scholarly journals Temporal analysis of the material flows and embodied greenhouse gas emissions of a neighborhood building stock  

2020 ◽  
Author(s):  
Carine Lausselet ◽  
Johana Paola Forero Urrego ◽  
Eirik Resch ◽  
Helge Brattebø
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Temporal Analysis ◽  
Material Flows ◽  
Building Stock ◽  
Gas Emissions

scholarly journals Investigating Bundled Approaches To Reduce Greenhouse Gas Emissions in the Toronto 2030 District

2021 ◽  
Author(s):  
Patrick Ritsma
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Energy Demand ◽  
Building Energy ◽  
Energy Performance ◽  
Energy Reduction ◽  
Building Stock ◽  
Gas Emissions ◽  
Urban Core ◽  
Energy Models

Building energy models are an effective tool for evaluating energy reduction opportunities in both design phase and post-occupancy scenarios. By merging building energy models with city scale building stock data, it is possible to analyze energy performance at a greater breadth, providing more informed policy decisions and solutions to energy demand asymmetries in urban metropolises. This study examines the energy reduction potential for office buildings in the Toronto 2030 District, by testing individual and bundled energy conservation measures and greenhouse gas reduction strategies using a reference building energy model. When extrapolated across Toronto’s urban core, simulation results determined that standard interventions on the existing office building stock have the potential to reduce greenhouse gas emissions by as much as 91.5%, in line with 2030 District initiatives.

An assessment of greenhouse gas emissions and material flows caused by the Finnish economy using the ENVIMAT model

2011 ◽  
Vol 19 (16) ◽  
pp. 1833-1841 ◽  
Author(s):  
Jyri Seppälä ◽  
Ilmo Mäenpää ◽  
Sirkka Koskela ◽  
Tuomas Mattila ◽  
Ari Nissinen ◽  
...  
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Material Flows ◽  
Gas Emissions

scholarly journals Selection of Favourable Concept of Energy Retrofitting Solution for Social Housing in the Czech Republic Based on Economic Parameters, Greenhouse Gases, and Primary Energy Consumption

2019 ◽  
Vol 11 (22) ◽  
pp. 6482
Author(s):  
Katerina Sojkova ◽  
Martin Volf ◽  
Antonin Lupisek ◽  
Roman Bolliger ◽  
Tomas Vachal
Keyword(s):  
Energy Consumption ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Residential Buildings ◽  
Residential Building ◽  
Primary Energy ◽  
Primary Energy Consumption ◽  
Building Stock ◽  
Gas Emissions ◽  
Residential Building Stock

Energy retrofitting of existing building stock has significant potential for the reduction of energy consumption and greenhouse gas emissions. Roughly half of the CO2 emissions from Czech building stock are estimated to be allocated to residential buildings. Approximately one-third of the Czech residential building stock have already been retrofitted, but retrofitting mostly takes place in large cities due to greater income. A favourable concept for the mass retrofitting of residential building stock, affordable even in low-income regions, was of interest. For a reference building, multi-criteria assessment of numerous retrofitting measures was performed. The calculation involved different building elements, materials, solutions, and energy-efficiency levels in combination with various heating systems. The assessment comprised environmental impact, represented by operational and embodied primary energy consumption and greenhouse gas emissions, and investment and operational costs using the annuity method. Analysis resulted in the identification of favourable retrofitting measures and showed that complex building retrofitting is advantageous from both a cost and an environmental point of view. The environmental burden could be decreased by approximately 10–30% even without photovoltaic installation, and costs per year could be decreased by around 40%.

scholarly journals Review of Constructions and Materials Used in Swedish Residential Buildings during the Post-War Peak of Production

Buildings ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 99
Author(s):  
Björn Berggren ◽  
Maria Wall
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Energy Use ◽  
Lightweight Concrete ◽  
Residential Buildings ◽  
Technical Documentation ◽  
Clay Brick ◽  
Building Stock ◽  
Gas Emissions ◽  
Existing Building

One of the greatest challenges for the world today is the reduction of greenhouse gas emissions. As buildings contribute to almost a quarter of the greenhouse gas emissions worldwide, reducing the energy use of the existing building stock is an important measure for climate change mitigation. In order to increase the renovation pace, there is a need for a comprehensive technical documentation that describes different types of buildings in the existing building stock. The purpose of this study is to analyse and describe existing residential buildings in Sweden. The data are based on published reports from 1967 to 1994 that have not been publicly available in a database for other researchers to study until now. Data from the reports have been transferred to a database and analysed to create a reference for buildings and/or a description of building typology in Sweden. This study found that there is a rather large homogeneity in the existing residential building stock. However, it is not possible to use a single reference building or building technique to cover the majority of the existing buildings. In Sweden, common constructions for exterior walls in multi-dwelling buildings which should be used for further studies are insulated wood infill walls with clay brick façades, lightweight concrete walls with rendered façades and concrete sandwich walls. The most common constructions for one- and two-dwelling buildings are insulated wooden walls with clay brick façades or wooden façades. Furthermore, roof constructions with insulated tie beam and roof constructions where the tie beam is a part of the interior floor slab are frequently used and should be included in further studies.

Circular Economy potential within the building stock - Mapping the embodied greenhouse gas emissions of four Danish examples

2021 ◽  
Vol 33 ◽  
pp. 101845
Author(s):  
Leonora Charlotte Malabi Eberhardt ◽  
Julie Rønholt ◽  
Morten Birkved ◽  
Harpa Birgisdottir
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Circular Economy ◽  
Building Stock ◽  
Gas Emissions

scholarly journals A case study on the impact of fixed input parameter values in the modelling of indoor overheating

2021 ◽  
Vol 2069 (1) ◽  
pp. 012137
Author(s):  
G Petrou ◽  
A Mavrogianni ◽  
P Symonds ◽  
M Davies
Keyword(s):  
Mortality Rate ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Input Parameter ◽  
Building Stock ◽  
Gas Emissions ◽  
U Value ◽  
The Impact ◽  
Related Mortality

Abstract Global efforts to reduce greenhouse gas emissions from buildings while also improving their environmental resilience have intensified. These efforts are often supported by building stock models which can inform policymakers on the impact of policies on energy consumption, greenhouse gas emissions and the indoor environment. The input values of such models are commonly informed by reference tables, which can result in inaccurate specification and incomplete representation of the distribution of possible values. In this modelling case study of a semi-detached dwelling archetype, the influence of using a reference U-value (2.1 W/(m2K)) for solid walls in England on heat-related mortality rate is compared to a probabilistic specification based on empirical evidence (median = 1.7W/(m2K)). Using the theoretical reference U-value generally resulted in a lower indoor overheating risk compared to the use of the empirically derived U-values pre-retrofit, but a larger increase in heat-related mortality rate following internal wall insulation (1.20%) than the use of the empirical median (0.94%, 95 % Confidence Interval = 0.87–0.99 %). This highlights the potentially significant implications of using fixed reference values. Future work will employ this probabilistic framework on multiple influential parameters.

scholarly journals Investigating Bundled Approaches To Reduce Greenhouse Gas Emissions in the Toronto 2030 District

2021 ◽  
Author(s):  
Patrick Ritsma
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Energy Demand ◽  
Building Energy ◽  
Energy Performance ◽  
Energy Reduction ◽  
Building Stock ◽  
Gas Emissions ◽  
Urban Core ◽  
Energy Models

Building energy models are an effective tool for evaluating energy reduction opportunities in both design phase and post-occupancy scenarios. By merging building energy models with city scale building stock data, it is possible to analyze energy performance at a greater breadth, providing more informed policy decisions and solutions to energy demand asymmetries in urban metropolises. This study examines the energy reduction potential for office buildings in the Toronto 2030 District, by testing individual and bundled energy conservation measures and greenhouse gas reduction strategies using a reference building energy model. When extrapolated across Toronto’s urban core, simulation results determined that standard interventions on the existing office building stock have the potential to reduce greenhouse gas emissions by as much as 91.5%, in line with 2030 District initiatives.

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