Energetic and economic analysis of decoupled strategy for heating and cooling production with CO2 booster heat pumps for ultra-low temperature district network

The ultra-low temperature district heating and cooling (ULTDHC) systems are among the most interesting solutions for the decarbonisation of heating and cooling sectors. It is a technology where different optimised integrations and operations are still under development. The booster heat pumps (BHPs)...

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Detalhes bibliográficos
Autores: Quirosa Jiménez, Gonzalo, Torres-García, Miguel, Soltero Sánchez, Víctor Manuel, Chacartegui, Ricardo
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2022
País:España
Recursos:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/177431
Acesso em linha:https://hdl.handle.net/11441/177431
https://doi.org/10.1016/j.jobe.2021.103538
Access Level:acceso abierto
Palavra-chave:Ultra-low temperature district heating and cooling
5th generation district heating and cooling
CO2 booster heat pump
Substation
Energy transfer station
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spelling Energetic and economic analysis of decoupled strategy for heating and cooling production with CO2 booster heat pumps for ultra-low temperature district networkQuirosa Jiménez, GonzaloTorres-García, MiguelSoltero Sánchez, Víctor ManuelChacartegui, RicardoUltra-low temperature district heating and cooling5th generation district heating and coolingCO2 booster heat pumpSubstationEnergy transfer stationThe ultra-low temperature district heating and cooling (ULTDHC) systems are among the most interesting solutions for the decarbonisation of heating and cooling sectors. It is a technology where different optimised integrations and operations are still under development. The booster heat pumps (BHPs) or substations associated with this new generation take on a more critical role because the energy supplied by the main network is not enough for covering the user's requirements. Reviewing the literature, it has been seen necessary to make a short and long-term energetic and economic analysis of BHPs operation (considering heating, cooling and SHW requirements) under variable ULTDHC conditions. On this line, this work focuses on the analysis of the operation of two of the most promising BHP types: one with a single CO2 heat pump, type 1, and the other with two CO2 heat pumps with a decoupled operation, type 2. Both BHPs are connected to an ultra-low temperature District Heating and Cooling network with variable parameters throughout the year. The simulation is carried out in a representative building located in Toledo (Spain), in an area with considerable heating and cooling demands throughout the year. The objectives of the work are the following: analyse the daily and annual operations of the two BHPs types, study the effect of outdoor temperature on their optimal operation, point out their main parameter influence and variation and make an economic evaluation of these systems. The BHP type 2 investment is 8.3% more expensive than type 1 but the economic analysis shows an annual saving in heating and cooling operation of the building of 7.7% for BHP type 2 regarding type 1. The size of the BHP, total demand and buildings supplied affects the profitability of the BHP type. For this analysis, type 2 shows more profitable than type 1 when the annual heating demand is greater than a certain threshold.ElsevierIngeniería EnergéticaTEP137: Máquinas y Motores Térmicos2022info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/177431https://doi.org/10.1016/j.jobe.2021.103538reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésJournal of Building Engineering, 45, 103538.https://www.sciencedirect.com/science/article/pii/S2352710221013966info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1774312026-06-17T12:51:07Z
dc.title.none.fl_str_mv Energetic and economic analysis of decoupled strategy for heating and cooling production with CO2 booster heat pumps for ultra-low temperature district network
title Energetic and economic analysis of decoupled strategy for heating and cooling production with CO2 booster heat pumps for ultra-low temperature district network
spellingShingle Energetic and economic analysis of decoupled strategy for heating and cooling production with CO2 booster heat pumps for ultra-low temperature district network
Quirosa Jiménez, Gonzalo
Ultra-low temperature district heating and cooling
5th generation district heating and cooling
CO2 booster heat pump
Substation
Energy transfer station
title_short Energetic and economic analysis of decoupled strategy for heating and cooling production with CO2 booster heat pumps for ultra-low temperature district network
title_full Energetic and economic analysis of decoupled strategy for heating and cooling production with CO2 booster heat pumps for ultra-low temperature district network
title_fullStr Energetic and economic analysis of decoupled strategy for heating and cooling production with CO2 booster heat pumps for ultra-low temperature district network
title_full_unstemmed Energetic and economic analysis of decoupled strategy for heating and cooling production with CO2 booster heat pumps for ultra-low temperature district network
title_sort Energetic and economic analysis of decoupled strategy for heating and cooling production with CO2 booster heat pumps for ultra-low temperature district network
dc.creator.none.fl_str_mv Quirosa Jiménez, Gonzalo
Torres-García, Miguel
Soltero Sánchez, Víctor Manuel
Chacartegui, Ricardo
author Quirosa Jiménez, Gonzalo
author_facet Quirosa Jiménez, Gonzalo
Torres-García, Miguel
Soltero Sánchez, Víctor Manuel
Chacartegui, Ricardo
author_role author
author2 Torres-García, Miguel
Soltero Sánchez, Víctor Manuel
Chacartegui, Ricardo
author2_role author
author
author
dc.contributor.none.fl_str_mv Ingeniería Energética
TEP137: Máquinas y Motores Térmicos
dc.subject.none.fl_str_mv Ultra-low temperature district heating and cooling
5th generation district heating and cooling
CO2 booster heat pump
Substation
Energy transfer station
topic Ultra-low temperature district heating and cooling
5th generation district heating and cooling
CO2 booster heat pump
Substation
Energy transfer station
description The ultra-low temperature district heating and cooling (ULTDHC) systems are among the most interesting solutions for the decarbonisation of heating and cooling sectors. It is a technology where different optimised integrations and operations are still under development. The booster heat pumps (BHPs) or substations associated with this new generation take on a more critical role because the energy supplied by the main network is not enough for covering the user's requirements. Reviewing the literature, it has been seen necessary to make a short and long-term energetic and economic analysis of BHPs operation (considering heating, cooling and SHW requirements) under variable ULTDHC conditions. On this line, this work focuses on the analysis of the operation of two of the most promising BHP types: one with a single CO2 heat pump, type 1, and the other with two CO2 heat pumps with a decoupled operation, type 2. Both BHPs are connected to an ultra-low temperature District Heating and Cooling network with variable parameters throughout the year. The simulation is carried out in a representative building located in Toledo (Spain), in an area with considerable heating and cooling demands throughout the year. The objectives of the work are the following: analyse the daily and annual operations of the two BHPs types, study the effect of outdoor temperature on their optimal operation, point out their main parameter influence and variation and make an economic evaluation of these systems. The BHP type 2 investment is 8.3% more expensive than type 1 but the economic analysis shows an annual saving in heating and cooling operation of the building of 7.7% for BHP type 2 regarding type 1. The size of the BHP, total demand and buildings supplied affects the profitability of the BHP type. For this analysis, type 2 shows more profitable than type 1 when the annual heating demand is greater than a certain threshold.
publishDate 2022
dc.date.none.fl_str_mv 2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/177431
https://doi.org/10.1016/j.jobe.2021.103538
url https://hdl.handle.net/11441/177431
https://doi.org/10.1016/j.jobe.2021.103538
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Journal of Building Engineering, 45, 103538.
https://www.sciencedirect.com/science/article/pii/S2352710221013966
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.198674

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