Method to investigate and plan the application of low temperature district heating to existing hydraulic radiator systems in existing buildings
This study presents a method to adapt existing hydronic systems in buildings to take advantage of low temperature district heating (LTDH). Plate radiators connected to double string heating circuits were considered in an optimization procedure, based on supply and return temperatures, to obtain the...
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Elsevier
2016
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| Online Access: | https://eprints.nottingham.ac.uk/35440/ |
| _version_ | 1848795077744263168 |
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| author | Tunzi, Michele Østergaard, Dorte Skaarup Svendsen, Svend Boukhanouf, Rabah Cooper, Edward |
| author_facet | Tunzi, Michele Østergaard, Dorte Skaarup Svendsen, Svend Boukhanouf, Rabah Cooper, Edward |
| author_sort | Tunzi, Michele |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | This study presents a method to adapt existing hydronic systems in buildings to take advantage of low temperature district heating (LTDH). Plate radiators connected to double string heating circuits were considered in an optimization procedure, based on supply and return temperatures, to obtain the required logarithmic mean temperature difference (LMTD) for a low temperature heating system. The results of the analysis are presented as the average reduction of LMTD over the heating season compared to the base case design conditions. Two scenarios were investigated based on the assumption of a likely cost reduction in the end users' energy bills of 1% for each 1 °C reduction of return and average supply and return temperatures. The results showed possible discounts of 14% and 16% respectively, due to more efficient operation of the radiators. These were achieved without any intervention in the thermal envelope or to the heating systems, through simply adjusting the temperatures according to demand and properly controlling the plate radiators with thermostatic radiator valves (TRVs). |
| first_indexed | 2025-11-14T19:26:21Z |
| format | Article |
| id | nottingham-35440 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:26:21Z |
| publishDate | 2016 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-354402020-05-04T18:17:03Z https://eprints.nottingham.ac.uk/35440/ Method to investigate and plan the application of low temperature district heating to existing hydraulic radiator systems in existing buildings Tunzi, Michele Østergaard, Dorte Skaarup Svendsen, Svend Boukhanouf, Rabah Cooper, Edward This study presents a method to adapt existing hydronic systems in buildings to take advantage of low temperature district heating (LTDH). Plate radiators connected to double string heating circuits were considered in an optimization procedure, based on supply and return temperatures, to obtain the required logarithmic mean temperature difference (LMTD) for a low temperature heating system. The results of the analysis are presented as the average reduction of LMTD over the heating season compared to the base case design conditions. Two scenarios were investigated based on the assumption of a likely cost reduction in the end users' energy bills of 1% for each 1 °C reduction of return and average supply and return temperatures. The results showed possible discounts of 14% and 16% respectively, due to more efficient operation of the radiators. These were achieved without any intervention in the thermal envelope or to the heating systems, through simply adjusting the temperatures according to demand and properly controlling the plate radiators with thermostatic radiator valves (TRVs). Elsevier 2016-10-15 Article PeerReviewed Tunzi, Michele, Østergaard, Dorte Skaarup, Svendsen, Svend, Boukhanouf, Rabah and Cooper, Edward (2016) Method to investigate and plan the application of low temperature district heating to existing hydraulic radiator systems in existing buildings. Energy, 113 . pp. 413-421. ISSN 1873-6785 Low temperature district heating; Hydraulic radiators; Modelling; Temperature optimization http://www.sciencedirect.com/science/article/pii/S0360544216309574 doi:10.1016/j.energy.2016.07.033 doi:10.1016/j.energy.2016.07.033 |
| spellingShingle | Low temperature district heating; Hydraulic radiators; Modelling; Temperature optimization Tunzi, Michele Østergaard, Dorte Skaarup Svendsen, Svend Boukhanouf, Rabah Cooper, Edward Method to investigate and plan the application of low temperature district heating to existing hydraulic radiator systems in existing buildings |
| title | Method to investigate and plan the application of low temperature district heating to existing hydraulic radiator systems in existing buildings |
| title_full | Method to investigate and plan the application of low temperature district heating to existing hydraulic radiator systems in existing buildings |
| title_fullStr | Method to investigate and plan the application of low temperature district heating to existing hydraulic radiator systems in existing buildings |
| title_full_unstemmed | Method to investigate and plan the application of low temperature district heating to existing hydraulic radiator systems in existing buildings |
| title_short | Method to investigate and plan the application of low temperature district heating to existing hydraulic radiator systems in existing buildings |
| title_sort | method to investigate and plan the application of low temperature district heating to existing hydraulic radiator systems in existing buildings |
| topic | Low temperature district heating; Hydraulic radiators; Modelling; Temperature optimization |
| url | https://eprints.nottingham.ac.uk/35440/ https://eprints.nottingham.ac.uk/35440/ https://eprints.nottingham.ac.uk/35440/ |