by improving the thermal envelope and reducing the temperature levels for the heating system. The analysis is based on simulations in IDA ICE (IDA Indoor Climate and Energy) focusing on whether the reduced supply temperature guarantees thermal comfort in the building, considering the coldest room with a heating setpoint of 22 °C. Based on a recommended minimum acceptable indoor temperature of 19 °C from the Norwegian building regulations (TEK), it should be possible to lower the radiator supply temperature from 80 to 60 °C for apartment blocks newer than 1971. For older buildings, an “intermediate” renovation is necessary to maintain temperatures above 19 °C, however, a “standard” renovation is recommended to ensure thermal comfort and improve the energy efficiency of the building stock.

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Case study of low-temperature heating in an existing single-family house—A test of methods for simulation of heating system temperatures

Cited by 22 publications

References 8 publications

The status of 4th generation district heating: Research and results

The status of 4th generation district heating: Research and results

District Heating Challenges for the UK

Is It Possible to Supply Norwegian Apartment Blocks with 4th Generation District Heating?

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