Influence of apartments’ modernization on the temperatures of heating system in the building

When modernizing apartment buildings, heating appliances are replaced or old ones are left, high thermal temperatures are usually maintained, thus limiting the increase in the DH system’s efficiency. In the article, in order to evaluate the impact of the reduced thermal temperature of the building o...

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Autores principales:	Giedrius Šiupšinskas, Juozas Bielskus, Artur Rogoža
Formato:	article
Lenguaje:	EN LT
Publicado:	Vilnius Gediminas Technical University 2021
Materias:	district heating modernization of building reducing of temperature of building heating Technology T Science Q
Acceso en línea:	https://doaj.org/article/feee36fbadd04e449e3e456cc0167cc6
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spelling	oai:doaj.org-article:feee36fbadd04e449e3e456cc0167cc62021-11-23T14:40:53ZInfluence of apartments’ modernization on the temperatures of heating system in the building2029-23412029-225210.3846/mla.2021.15275https://doaj.org/article/feee36fbadd04e449e3e456cc0167cc62021-11-01T00:00:00Zhttps://journals.vgtu.lt/index.php/MLA/article/view/15275https://doaj.org/toc/2029-2341https://doaj.org/toc/2029-2252When modernizing apartment buildings, heating appliances are replaced or old ones are left, high thermal temperatures are usually maintained, thus limiting the increase in the DH system’s efficiency. In the article, in order to evaluate the impact of the reduced thermal temperature of the building on space heating when the radiator area remains constant, 3 alternatives have been analyzed. They include cases when after the building modernization old heating appliances are left, but the temperature of the heat carrier is reduced up to 60/40/20 °C in one case or even up to 45/25/20 in another alternative. There has also been examined the possibility of reducing the heat carrier temperature of the heating system without modernization of the building. An hourly data analysis of the heating system model for two typical months of the heating season has been performed. The analysis shows that after the modernization of the building, when heating device areas are left the same, the existing heating temperature can be reduced to 60/40/2020 °C. Article in Lithuanian. Daugiabučio modernizavimo įtaka pastato šildymo sistemos temperatūroms Santrauka Modernizuojant daugiabučius pastatus, keičiant šildymo prietaisus ar paliekant senus, dažniausiai išlaikomos aukštos šilumnešio temperatūros, kurios apriboja centralizuotos šilumos tiekimo sistemos efektyvumo didinimą. Straipsnyje, siekiant įvertinti pastate sumažėjusios šilumnešio temperatūros įtaką patalpų šildymui, kai radiatorių plotas išlieka pastovus, buvo analizuojamos 3 alternatyvos: kai modernizavus pastatą paliekami seni šildymo prietaisai, bet žeminama šilumnešio temperatūra vienu atveju iki 60/40/20 arba kitu net iki 45/25/20. Išnagrinėta galimybė žeminti šildymo sistemos šilumnešio temperatūrą be pastato modernizavimo. Atlikta dviejų būdingų šildymo sezono mėnesių šildymo sistemos modelio valandinė duomenų analizė parodė, kad po modernizavimo pastate paliekant esamą šildymo prietaisų plotą, temperatūrą galima žeminti iki 60/40/20. Reikšminiai žodžiai: centralizuotas šilumos tiekimas (CŠT), pastato modernizavimas, šildymo sistemos temperatūros žeminimas.Giedrius ŠiupšinskasJuozas BielskusArtur RogožaVilnius Gediminas Technical Universityarticledistrict heatingmodernization of buildingreducing of temperature of building heatingTechnologyTScienceQENLTMokslas: Lietuvos Ateitis, Vol 13 (2021)
institution	DOAJ
collection	DOAJ
language	EN LT
topic	district heating modernization of building reducing of temperature of building heating Technology T Science Q
spellingShingle	district heating modernization of building reducing of temperature of building heating Technology T Science Q Giedrius Šiupšinskas Juozas Bielskus Artur Rogoža Influence of apartments’ modernization on the temperatures of heating system in the building
description	When modernizing apartment buildings, heating appliances are replaced or old ones are left, high thermal temperatures are usually maintained, thus limiting the increase in the DH system’s efficiency. In the article, in order to evaluate the impact of the reduced thermal temperature of the building on space heating when the radiator area remains constant, 3 alternatives have been analyzed. They include cases when after the building modernization old heating appliances are left, but the temperature of the heat carrier is reduced up to 60/40/20 °C in one case or even up to 45/25/20 in another alternative. There has also been examined the possibility of reducing the heat carrier temperature of the heating system without modernization of the building. An hourly data analysis of the heating system model for two typical months of the heating season has been performed. The analysis shows that after the modernization of the building, when heating device areas are left the same, the existing heating temperature can be reduced to 60/40/2020 °C. Article in Lithuanian. Daugiabučio modernizavimo įtaka pastato šildymo sistemos temperatūroms Santrauka Modernizuojant daugiabučius pastatus, keičiant šildymo prietaisus ar paliekant senus, dažniausiai išlaikomos aukštos šilumnešio temperatūros, kurios apriboja centralizuotos šilumos tiekimo sistemos efektyvumo didinimą. Straipsnyje, siekiant įvertinti pastate sumažėjusios šilumnešio temperatūros įtaką patalpų šildymui, kai radiatorių plotas išlieka pastovus, buvo analizuojamos 3 alternatyvos: kai modernizavus pastatą paliekami seni šildymo prietaisai, bet žeminama šilumnešio temperatūra vienu atveju iki 60/40/20 arba kitu net iki 45/25/20. Išnagrinėta galimybė žeminti šildymo sistemos šilumnešio temperatūrą be pastato modernizavimo. Atlikta dviejų būdingų šildymo sezono mėnesių šildymo sistemos modelio valandinė duomenų analizė parodė, kad po modernizavimo pastate paliekant esamą šildymo prietaisų plotą, temperatūrą galima žeminti iki 60/40/20. Reikšminiai žodžiai: centralizuotas šilumos tiekimas (CŠT), pastato modernizavimas, šildymo sistemos temperatūros žeminimas.
format	article
author	Giedrius Šiupšinskas Juozas Bielskus Artur Rogoža
author_facet	Giedrius Šiupšinskas Juozas Bielskus Artur Rogoža
author_sort	Giedrius Šiupšinskas
title	Influence of apartments’ modernization on the temperatures of heating system in the building
title_short	Influence of apartments’ modernization on the temperatures of heating system in the building
title_full	Influence of apartments’ modernization on the temperatures of heating system in the building
title_fullStr	Influence of apartments’ modernization on the temperatures of heating system in the building
title_full_unstemmed	Influence of apartments’ modernization on the temperatures of heating system in the building
title_sort	influence of apartments’ modernization on the temperatures of heating system in the building
publisher	Vilnius Gediminas Technical University
publishDate	2021
url	https://doaj.org/article/feee36fbadd04e449e3e456cc0167cc6
work_keys_str_mv	AT giedriussiupsinskas influenceofapartmentsmodernizationonthetemperaturesofheatingsysteminthebuilding AT juozasbielskus influenceofapartmentsmodernizationonthetemperaturesofheatingsysteminthebuilding AT arturrogoza influenceofapartmentsmodernizationonthetemperaturesofheatingsysteminthebuilding
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Influence of apartments’ modernization on the temperatures of heating system in the building

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