Exergetic model of a small-scale, biomass-based CCHP/HP system for historic building structures

Biomass-based, small-scale Combined Cooling, Heating and Power (CCHP) systems can increase the energy autonomy of building complexes while reducing their Greenhouse Gases (GHG) emissions. In combination with air-to-water Heat Pumps (HP), highly efficient energy systems can be designed, which allow f...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Moritz Wegener, Antonio Isalgue, Anders Malmquist, Andrew Martin, Massimo Santarelli, Pol Arranz, Oscar Camarra
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Exergy CCHP HP Energy systems Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/947d2d5a0a0a46be834825573cc38f6c
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:947d2d5a0a0a46be834825573cc38f6c
record_format	dspace
spelling	oai:doaj.org-article:947d2d5a0a0a46be834825573cc38f6c2021-12-04T04:35:48ZExergetic model of a small-scale, biomass-based CCHP/HP system for historic building structures2590-174510.1016/j.ecmx.2021.100148https://doaj.org/article/947d2d5a0a0a46be834825573cc38f6c2021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2590174521000738https://doaj.org/toc/2590-1745Biomass-based, small-scale Combined Cooling, Heating and Power (CCHP) systems can increase the energy autonomy of building complexes while reducing their Greenhouse Gases (GHG) emissions. In combination with air-to-water Heat Pumps (HP), highly efficient energy systems can be designed, which allow for high flexibility in serving thermal and electric demands. This study presents an exergy evaluation of such a small-scale CCHP/HP system using a dynamic modelling approach based on gasification of various types of woody biomass. The transient model takes into account the effects of the biomass chemical composition as well as of ambient temperatures on the exergy performance of all key components for various CCHP system sizes supporting an HP system. The model has been applied in a case study for a historic building complex, where the CCHP sub-system would support an HP-subsystem allowing for downsizing the latter. The results show that smaller CCHP systems operate with higher exergy efficiency, because for larger systems the heat transfer from the engine and the operation of the absorption chiller are less exergy efficient. The electric load-following CCHP subsystem reaches exergy efficiencies of up to 13.3%, indicating huge improvement potential for system and sub-system design. It was also found that the biomass composition heavily influences the exergy efficiency of the gasifier and in turn changes the exergy efficiency of the syngas engine and the entire CCHP sub-system.Moritz WegenerAntonio IsalgueAnders MalmquistAndrew MartinMassimo SantarelliPol ArranzOscar CamarraElsevierarticleExergyCCHPHPEnergy systemsEngineering (General). Civil engineering (General)TA1-2040ENEnergy Conversion and Management: X, Vol 12, Iss , Pp 100148- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Exergy CCHP HP Energy systems Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Exergy CCHP HP Energy systems Engineering (General). Civil engineering (General) TA1-2040 Moritz Wegener Antonio Isalgue Anders Malmquist Andrew Martin Massimo Santarelli Pol Arranz Oscar Camarra Exergetic model of a small-scale, biomass-based CCHP/HP system for historic building structures
description	Biomass-based, small-scale Combined Cooling, Heating and Power (CCHP) systems can increase the energy autonomy of building complexes while reducing their Greenhouse Gases (GHG) emissions. In combination with air-to-water Heat Pumps (HP), highly efficient energy systems can be designed, which allow for high flexibility in serving thermal and electric demands. This study presents an exergy evaluation of such a small-scale CCHP/HP system using a dynamic modelling approach based on gasification of various types of woody biomass. The transient model takes into account the effects of the biomass chemical composition as well as of ambient temperatures on the exergy performance of all key components for various CCHP system sizes supporting an HP system. The model has been applied in a case study for a historic building complex, where the CCHP sub-system would support an HP-subsystem allowing for downsizing the latter. The results show that smaller CCHP systems operate with higher exergy efficiency, because for larger systems the heat transfer from the engine and the operation of the absorption chiller are less exergy efficient. The electric load-following CCHP subsystem reaches exergy efficiencies of up to 13.3%, indicating huge improvement potential for system and sub-system design. It was also found that the biomass composition heavily influences the exergy efficiency of the gasifier and in turn changes the exergy efficiency of the syngas engine and the entire CCHP sub-system.
format	article
author	Moritz Wegener Antonio Isalgue Anders Malmquist Andrew Martin Massimo Santarelli Pol Arranz Oscar Camarra
author_facet	Moritz Wegener Antonio Isalgue Anders Malmquist Andrew Martin Massimo Santarelli Pol Arranz Oscar Camarra
author_sort	Moritz Wegener
title	Exergetic model of a small-scale, biomass-based CCHP/HP system for historic building structures
title_short	Exergetic model of a small-scale, biomass-based CCHP/HP system for historic building structures
title_full	Exergetic model of a small-scale, biomass-based CCHP/HP system for historic building structures
title_fullStr	Exergetic model of a small-scale, biomass-based CCHP/HP system for historic building structures
title_full_unstemmed	Exergetic model of a small-scale, biomass-based CCHP/HP system for historic building structures
title_sort	exergetic model of a small-scale, biomass-based cchp/hp system for historic building structures
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/947d2d5a0a0a46be834825573cc38f6c
work_keys_str_mv	AT moritzwegener exergeticmodelofasmallscalebiomassbasedcchphpsystemforhistoricbuildingstructures AT antonioisalgue exergeticmodelofasmallscalebiomassbasedcchphpsystemforhistoricbuildingstructures AT andersmalmquist exergeticmodelofasmallscalebiomassbasedcchphpsystemforhistoricbuildingstructures AT andrewmartin exergeticmodelofasmallscalebiomassbasedcchphpsystemforhistoricbuildingstructures AT massimosantarelli exergeticmodelofasmallscalebiomassbasedcchphpsystemforhistoricbuildingstructures AT polarranz exergeticmodelofasmallscalebiomassbasedcchphpsystemforhistoricbuildingstructures AT oscarcamarra exergeticmodelofasmallscalebiomassbasedcchphpsystemforhistoricbuildingstructures
_version_	1718372928137986048

Exergetic model of a small-scale, biomass-based CCHP/HP system for historic building structures

Ejemplares similares