Evaluation of High-Temperature Heat Pumps’ Potential to Replace Gas Boilers in Industrial Buildings

The study proves that high-temperature heat pumps with CO2 of air to water type, in monobloc construction, can replace the gas boilers for heating and DHW, in an industrial building. The most efficient configuration is proposed with 3 heat pumps of 250 kW nominal thermal power is capable to provide...

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Main Authors: Talaba Ovidiu, Serban Alexandru, Hiris Paul Daniel, Balan Mugur Ciprian
Format: Article
Language:English
Published: EDP Sciences 2025-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/08/e3sconf_eenviro2024_01012.pdf
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author Talaba Ovidiu
Serban Alexandru
Hiris Paul Daniel
Balan Mugur Ciprian
author_facet Talaba Ovidiu
Serban Alexandru
Hiris Paul Daniel
Balan Mugur Ciprian
author_sort Talaba Ovidiu
collection DOAJ
description The study proves that high-temperature heat pumps with CO2 of air to water type, in monobloc construction, can replace the gas boilers for heating and DHW, in an industrial building. The most efficient configuration is proposed with 3 heat pumps of 250 kW nominal thermal power is capable to provide 81 % of the annual thermal energy and 3 electric boilers of 720 kW total thermal power to produce the remaining 19 % of the annual thermal energy. The COP of the heat pumps decreases if the number of heat pumps increases. A single heat pump will achieve an annual COP of 2.66 without the PV system while in the proposed configuration with 3 heat pumps, the annual COP will be 2.37 without the PV system. The payback period for the configuration with 3 heat pumps is 3.10 years without the PV system and 3.26 years with the PV system.
format Article
id doaj-art-2334f5a546b94e3d8fadf82329f486f4
institution Kabale University
issn 2267-1242
language English
publishDate 2025-01-01
publisher EDP Sciences
record_format Article
series E3S Web of Conferences
spelling doaj-art-2334f5a546b94e3d8fadf82329f486f42025-02-05T10:49:33ZengEDP SciencesE3S Web of Conferences2267-12422025-01-016080101210.1051/e3sconf/202560801012e3sconf_eenviro2024_01012Evaluation of High-Temperature Heat Pumps’ Potential to Replace Gas Boilers in Industrial BuildingsTalaba Ovidiu0Serban Alexandru1Hiris Paul Daniel2Balan Mugur Ciprian3Politehnica Bucharest National University of Science and TechnologyPolitehnica Bucharest National University of Science and TechnologyTechnical University of Cluj-NapocaTechnical University of Cluj-NapocaThe study proves that high-temperature heat pumps with CO2 of air to water type, in monobloc construction, can replace the gas boilers for heating and DHW, in an industrial building. The most efficient configuration is proposed with 3 heat pumps of 250 kW nominal thermal power is capable to provide 81 % of the annual thermal energy and 3 electric boilers of 720 kW total thermal power to produce the remaining 19 % of the annual thermal energy. The COP of the heat pumps decreases if the number of heat pumps increases. A single heat pump will achieve an annual COP of 2.66 without the PV system while in the proposed configuration with 3 heat pumps, the annual COP will be 2.37 without the PV system. The payback period for the configuration with 3 heat pumps is 3.10 years without the PV system and 3.26 years with the PV system.https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/08/e3sconf_eenviro2024_01012.pdf
spellingShingle Talaba Ovidiu
Serban Alexandru
Hiris Paul Daniel
Balan Mugur Ciprian
Evaluation of High-Temperature Heat Pumps’ Potential to Replace Gas Boilers in Industrial Buildings
E3S Web of Conferences
title Evaluation of High-Temperature Heat Pumps’ Potential to Replace Gas Boilers in Industrial Buildings
title_full Evaluation of High-Temperature Heat Pumps’ Potential to Replace Gas Boilers in Industrial Buildings
title_fullStr Evaluation of High-Temperature Heat Pumps’ Potential to Replace Gas Boilers in Industrial Buildings
title_full_unstemmed Evaluation of High-Temperature Heat Pumps’ Potential to Replace Gas Boilers in Industrial Buildings
title_short Evaluation of High-Temperature Heat Pumps’ Potential to Replace Gas Boilers in Industrial Buildings
title_sort evaluation of high temperature heat pumps potential to replace gas boilers in industrial buildings
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/08/e3sconf_eenviro2024_01012.pdf
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AT serbanalexandru evaluationofhightemperatureheatpumpspotentialtoreplacegasboilersinindustrialbuildings
AT hirispauldaniel evaluationofhightemperatureheatpumpspotentialtoreplacegasboilersinindustrialbuildings
AT balanmugurciprian evaluationofhightemperatureheatpumpspotentialtoreplacegasboilersinindustrialbuildings