Hiroatsu Fukuda

The University of Kitakyushu

In the context of climate change, urban blue-green infrastructure (UBGI), consisting of water and vegetation, has received extensive attention for urban microclimate improvement. However, the detailed quantification of spatial relationships between blue and green infrastructure elements has not been conducted about the thermal environment. To study...

In response to climate change, urban blue-green infrastructure (UBGI) improves the microclimate of the built environment. In previous research, UBGI (consisting of water and greenery) is found to be a cold source in the summer, alleviating urban thermal stress. However, studies on the heating effect of UBGI in the winter are limited. This effect ca...

Hourly solar radiation data are of great concern for solar PV, solar thermal and building energy assessment. Unfortunately, due to economic as well as technical limitations, most studies of solar radiation as well as actual measurements are daily values. Hence, daily solar radiation decomposition model is quite significant. Furthermore, graphical r...

Hydrogen-fuelled buses play an important role in the construction of low-carbon cities as a means of green travel. Beijing, as a pilot city of hydrogen-fuelled buses in China, is very important in the promotion of hydrogen-fuelled buses in China. Unfortunately, the public acceptance of hydrogen-fuelledfuelled buses and their environmental positive...

In China's hot summer and cold winter (HSCW) regions, many buildings are not centrally heated and commonly rely on energy-inefficient thermoregulation devices such as electric heaters and air conditioners. The use of Trombe walls in buildings can reduce building energy consumption by up to 30%. To investigate the potential of Trombe walls to reduce...

Robotic construction is a powerful means of addressing labor shortages, low productivity, and low sustainability in the construction industry. Even though construction robots have attracted attention in research and practice, in a market condition where the technology and industry scale of the construction industry is yet unable to meet the scale o...

Currently, quality air and renewable energy are main concerns in protecting the environment. Comparing willingness to pay for quality air and renewable energy is rare in the existing literature. However, the public faces these issues simultaneously. In addition, population mobility under China’s household registration system, i.e., urban living exp...

Determining the impact degrees of PCM thermal parameters on energy demand and economic benefits can provide references for selecting or developing PCM products. Previous studies have mostly explored the impact of a part of PCM thermal parameters on energy demand, while comprehensive analysis containing all thermal parameters is less. Meanwhile, the...

This study investigates the use of PCM-TWS (phase change material Trombe wall) as a solution for improving energy efficiency in HSCW region buildings in China. The study found that the optimal parameters for PCM-TWS include a phase change temperature of 20-30 • Celsius, a latent heat of 175-225 kJ/kg, and an air gap and indoor air exchange rate of...

In recent years, many scholars worldwide have carried out research related to the relationship between the construction of rural dwellings and the indoor thermal environment in response to the issue of building sustainability. China’s rural revitalization has developed rapidly in recent years. Although previous research showed that the poor indoor...

This study aims to assess the risk of localized urban waterlogging based on the survey of surface water in the inner city of Hanoi, Vietnam. To achieve this task, the spatial analysis method integrated by ArcGIS, and the open Internet databases were used to generate the contained surface water survey network of Hanoi in 2020. The results show that...

Robots have been increasingly involved in global construction and are considered one of the most promising solutions for the reform of the construction industry. The superiority of the robotic construction process compared to the present stage of actual construction with predominantly human participation is mainly reflected in the high efficiency a...

The elderly community day care model is an emergent solution to the aging problem influenced by the Eastern perspective of family in China. Due to the structural problem of spatial disorder in most of China’s urban built-up areas, the planning and construction of elderly day care centers (EDCCs) is facing great challenges. This study aims to compre...

This paper presents parametric and multi-objective optimization (MOO) approach in optimizing daylight and energy consumption by incorporating louvres shading devices depicting three different sky conditions: Birmingham, UK, Jakarta, Indonesia, and Sydney, Australia. The study aims to observe the best louvre design configuration for each given conte...

There are numerous existing residential buildings in Hangzhou, which has resulted in considerable carbon emissions and the formation of greenhouse gases with significant adverse impacts on citizens’ quality of life.. It is thus imperative to conduct a greening renovation of existing residential buildings. In this paper, we use a double-bounded disc...

The comprehensive and coordinated sustainable development of residential dwellings requires a response to the multidimensional environment. In this study, typical traditional Tianshui dwellings are selected as research objects, through the methods of field investigation, in-depth conversations, and on-site monitoring, in order to investigate the po...

Along with the rise of awareness in implementing the environmentally conscious urban design, the classical process in approaching urban environmental analysis should be shifted to the performance-based considerations. In architecture and urban design, the tools developed recently holds promise to assist the decision-making process in the early phas...

Since the implementation of Chinese Western Development Strategy, gully regions of the Loess Plateau experience rapid development. Large number of residents living in gullies move to tableland, village combination and extension come to be a common phenomenon. Due to the neglect of ecological carrying capacity evaluation and the lack of scientific m...

Energy use differences between day and night have been a key point in the efficient use of utilities. The battery energy storage system (BESS) is an attractive solution to level the grid load and has been introduced independently into many communities, although with high costs. Battery sharing presents the possibility of integrating independent ene...

Urban squares are an important part of a city’s overall spatial environment. However, many urban squares lack rational designs, causing the thermal environment to deteriorate. To ensure sustainable urban development, urban square microclimates should be improved. Given that, this study investigates the effects of three coverages of three landscape...

The ability of deep learning has been tested to learn graphical features for building-plan generation. However, whether the deeper space allocation strategies can be obtained and thus reduce energy consumption has still not been investigated. In the present study, we aimed to train a neural network by employing a characterized sample set to generat...

Building sector contributes 40% of total energy consumption. In line with this, passive design strategy should be taken as an essential consideration to bring occupants comfort both thermally and visually. Besides, related to human health, one of the factors that the designer is encouraged to fulfill is the proportional amount of daylight that pene...

Battery energy storage system (BESS) is an expected solution for the local surplus renewable energy. Due to the high initial investment, the profitability of the BESS program remains a concern at present. Therefore, in this paper, we want to seek a new frame to introduce the BESS which is share the batteries in a community. And we presented a new m...

The involvement of robots in building construction is already a global trend. Compared with the current stage of construction in which a large number of people are involved, the stability of the robot construction process will greatly affect the construction efficiency and construction accuracy, thus (1) reducing the impact on the environment, henc...

Architects should consider the aesthetic experience of potential users when designing architectures. Previous studies have shown that subjective aesthetic judgment of architectures is influenced by structure features, and Western observers prefer structures that have curvilinear contours, high ceilings, and open space. The building styles, however,...

This paper presents a preliminary estimation of Hangzhou citizens’ willingness to pay (WTP) for the construction of battery swapping stations (BSSs) for battery electric vehicles (BEVs). This study also explored the factors that affect WTP.A total of 872 valid samples were obtained. As for the 202 families who refused to pay, the spike model was ap...

This paper discusses an improved approach to the Trombe wall: an insulated panel is installed on the inner side, and vents are installed at the top and bottom to connect the outer and inner air layer with the interior. Direct current (DC) fans are installed in the upper vents for stable control of the air circulation. The study first analyzed the t...

With the increase of residents’ requirements for the living environment, the current indoor thermal environment cannot meet the needs of modern rural residents who live in the northeast of Sichuan, China. Passive energy-saving strategies can not only improve the thermal performance of envelopes but also create high economic benefits. Evaluating the...

Thermal performance of exterior walls can be improved with increasing insulation thickness, but the corresponding material cost will also rise. Therefore, the optimum thickness of insulation material necessarily exists when the economy is considered. Adding insulation materials with the optimum thickness for exterior walls of rural traditional dwel...

The current construction industry faces many challenges, such as low productivity, low material application rates, and poor environmental benefits. Robotic and automated construction (RAAC) technologies represent a breakthrough from traditional construction methods and are considered an effective way to improve productivity, ecological efficiency,...

Albasia (Albizia falcataria), known as sengon wood, is a fast-growing tree species commonly found in Indonesian forests and community plantations. However, the low-density, hardness, and strength significantly restrict its commercial application. The purpose of this study was to determine the influence of densification on the physical properties of...

Actual measurement and numerical simulation were conducted in crawl space of detached houses, and the following points were clarified. 1. A house with high insulation performance of the floor insulation will have a lower temperature in the crawl space and higher humidity than a house with low. 2. Low temperature and high humidity becomes more notic...

This paper presents a parametric and Multi-Objective Optimisation approach to investigate daylight performance of the expanded-metal shading depicting the sky conditions in Kitakyushu, Japan. The study is an initial design method utilising a robust computational calculation aiming to verify expanded metal as an environmentally friendly building mat...

Understanding the factors influencing the aesthetic experience of architectures is an important topic in empirical aesthetics. In this study, we examined the effect of three architectural factors, i.e., ceiling height, openness, and contour, on viewers' aesthetic appreciation through a series of experiments. In previous studies on architectural aes...

The use of parametric and multi-objective optimization (MOO) as a new way of approaching architectural design has been growing in line with current breakthroughs in computational architecture. Wood, on the other hand, is a living and unique building material that provides durability, manufacturing flexibility, and local availability. One of the str...

Urban wetlands play an important role in the urban ecological environment. Due to their special habitat characteristics, urban wetlands can serve as micro refuges for endangered plants. This study takes Isoetes sinensis as a case study to explore the feasibility of introducing endangered plants into urban wetlands to identify potential habitats thr...

Municipal solid waste (MSW) management has become a problem in China, mainly since there is no uniform standard for MSW management charges, causing conflict between local residents and the government. An intelligent garbage sorting system (IGSS) is an effective sorting approach for MSW management. To explore the predictors of local residents’ willi...

Having a longstanding reputation as an industrialized building material, expanded metal mesh is one of the favorable materials used by the designer to enhance architectural features. The matured and standards of this material promoted by National Association of Architectural Metal Manufacturers (NAAMM) along with Expanded Metal Manufacturers Associ...

In the context of the Chinese rural revitalization strategy, the unique residential characteristics of local vernacular dwellings formed by profound historical and cultural accumulation, climate characteristics, and residential lifestyle have undergone profound change in the gully regions of the Loess Plateau. Accordingly, the contradictions of tra...

Over the past few years, increasing tourists have generated interest in social media and shared their trip pictures and experience on it. As revealed from existing studies, tourists' preference of posting pictures of their trip on a social media site(s) may be associated with their purchasing behaviors. In the present study, Choice-based Conjoint A...

A constant supply of novel ideas and contributions from all economic sectors is required to further the sustainable development of cities. Therefore, there is a growing need for well-educated graduates to enter metropolitan job markets. As urban environments and culture have been shown to affect a graduates’ eventual carrier choice and trajectory,...

Patented in the 1880s and having a longstanding industrial history, expanded metal sheet has a remarkable reputation for its application. However, despite the benefits of its use and numerous studies has been conducted on window shading and its daylight evaluation, research on extended metal shading’s daylight performance is still limited. This pap...

Architecture has a strong relationship with the daylight universe. It implicates further occupants’ behaviour toward visual comforts, healthiness, and energy consumption. The daylight simulation in the early phase of design benefits the architect in predicting the possibilities of daylight-related target goals during the design process. A shading s...

Wood is an ideal building material since it is renewable and environmentally friendly. However, due to its lack of dimensional stability and durability, it may be limited in structural applications. As a result, modification is required to address the problems mentioned above. Significant developments in wood modification have occurred over the pas...

Along with the enormous impact on computational development in architecture and urban design, the way in approaching the built environment is shifting and intended to look closer to performance and evidence-based design. This development holds promise in handling complex computation to approach desired targeted design goals. However, the implementa...

The traditional residence with protogenetic spatial arrangement is regarded as a critical carrier of social logic of space, which makes it an ideal object for studying the relationship between the spatial form and social context. To this end, a comparative analysis is conducted using Depthmap Software. This study is based on space syntax theory bet...

The energy consumed by the heating, ventilation, and air conditioning (HVAC) system accounts for a large part of the energy consumption of buildings. Solar energy technologies in buildings have attracted more and more attention from scholars and architects because of their significant advantages in sustainable development, such as energy saving, en...

In this paper, we propose a new intelligent temperature-controlled ventilated double-layer Trombe wall system for cold climate zones. This system consists of an insulation layer, an inner air channel, a massive wall, an outer air channel and a glazing plate. By changing the ventilated condition of inner and outer air layers, this system further con...

Space cooling is currently the fastest-growing end-user in buildings. The global warming trend combined with increased population and economic development will lead to accelerated growth in space cooling in the future, especially in China. The hot summer and cold winter (HSCW) zone is the most densely populated and economically developed region in...

There are numerous buildings in existing residential areas in Hangzhou City, which results in much carbon emissions and the formation of greenhouse gases that have exerted significant ad-verse impacts on the living comfort of citizens in Hangzhou City. It is imperative to conduct a greening renovation of buildings in existing residential areas in H...

Cooling energy demand is a global problem, especially in the hot area. According to the International Energy Agency, this problem is driven by complex factors, from economic condition to urbanization. This paper examines the use of simple sun shading design as one of possible solutions to reduce the cooling energy in buildings by lowering indoor te...

Energy consumption is a major sustainability issue. One of the largest portions of energy consumption in buildings comes from cooling. This paper proposes the use of L-shaped minilouvers as shading, which both improve useful daylight illuminance (UDI) and reduce cooling-energy consumption. Jakarta, Indonesia was chosen as the study location since i...

The increase in energy consumption for cooling is a global problem, especially in hot regions, including Indonesia. It happens because of wealth, population growth, climate, building designs, and electronic appliances. Focusing on Jakarta, Indonesia's capital city, louvres in 18 different dimensions and overhangs in 2 different dimensions are simul...

This study aims to characterize the Japanese household properties, meanwhile investigates the electricity consumption by end-use of 12 households in electric-only apartments in Kitakyushu, Japan. Achieved electricity data from the measurement and household surveys, the author perceived significant relationships between the household characteristics...

This study investigated the energy conservation of a non-insulated old apartment with a ventilated sunspace in Qingdao, China. The ventilation between the bedroom and sunspace of the apartment was controlled by the Delta temperature, which is equal to the sunspace temperature minus the bedroom temperature. EnergyPlus software was used to calculate...

Under the background of Chinese Rural Revitalization Strategy, how to improve rural regional environment and living quality is very important and urgent. At present, residential buildings in gully regions of the Loess Plateau have poor insulation and high-energy consumption. Thus, better ecological design can largely save energy and improve living...

Against the background of the Rural Vitalization Strategy in the gully regions of the Loess Plateau, large number of residents living in gullies move to tableland. On the one hand, this causes the disappearance of slope villages and gully villages; on the other hand, it increases ecological pressure on tableland, which was originally densely popula...

Robotic tectonics have been integrated into the architectural profession through automated construction for more than a decade, advancing sustainability initiatives in the industry and increasing the quality of building construction. Over the years, avant-garde architects have explored the feasibility of this new design paradigm through the integra...