The built environment is a major source of global energy consumption and greenhouse gas (GHG) emi... more The built environment is a major source of global energy consumption and greenhouse gas (GHG) emissions potentially exacerbating the threats of climate change. With global rising temperatures, the energy requirements for cooling and ventilating buildings in tropical nations like Malaysia will soar geometrically. Scientists around the globe are exploring several technologies to address the challenges posed by building emissions and energy consumption. One of the main methods is the application of passive design strategies such as external façade shading or self-shading. Studies indicate one of the most practical self-shading technique is recessed window facades (RWF) which can easily integrate without reducing natural light and obscuring views. However, studies on the RWF are limited in literature particularly in Malaysia. This research aimed at carrying out an exploratory survey of recessed window façade (RWF) shading in selected buildings in Johor Bahru Malaysia. The RWF buildings ...
Out of various architectural research methods ranging from quantitative and qualitative types, ex... more Out of various architectural research methods ranging from quantitative and qualitative types, experimental field measurement type is mostly used compared to others due to its practicability. Therefore, there is a need to take into consideration the right step to follow to achieve the needed goal of using this type of methodology. However, this paper present processes and procedures of experimental field measurement for accurate research result(s). These processes include the selection of the right case study building, the use of viable and versatile devices and or equipment, re-calibration and verification for the reliability of the devices, proper launching and readout of the devices especially if the devices are data loggers and proper mounting of the devices for good recording purposes. The study also uncovered the limitation of this methodology despite its merits. The paper furthermore revealed an area where this methodology is mostly applicable.
Journal of Financial Management of Property and Construction, 2015
Purpose – This paper aims to develop a multivariate model that will be applicable to the Nigeria ... more Purpose – This paper aims to develop a multivariate model that will be applicable to the Nigeria construction industry. Design/methodology/approach – A self-administered questionnaire survey was used to source information on project scope factors and qualitative factors considered in the study. Principal component regression was used for data analysis and model development, using SPSS 16.0 for windows, while T-test was used for model testing and validation. Findings – The study found that delay in progress payment by owner, lateness in revising and approving design document by owner, delay in delivering the site to the contractor by the owner, change order by owner during construction, complexity of project design, poor site management and supervision by contractors, and rain effect on construction activities are qualitative/non-project scope factors with good predictive abilities. Research limitations/implications – Cost, gross floor area and number of floors were the only quantita...
International journal of scientific research in science, engineering and technology, Jul 30, 2016
The overdependence on fossil fuels has resulted in significant socio-economic and environmental c... more The overdependence on fossil fuels has resulted in significant socio-economic and environmental challenges such as global warming and climate change. The associated greenhouse gas (GHG) and pollutant emissions have raised global temperatures by 2°C above pre-industrial levels worsening climate change. Similarly, lack of adaptive mitigative strategies could possibly result in disastrous effects on human health, safety, and the environment. However, this will require studies on the effects of rising temperatures, heat indexes and its effects on human health, safety and thermal comfort against the backdrop of rising global temperatures. Therefore, this paper seeks to examine and highlight the role of heat index on the thermal comfort health and safety of building occupants. It also presents perspectives on the potential health related disorders such as heat strokes, cramps, rashes arising from rising global temperatures, global warming and climate change. The findings showed setting up Low Carbon Materials (LCM), Renewable Energy Technologies (RET) and Sustainable Design Practises (SDP) could potential aid climate mitigation. In addition, the outlined strategies will improve, preserve and protect human health, safety and the thermal comfort of building occupants against the adverse effects of rising global temperatures and climate
Article history: Received 16 September 2015 Accepted 25 October 2015 Published Online 13 November... more Article history: Received 16 September 2015 Accepted 25 October 2015 Published Online 13 November 2015
International journal of scientific research in science, engineering and technology, 2016
The overdependence on fossil fuels has resulted in significant socio-economic and environmental c... more The overdependence on fossil fuels has resulted in significant socio-economic and environmental challenges such as global warming and climate change. The associated greenhouse gas (GHG) and pollutant emissions have raised global temperatures by 2°C above pre-industrial levels worsening climate change. Similarly, lack of adaptive mitigative strategies could possibly result in disastrous effects on human health, safety, and the environment. However, this will require studies on the effects of rising temperatures, heat indexes and its effects on human health, safety and thermal comfort against the backdrop of rising global temperatures. Therefore, this paper seeks to examine and highlight the role of heat index on the thermal comfort health and safety of building occupants. It also presents perspectives on the potential health related disorders such as heat strokes, cramps, rashes arising from rising global temperatures, global warming and climate change. The findings showed setting up...
The overdependence on fossil fuels has resulted in significant socioeconomic and environmental ch... more The overdependence on fossil fuels has resulted in significant socioeconomic and environmental challenges such as global warming and climate change. The associated greenhouse gas (GHG) and pollutant emissions have raised global temperatures by 2°C above pre-industrial levels worsening climate change. Similarly, lack of adaptive mitigative strategies could possibly result in disastrous effects on human health, safety, and the environment. However, this will require studies on the effects of rising temperatures, heat indexes and its effects on human health, safety and thermal comfort against the backdrop of rising global temperatures. Therefore, this paper seeks to examine and highlight the role of heat index on the thermal comfort health and safety of building occupants. It also presents perspectives on the potential health related disorders such as heat strokes, cramps, rashes arising from rising global temperatures, global warming and climate change. The findings showed setting up Low Carbon Materials (LCM), Renewable Energy Technologies (RET) and Sustainable Design Practises (SDP) could potential aid climate mitigation. In addition, the outlined strategies will improve, preserve and protect human health, safety and the thermal comfort of building occupants against the adverse effects of rising global temperatures and climate change.
External Sun shading strategy provide an opportunity for the architect to control natural lightin... more External Sun shading strategy provide an opportunity for the architect to control natural lighting, ventilation, and solar gain, all of which provide a benefit to the overall building performance. The intensity of solar radiation on a building façade called for the use of strategies that will intercept its devastating effect before reaching the interior of the building. Due to some challenges encountered by some exterior shading devices, recessed window is confirmed to be one of the best form of shading as it is a form of self-shaded strategies. As the building's biggest heat directing surface, the façade which housed window has the greatest influence in minimizing the building's energy utilization. It is on this premise that this framework aimed at assessing the potentials of recessed window façade for heat gain reduction in the tropical buildings. The methodology used in this study focuses on an intensive review of previous studies and literatures. The paper verified from previous studies that the use of recessed window façade is preferred to other forms of external shading devices because of the problem of thermal bridges, thermal mass, e.t.c encouraged by most shading devices. It also finds out that, the dimensionless " depth " to which the window is recessed, R = r / L and is a very crucial formula amongst orders that determine the heat transfer rate in recessed window shadings.
The built environment is a major source of global energy consumption and greenhouse gas (GHG) emi... more The built environment is a major source of global energy consumption and greenhouse gas (GHG) emissions potentially exacerbating the threats of climate change. With global rising temperatures, the energy requirements for cooling and ventilating buildings in tropical nations like Malaysia will soar geometrically. Scientists around the globe are exploring several technologies to address the challenges posed by building emissions and energy consumption. One of the main methods is the application of passive design strategies such as external façade shading or self-shading. Studies indicate one of the most practical self-shading technique is recessed window facades (RWF) which can easily integrate without reducing natural light and obscuring views. However, studies on the RWF are limited in literature particularly in Malaysia. This research aimed at carrying out an exploratory survey of recessed window façade (RWF) shading in selected buildings in Johor Bahru Malaysia. The RWF buildings ...
Out of various architectural research methods ranging from quantitative and qualitative types, ex... more Out of various architectural research methods ranging from quantitative and qualitative types, experimental field measurement type is mostly used compared to others due to its practicability. Therefore, there is a need to take into consideration the right step to follow to achieve the needed goal of using this type of methodology. However, this paper present processes and procedures of experimental field measurement for accurate research result(s). These processes include the selection of the right case study building, the use of viable and versatile devices and or equipment, re-calibration and verification for the reliability of the devices, proper launching and readout of the devices especially if the devices are data loggers and proper mounting of the devices for good recording purposes. The study also uncovered the limitation of this methodology despite its merits. The paper furthermore revealed an area where this methodology is mostly applicable.
Journal of Financial Management of Property and Construction, 2015
Purpose – This paper aims to develop a multivariate model that will be applicable to the Nigeria ... more Purpose – This paper aims to develop a multivariate model that will be applicable to the Nigeria construction industry. Design/methodology/approach – A self-administered questionnaire survey was used to source information on project scope factors and qualitative factors considered in the study. Principal component regression was used for data analysis and model development, using SPSS 16.0 for windows, while T-test was used for model testing and validation. Findings – The study found that delay in progress payment by owner, lateness in revising and approving design document by owner, delay in delivering the site to the contractor by the owner, change order by owner during construction, complexity of project design, poor site management and supervision by contractors, and rain effect on construction activities are qualitative/non-project scope factors with good predictive abilities. Research limitations/implications – Cost, gross floor area and number of floors were the only quantita...
International journal of scientific research in science, engineering and technology, Jul 30, 2016
The overdependence on fossil fuels has resulted in significant socio-economic and environmental c... more The overdependence on fossil fuels has resulted in significant socio-economic and environmental challenges such as global warming and climate change. The associated greenhouse gas (GHG) and pollutant emissions have raised global temperatures by 2°C above pre-industrial levels worsening climate change. Similarly, lack of adaptive mitigative strategies could possibly result in disastrous effects on human health, safety, and the environment. However, this will require studies on the effects of rising temperatures, heat indexes and its effects on human health, safety and thermal comfort against the backdrop of rising global temperatures. Therefore, this paper seeks to examine and highlight the role of heat index on the thermal comfort health and safety of building occupants. It also presents perspectives on the potential health related disorders such as heat strokes, cramps, rashes arising from rising global temperatures, global warming and climate change. The findings showed setting up Low Carbon Materials (LCM), Renewable Energy Technologies (RET) and Sustainable Design Practises (SDP) could potential aid climate mitigation. In addition, the outlined strategies will improve, preserve and protect human health, safety and the thermal comfort of building occupants against the adverse effects of rising global temperatures and climate
Article history: Received 16 September 2015 Accepted 25 October 2015 Published Online 13 November... more Article history: Received 16 September 2015 Accepted 25 October 2015 Published Online 13 November 2015
International journal of scientific research in science, engineering and technology, 2016
The overdependence on fossil fuels has resulted in significant socio-economic and environmental c... more The overdependence on fossil fuels has resulted in significant socio-economic and environmental challenges such as global warming and climate change. The associated greenhouse gas (GHG) and pollutant emissions have raised global temperatures by 2°C above pre-industrial levels worsening climate change. Similarly, lack of adaptive mitigative strategies could possibly result in disastrous effects on human health, safety, and the environment. However, this will require studies on the effects of rising temperatures, heat indexes and its effects on human health, safety and thermal comfort against the backdrop of rising global temperatures. Therefore, this paper seeks to examine and highlight the role of heat index on the thermal comfort health and safety of building occupants. It also presents perspectives on the potential health related disorders such as heat strokes, cramps, rashes arising from rising global temperatures, global warming and climate change. The findings showed setting up...
The overdependence on fossil fuels has resulted in significant socioeconomic and environmental ch... more The overdependence on fossil fuels has resulted in significant socioeconomic and environmental challenges such as global warming and climate change. The associated greenhouse gas (GHG) and pollutant emissions have raised global temperatures by 2°C above pre-industrial levels worsening climate change. Similarly, lack of adaptive mitigative strategies could possibly result in disastrous effects on human health, safety, and the environment. However, this will require studies on the effects of rising temperatures, heat indexes and its effects on human health, safety and thermal comfort against the backdrop of rising global temperatures. Therefore, this paper seeks to examine and highlight the role of heat index on the thermal comfort health and safety of building occupants. It also presents perspectives on the potential health related disorders such as heat strokes, cramps, rashes arising from rising global temperatures, global warming and climate change. The findings showed setting up Low Carbon Materials (LCM), Renewable Energy Technologies (RET) and Sustainable Design Practises (SDP) could potential aid climate mitigation. In addition, the outlined strategies will improve, preserve and protect human health, safety and the thermal comfort of building occupants against the adverse effects of rising global temperatures and climate change.
External Sun shading strategy provide an opportunity for the architect to control natural lightin... more External Sun shading strategy provide an opportunity for the architect to control natural lighting, ventilation, and solar gain, all of which provide a benefit to the overall building performance. The intensity of solar radiation on a building façade called for the use of strategies that will intercept its devastating effect before reaching the interior of the building. Due to some challenges encountered by some exterior shading devices, recessed window is confirmed to be one of the best form of shading as it is a form of self-shaded strategies. As the building's biggest heat directing surface, the façade which housed window has the greatest influence in minimizing the building's energy utilization. It is on this premise that this framework aimed at assessing the potentials of recessed window façade for heat gain reduction in the tropical buildings. The methodology used in this study focuses on an intensive review of previous studies and literatures. The paper verified from previous studies that the use of recessed window façade is preferred to other forms of external shading devices because of the problem of thermal bridges, thermal mass, e.t.c encouraged by most shading devices. It also finds out that, the dimensionless " depth " to which the window is recessed, R = r / L and is a very crucial formula amongst orders that determine the heat transfer rate in recessed window shadings.
Uploads