scholarly journals Simulation of thermal comfort on public space and buildings around river in Banjarmasin-Indonesia

2022 ◽  
Vol 1212 (1) ◽  
pp. 012008
Author(s):  
A Rahman

Abstract The climate and environmental aspects are one of the things that affect architectural products. The city as a gathering place that interacts for a particular purpose has influenced the shape and visual of the city. The density of buildings in a city has affected the urban microclimate. Urban get hotter than rural areas. Urban planners need to pay attention to several aspects related to the solution to the design of the humid tropics. The concept of greening the city evenly and thoroughly, so that the thermal is not too high that can affect comfort. In this research used Rhinoceros 5, Grasshopper, Ladybug, and ladybug for simulation and validation data of wet bulb temperature on a psychometric chart and CBE Thermal Comfort Tool from ASHRAE-55 standard. The purpose of this study used simulation is to facilitate and predict the thermal conditions of buildings and the environment. This application is also used by researchers and architect designers. Based on the simulation, the indoor maximum effective temperature and standard effective temperature are always uncomfortable zones. The building condition with wooden construction is higher of thermal comfort compared with concrete construction buildings and the wood construction is faster reaches maximum value compared to concrete construction.

2019 ◽  
Vol 46 (1) ◽  
pp. 67-78
Author(s):  
Septian Eka Prayoga ◽  
Arif Kusumawanto

Surface materials that turn into hard surface material and lack of vegetations are some of the effects of rapid development that can affect the micro climate in urban areas. This happened on Cik Ditiro corridor in the city of Yogyakarta which had quite dense activities, this was marked by various functions of land use and human activities throughout the day. The method is simulation method that uses the EnviMET 4.0 software and the empirical measurements. This method is to simulate the value of each climate variable in existing conditions and ideal conditions. The results of this research show that the condition of the Cik Ditiro corridor still belongs to the heat which is uncomfortable thermal conditions. Recommendations result of this research is to make better thermal comfort on corridor. The result of this research to give recommendations in terms of improving better for thermal comfort.


Agromet ◽  
2010 ◽  
Vol 24 (1) ◽  
pp. 14 ◽  
Author(s):  
Rendy Kurnia ◽  
Sobri Effendy ◽  
Laras Tursilowati

Housing development, well-planned or not well-planned, has changed urban view and its thermal environment. Many researchers have claimed that the worse quality of urban thermal environment is proportional to physical development of the city. Physical development in urban areas has caused various environmental problems, one of them is the change in quality of thermal environment by which the city becomes hotter than the surrounding areas. The purpose of this research was to identify thermal comfort either in classrooms at Darmaga or Baranangsiang campuses of Bogor Agricultural University. PMV (Predicted Mean Vote), using the boundary Effective Temperature (TE), THI (Temperature Humidity Index), and the last method is respondent test. PMVs (Predicted Mean Votes) in the classrooms at Baranangsiang campuses are thermally neutral to slightly warm, while that in classrooms in Darmaga campus are warmer. Effective Temperature which is resulted in the both of lecture halls are comfortable warm conditions. In addition, for respondents test, the thermal impression in IPB campus of Baranangsiang prefers to choose the slightly warm conditions, but for a lecture hall in campus of IPB Darmaga is more dominated by warm and slightly warm conditions. The questionnaire has been appropiated to the range of PMV index. So, the lecture halls that have been studied in both of campus can be concluded as slightly warm condition, because the thermal impressions felt by the respondents are also in the range of neutral to slightly . The value of THI for both of campus environment is in the range of moderate or neutral.Housing development, well-planned or not well-planned, has changed urban view and its thermal environment. Many researchers have claimed that the worse quality of urban thermal environment is proportional to physical development of the city. Physical development in urban areas has caused various environmental problems, one of them is the change in quality of thermal environment by which the city becomes hotter than the surrounding areas. The purpose of this research was to identify thermal comfort either in classrooms at Darmaga or Baranangsiang campuses of Bogor Agricultural University. PMV (Predicted Mean Vote), using the boundary Effective Temperature (TE), THI (Temperature Humidity Index), and the last method is respondent test. PMVs (Predicted Mean Votes) in the classrooms at Baranangsiang campuses are thermally neutral to slightly warm, while that in classrooms in Darmaga campus are warmer. Effective Temperature which is resulted in the both of lecture halls are comfortable warm conditions. In addition, for respondents test, the thermal impression in IPB campus of Baranangsiang prefers to choose the slightly warm conditions, but for a lecture hall in campus of IPB Darmaga is more dominated by warm and slightly warm conditions. The questionnaire has been appropiated to the range of PMV index. So, the lecture halls that have been studied in both of campus can be concluded as slightly warm condition, because the thermal impressions felt by the respondents are also in the range of neutral to slightly . The value of THI for both of campus environment is in the range of moderate or neutral.


2015 ◽  
Vol 7 (5) ◽  
pp. 939
Author(s):  
Juliete Baraúna dos Santos

Foram obtidas medidas das variáveis meteorológicas temperatura do ar, umidade relativa do ar e velocidade do vento através da estação automática instalada em Arapiraca com a finalidade de monitorar as condições de tempo no município em diferentes períodos (época chuvosa e seca). Sendo utilizado o índice de desconforto (ID), o índice de desconforto de Kawamura (IDK), índice da temperatura efetiva (TE) e o índice de temperatura efetiva em função do vento (TEV). Os valores mais elevados dos índices que foram registrados para o período chuvoso, foram do índice id com aproximadamente 2,5 °C acima dos valores observados da temperatura do ar (em média 26,5 °C), caracterizando crescente desconforto para os indivíduos locais.  Para o período seco não houve registros de grandes variações entre os respectivos índices. E assim como no período chuvoso, os valores mais elevados no período seco foram do índice id, indicando nesse período também forte desconforto. Os valores obtidos estiveram condizentes com a literatura, sendo a sensação térmica mais preponderante durante o inverno. E, de acordo com as variações, em todo período de estudo (05 de maio de 2008 a 05 de maio de 2011) a população foi submetida aos alertas de atenção e muito cuidado, situação esta que pôde provocar fadiga ou cãibras, esgotamento e insolação nos casos de exposição prolongada e atividade física.      A B S T R A C T Measurements of meteorological variables air temperature, relative humidity and wind speed by automatic station installed in Arapiraca in order to monitor the weather conditions in the city in different periods (dry and rainy season) were obtained. Being used the discomfort index (ID), the discomfort index of Kawamura (IDK), index of effective temperature (TE) and the index of effective temperature as a function of wind (TEv). Higher index values ​​that were recorded for the rainy season, the index id were approximately 2.5 ° C above the observed values ​​of air temperature (average 26.5 ° C), indicating increasing discomfort for local individuals . For the dry period there were no reports of large variations between the respective indices. And just as the rainy season, the highest values ​​in the dry season were the index id, indicating that period also strong discomfort. The values ​​obtained were consistent with the literature, the most predominant wind chill during the winter. And, according to the variations in the study period (May 5, 2008 to 05 maio 2011) the population was subjected to warnings of attention and care, a situation that could cause fatigue or cramps, exhaustion and heat stroke in cases of prolonged exposure and physical activity.   Key-Words: Urban climate. Thermal comfort Human. Bioclimatic


2019 ◽  
Author(s):  
Hassan Taghvaei Seyed ◽  
Mansoureh Tahbaz ◽  
Samaneh Mottaghi Pishe

Since the advent of modern methods and new constructional approaches in architecture and landscape architecture, traditional architecture techniques which were based on utilizing natural energies have been completely set aside. In this case, the art of Iranian gardening has a great deal of valuable achievements and experiences which need to be reconsidered. Owing to its special geographic situation, the city of Shiraz includes a number of globally well-known gardens such as Eram, Jahannama, and Delgosha garden. As long as Persian gardens are considered as important parts of open and green spaces and urban landscapes in cities, the main purpose of this paper is the study of their structural features along with the role they play in improving environmental quality and comfort conditions. From this point of view in Landscape architecture, a quantitative-qualitative study was performed for the first time based on two distinct samples of Persian garden, Jahannama and Delgosha, to evaluate the thermal conditions of the garden's microclimate compared with the local climate and surrounding urban environment in extreme summer heat as well as intense winter cold. In this research, the latest assessment index of the open space thermal condition named the universal thermal climate index (UTCI) has been employed to evaluate the obtained data on January 24th and 25th of 2013 and July 31th and August 4th of 2014. Field data has been collected by mobile weather forecast facilities capable of recording temperature, humidity, wind, air pressure, and radiation temperature on the pre-set grid in both gardens. Final results obtained by extracting data from meteorological stations and the achieved data indicated that the structural features of the samples can highly mitigate the microclimate condition against local climate as well as short-term and long-term climate of the city. So, the main achievement of the present study is determining the role of Persian garden in improving the quality of microclimate and local climate as well as investigating the role of garden's components in enhancing thermal comfort conditions inside it.


NALARs ◽  
2017 ◽  
Vol 16 (1) ◽  
pp. 15 ◽  
Author(s):  
Laksmi Widyawati

ABSTRAK. Ruang publik kota dibutuhkan warga kota  untuk berkumpul  tanpa perbedaan. Pada kota lama bekas kerajaan di Jawa seperti Yogyakarta,tata ruang kotanya mengikuti makna filosofi yang dipercaya pada masanya, dan memiliki alun-alun yang berkembang menjadi ruang publik. Meskipun pengertian ruang publik di sini berbeda dengan ruang publik di Eropa, namun sebagai tempat berkumpul cukup menarik. Alun-alun Selatan Kraton Yogyakarta saat ini begitu hidup berkembang sebagai ruang publik terutama setiap malam dengan berbagai kegiatan menarik. Perubahan pemaknaan terjadi seiring perkembangan jaman. Berangkat dari anggapan awal saya tentang perubahan fungsi dan makna alun-alun, di lapangan saya memperoleh temuan bahwa kerelaan pihak kraton memberikan halamannnya untuk rakyat adalah faktor utama terbentuknya ruang publik di alun-alun. Di lapangan saya juga menemukan berbagai makna yang bisa dibaca dari tanda, yang bisa dimaknai sebagai semiotik alun-alun. Penelitian saya memiliki dua arah, kajian sejarah sebagai tolok ukur perkembangan fungsi dan makna, serta proses lapangan menekankan pada eksplorasi aktor-aktor yang terlibat di alun-alun selatan, dengan mengacu Actor Network Theoryserta Semiotik untuk memahami terbentuknya  makna bagi pemilik dan pengguna, yang bisa berubah pada kurun waktu yang berbeda. Kata Kunci: alun-alun, ruang publik, makna, semiotik ABSTRACT.  Public space needed to gather citizens without distinction. In the old town of the former kingdom in Java such as Yogyakarta, the city follows the spatial meaning of the philosophy that believed in his time, and had the square developed into a public space. Although the notions of public space here is different from the public space in Europe, but as a gathering place quite interesting. South Alun-Alun Kraton Yogyakarta today so thrive as a public space, especially every night with a variety of interesting activities. Changes of meaning occurs over the development period. Departing from my initial assumptions about changes in the function and meaning of the square, on the ground I gained the finding that the willingness of the parties the court gives halamannnya for the people is a major factor in the formation of a public space of the square. On the field, I also found a variety of meanings that can be read from the signs, which could be interpreted as a semiotic alun-alun My research has two directions, the study of history as a benchmark the development of the function and meaning, as well as the pitch emphasis on exploration of the actors involved in the  south Alun-Alun, with reference Actor Network Theory and Semiotics to understand the formation of meaning for owners and users, which may change at different times.  Keywords: square, public space, , meaning, semiotic


2018 ◽  
Vol 62 (2) ◽  
pp. 30-48 ◽  
Author(s):  
Nathan Dobson

Abstract:This article documents some of the forms of sociality engendered by the massive and growing presence of private security guards around Nairobi, Kenya. A focus on violence and the logic of an ideal of the use of violence in critical security studies literature obfuscates these networks in a similar way to idealizations of public space and the public sphere in anthropological literature on private security and residential enclaves. By looking at the close ties guards maintain with their homes in rural areas of Nairobi and the associations they make with people such as hawkers, it becomes clear that their presence in the city is creating new sets of valuations and obligations all the time. These forms of sociality are not galvanized by the threat of violence that the guards evoke; rather, they are engendered alongside and at cross-currents to the idealized, securitized landscape.


Author(s):  
Débora Adiane Borges ◽  
Ed Carlo Rosa Paiva ◽  
Antover Panazzolo Sarmento ◽  
André Alves de Resende

RESUMO: Este trabalho objetivou analisar as condições térmicas dos blocos didáticos da Universidade Federal de Goiás, Regional Catalão. O conforto térmico foi avaliado pela ISO 7730 (ISO, 2005) por meio dos índices PMV e PPD e das prescrições da NR 17 (BRASIL, 1978), enquanto o estresse térmico foi avaliado pelo valor máximo do IBUTG conforme a NR 15 (BRASIL, 1978) e a NHO 06 (BRASIL, 2002). As medições foram realizadas na sala 301 do Bloco Didático 1 (BD1) utilizando-se um medidor de estresse térmico para medir o IBUTG e as temperaturas de bulbo seco, bulbo úmido e globo, usadas para determinar a temperatura efetiva e os índices PMV e PPD com o auxílio dos programas Grapsi v. 5.1 e Ladesys v. 1.0. A sala foi considerada desconfortável por calor principalmente na primavera e verão, enquanto no outono e inverno houve dias confortáveis para ela desocupada, sem garantir que permaneceria confortável quando cheia de alunos. Possíveis soluções para o problema seria a colocação de brises na fachada esquerda do BD1, arborização e instalação de climatizadores. As contribuições deste trabalho envolveram a análise do desconforto térmico em uma instituição de ensino e os possíveis impactos na produtividade, motivação por mais pesquisas na área e a citação de estratégias para amenizar o desconforto térmico. ABSTRACT: This study aimed to analyze the thermal conditions of the Education Center at the Federal University of Goiás, Regional Catalão. Thermal comfort was evaluated by ISO 7730 (ISO 2005) through of PMV and PPD indexes and the requirements of NR 17 (BRAZIL, 1978), while the thermal stress was evaluated by the WBGT maximum value according to NR 15 (BRAZIL, 1978 ) and NHO 06 (BRAZIL, 2002). Measurements were performed at classroom 301 of the Education Center 1 using a thermal stress meter to measure the WBGT and dry bulb temperature, wet bulb and globe, used to determine the effective temperature and PMV and PPD indexes with the help of programs Grapsi v. 5.1 and Ladesys v. 1.0. The classroom was considered uncomfortable for heat mainly in spring and summer, while in autumn and winter there were comfortable days to empty classroom, without to ensure that it remained comfortable in the classroom full of students. Possible solutions to the problem would be put solar protections in the left side of the Education Center I, forestation and air conditioners installation. The contributions of this work involved the analysis of thermal discomfort in an educational institution and the possible impacts on productivity, motivation for further research in the area and the citation of strategies to mitigate the thermal discomfort.


2017 ◽  
Vol 32 (4) ◽  
pp. 555-563 ◽  
Author(s):  
Pedro Vieira de Azevedo ◽  
Péricles Tadeu da Costa Bezerra ◽  
Mario de Miranda Vilas Boas Ramos Leitão ◽  
Carlos Antonio Costa dos Santos

Abstract This study evaluated the thermal conditions of urban areas in Petrolina-PE, from continuous data collected in urban and rural areas for the year of 2012. The results characterized urban heat islands (UHI) with varying intensity in urban areas, especially UHI = 5.3 °C (high intensity) occurred on April 28, 2012. It was evident that the constituent elements of urban areas contribute to the formation and expansion of UHI bringing thermal discomfort for its inhabitants. An adaptation to Thom’s equation for calculating the Thermal Discomfort Index (DIT), was used to obtain the maximum (DITx) and minimum (DITm) thermal discomfort. In the urban area, the DITm indicated thermal comfort in 23.0% of the days and partial comfort in 77.0% of days surveyed. Already, the DITx characterized 71.6% of days with partial comfort and 28.4% of days with thermal discomfort. In the rural area, The DITm indicated that 41.5% of days were thermally comfortable and 58.5% of days had partial comfort. However, the DITx pointed 87.7% of the days of this environment with partial thermal comfort and 12.3% of thermally uncomfortable days. Finally, the results showed that afforestation of urban area constitutes to an effective and efficient way to mitigate thermal discomfort.


2017 ◽  
Vol 41 (4) ◽  
pp. 253-259 ◽  
Author(s):  
Asri A. MUHAMMAD ◽  
Firdawaty MARASABESSY ◽  
Arif KUSUMAWANTO ◽  
Ardhya NARESWARI

Crowded city will be impact to the temperature of urban areas. This condition is commonly known as the urban heat island effect. It’s impact to the activity that happened in the urban space. Recently, Fort Oranje (urban space/square) that has history value has been revitalized as an urban public space that is crowd visited by Ternate’s people. Therefore, the thermal comfort becomes an important thing and that is available to the users. The research is aim to know the influence of space configuration change to the aspect of thermal comfort in the urban public space. The method that is used in this research is empirical measurement and simulation method using Envi-MET software. This method is used to simulate the condition of thermal area in Fort Oranje. The result of this research showed that space configuration that change before and after the development of Ternate waterfront city impact to the thermal conditions in Fort Oranje public space.


2020 ◽  
Vol 29 (3) ◽  
pp. 51-65
Author(s):  
Збигниев Шмыт

Citation: Szmyt Z. (2020) Shamanism in a Post-socialist City. Mir Rossii, vol. 29, no 3, pp. 51–65. DOI: 10.17323/1811-038X-2020-29-3-51-65 This article focuses on shamanic placemaking and the struggles for public space in the Siberian city of Ulan-Ude. Special attention is given to the indigenization of the city, which is a result of the mass immigration of Buryats from rural areas and the decay of the Soviet urbanization model. The article investigates how contemporary shamanism is involved in the decolonization of the urban space, new temporalization, and indigenous placemaking. Instead of dealing with traditional shamanist mediation between spirits and people, the emphasis is on mediation between the idea of ethnicity and the urban space.


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