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High-rise buildings in tropical region is identical to the use of mechanical Air Conditioning in massive scale. Nevertheless, there is an encouragement to high-rise buildings to reduce its energy consumptions, since they consume quite large amount of energy. This challenge can be overcome with various of strategies, one of them, by means of reducing the cooling load of mechanical Air Conditioning in high-rise building. Prospects come from the modern tall building design strategies, for example the use of double-skin façade to give addition of building skin which could provide indoor temperature protection from outside. Double-skin façade system has continued to increase in buildings in a tropical region such as in Indonesia. However, there is another potential of double skin façade, which is the possibility to increase the buoyancy effect in the air gap between the skin and building envelope. The possibility needs to be studied in order to give a proper way in designing double-skin façade of a high-rise building, especially on Bandung-Indonesia tropical climate. This paper explores the potential of double-skin façade in driving the air inside the façade to generate natural ventilation for a high-rise building in Bandung climate condition. Two parameters are used in exploring the buoyancy force, the width of double-skin façade and the temperature of the skin façade. In general, double-skin façade of a high-rise building in tropical climate can generate buoyancy driven ventilation for the building, it relates strongly to the distance between of the double-skin façade and the building envelope.

Designed in Brutalism style by architect Andrew Renton, Tower Building has 17 floors for academic and lecturers’ office function. As the highest point in University of Nottingham, this tower has been built for almost five decades. The aim of this project is to propose the tower retrofit from current function to accommodation purpose. Improvement in terms of function and building energy performance by applying sustainable building technologies are the objectives of the retrofit. The advanced plan of building retrofit was proposed after assessing the current building performance and determined the problems. The proposed building design was based on building performance simulation result, literature, and precedent studies. Thereafter, several technologies and design ideas were applied for further investigation, to examine how is the strategies works in the building retrofit. Integrated double skin façade with BIPV, bio composite material for internal wall, double low-e glass for external wall, as well as green lung to improve natural ventilation and create public space were proposed for the building.

The city of Bandung, Indonesia contains thematic parks which use certain themes to highlight the features of the park. They are also used as a branding strategy for the city as a whole. As social networking has become a type of media used by most global populations to share experiences and stories and to influence perceptions, and because online reviews are one way to get potential positive information about the success of a business or service, we analyzed online reviews from the Bandung thematic parks. We identified that thematic parks have an influence on the branding of the city of Bandung. Data collection involved data extraction from Google Maps user reviews. Text mining was used to collect the information attributes needed to determine the public perceptions of thematic parks. Data analysis was used to determine the extent to which a park can be a benchmark for place branding in Bandung. This research found that the influence of the thematic park concept is a good strategy for the city of Bandung. Online reviews show that thematic parks in Bandung are better known than non-thematic parks, and that thematic parks get very good ratings and good opinions from online reviewers. This information is expected to be a reference for developing the concept of thematic parks, especially in the city of Bandung, and it can be used by the government, architects, and urban designers to get a better understanding of the users’ perceptions and as a benchmark for similar projects.

Climate sensitive urban design is an important design approach to respond to a climate condition in an urban area which has an increasing temperature phenomenon. Temperature rise in an urban area will lead to urban heat island phenomenon which has an impact on outdoor thermal comfort. The proposed central business district master plan in Semarang has a high intensity of floor area ratio (FAR), thus it is at risk to encounter urban heat island. A design review with a climate sensitive urban design approach is needed to cope with the circumstance, anticipate microclimate issues and to achieve an outdoor thermal comfort condition within the master plan. The aim of this research is to carry out a design review with a climate sensitive urban design approach to assess the central business district master plan and ensure an outdoor thermal comfort condition. Design review uses an ex-ante evaluation time orientation. Ex-ante evaluation is an assessment of a program before it is implemented. This study is calculating numerical variables of microclimate such as air temperature, wind speed, relative humidity, and mean radiant temperature with ENVI-Met software to understand the outdoor thermal comfort based on the thermal comfort index which is PMV and PET.

Outdoor thermal comfort is an important indicator to create a quality and livable environment. This study examines a relationship between micro-meteorological and personal variables of outdoor thermal comfort conditions in an urban park. The data collection of outdoor thermal comfort is carried out using two methods in combination: micro-meteorological measurement and questionnaire survey. This finding shows that most of the respondents were comfortable with the thermal, wind, and humidity condition. The acceptability and satisfaction level of thermal comfort were positive. The most significant micro-meteorological variable for the physiologically equivalent temperature (PET) value is mean radiant temperature (Tmrt). As the Tmrt value is influenced by how much shading is produced from the presence of vegetation or buildings around the measurement location, this finding shows that the shadow was very important to the thermal comfort conditions in the Green Park Kitakyushu. The most influential micro-meteorological variable for the three different personal variables (TSV, WFSV, and HSV) is air temperature. The strongest relationship among the four variables is between TSV and PET. The findings will be the basis for the city authorities in preparing regional development plans, especially those related to the planning of city parks or tourist attractions.

Nowadays, Indonesia confronts urbanization, which raises many problems in the urban area, one of them is carbon emissions. Many researches have been done to address the issue of carbon emissions, TOD (Transit-Oriented Development) is one of them. This paper focuses entirely on how to develop the Transit-Oriented Development (TOD) design through low carbon city concepts in Indonesia. The concept of low-carbon cities is potentially implemented for high-energy efficiency in the areas of transport and housing will be able to reduce carbon footprint by decreasing trip frequencies, greater public transportation use for residents, increasing of walking level and higher accessibility. The city has to stimulate compact development with the high mobility movement of space in which space, building and infrastructure will be incorporated into a complex to authorise for living varied, commercial and social space to merge in environmentally sustainability. The development of a design strategy for the stakeholders is needed to develop and promote design ideas to optimise the spatial structure of cities. This paper aims to improve low carbon city model by adding integration between the urban spatial structure and land use to promote urban mixed, mobility, walkability, urban connectivity, and accessibility. These strategies will be used in a new development city in Palembang. Palembang is selected as representative of the rising megapolitan city in Indonesia where it still has capabilities for new spatial development planning to be improved the quality of life, well-planned new connectivity and sustainable cities. In this issue the TOD approach will be harmonized with the low carbon city concept.

In recent years, researchers in the architecture field have explored VR technology for various purposes in the architectural design process. Current efforts have supported the growing knowledge of VR utilization, specifically for the architectural design review process. In this study, we adapt the affordance concept from the ecological psychology study to add further evidence on VR utilization for the design review process. This study aims to develop an affordance-based design review method in architectural design by utilizing immersive VR technology. It sits at the crossroads of architecture design, virtual reality, and affordance research. This project aimed to create an affordance-based review method framework, a VR system to support the method, test both the method and the VR system, and assess the VR system’s effectiveness as a companion system for the affordance-based design method process. The study was conducted in the scope of architectural education settings only. It used a third-year architectural design studio course as a case. This study confirms that the affordance-based design review method using virtual reality helps students improve their design work. The method reveals the presence of positive and negative affordances in their work. It also shows the differences between a student and supervisor in perceiving the affordances for reviewing design works.

External shading devices are an important design feature in tropical buildings, particularly for climate mitigation. However, the interaction between the depth and elevation of the shading devices and their impact on indoor daylight performance is not fully understood, especially for the case of tropical buildings with bilateral openings. This study therefore aims to evaluate the design possibilities of external shading devices with various depth and elevation in terms of daylight performance for the case of tropical school classrooms with bilateral openings in an Indonesian city. A computational simulation method using Radiance is utilized to perform annual daylight metrics calculations. Geometry, material, and simulation settings are prepared using the Ladybug tool under Grasshopper for four building orientations, namely 0°, 45°, 90°, and 135°. Sensitivity and uncertainty analyses are conducted for all design combinations. The results show that the interaction between a shading device’s depth and elevation is unique, depending on the building orientation and the availability of direct sunlight. In general, shading elevation is more influential, compared to shading depth, on the observed daylight metrics and the combined objective functions at all orientations.

Optimisation of shading devices in buildings is a broadly investigated topic; however, most studies only focus on a single façade orientation, since the observed buildings are typically located in high latitude regions. However, in tropical regions, optimisation of all façade orientations is required due to the relatively high solar radiation and long sunshine duration. While adaptive shading devices are a promising solution, they are not without disadvantages, and as such a combination of adaptive shading devices and a fixed shading device shall be considered. This research therefore aims to design the optimum internal shading devices on four façade orientations of a high-rise office building in a tropical city, considering fixed and adaptive shading design options, and to determine the impact on annual daylight performance using computational modelling and simulation. The simulation is carried out under: (1) fixed design option, focusing on the numbers and width of slats; and (2) adaptive design option, focusing on the slat angle on various conditions. It is found that both sDA300/50% and ASE1000,250 are only influenced by the orientation. Under the fixed design option, the sDA300/50% and ASE1000,250 targets can be achieved only on the north and south façades, and accordingly the adaptive design option shall be implemented on the east and west façades. Overall, this study contributes to knowledge regarding the optimisation of shading devices in high-rise buildings in the tropics, considering the daylight admission from the four cardinal orientations.

•Aims to mitigate daylight exposure on objects in tropical daylit museum buildings.•Annual daylight modelling and simulation are performed to achieve the objective.•Morris sensitivity analysis and Mahalanobis distance classifier are conducted.•WWR and glazing transmissivity greatly influence the performance indicators.•New insights on optimal use of daylight to minimise risk in tropical museums. In museum design and operation, daylight is typically discouraged due to high risk of damaging the display objects. However, past studies in high-latitude regions have shown the possibility to apply daylight in museums, so long as it is carefully planned, and the display objects are not from the category of high responsive materials. In the tropical region, the influence of daylighting on light exposure on museum objects is still unknown. This study therefore aims to assess and mitigate the impact of annual daylight exposure on objects with low responsive materials in a tropical daylit museum building. Annual daylight modelling and simulation are performed to achieve the objective, followed with Morris sensitivity analysis and Mahalanobis distance classifier to optimise the outcome. It is found that either WWR or glazing transmissivity gives the greatest influence on the performance indicators. Based on the proposed optimisation algorithm, it is possible to determine the optimum solutions satisfying the performance indicators target, for a certain opening type. Overall, the contribution of this study is the proposed computational modelling and simulation methods to mitigate the exposure risk while optimising daylight as a renewable energy source. [Display omitted]