Green building rating tools used for planning and assessing the impact of buildings on the environment are continually revised in line with user needs. The appropriateness of tools for the Zambian building industry de...Green building rating tools used for planning and assessing the impact of buildings on the environment are continually revised in line with user needs. The appropriateness of tools for the Zambian building industry depends on whether the tools adequately meet minimum green buildings standards and the country’s environmental aspirations. The utilization of green building rating tools is important if Zambia is to achieve the real benefits of green buildings, however very little is known about the levels of utilization in Zambia. A cross-sectional study of 115 professionals from the building industry in Zambia was undertaken using a sequential mixed method approach, to investigate the level of utilization, preferred criteria and, the barriers and drivers to the utilization of tools. The significance of the study was that it demonstrated the association between utilization of green building rating tools and environmental, technological, economic, and social green buildings practices by selected professionals in the Zambian building industry. There is a need to use materials and practices that are locally based and promote the local economy. The technical needs were met in tools, that were considered easy to use, interesting and comprehensive. Some of the green building rating tools were considered unsuitable due to the absence of appropriate criteria and the main economic challenge was the high cost of certification. The association was significant between utilization and those involved in a variety of projects than those who were involved in only residential buildings. Barriers to utilization were a lack of government regulations on green buildings designs and the high cost of certification. The drivers were environmental benefits, the interest of developers in green buildings, and having technical skills. The study recommends a review of the current building regulations to include green buildings practices and materials and adaptation of appropriate rating tools.展开更多
The heating,ventilating,and air conditioning(HVAC)system consumes nearly 50%of the building’s energy,especially in Taiwan with a hot and humid climate.Due to the challenges in obtaining energy sources and the negativ...The heating,ventilating,and air conditioning(HVAC)system consumes nearly 50%of the building’s energy,especially in Taiwan with a hot and humid climate.Due to the challenges in obtaining energy sources and the negative impacts of excessive energy use on the environment,it is essential to employ an energy-efficient HVAC system.This study conducted the machine tools building in a university.The field measurement was carried out,and the data were used to conduct energymodelling with EnergyPlus(EP)in order to discover some improvements in energy-efficient design.The validation between fieldmeasurement and energymodelling was performed,and the error rate was less than 10%.The following strategies were proposed in this study based on several energy-efficient approaches,including room temperature settings,chilled water supply temperature settings,chiller coefficient of performance(COP),shading,and building location.Energy-efficient approaches have been evaluated and could reduce energy consumption annually.The results reveal that the proposed energy-efficient approaches of room temperature settings(3.8%),chilled water supply temperature settings(2.1%),chiller COP(5.9%),using shading(9.1%),and building location(3.0%),respectively,could reduce energy consumption.The analysis discovered that using a well-performing HVAC system and building shading were effective in lowering the amount of energy used,and the energy modelling method could be an effective and satisfactory tool in determining potential energy savings.展开更多
文摘Green building rating tools used for planning and assessing the impact of buildings on the environment are continually revised in line with user needs. The appropriateness of tools for the Zambian building industry depends on whether the tools adequately meet minimum green buildings standards and the country’s environmental aspirations. The utilization of green building rating tools is important if Zambia is to achieve the real benefits of green buildings, however very little is known about the levels of utilization in Zambia. A cross-sectional study of 115 professionals from the building industry in Zambia was undertaken using a sequential mixed method approach, to investigate the level of utilization, preferred criteria and, the barriers and drivers to the utilization of tools. The significance of the study was that it demonstrated the association between utilization of green building rating tools and environmental, technological, economic, and social green buildings practices by selected professionals in the Zambian building industry. There is a need to use materials and practices that are locally based and promote the local economy. The technical needs were met in tools, that were considered easy to use, interesting and comprehensive. Some of the green building rating tools were considered unsuitable due to the absence of appropriate criteria and the main economic challenge was the high cost of certification. The association was significant between utilization and those involved in a variety of projects than those who were involved in only residential buildings. Barriers to utilization were a lack of government regulations on green buildings designs and the high cost of certification. The drivers were environmental benefits, the interest of developers in green buildings, and having technical skills. The study recommends a review of the current building regulations to include green buildings practices and materials and adaptation of appropriate rating tools.
基金support by the Ministry of Science and Technology under Grant No.MOST 108-2622-E-169-006-CC3.
文摘The heating,ventilating,and air conditioning(HVAC)system consumes nearly 50%of the building’s energy,especially in Taiwan with a hot and humid climate.Due to the challenges in obtaining energy sources and the negative impacts of excessive energy use on the environment,it is essential to employ an energy-efficient HVAC system.This study conducted the machine tools building in a university.The field measurement was carried out,and the data were used to conduct energymodelling with EnergyPlus(EP)in order to discover some improvements in energy-efficient design.The validation between fieldmeasurement and energymodelling was performed,and the error rate was less than 10%.The following strategies were proposed in this study based on several energy-efficient approaches,including room temperature settings,chilled water supply temperature settings,chiller coefficient of performance(COP),shading,and building location.Energy-efficient approaches have been evaluated and could reduce energy consumption annually.The results reveal that the proposed energy-efficient approaches of room temperature settings(3.8%),chilled water supply temperature settings(2.1%),chiller COP(5.9%),using shading(9.1%),and building location(3.0%),respectively,could reduce energy consumption.The analysis discovered that using a well-performing HVAC system and building shading were effective in lowering the amount of energy used,and the energy modelling method could be an effective and satisfactory tool in determining potential energy savings.
