INTRODUCTION The Minnesota Sustainable Building Guidelines is a progressive sustainability program for state funded buildings which serves as a model for sustainability in Minnesota buildings.The program was created b...INTRODUCTION The Minnesota Sustainable Building Guidelines is a progressive sustainability program for state funded buildings which serves as a model for sustainability in Minnesota buildings.The program was created by the State of Minnesota in 2001 and developed by a team led by the Center for Sustainable Building Research(CSBR)at the University of Minnesota.Unlike other green building programs,it focuses on measured performance improvements,using a list of required metrics instead of a menu of potential options.The program is structured to provide a feedback loop to the building design,construction and operations industry in the state.Elements of the program are used through all phases of the development of state-funded buildings in Minnesota from pre-design through design,and construction and for ten years of operations.It is continually updated and improved in collaboration with state agencies and industry stakeholders and could serve as a model for localized green building programs.展开更多
This case study investigated employees’work performance and satisfaction in relation to sustainable design criteria used to design the interior of their office building.The case study is part of ongoing research to c...This case study investigated employees’work performance and satisfaction in relation to sustainable design criteria used to design the interior of their office building.The case study is part of ongoing research to continue testing a questionnaire for validity and reliability,which will contribute to the development of sustainable design/occupant scales relating to satisfaction and performance.A self-administered,Internet-based questionnaire was developed that reflects a set of recognized sustainable design guidelines.It was submitted to over 200 employees of a business housed in a newly built office building in a mid-western city.Generally positive results were found for employees’satisfaction with the new facility(site,building,and interior)and their performance as related to sustainable design criteria in the new facility.Dissatisfaction with acoustic and privacy conditions were found for employees of open-office workstation types(cubicles).Exploration of prior workstation types showed that moving from private offices to cubicles decreased employees’satisfaction with new cubicles compared to moving from cubicles in a prior building to cubicles in the new building,though dissatisfaction with these two criteria was found despite prior workstation type.These findings concur with other sustainable design studies and demonstrate that the questionnaire can be used by sustainable designers to document and explore design outcomes.展开更多
A recently developed 3-dimensional earth contact simulation program that operates as a subroutine of the EnergyPlus whole building energy simulation program was used to evaluate the energy performance and cost-effecti...A recently developed 3-dimensional earth contact simulation program that operates as a subroutine of the EnergyPlus whole building energy simulation program was used to evaluate the energy performance and cost-effectiveness of retrofit slab-on-grade(SOG)foundation insulation.An optimized retrofit insulation design utiliz-ing hydro-vacuum excavation was developed that generated 8.4%larger metered(or site)energy savings at a$428 lower cost than the IECC 2012 requirement in a Minneapolis,MN climate for a 400 ft2 test building.The energy performance and cost effectiveness of single and multi-family buildings was assessed for climate Zones 4–7.With reference to the Building America B10 benchmark,the highest site energy savings of 5%was realized for a single family home in Duluth,MN,and the lowest savings of 1.4%for a 4-unit townhouse in Richmond,VA.SOG foundation insulation retrofit simple paybacks ranged from 18 to 47 years.Thus it is likely that larger energy savings of 10%or more with concomitantly reduced simple paybacks can only be realized in well-insulated buildings.展开更多
文摘INTRODUCTION The Minnesota Sustainable Building Guidelines is a progressive sustainability program for state funded buildings which serves as a model for sustainability in Minnesota buildings.The program was created by the State of Minnesota in 2001 and developed by a team led by the Center for Sustainable Building Research(CSBR)at the University of Minnesota.Unlike other green building programs,it focuses on measured performance improvements,using a list of required metrics instead of a menu of potential options.The program is structured to provide a feedback loop to the building design,construction and operations industry in the state.Elements of the program are used through all phases of the development of state-funded buildings in Minnesota from pre-design through design,and construction and for ten years of operations.It is continually updated and improved in collaboration with state agencies and industry stakeholders and could serve as a model for localized green building programs.
文摘This case study investigated employees’work performance and satisfaction in relation to sustainable design criteria used to design the interior of their office building.The case study is part of ongoing research to continue testing a questionnaire for validity and reliability,which will contribute to the development of sustainable design/occupant scales relating to satisfaction and performance.A self-administered,Internet-based questionnaire was developed that reflects a set of recognized sustainable design guidelines.It was submitted to over 200 employees of a business housed in a newly built office building in a mid-western city.Generally positive results were found for employees’satisfaction with the new facility(site,building,and interior)and their performance as related to sustainable design criteria in the new facility.Dissatisfaction with acoustic and privacy conditions were found for employees of open-office workstation types(cubicles).Exploration of prior workstation types showed that moving from private offices to cubicles decreased employees’satisfaction with new cubicles compared to moving from cubicles in a prior building to cubicles in the new building,though dissatisfaction with these two criteria was found despite prior workstation type.These findings concur with other sustainable design studies and demonstrate that the questionnaire can be used by sustainable designers to document and explore design outcomes.
文摘A recently developed 3-dimensional earth contact simulation program that operates as a subroutine of the EnergyPlus whole building energy simulation program was used to evaluate the energy performance and cost-effectiveness of retrofit slab-on-grade(SOG)foundation insulation.An optimized retrofit insulation design utiliz-ing hydro-vacuum excavation was developed that generated 8.4%larger metered(or site)energy savings at a$428 lower cost than the IECC 2012 requirement in a Minneapolis,MN climate for a 400 ft2 test building.The energy performance and cost effectiveness of single and multi-family buildings was assessed for climate Zones 4–7.With reference to the Building America B10 benchmark,the highest site energy savings of 5%was realized for a single family home in Duluth,MN,and the lowest savings of 1.4%for a 4-unit townhouse in Richmond,VA.SOG foundation insulation retrofit simple paybacks ranged from 18 to 47 years.Thus it is likely that larger energy savings of 10%or more with concomitantly reduced simple paybacks can only be realized in well-insulated buildings.
