This research investigates a syntactical study and comparative analysis of the statistical and spatial characteristics of traditional houses in an urban kampung settlement,focusing on a selected case study built by a ...This research investigates a syntactical study and comparative analysis of the statistical and spatial characteristics of traditional houses in an urban kampung settlement,focusing on a selected case study built by a participatory Arabic community in Palembang,South Sumatra,Indonesia.This research aims to determine a formal rule basis for spatial confgurations to reveal identical sociospatial structures based on syntactical analysis.This experiment measures spatial layout variation through space syntax analysis to provide a better understand of how the correlation between spatial confguration and sociospatial structures in traditional houses can be deconstructed.This syntactical analysis applies four distinctive procedures:a selected case study,data collection,statistical and graphical analysis,and graph analysis.The results indicate that the spatiality of all traditional houses in this kampung settlement highlights the spatial hierarchy order as a formal rule-based system,and approximately an average of 10%of this community is concerned with designing intelligible layouts.Rumah Batu and other dwellings have a similarity and closeness.The main dwelling’s function involves more steps to separate public and private functional rooms,but a functional transformation from a dwelling into a public facility creates a short distance for easy access by users.Additionally,this separation afects occupants,especially in terms of spatial distribution activities,movement fows,and other social phenomena.This approach provides practical and tangible benefts for preservation values related to buildings;this strategy may also change how buildings are perceived in other built environments.展开更多
Building-Integrated Photovoltaic(BIPV)on vertical façades is a potential PV application in today’s buildings.The performance of BIPV on façades is significantly influenced by the façade orientation.For...Building-Integrated Photovoltaic(BIPV)on vertical façades is a potential PV application in today’s buildings.The performance of BIPV on façades is significantly influenced by the façade orientation.For tropical cities,the optimum façade orientation,in terms of maximum energy yield and daylight performance,cannot be simply determined,due to relatively symmetrical sun path throughout the day.This study therefore aims to determine the optimum orientation for BIPV on tropical building façades.To achieve the objective,experiment,modelling,and computational simulation are conducted to evaluate the BIPV energy yield and to predict the indoor daylight performance in a scale-model building with a 105Wp monocrystalline silicon PV,facing each cardinal orienta-tion in Bandung,Indonesia.The South orientation yields practically zero ASE_(1000,250),providing the best annual daylight performance,and yielding the most desirable value in four out of five daylight metrics.The greatest annual energy yield is at the North orientation,providing 179-186 kWh(95%prediction interval)per year,but with larger uncertainty compared to that at the South,due to direct sunlight occurrence.Based on three different objective functions,the South orientation is considered optimum for placing the BIPV panel on the prototype façade in the location.展开更多
In lighting design,mean room surface exitance(MRSE)has been known as an indicator of the adequacy of illumination in an indoor space.Recent studies have suggested an exponential model relating MRSE and the observer’s...In lighting design,mean room surface exitance(MRSE)has been known as an indicator of the adequacy of illumination in an indoor space.Recent studies have suggested an exponential model relating MRSE and the observer’s retinal response.This is particularly applicable in a room with homogenous room surface reflectance and a constant total corneal illuminance,which is the total illuminance received at the eye.However,accuracy of the exponential model is yet to be assessed in detail.Furthermore,the implication on interior lighting design is also yet to be quantified.This study thus aims to assess the accuracy of the exponential model and to optimise the output variables.Random computations using Monte Carlo simulation are performed for various input variables,followed with sensitivity and uncertainty analyses and optimisation.Prediction errors of the exponential model are found between-10%and 6%.The MRSE is highly influenced by surface reflectance,whereas the total corneal illuminance is influenced by the source luminous flux.Optimum design parameters are obtained by minimising the ratio between total corneal illuminance and MRSE.Overall,this study provides guidelines in lighting design practice for enhancing room spatial brightness while minimising energy use.展开更多
基金supported by the Ministry of Education,Culture,Research and Technology of the Republic of Indonesia through Hibah Mandiri ITERA 2023 Grant numbers 631an/IT9.2.1/PT.01.03/2023 under LPPM-Institut Teknologi Sumatera。
文摘This research investigates a syntactical study and comparative analysis of the statistical and spatial characteristics of traditional houses in an urban kampung settlement,focusing on a selected case study built by a participatory Arabic community in Palembang,South Sumatra,Indonesia.This research aims to determine a formal rule basis for spatial confgurations to reveal identical sociospatial structures based on syntactical analysis.This experiment measures spatial layout variation through space syntax analysis to provide a better understand of how the correlation between spatial confguration and sociospatial structures in traditional houses can be deconstructed.This syntactical analysis applies four distinctive procedures:a selected case study,data collection,statistical and graphical analysis,and graph analysis.The results indicate that the spatiality of all traditional houses in this kampung settlement highlights the spatial hierarchy order as a formal rule-based system,and approximately an average of 10%of this community is concerned with designing intelligible layouts.Rumah Batu and other dwellings have a similarity and closeness.The main dwelling’s function involves more steps to separate public and private functional rooms,but a functional transformation from a dwelling into a public facility creates a short distance for easy access by users.Additionally,this separation afects occupants,especially in terms of spatial distribution activities,movement fows,and other social phenomena.This approach provides practical and tangible benefts for preservation values related to buildings;this strategy may also change how buildings are perceived in other built environments.
基金supported by the Ministry of Education,Culture,Research,and Technology of the Republic of Indonesia,through the In-donesia Collaboration Research Program(RKI)2022.
文摘Building-Integrated Photovoltaic(BIPV)on vertical façades is a potential PV application in today’s buildings.The performance of BIPV on façades is significantly influenced by the façade orientation.For tropical cities,the optimum façade orientation,in terms of maximum energy yield and daylight performance,cannot be simply determined,due to relatively symmetrical sun path throughout the day.This study therefore aims to determine the optimum orientation for BIPV on tropical building façades.To achieve the objective,experiment,modelling,and computational simulation are conducted to evaluate the BIPV energy yield and to predict the indoor daylight performance in a scale-model building with a 105Wp monocrystalline silicon PV,facing each cardinal orienta-tion in Bandung,Indonesia.The South orientation yields practically zero ASE_(1000,250),providing the best annual daylight performance,and yielding the most desirable value in four out of five daylight metrics.The greatest annual energy yield is at the North orientation,providing 179-186 kWh(95%prediction interval)per year,but with larger uncertainty compared to that at the South,due to direct sunlight occurrence.Based on three different objective functions,the South orientation is considered optimum for placing the BIPV panel on the prototype façade in the location.
基金funded by the Ministry of Education,Culture,Research,and Technology of the Republic of Indonesia,under grant number 317/UN40.LP/PT.01.03/2021,under LPPM Universitas Pendidikan Indonesia(UPI).
文摘In lighting design,mean room surface exitance(MRSE)has been known as an indicator of the adequacy of illumination in an indoor space.Recent studies have suggested an exponential model relating MRSE and the observer’s retinal response.This is particularly applicable in a room with homogenous room surface reflectance and a constant total corneal illuminance,which is the total illuminance received at the eye.However,accuracy of the exponential model is yet to be assessed in detail.Furthermore,the implication on interior lighting design is also yet to be quantified.This study thus aims to assess the accuracy of the exponential model and to optimise the output variables.Random computations using Monte Carlo simulation are performed for various input variables,followed with sensitivity and uncertainty analyses and optimisation.Prediction errors of the exponential model are found between-10%and 6%.The MRSE is highly influenced by surface reflectance,whereas the total corneal illuminance is influenced by the source luminous flux.Optimum design parameters are obtained by minimising the ratio between total corneal illuminance and MRSE.Overall,this study provides guidelines in lighting design practice for enhancing room spatial brightness while minimising energy use.
