Identification of environmental and financial cost efficient heating and ventilation services for a typical residential building in Belgium

Debacker, Wim; Allacker, Karen; Spirinckx, Carolin; Geerken, Theo; Troyer, Frank De

doi:10.1016/j.jclepro.2013.05.037

Cited by 31 publications

(25 citation statements)

References 18 publications

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“…However, the related emissions were assumed negligible compared to other life cycle stages [52]. Hence only material losses were considered during the construction stage.…”

Section: Life Cycle Inventorymentioning

confidence: 99%

“…Hence only material losses were considered during the construction stage. An average of 5% material loss was considered [20,52]. For the transport of the materials from the factory to the construction site, two types of lorries have been used based on the M a n u s c r i p t supplier information, lorry >16 ton and lorry 20-28 ton, for load rates of 18 ton and 24 ton respectively.…”

Section: Life Cycle Inventorymentioning

confidence: 99%

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Sustainability assessment of energy saving measures: A multi-criteria approach for residential buildings retrofitting—A case study of the Spanish housing stock

Pombo

Allacker

Rivela

et al. 2016

Energy and Buildings

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158

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Please cite this article as: O. Pombo, K. Allacker, B. Rivela, J. Neila, Sustainability assessment of energy saving measures: a multi-criteria approach for residential buildings retrofittingndashA case study of the Spanish housing stock, Energy and Buildings (2016), http://dx.doi.org/10. 1016/j.enbuild.2016.01.019 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Page 1 of 30A c c e p t e d M a n u s c r i p t The building sector is well known to be one of the key energy consumers worldwide. The renovation of existing buildings provides excellent opportunities for an effective reduction of energy consumption and greenhouse gas emissions but it is essential to identify the optimal strategies. In this paper a multi-criteria methodology is proposed for the comparative analysis of retrofitting solutions. A c c e p t e d M a n u s c r i p t far from being optimal solutions. The required additional investment, which is needed to obtain an overall performance improvement of the envelope compared with the common practice to date, is relatively low (8%) considering the obtained life cycle environmental and financial savings (43% and 45% respectively).

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“…However, the related emissions were assumed negligible compared to other life cycle stages [52]. Hence only material losses were considered during the construction stage.…”

Section: Life Cycle Inventorymentioning

confidence: 99%

Section: Life Cycle Inventorymentioning

confidence: 99%

Sustainability assessment of energy saving measures: A multi-criteria approach for residential buildings retrofitting—A case study of the Spanish housing stock

Pombo

Allacker

Rivela

et al. 2016

Energy and Buildings

Self Cite

158

View full text Add to dashboard Cite

show abstract

“…Al estar todos los resultados monetizados, expresado en una misma unidad (euros), se pueden sumar los resultados, obteniendo una calificación global. El factor de monetización indica el coste del daño al medioambiente y/o a los seres humanos para evitar el potencial de daño o compensar los perjuicios causados (Allacker et al, 2013). De este modo, los costes ambientales pueden compararse/sumarse con los costes financieros, proporcionando una única métrica común.…”

Section: Valoración Monetariaunclassified

“…Los métodos evaluación de costes ambientales y los datos para monetizar el indicador se basan en la revisión bibliográfica de los estudios que utilizan diversos métodos, incluyendo la "disposición a pagar" (willingness to pay) para evitar impactos de eutrofización (Gren, 2008), la modelización del destino e impacto para estimar los efectos en la biodiversidad (ExternE-EcoSense), que se valoran usando los "costes de o Distribución de las emisiones de GEI a lo largo del tiempo, siguiendo la atribución de las emisiones a las distintas fases como en Debacker et al (2013), 30% a la producción y sustitución, 65% a la fase de uso y 5% al fin de vida.…”

Section: Valoración Monetaria Del Potencial De Eutrofización (Ep)unclassified

“…En la fase de rehabilitación, se han considerado únicamente las mermas de materiales generadas durante la instalación. Se ha estimado una media de 5% de mermas en base a la literatura existente (Debacker et al, 2013;Allacker et al, 2013;Rivela, 2012). Los datos de consumo energético y uso de agua durante esta fase no se han tenido en cuenta dada su dificultad de cuantificación.…”

Section: Límites Del Sistemaunclassified

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Análisis multicriterio de la eficiencia de medidas de rehabilitación de viviendas mediante el enfoque de ciclo de vida : propuesta metodológica

Rodilla¹

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Rainwater harvesting systems reduce detergent use

Vargas-Parra

Rovira-Val

Gabarrell

et al. 2018

Int J Life Cycle Assess

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Purpose Due to population growth, urban water demand is expected to increase significantly, as well as the environmental and economic costs required to supply it. Rainwater harvesting (RWH) systems can play a key role in helping cities meet part of their water demand as an alternative to conventional water abstraction and treatment. This paper presents an environmental and economic analysis of RWH systems providing households with water for laundry purposes in a life cycle thinking perspective. Methods Eight urban RWH system scenarios are defined with varying population density and storage tank layout for existing buildings. Storage tank volume required is calculated using Plugrisost software, based on Barcelona rainfall and catchment area, as well as water demand for laundry, since laundry is a fairly constant demand of non-potable water. Life cycle assessment (LCA) and life cycle costing (LCC) methodologies are applied for this study. Environmental impacts are determined using the ReCiPe 2008 (hierarchical, midpoint) and the cumulative energy demand methods. Net present value (NPV), internal rate of return (IRR), and payback (PB) time were used in LCC. Savings from laundry additives due to the difference in water hardness was, for the first time, included in a RWH study. Results and discussion LCA results indicate that the best scenario consists of a 24-household building, with the tank spread on the roof providing up to 96% lower impacts than the rest of scenarios considered. These results are mainly due to the absence of pumping energy consumption and greater rainwater collection per cubic meter of built tank capacity. Furthermore, avoided environmental impacts from the reduction in detergent use are more than 20 times greater than the impacts generated by the RWH system. LCC indicates that RWH system in clusters of buildings or home apartments offer up to 16 times higher profits (higher NPV, higher IRR, and lower PB periods) than individual installations. Conclusions LCA and LCC present better results for high-density scenarios. Overall, avoided environmental and economic impacts from detergent reduction clearly surpass environmental impacts (in all categories except terrestrial acidification) and economic cost of the RWH system in most cases (except two scenarios). Another important finding is that 80% of the savings are achieved by minimizing detergent and fabric softener by using soft rainwater; and the remaining 20% comes from replacing the use of tap water.

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Identification of environmental and financial cost efficient heating and ventilation services for a typical residential building in Belgium

Cited by 31 publications

References 18 publications

Sustainability assessment of energy saving measures: A multi-criteria approach for residential buildings retrofitting—A case study of the Spanish housing stock

Sustainability assessment of energy saving measures: A multi-criteria approach for residential buildings retrofitting—A case study of the Spanish housing stock

Análisis multicriterio de la eficiencia de medidas de rehabilitación de viviendas mediante el enfoque de ciclo de vida : propuesta metodológica

Rainwater harvesting systems reduce detergent use

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