A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Life cycle assessment and life cycle costing of container-based single-family housing in Canada: A case study
https://orcid.org/0000-0002-3706-5057
Abstract This research presents an early-design analysis of single-family housing located in Calgary, Canada; and combines energy analysis, life cycle assessment (LCA), and life-cycle costing (LCC), to investigate the life cycle impacts associated with repurposing upcycled containers into modular housing. The study considers four case studies; container and lightwood designed to code specifications, both serving as base models and two improved models of container and lightwood, designed by incorporating energy efficiency measures and passive solar design standards. The life cycle assessment results for the code cases clearly show that majority of the life cycle environmental impacts (95%) occur at the use and operation phase, followed by the pre-use contributing 4%, and less than 1% at the end of life. For the improved cases, results show similar findings as the use and operation phase contributes approximately 85% impact, however, a higher pre-use impact of 12% is reported. Over the 50 years lifespan, the comparative life cycle impacts show only 3% difference when comparing container to lightwood cases. Sensitivity analysis show that utilizing Scenario 100:0 (container code-cut-of-method) in housing can result in a substantial amount of avoided impact about 46 (t CO2 eq) and (538 GJ) 149,444 kWh energy savings as compared to Scenario 0:100 (improved container – end of life recycling). Approximately 10% life cycle cost reduction is realized with the improved cases compared to code cases. This study proves the potentials for repurposing container for long-term usage as a building system, thereby meeting affordable housing needs with less environmental impacts.
Highlights Operational energy use greatly influences the life cycle environmental impacts of buildings. Envelope improvements leads to increased pre-use impacts by 12%, and higher embodied energy intensity of container model. Higher amount of waste generations (47%) and increased environmental impacts witnessed with lightwood house. Upcycling of container results in 46 t of CO2 eq. as avoided environmental impacts. Maximum life cycle cost benefits is achieved through energy efficient measures.
Life cycle assessment and life cycle costing of container-based single-family housing in Canada: A case study
https://orcid.org/0000-0002-3706-5057
Abstract This research presents an early-design analysis of single-family housing located in Calgary, Canada; and combines energy analysis, life cycle assessment (LCA), and life-cycle costing (LCC), to investigate the life cycle impacts associated with repurposing upcycled containers into modular housing. The study considers four case studies; container and lightwood designed to code specifications, both serving as base models and two improved models of container and lightwood, designed by incorporating energy efficiency measures and passive solar design standards. The life cycle assessment results for the code cases clearly show that majority of the life cycle environmental impacts (95%) occur at the use and operation phase, followed by the pre-use contributing 4%, and less than 1% at the end of life. For the improved cases, results show similar findings as the use and operation phase contributes approximately 85% impact, however, a higher pre-use impact of 12% is reported. Over the 50 years lifespan, the comparative life cycle impacts show only 3% difference when comparing container to lightwood cases. Sensitivity analysis show that utilizing Scenario 100:0 (container code-cut-of-method) in housing can result in a substantial amount of avoided impact about 46 (t CO2 eq) and (538 GJ) 149,444 kWh energy savings as compared to Scenario 0:100 (improved container – end of life recycling). Approximately 10% life cycle cost reduction is realized with the improved cases compared to code cases. This study proves the potentials for repurposing container for long-term usage as a building system, thereby meeting affordable housing needs with less environmental impacts.
Highlights Operational energy use greatly influences the life cycle environmental impacts of buildings. Envelope improvements leads to increased pre-use impacts by 12%, and higher embodied energy intensity of container model. Higher amount of waste generations (47%) and increased environmental impacts witnessed with lightwood house. Upcycling of container results in 46 t of CO2 eq. as avoided environmental impacts. Maximum life cycle cost benefits is achieved through energy efficient measures.
Life cycle assessment and life cycle costing of container-based single-family housing in Canada: A case study
https://orcid.org/0000-0002-3706-5057
Abstract This research presents an early-design analysis of single-family housing located in Calgary, Canada; and combines energy analysis, life cycle assessment (LCA), and life-cycle costing (LCC), to investigate the life cycle impacts associated with repurposing upcycled containers into modular housing. The study considers four case studies; container and lightwood designed to code specifications, both serving as base models and two improved models of container and lightwood, designed by incorporating energy efficiency measures and passive solar design standards. The life cycle assessment results for the code cases clearly show that majority of the life cycle environmental impacts (95%) occur at the use and operation phase, followed by the pre-use contributing 4%, and less than 1% at the end of life. For the improved cases, results show similar findings as the use and operation phase contributes approximately 85% impact, however, a higher pre-use impact of 12% is reported. Over the 50 years lifespan, the comparative life cycle impacts show only 3% difference when comparing container to lightwood cases. Sensitivity analysis show that utilizing Scenario 100:0 (container code-cut-of-method) in housing can result in a substantial amount of avoided impact about 46 (t CO2 eq) and (538 GJ) 149,444 kWh energy savings as compared to Scenario 0:100 (improved container – end of life recycling). Approximately 10% life cycle cost reduction is realized with the improved cases compared to code cases. This study proves the potentials for repurposing container for long-term usage as a building system, thereby meeting affordable housing needs with less environmental impacts.
Highlights Operational energy use greatly influences the life cycle environmental impacts of buildings. Envelope improvements leads to increased pre-use impacts by 12%, and higher embodied energy intensity of container model. Higher amount of waste generations (47%) and increased environmental impacts witnessed with lightwood house. Upcycling of container results in 46 t of CO2 eq. as avoided environmental impacts. Maximum life cycle cost benefits is achieved through energy efficient measures.
Life cycle assessment and life cycle costing of container-based single-family housing in Canada: A case study
Dara, Chinyere (author) / Hachem-Vermette, Caroline (author) / Assefa, Getachew (author)
Building and Environment ; 163
2019-08-06
Article (Journal)
Electronic Resource
English
| British Library Conference Proceedings | 1995
| British Library Online Contents | 1993
Emerald Group Publishing | 2004
Economic Indicators for Life Cycle Sustainability Assessment: Going beyond Life Cycle Costing
| DOAJ | 2022
| Emerald Group Publishing | 1989