Journal of Advanced Research in Fluid Mechanics and Thermal Sciences
Buildings account for nearly 50% of the total energy consumption. The use of air-conditioning is ... more Buildings account for nearly 50% of the total energy consumption. The use of air-conditioning is one of the major influencers to the high energy consumption in buildings. To tackle this high energy consumption, buildings are required to be more energy efficient. This study aimed to investigate the retrofitting of existing residential building for energy efficiency by using the Overall Thermal Transfer Value (OTTV) as an assessment tool. Various retrofitting measures were involved, including varying the colour of the opaque wall with different solar absorptivity, the U-value and shading coefficient of the Glazing system, and the type and projection of the external shading. The results showed that applying the retrofitting measures individually (i.e., using light colour with low solar absorptivity, replacing the glazing system to have lower shading coefficient and U-value, and the installation of external shading systems with low shading coefficient) can decrease the OTTV by 26% to 33...
Journal of Advanced Research in Fluid Mechanics and Thermal Sciences
This study evaluates the envelope thermal performance of high-rise apartment buildings in Malaysi... more This study evaluates the envelope thermal performance of high-rise apartment buildings in Malaysia, which are being largely dominated due to the high economic development and increased population. The evaluation was conducted using the Overall Thermal Transfer Value (OTTV), which is the key tool used in the Green Building Index to assess the Energy Efficiency of buildings. Different high-rise apartment buildings were selected with different architecture styles, to account for several periods of building construction. The OTTV value was calculated for the west-oriented façade of the selected buildings, which is considered as a critical orientation that receives high solar radiation. The results showed that four out of the five investigated buildings achieved the minimum requirements for the OTTV, i.e., less than 50 W/m². The maximum and minimum OTTV values with the buildings’ original design were 82.60 W/m² and 41.54 W/m², respectively. However, one of the buildings achieved a lower ...
2020 International Conference on Robots & Intelligent System (ICRIS), 2020
In order to promote the further development of local economy in Heilongjiang Province, this paper... more In order to promote the further development of local economy in Heilongjiang Province, this paper analyzes the promotion effect of venture capital industry on local economic development in Heilongjiang Province under the financial big data. Design financial big data platform, which is composed of core working layer, application support layer and data resource layer. According to the data collected by the financial big data platform, this paper analyzes the GDP ranking, industrial structure and other indicators of Heilongjiang Province, and constructs the model of promoting economic development by venture capital industry, modifies the model by using the penalty estimation variable and penalty function, and outputs the analysis results. The simulation results show that the proposed method has high accuracy and short time, and can be further extended in practice.
This paper challenges the fact that the absolute freedom for residents to locate themselves where... more This paper challenges the fact that the absolute freedom for residents to locate themselves wherever they want can lead to sustainable cities. Urban sprawl is the corollary to this freedom. Urban sprawl has become a controversial issue. Lines of thought among academics, practitioners, and local authorities have been diverse. Some academics advocate the compact city as an antidote to urban sprawl, some scholars doubt the ability of conventional notions of containments to create sustainability, and others are fascinated by urban technologies and believe in the feasibility of these technologies, whereas local authorities impose policies, one after the other, without effective results. The problematic point is the absence of a comprehensive approach to undermining the urban sprawl sustainably. On the other hand, the physical urban compactness alone cannot meet containment aims. The study therefore study poses a question: Is there a theory or policy that can accommodate all of these idea...
Rapidly growing population in urban areas since the 1950s causes highly increasing demands for ho... more Rapidly growing population in urban areas since the 1950s causes highly increasing demands for housing units. This study aims to investigate the heat gain of the apartments’ façade design in line with the Green Building Index (GBI) standards in Malaysia. This study analyses the shading performance of high-rise apartments’ façades in Penang, Malaysia as case studies. The analysis includes six residential buildings of different architectural periods of construction in the eastern part of Penang Island. The selected case studies are Halaman Kristal 5 and Mutiara Idaman 1 from 1970s to 1990s, Halaman Kristal 1 and Mutiara Idaman 2 from 1990s to 2010s, and Baystar and the Light Linear from 2010 to present. Three different variables were measured in this survey, the façade surface temperature (℃) using thermal imager Fluke Ti20, the Overall Thermal Transfer Value (OTTV) (W/m2), and the extent of sunlight penetration (mm) using SunTool software for the computer simulation. The obtained res...
This study discusses a comparative analysis of the thermal surface temperature on high-rise apart... more This study discusses a comparative analysis of the thermal surface temperature on high-rise apartments designed with late modern styles in Malaysia. In Malaysia, apartments are divided to two categories namely midrise and highrise apartments. Highrise apartments are the residential buildings higher than five stories equipped with elevator whereas midrise apartments have no elevators with 3 to 5 stories’ height. The results of this study will provide a thermal surface data of the apartment facades. The data analyse the level of sustainability awareness of the architectural styles on facade design to the tropical context. This thermal surface analysis will figure the design awareness of the architects who design the buildings in complying with their understanding to the climatic factors. Late modern design styles have a complex geometric design with ranging from simple to complex roof structures which have an emphasis on abstract geometric form in building design. In this study, two l...
This paper discusses development of architectural styles in Putrajaya, Malaysia which can be cate... more This paper discusses development of architectural styles in Putrajaya, Malaysia which can be categorised into three styles namely traditional, colonial and modern design. Traditional architecture is an adaptation to the local climate which evolves to the condition of the place, local material, environment, native ways and culture. Colonial architecture is an adjustment of imported architecture to the local climate, a primary expression of classical style introduced by the European through colonisation and a result of cross cultural architecture with the local built environment as well as architectural styles brought by the Chinese, Arabs, Indian Muslims and Indian Hindus immigrants. Modern architecture is an adjustment of universal style to the local climate, compatible with a large number of mass-produced housing and building units since Industrial Revolution taken place in Europe. The study finds these three styles have progressed to each own identity and character in forming the architectural landscape in Putrajaya.
Journal of Advanced Research in Fluid Mechanics and Thermal Sciences
Buildings account for nearly 50% of the total energy consumption. The use of air-conditioning is ... more Buildings account for nearly 50% of the total energy consumption. The use of air-conditioning is one of the major influencers to the high energy consumption in buildings. To tackle this high energy consumption, buildings are required to be more energy efficient. This study aimed to investigate the retrofitting of existing residential building for energy efficiency by using the Overall Thermal Transfer Value (OTTV) as an assessment tool. Various retrofitting measures were involved, including varying the colour of the opaque wall with different solar absorptivity, the U-value and shading coefficient of the Glazing system, and the type and projection of the external shading. The results showed that applying the retrofitting measures individually (i.e., using light colour with low solar absorptivity, replacing the glazing system to have lower shading coefficient and U-value, and the installation of external shading systems with low shading coefficient) can decrease the OTTV by 26% to 33...
Journal of Advanced Research in Fluid Mechanics and Thermal Sciences
This study evaluates the envelope thermal performance of high-rise apartment buildings in Malaysi... more This study evaluates the envelope thermal performance of high-rise apartment buildings in Malaysia, which are being largely dominated due to the high economic development and increased population. The evaluation was conducted using the Overall Thermal Transfer Value (OTTV), which is the key tool used in the Green Building Index to assess the Energy Efficiency of buildings. Different high-rise apartment buildings were selected with different architecture styles, to account for several periods of building construction. The OTTV value was calculated for the west-oriented façade of the selected buildings, which is considered as a critical orientation that receives high solar radiation. The results showed that four out of the five investigated buildings achieved the minimum requirements for the OTTV, i.e., less than 50 W/m². The maximum and minimum OTTV values with the buildings’ original design were 82.60 W/m² and 41.54 W/m², respectively. However, one of the buildings achieved a lower ...
2020 International Conference on Robots & Intelligent System (ICRIS), 2020
In order to promote the further development of local economy in Heilongjiang Province, this paper... more In order to promote the further development of local economy in Heilongjiang Province, this paper analyzes the promotion effect of venture capital industry on local economic development in Heilongjiang Province under the financial big data. Design financial big data platform, which is composed of core working layer, application support layer and data resource layer. According to the data collected by the financial big data platform, this paper analyzes the GDP ranking, industrial structure and other indicators of Heilongjiang Province, and constructs the model of promoting economic development by venture capital industry, modifies the model by using the penalty estimation variable and penalty function, and outputs the analysis results. The simulation results show that the proposed method has high accuracy and short time, and can be further extended in practice.
This paper challenges the fact that the absolute freedom for residents to locate themselves where... more This paper challenges the fact that the absolute freedom for residents to locate themselves wherever they want can lead to sustainable cities. Urban sprawl is the corollary to this freedom. Urban sprawl has become a controversial issue. Lines of thought among academics, practitioners, and local authorities have been diverse. Some academics advocate the compact city as an antidote to urban sprawl, some scholars doubt the ability of conventional notions of containments to create sustainability, and others are fascinated by urban technologies and believe in the feasibility of these technologies, whereas local authorities impose policies, one after the other, without effective results. The problematic point is the absence of a comprehensive approach to undermining the urban sprawl sustainably. On the other hand, the physical urban compactness alone cannot meet containment aims. The study therefore study poses a question: Is there a theory or policy that can accommodate all of these idea...
Rapidly growing population in urban areas since the 1950s causes highly increasing demands for ho... more Rapidly growing population in urban areas since the 1950s causes highly increasing demands for housing units. This study aims to investigate the heat gain of the apartments’ façade design in line with the Green Building Index (GBI) standards in Malaysia. This study analyses the shading performance of high-rise apartments’ façades in Penang, Malaysia as case studies. The analysis includes six residential buildings of different architectural periods of construction in the eastern part of Penang Island. The selected case studies are Halaman Kristal 5 and Mutiara Idaman 1 from 1970s to 1990s, Halaman Kristal 1 and Mutiara Idaman 2 from 1990s to 2010s, and Baystar and the Light Linear from 2010 to present. Three different variables were measured in this survey, the façade surface temperature (℃) using thermal imager Fluke Ti20, the Overall Thermal Transfer Value (OTTV) (W/m2), and the extent of sunlight penetration (mm) using SunTool software for the computer simulation. The obtained res...
This study discusses a comparative analysis of the thermal surface temperature on high-rise apart... more This study discusses a comparative analysis of the thermal surface temperature on high-rise apartments designed with late modern styles in Malaysia. In Malaysia, apartments are divided to two categories namely midrise and highrise apartments. Highrise apartments are the residential buildings higher than five stories equipped with elevator whereas midrise apartments have no elevators with 3 to 5 stories’ height. The results of this study will provide a thermal surface data of the apartment facades. The data analyse the level of sustainability awareness of the architectural styles on facade design to the tropical context. This thermal surface analysis will figure the design awareness of the architects who design the buildings in complying with their understanding to the climatic factors. Late modern design styles have a complex geometric design with ranging from simple to complex roof structures which have an emphasis on abstract geometric form in building design. In this study, two l...
This paper discusses development of architectural styles in Putrajaya, Malaysia which can be cate... more This paper discusses development of architectural styles in Putrajaya, Malaysia which can be categorised into three styles namely traditional, colonial and modern design. Traditional architecture is an adaptation to the local climate which evolves to the condition of the place, local material, environment, native ways and culture. Colonial architecture is an adjustment of imported architecture to the local climate, a primary expression of classical style introduced by the European through colonisation and a result of cross cultural architecture with the local built environment as well as architectural styles brought by the Chinese, Arabs, Indian Muslims and Indian Hindus immigrants. Modern architecture is an adjustment of universal style to the local climate, compatible with a large number of mass-produced housing and building units since Industrial Revolution taken place in Europe. The study finds these three styles have progressed to each own identity and character in forming the architectural landscape in Putrajaya.
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