A building sector related procedure to assess the relevance of the usage phase

Paulsen, Jacob; Borg, Mathias

doi:10.1007/bf02978459

Cited by 10 publications

(4 citation statements)

References 3 publications

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“…Over such a long period of time, the energy basket and even the climate are expected to change. This fact alone raises some concerns about the applicability of the standard LCA method for buildings [136][137][138][139][140]. The same observation was done by Pehnt [141] for renewable energy technologies.…”

Section: Unsteady Environment Indicatorsmentioning

confidence: 93%

Sustainable Buildings: An Ever Evolving Target

2011

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Environmental considerations have called for new developments in building technologies to bridge the gap between this need for lower impacts on the environment and ever increasing comfort. These developments were generally directed at the reduction of the energy consumption during operations. While this was indeed a mandatory first step, complete environmental life cycle analysis raises new questions. For instance, for a typical low thermal energy consumption building, the embodied energy of construction materials now becomes an important component of the environmental footprint. In addition, the usual practice in life cycle analysis now appears to call for some adaptation-due to variable parameters in time-to be implemented successfully in building analysis. These issues bring new challenges to reach the goal of integrated design, construction, commissioning, operation, maintenance, and decommissioning of sustainable buildings.

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Section: Unsteady Environment Indicatorsmentioning

confidence: 93%

Sustainable Buildings: An Ever Evolving Target

2011

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“…Over such a long period of time, the energy basket and even the climate are expected to change. This raises some concerns about the applicability of the standard life cycle analysis method for buildings [37][38][39][40][41].…”

Section: Other Factorsmentioning

confidence: 99%

Energy Costs of Energy Savings in Buildings: A Review

Dutil

Rousse

2012

Sustainability

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Abstract:It is often claimed that the cheapest energy is the one you do not need to produce. Nevertheless, this claim could somehow be unsubstantiated. In this article, the authors try to shed some light on this issue by using the concept of energy return on investment (EROI) as a yardstick. This choice brings semantic issues because in this paper the EROI is used in a different context than that of energy production. Indeed, while watts and negawatts share the same physical unit, they are not the same object, which brings some ambiguities in the interpretation of EROI. These are cleared by a refined definition of EROI and an adapted nomenclature. This review studies the research in the energy efficiency of building operation, which is one of the most investigated topics in energy efficiency. This study focuses on the impact of insulation and high efficiency windows as means to exemplify the concepts that are introduced. These results were normalized for climate, life time of the building, and construction material. In many cases, energy efficiency measures imply a very high EROI. Nevertheless, in some circumstances, this is not the case and it might be more profitable to produce the required energy than to try to save it.

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“…Building structures have actually a long living period (50-100 years). Over such a long period of time, the energy basket and even the climate are expected to change which raises concerns about the applicability of standard LCA method [48][49][50]. Kellenberger and Althaus [51] also deplored the lack of reliable data on life span of building components .…”

Section: Sensitivity Analysismentioning

confidence: 99%

Lowering the global warming impact of bridge rehabilitations by using Ultra High Performance Fibre Reinforced Concretes

Habert

Denarié

Šajna

et al. 2013

Cement and Concrete Composites

166

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a b s t r a c tUltra-High Performance Fibre Reinforced Concrete (UHPFRC) is charact erized by a unique combination of extremely low permeability, high strength and deformability. Extensive R&D works and applications over the last 10 years have demonstrated that cast on site UHPFRC is a fast, efficient and price competitive method for the repair/re habilitation of existing structures. More recently, an original concept of ECO-UHPFRC with a high dosage of mineral addition, a low clinker content, and a majority of local components has been applied successfully for the reh abilitation of a bridge in Slovenia. The objective of the present study is to evaluate the global warming impact of bridge rehabilitations with different types of UHPFRC and to compare them to more standard solutions, both on the basis of the bridge rehabilitation performed in Slovenia. Life Cycle Assessment (LCA) methodology is used. The analysis shows that rehabilitations with UHPFRC, and even more ECO-UHPFRC, have a lower impact than traditional methods over the life cycle.

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A building sector related procedure to assess the relevance of the usage phase

Cited by 10 publications

References 3 publications

Sustainable Buildings: An Ever Evolving Target

Sustainable Buildings: An Ever Evolving Target

Energy Costs of Energy Savings in Buildings: A Review

Lowering the global warming impact of bridge rehabilitations by using Ultra High Performance Fibre Reinforced Concretes

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