The Experts below are selected from a list of 12519 Experts worldwide ranked by ideXlab platform
Jasper Prins - One of the best experts on this subject based on the ideXlab platform.
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Modelling the effects of phase change materials on the energy use in Buildings : results of experiments and system dynamics modelling
2012Co-Authors: Jasper PrinsAbstract:The current era is in need for more and more Sustainable energy solutions. Phase Change Materials (PCM’s) are a solution for a more Sustainable Build Environment because they can help to reduce the energy use of Buildings during heating and cooling of the indoor air. This paper presents the results of recent experiments that have been executed with test boxes. In addition a System Dynamics model has been developed to find out how PCM’s can be used efficiently without testing in reality. The first experiment, in which PCM’s were applied in a concrete floor, shows a reduction of peak temperatures with 4˚C ± 0.7˚C on maximum temperatures and over 1.5 ˚C ± 0.7˚C on minimum temperatures during warm periods. The model confirmed these findings, although the predicted reductions were slightly. During the second experiment more PCM’s were applied by mounting them into the walls using gypsum plasterboard to increase the latent heat capacity. Remarkably, both the experimental set-up as the model showed that the increase of PCM´s (of almost 98%) causes hardly any difference compared to the first situation. Adapting the exterior in a way to absorb more solar energy, increases the average indoor temperature but decreases the reduction of peak temperatures. Again the model confirmed these findings of the experiment. These results show that the effect of PCM’s varies on different climatological contexts and with different construction components physics. This means no straight forward advice on the use of PCM’s for a Building design can be given. The solution for this problem is provided by the model, showing that the effects of PCM’s can be modelled in order to use PCM’s in an effective way in different climatological contexts and with different characteristics of construction components. The research shows that a simple model is already capable of predicting PCM performance in test boxes with reasonable accuracy. Therefore it can be used as a template for designing improved tools to come to an effective use of PCM’s in Buildings.
M. Faris Khamidi - One of the best experts on this subject based on the ideXlab platform.
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Determining the Level of Green Building Public Awareness: Application and Strategies
2012Co-Authors: A Umar Usman, M. Faris KhamidiAbstract:The creation of a Sustainable future depends on the knowledge as well as participation of the people, as well as an understanding of the consequences of individual behavior. Construction industry has long been associated with the harmful effects to our mother earth. As concepts of Green Building took form in new real trends and planning curriculum, Green Building in general continues to have not received much attention with the public. Because the question of techniques the general population perceives Green Building concepts may be of ultimate importance, it seems the logical beginning reason behind trying to capture something in regards to the character of support for green Building initiatives should be to survey people who may be most likely by having an opinion. The research examines support for green Building initiatives while controlling for awareness, gender, and age. This paper focuses on the actions proposed to be carried out by the government, non-government organizations as well as construction players in promoting green Building awareness to the general public. To ensure that all those concerted efforts are never only skin deep in its impact, a survey had been carried out to investigate the level of awareness regarding this issue. The survey conducted revealed that although the general public are aware of the growing problems on sustainability, minor efforts are developed from them in implementing this. A lot more work is necessary needed to enhance public awareness in the application of green Building and further stimulate measures and strategies towards a Sustainable Build Environment.
A Umar Usman - One of the best experts on this subject based on the ideXlab platform.
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Determining the Level of Green Building Public Awareness: Application and Strategies
2012Co-Authors: A Umar Usman, M. Faris KhamidiAbstract:The creation of a Sustainable future depends on the knowledge as well as participation of the people, as well as an understanding of the consequences of individual behavior. Construction industry has long been associated with the harmful effects to our mother earth. As concepts of Green Building took form in new real trends and planning curriculum, Green Building in general continues to have not received much attention with the public. Because the question of techniques the general population perceives Green Building concepts may be of ultimate importance, it seems the logical beginning reason behind trying to capture something in regards to the character of support for green Building initiatives should be to survey people who may be most likely by having an opinion. The research examines support for green Building initiatives while controlling for awareness, gender, and age. This paper focuses on the actions proposed to be carried out by the government, non-government organizations as well as construction players in promoting green Building awareness to the general public. To ensure that all those concerted efforts are never only skin deep in its impact, a survey had been carried out to investigate the level of awareness regarding this issue. The survey conducted revealed that although the general public are aware of the growing problems on sustainability, minor efforts are developed from them in implementing this. A lot more work is necessary needed to enhance public awareness in the application of green Building and further stimulate measures and strategies towards a Sustainable Build Environment.
Mohamad Faizal Tajul Baharuddin - One of the best experts on this subject based on the ideXlab platform.
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Mapping of geotechnical data using seismic refraction studies
2013Co-Authors: Mohd Hazreek Zainal Abidin, Rosli Saad, Fauziah Ahmad, Devapriya Chitral Wijeyesekera, Jamil Matarul, Mohamad Faizal Tajul BaharuddinAbstract:Geotechnical data mapping is important during the pre and post civil engineering construction particularly near or inside the geohazard area. Subsurface ground instability reflects difficulty of engineering investigation task especially to determine the possible subsurface ground instability zone for rehabilitation, maintenance and monitoring purposes. This study applied a seismic refraction method to investigate a geotechnical data for preliminary geotechnical and engineering geology assessment due to subsurface ground instability. The method used a concept of seismic waves generated by one of several types of energy sources and detected by arrays of sensitive devices called geophones. The data was processed by Optim software for generating subsurface velocity distribution (primary velocity, vp) and interpretation with supported by existing borehole information. The result obtained three main velocity layers with possible subsurface ground instability zone which consisted of top soil/residual soil (350 – 600 m/s) 0 – 4 m, weathered zone with a possible mixtures of soil, boulder and rock fractured (500 – 1900 m/s) 2 – 23 m and fresh rock/bedrock (> 2300 m/s) from 6 m depth. The thickness and width of subsurface ground instability zone varies within the survey line from 3 – 20 m and 75 m respectively with a primary velocity of 700 – 1800 m/s. The seismic refraction survey produces a good relationship results compared to the borehole information in term of stratigraphy and geomaterials features. This study proved that the seismic refraction method was a good geophysical technique to be integrated in geotechnical mapping assessment since its covers a large area which extends the borehole data. The application of seismic refraction method can increase the effectiveness of geotechnical data in term of cost and time since it can determine the subsurface information in two dimensional (2-D) profiles rapidly by employing fewer workers compared to others conventional mapping techniques. In addition, this geophysical method used a surface technique that can reduce the site damageability during the data acquisition stages which can contribute the development in a Sustainable Build Environment.
Mohd Hazreek Zainal Abidin - One of the best experts on this subject based on the ideXlab platform.
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Mapping of geotechnical data using seismic refraction studies
2013Co-Authors: Mohd Hazreek Zainal Abidin, Rosli Saad, Fauziah Ahmad, Devapriya Chitral Wijeyesekera, Jamil Matarul, Mohamad Faizal Tajul BaharuddinAbstract:Geotechnical data mapping is important during the pre and post civil engineering construction particularly near or inside the geohazard area. Subsurface ground instability reflects difficulty of engineering investigation task especially to determine the possible subsurface ground instability zone for rehabilitation, maintenance and monitoring purposes. This study applied a seismic refraction method to investigate a geotechnical data for preliminary geotechnical and engineering geology assessment due to subsurface ground instability. The method used a concept of seismic waves generated by one of several types of energy sources and detected by arrays of sensitive devices called geophones. The data was processed by Optim software for generating subsurface velocity distribution (primary velocity, vp) and interpretation with supported by existing borehole information. The result obtained three main velocity layers with possible subsurface ground instability zone which consisted of top soil/residual soil (350 – 600 m/s) 0 – 4 m, weathered zone with a possible mixtures of soil, boulder and rock fractured (500 – 1900 m/s) 2 – 23 m and fresh rock/bedrock (> 2300 m/s) from 6 m depth. The thickness and width of subsurface ground instability zone varies within the survey line from 3 – 20 m and 75 m respectively with a primary velocity of 700 – 1800 m/s. The seismic refraction survey produces a good relationship results compared to the borehole information in term of stratigraphy and geomaterials features. This study proved that the seismic refraction method was a good geophysical technique to be integrated in geotechnical mapping assessment since its covers a large area which extends the borehole data. The application of seismic refraction method can increase the effectiveness of geotechnical data in term of cost and time since it can determine the subsurface information in two dimensional (2-D) profiles rapidly by employing fewer workers compared to others conventional mapping techniques. In addition, this geophysical method used a surface technique that can reduce the site damageability during the data acquisition stages which can contribute the development in a Sustainable Build Environment.
