Energy-efficient Office Refurbishment

Burton, Simon

doi:10.4324/9781315074344

Cited by 16 publications

(11 citation statements)

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“…The annual energy consumption in office buildings varies between 100 and 1,000 kWh/m 2 depending on geographic location; type and use of office equipment; operational schedules; type of envelope; use of heating, ventilation, and air conditioning; and lighting system and so on (Burton and Sala 2001). In China, it has the largest share and also consumes the largest electricity in the building (Cai et al 2009).…”

Section: Introductionmentioning

confidence: 98%

Life cycle energy consumption and CO2 emission of an office building in China

Yuan

Zhang

et al. 2011

Int J Life Cycle Assess

156

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Purpose Building is one of the main factors of energy use and greenhouse gas emissions. Reducing energy consumption and carbon dioxide (CO 2 ) emission from building is urgent for environmental protection and sustainable development. The objective of this study is to develop a life cycle assessment (LCA) model for an office building in China to assess its energy consumption and CO 2 emission, determine the whole life cycle phases, and the significant environmental aspects that contribute most to the impact. Methods A process-based LCA has been used to identify and quantify the energy consumption and CO 2 emission of the office building. The LCA is conducted in accordance with the Environmental Protection Agency, The Society of Environmental Toxicology and Chemistry, and the International Organization for Standardization standards for life cycle assessments. The entire life cycle including building materials production, construction, operation, and demolition of the building is studied. A service life of 50 years is assumed and the major construction materials such as concrete, cement, brick, steel, timber, glass, and plastic are selected for the building. Results and discussionThe results show that building operation uses the largest share of energy and contributes most to CO 2 emission. The cooling and heating system in building operation strongly influence the energy consumption and CO 2 emission of the building. In addition, the large quantity use of concrete and steel in materials production, and the treatment of end-of-life building materials are also the important aspects impacting the environmental performance of the building. Based on the results of the study, some environmental improvements aiming at reducing energy consumption and CO 2 emission throughout the life cycle of the building are provided.Conclusions This study provides an LCA of the energy consumption and CO 2 emission of a typical office building in China. It determines the whole life cycle phases that contribute most to the impact and defines the significant environmental aspects of the building. This study also shows the importance of using a life cycle perspective when evaluating energy consumption and CO 2 emission of building and also lays the groundwork for LCA studying of other office buildings in China.

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Section: Introductionmentioning

confidence: 98%

Life cycle energy consumption and CO2 emission of an office building in China

Yuan

Zhang

et al. 2011

Int J Life Cycle Assess

156

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“…Within the commercial sector, office buildings and retail have one of the highest levels of energy consumption and CO 2 emissions when compared with energy consumption in other buildings sectors [9]. Perez-Lombard et al [10] obtained similar results concluding that office and retail are the most energy intensive typologies typically accounting for over 50% of the total energy consumption for non-domestic buildings.…”

Section: Introductionmentioning

confidence: 73%

Assessment of energy and environmental performance of office building models: A case study

Krstić‐Furundžić

Kosić

2016

Energy and Buildings

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“…In addition to this, there seems to have been very little engagement with building users despite the fact that the main purpose of an office building is to provide a healthy, comfortable and productive environment for its occupants [46]. If this problem is contemplated over in a more comprehensive context and occupants, as the ultimate users of the space, are collectively consulted both prior and during the project, many problems can be prevented and those few which may still persist, can be addressed and overcome in a collective manner through collaborative working processes.…”

Section: Conclusion Limitations and Further Researchmentioning

confidence: 99%

Façade refurbishment of existing office buildings: Do conventional energy-saving interventions always work?

Pomponi

Farr

Piroozfar

et al. 2015

Journal of Building Engineering

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Offices account for 40% of energy use in construction sector. Office building stock is already under-performing and dilapidating at a fast pace. With the current rate of replacing old building stock in the UK, it is expected that at least 60% of what was built before 1985 still exists in 2050. Therefore, refurbishment, with an aim to improve performance of buildings, seems to remain as the most feasible and arguably most cost efficient way forward. Precedent studies in this area are not few and far between.However, some recommendations and interventions seems to have been taken for granted and thought to be globally applicable almost everywhere. This study chooses a recently refurbished office building to challenge this common belief. It was shown that, from the carbon point of view, benefits as a result of interventions were marginal. It was found that a full pre-refurbishment survey, measures aimed at reducing the performance gap between intended and actual figures, and study of occupancy patterns would probably help in this respect. The study results also showed that study of contextual conditions i.e. careful considerations with regards to building orientation, topography, site constraints, and exposure to solar gains will help achieve better results.Finally it was envisaged that better user engagement, communication and using few other measures to enhance user satisfaction will help guarantee some other aspects pertaining to performance than its mere energy consumption or carbon footprint.

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Energy-efficient Office Refurbishment

Cited by 16 publications

References 0 publications

Life cycle energy consumption and CO2 emission of an office building in China

Life cycle energy consumption and CO2 emission of an office building in China

Assessment of energy and environmental performance of office building models: A case study

Façade refurbishment of existing office buildings: Do conventional energy-saving interventions always work?

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