scholarly journals STRATEGI KENYAMANAN TERMAL MASJID AL-KAUTSAR KERTONATAN, KARTASURA, SUKOHARJO

2021 ◽  
Vol 8 (2) ◽  
pp. 98
Author(s):  
Nur Rahmawati Syamsiyah ◽  
Hanifa Nur Izzati
Keyword(s):  
Wind Speed ◽  
Thermal Comfort ◽  
Air Temperature ◽  
Quantitative Methods ◽  
Natural Ventilation ◽  
Subjective Evaluation ◽  
Circulation System ◽  
High Humidity ◽  
Thermal Measurements ◽  
Air Circulation

Iklim tropis lembab di Indonesia menyebabkan rendahnya kecepatan angin, serta kelembapan dan suhu udara yang tinggi. Kelembapan tinggi menyebabkan sirkulasi udara tidak lancar dan berpengaruh pada kenyamanan termal. Masjid adalah bangunan untuk kegiatan ibadah, yang menuntut kenyamanan termal, selain kenyamanan audial. Upaya alat bantu penghawaan seperti kipas angin tidak akan bekerja optimal jika masjid tidak memiliki sistem sirkulasi udara yang baik. Masjid Al-Kautsar Kertonatan menarik untuk diteliti dari aspek penghawaan alami. Masjid berada di sudut pertigaan jalan kampung dan menghadap area persawahan. Saat masjid digunakan seluruh kipas angin dinyalakan, namun keluhan jamaah selalu muncul yaitu ketidaknyamanan termal, seperti rasa panas. Penelitian ini bertujuan untuk mengidentifikasi kualitas termal masjid Al-Kautsar Kertonatan, melalui metode kuantitatif pengukuran suhu udara, kelembapan udara dan kecepatan angin dengan alat thermohygrometer dan anemometer. Pengukuran termal dilakukan di dalam dan di luar ruang masjid secara bersamaan pada lima waktu salat. Selain pengukuran termal, dilakukan pula wawancara bebas kepada jamaah terkait kenyamanan termal. Hasil penelitian mengindikasikan pola aliran udara tidak merata dan tidak lancar di dalam ruangan, sehingga kualitas termal dalam kategori tidak nyaman dengan suhu udara rata-rata 31.0°C dan kecepatan angin rata-rata 0.1m/detik. Evaluasi subjektif mengindikasikan bahwa jamaah merasa nyaman apabila berada dekat jendela atau berada di tengah-tengah ruang, karena pada bagian itu aliran udara terasa. Solusi terbaik agar aliran merata di dalam ruang adalah redesain bukaan agar udara lebih banyak masuk, di samping itu perlu adanya penambahan vegetasi. MOSQUE THERMAL COMFORT STRATEGY (CASE STUDY OF AL-KAUTSAR MOSQUE, SUKOHARJO, CENTRAL JAVA) Indonesia's humid tropical climate causes low wind speed, as well as high humidity and air temperature. High humidity causes poor air circulation and affects thermal comfort. A mosque is a building for worship activities, which demands thermal comfort, in addition to audible comfort. Efforts for ventilation aids such as fans will not work optimally if the mosque does not have a good air circulation system. Al-Kautsar Kertonatan Mosque is interesting to study from the aspect of natural ventilation. The mosque is at the corner of the village road fork and overlooks the rice fields. When the mosque is used, all the fans are turned on, but complaints from the congregation always arise, namely thermal discomfort, such as feeling hot. This study aims to identify the thermal quality of the Al-Kautsar Kertonatan Mosque, through quantitative methods of measuring air temperature, humidity, and wind speed using thermohygrometer and anemometer. Thermal measurements are carried out inside and outside the mosque space simultaneously at five prayer times. In addition to thermal measurements, freed interviews were also conducted with the congregation regarding thermal comfort. The results indicate that the airflow pattern is not evenly distributed and not smooth so that the thermal quality is in the uncomfortable category with an average air temperature of 31.0°C and an average wind speed of 0.1m/second. The subjective evaluation indicated that pilgrims felt comfortable when they were near the window or in the middle of the room because in that part the airflow was felt. The best solution so that the flow is evenly distributed in the room is to redesign the opening to allow more air to enter, in addition to the need for additional vegetation.

Optimal Minimum Airflow for Air Circulation of Single-Duct VAV Terminal Boxes

2008 ◽  
Author(s):  
Young-Hum Cho ◽  
Mingsheng Liu
Keyword(s):  
Thermal Comfort ◽  
Air Temperature ◽  
Thermal Discomfort ◽  
Variable Air Volume ◽  
Air Handling Unit ◽  
Optimal Value ◽  
Computational Fluid Dynamics Simulations ◽  
Dynamics Simulations ◽  
Air Circulation ◽  
The Impact

Thermal comfort in an area is directly controlled by terminal boxes in variable air volume (VAV) air-handling unit (AHU) systems. The terminal box either modulates airflow or adjusts the discharge air temperature. Reduced air circulation will cause thermal discomfort in a conditioned space if the airflow and discharge air temperature are not suitable. The objective of this study is to identify an optimal value for airflow and discharge air temperature that will maintain room thermal comfort. Optimal room airflow and discharge air temperature is analyzed, and the impact of room airflow and discharge air temperature on thermal stratification is verified through CFD (Computational Fluid Dynamics) simulations.

Towards Pedestrian Microclimatic Comfort: A Rapid Predication Model for Street Winds and Pedestrian Thermal Sensation

Nano LIFE ◽  
2018 ◽  
Vol 08 (02) ◽  
pp. 1840006
Author(s):  
Jing Li ◽  
Mengnan Qi ◽  
Qiuhua Duan ◽  
Lei Huo ◽  
Julian Wang
Keyword(s):  
Wind Speed ◽  
Built Environment ◽  
Thermal Comfort ◽  
Air Temperature ◽  
Goodness Of Fit ◽  
Comfort Level ◽  
Outdoor Thermal Comfort ◽  
Design Parameters ◽  
Rapid Urbanization ◽  
The Impact

Significant changes in the urban built environment have occurred due to rapid urbanization and increases in the urban population. Such alterations may produce environmental health-related issues such as urban heat stress, air pollution and traffic noise. This research undertook a field study to collect data including urban design parameters, micro-environmental factors and city climatic information. This work was conducted over a two-year period on three pedestrian streets located in high-density urban areas in Beijing. These areas were selected in order to study the influences of urban street canyon texture within a particular geometric layout, wind flow corridors and variations in air temperature on pedestrian microclimatic comfort. The results will facilitate the work of urban planners by providing them with information for use in improving outdoor thermal comfort through their designs. A total of 60[Formula: see text]485 samples were organized into training, validation and test sets. We confirmed our hypothesis that internal wind speed ([Formula: see text] is attributable mainly to the urban texture coefficient ([Formula: see text], air temperature ([Formula: see text] and leading-in wind speed ([Formula: see text]. The model was tested using the test data collected onsite, which demonstrated a very accurate goodness-of-fit; the model achieved an R-squared value of 0.82, which meant that [Formula: see text] as a dependent variable was 82% correlated to the three predictors as independent variables. With this computer simulation, urban planners can now predict and visualize the impact of changes on the built environment in terms of either the direction of solar radiation received or increases in wind speed, in return for the desired thermal comfort level for residents of the neighborhood.

scholarly journals PENGARUH BUKAAN SAMPING (CLERESTORY) TERHADAP KUALITAS KENYAMANAN TERMAL PADA FOOD CARNIVAL, MALL AEON BSD

Vitruvian ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 47
Author(s):  
Tathia Edra Swasti
Keyword(s):  
Wind Speed ◽  
Thermal Comfort ◽  
Air Temperature ◽  
Effective Temperature ◽  
Air Humidity ◽  
Air Velocity ◽  
Predicted Mean Vote ◽  
Air Speed ◽  
The Right

ABSTRAK Mall saat ini marak menggunakan clerestory sebagai salah satu upaya untuk penerangan alami pada siang hari. Namun, cahaya matahari pada sore hari (barat) akan menghasilkan cahaya matahari yang lebih panas dan silau dibandingkan cahaya matahari pada pagi hari (timur). Oleh karena itu, dengan pemakaian clerestory yang cukup besar pada bangunan, masalah panas tentu tak dapat dihindari. Begitu pula dengan glare yang berasal dari pantulan sinar matahari. Salah satu Mall yang menggunakan clerestory adalah Mall AEON BSD. Pengukuran suhu udara, temperatur efektif, kelembaban udara, kecepatan angin, PMV (Predicted Mean Vote) dan PPD (Predicted Percentage of Dissatisfied) dilaksanakan pada 4 waktu dengan 5 lokasi titik ukur yang memiliki kondisi berbeda untuk membuktikan bahwa clerestory dapat mempengaruhi kenyamanan termal. Disimpulkan bahwa titik 2 yaitu titik yang berdekatan dengan clerestory sisi kanan (ukurannya lebih kecil daripada clerestory sisi kiri) memiliki temperatur efektif dan kelembaban udara yang lebih rendah dari titik lain, dan kecepatan udara (dipengaruhi oleh hembusan AC) lebih tinggi dari titik lain. Responden merasa nyaman saat berada di titik tersebut.Titik paling nyaman menurut responden adalah titik 2 dengan TE rata-rata berkisar 27,4˚C, kelembaban udara rata-rata berkisar 52,2%, kecepatan udara rata-rata berkisar 0,15 m/s, PMV berkisar 0,5 dan PPD berkisar 12,7%. Dengan begitu semakin kecil ukuran skylight terbukti mempengaruhi kenyamanan termal dan membuat kenyamanan termal dapat tercapai. Kata Kunci: Mall, Clerestory, PMV, PPD, Kenyamanan Termal ABSTRACT Nowadays mall is decorated with clerestory as an effort to lighten naturally during the day. However, sunlight in the afternoon (west) will produce more sunlight and glare than sunlight in the morning (east). Therefore, with the use of a fairly large clerestory in buildings, the problem of heat certainly can not be avoided. Similarly, glare that comes from the reflection of sunlight. One of the malls that use clerestory is BSD AEON Mall. Measurement of air temperature, effective temperature, air humidity, wind speed, PMV (Predicted Mean Vote) and PPD (Predicted Percentage of Dissatisfied) carried out at 4 times within 5 measuring spots that have different conditions, proving that clerestory can affect thermal comfort. It was concluded that point 2, which is the point adjacent to the right side clerestory (smaller in size than the left side clerestory) has an effective temperature and lower air humidity than other points, and air velocity (affected by blowing AC) is higher than other points. Respondents felt comfortable when they were at that point. The most comfortable point according to respondents was point 2 with TE averaging around 27.4˚C, air humidity averaged 52.2%, the average air speed ranged from 0.15 m / s, PMV ranges from 0.5 and PPD ranges from 12.7%. Thus, the smaller size of the clerestory is affecting thermal comfort and thermal comfort can be achieved. Keywords: Mall, Clerestory, PMV, PPD, Thermal Comfort

scholarly journals KONDISI TERMAL PADA PENGHAWAAN ALAMI DI RUANG TUNGGU UTAMA STASIUN SEMARANG TAWANG

2018 ◽  
Vol 2 (3) ◽  
pp. 144
Author(s):  
Hana Faza Surya Rusyda ◽  
Erni Setyowati ◽  
Gagoek Hardiman
Keyword(s):  
Thermal Comfort ◽  
Air Temperature ◽  
Research Method ◽  
Thermal Condition ◽  
Natural Ventilation ◽  
Thermal Conditions ◽  
Field Measurements ◽  
Waiting Room ◽  
Train Station ◽  
State Of Mind

Abstract:. Thermal comfort is a state of mind that expresses a user's satisfaction with thermal conditions. This study focuses on the design of natural ventilation which is one of the efforts to reduce the heat that exists in the building, especially in maintaining the thermal conditions. Tawang Train Station, Semarang has a natural ventilation design that is still maintained especially in the waiting room. This study aims to determine the thermal conditions of the design of ventilation using the theory of Mom and Wiseborn, SNI 03-6572-2001, and Olgyay chart. This research method uses quantitative and field measurements were done for 14 hours to know the movement of air, temperature, humidity. The results were then compared with the standard and the theory. It was found that thermal comfort conditions that still utilize the movement of the wind from natural ventilation in the main waiting room of Tawang Semarang Station.Keyword: Thermal Condition, Natural Ventilation, Semarang Tawang Station.Abstrak: Kenyamanan termal merupakan suatu kondisi pikir seseorang yang mengekspresikan kepuasan pengguna terhadap kondisi termal.  Penelitian ini berfokus pada desain penghawaan yang merupakan salah satu upaya mengurangi panas yang ada dalam bangunan terutama dalam menjaga kondisi termal. Stasiun Tawang Semarang, mempunyai desain penghawaan alami yang masih dipertahannkan terutama pada ruang tungguya. Penelitian ini  bertujuan untuk mengetahui kondisi termal dari desain penghawaan dengan menggunakan teori mom dan wiseborn, SNI 03-6572-2001, serta grafik olgyay. Metode penelitian ini menggunakan kuantitatif dan pengukuran dilapangan dilakukan selama 14 jam untuk mengetahui pergerakan udara, temperature, kelembaban. Hasil penelitian kemudian di bandingkan dengan standar SNI, Mom & Wiseborn dan Diagram Olgyay. Ditemukan bahwa kondisi kenyamanan termal yang masih memanfaatkan pergerakan angin dari ventilasi alami pada ruang tunggu utama Stasiun Semarang Tawang.Kata Kunci: Kondisi Termal, Ventilasi Alami, Ruang tunggu, Stasiun Semarang Tawang

scholarly journals PENGARUH TATA RUANG PADA PENGHAWAAN ALAMI RUMAH VERNAKULAR MELAYU PONTIANAK

2019 ◽  
Vol 6 (1) ◽  
pp. 53
Author(s):  
Tri Wibowo Caesariadi
Keyword(s):  
New York ◽  
Wind Speed ◽  
Thermal Comfort ◽  
Earthquake Engineering ◽  
Natural Ventilation ◽  
Building Materials ◽  
Spatial Arrangement ◽  
Spatial Layout ◽  
Indoor Space ◽  
Vernacular House

Arsitektur vernakular adalah arsitektur yang memiliki respon yang baik terhadap iklim setempat. Hal ini juga berpengaruh terhadap kenyamanan termal dalam bangunan. Sebagai kota yang memiliki iklim tropis lembab, kenyamanan termal bangunan di Kota Pontianak banyak ditentukan oleh pergerakan angin yang terjadi di dalam bangunan. Adaptasi terhadap iklim pada rumah vernakular melayu Pontianak tidak hanya pada penggunaan elemen bangunan seperti bukaan dan bahan bangunan, juga pada tata ruang yang khas, di antaranya terdapat teras, ruang tengah serta pelataran belakang yang memisahkan rumah induk dengan rumah anak. Tujuan penelitian adalah melihat apakah tata ruang ini berpengaruh terhadap penghawaan alami di ruang dalam. Penelitian dilakukan dengan pengukuran di lapangan terhadap variabel kenyamanan termal, terutama temperatur dan kelajuan angin. Kemudian hasil pengukuran dianalisis secara deskriptif kuantitatif dan dilihat hubungan antara variabel dengan tata ruang, yaitu bagaimana temperatur dan kelajuan angin yang berbeda terjadi di setiap ruang, sehingga dapat ditarik kesimpulan. Hasil penelitian menunjukkan bahwa tata ruang di rumah vernakular melayu Pontianak, yaitu hadirnya teras dan pelataran belakang turut berperan dalam penghawaan alami yang terjadi di ruang dalam. Teras berperan dalam menurunkan temperatur luar yang masuk ke dalam bangunan (30,74 °C di ruang luar, lalu 29,84 °C di teras depan, dan 29,09 °C di ruang dalam). Pelataran belakang serta tata ruang dalam memberikan pergerakan angin yang lebih baik, ditunjukkan dengan selisih yang kecil antara kelajuan angin di ruang dalam dengan ruang luar pada rumah dengan pelataran belakang (0,51 m/s) dibandingkan dengan rumah tanpa pelataran belakang (0,77 m/s).Kata-kata Kunci: penghawaan alami, vernakular, tata ruangEFFECT OF SPACE LAYOUT TO NATURAL VENTILATION IN MELAYU PONTIANAK VERNACULAR HOUSEVernacular architecture is architecture that has good response to local climate. This also affects the thermal comfort in the building. As a city that has a humid tropical climate, the thermal comfort of buildings in Kota Pontianak is largely determined by the movement of the wind that occurs inside the building. Adaptation to climate in Pontianak's melayu vernacular house is not only on the use of building elements such as openings and building materials, but also on the typical spatial layout, including a terrace, a central room and a back veranda that separates the main house from the secondary house. The aim of the study was to see whether this spatial arrangement has an effect on natural ventilation in the indoor space. The study was conducted with measurements of thermal comfort variables, especially temperature and wind speed. Then the measurement results were analyzed descriptively quantitatively and viewed the relationship between variables and spatial arrangement – i.e. how the temperatures and wind speed differ in each rooms – so that conclusions could be drawn. The results showed that the layout in Pontianak's melayu vernacular house, namely the presence of terraces and back veranda, played a role in the natural ventilation that occurred in the indoor space. The terrace plays a role in reducing the outside temperature that enters the building (30.74 °C in the outdoor, then 29.84 °C on the front terrace, and 29.09 °C in the indoor). Back veranda and spatial layout provide better wind movement, indicated by small difference between the speed of wind in the indoor and the outdoor space of the house with back veranda (0.51 m/s) compared to the house without back veranda (0.77 m/s).Keywords: natural ventilation, vernacular, spatial layoutREFERENCESBoutet, Terry S. (1987) Controlling Air Movement: A Manual for Architects and Builders. New York: McGraw-Hill Book Company.Caesariadi, Tri Wibowo; Kalsum, Emilya (2011) Climatic Responsive Space in Melayu Pontianak House: A Preliminary Study. The CIB Inter-national Conference: Enhancing the Locality in Architecture, Housing and Urban Environment. January 22, 2011. Yogyakarta.Engin, N.; Vural, N.; Vural, S.; Sumerkan, M.R. (2005) “Climatic Effect in the Formation of Vernacular Houses in the Eastern Black Sea Region”. Building and Environment, Vol. 42. www. sciencedirect.comGutierrez, Jorge (2004) “Notes On the Seismic Adequacy of Vernacular Buildings”. Paper No. 5011. 13th World Conference on Earthquake Engineering. Vancouver.Koenigsberger, O.H.; Ingersoll, T.G.; Mayhew, Alan; Szokolay, S.V., (1973) Manual of Tropical Housing and Building, Part One: Climatic Design, London: Longman Group Limited.Lechner, Norbert (2001) Heating, Cooling, Lighting: Design Methods for Architects. New York: John Wiley & Sons, Inc.Lippsmeier, Georg (1997) Bangunan Tropis. Jakarta: Erlangga.Sozen, Mujgan S.; Gedik, Gulay Z. (2006) “Evaluation of Traditional Architecture in Terms of Building Physics : Old Diyarbakir Houses”. Build and Environment, Vol. 42. www.elsevier.com.Szokolay, Steven V. (2008) Introduction to Archi-tectural Science: The Basis of Sustainable Design, 2nd ed.. Oxford: Architectural Press Elsevier.

Analysis of Natural Ventilation Systems in Schoolrooms

2016 ◽  
Vol 824 ◽  
pp. 625-632
Author(s):  
Mária Budiaková
Keyword(s):  
Mechanical Ventilation ◽  
Thermal Comfort ◽  
Energy Saving ◽  
Air Temperature ◽  
Natural Ventilation ◽  
Winter Period ◽  
Experimental Measurements ◽  
Air Velocity ◽  
The Future ◽  
Ventilation Systems

The paper is oriented on the analysis of the ventilation systems in schoolrooms. Correct and sufficient ventilation of schoolrooms is very important because students and pupils spend in the schoolrooms the majority of their time in school. In our schools the ventilation is incorrect and insufficient. The biggest problem is winter period when the ventilation is provided only by opening the doors to corridor. This way, there is insufficient intake of oxygen, which causes distractibility and feeling of tiredness of pupils. In current schoolrooms we can use only natural ventilation and thus the schoolrooms have to be ventilated using windows. Therefore this research was focused on the comparison and the analysis of different systems of natural ventilation in schoolrooms. The experimental measurements were carried out in schoolroom, where the parameters of thermal comfort were measured in the different systems of natural ventilation with device Testo 480 which was connected to computer. Gained values of air temperature, air velocity and index PMV are presented in graphs. On the base of analysis of measured values were evaluated the systems of natural ventilation for schoolrooms. In the future, the mechanical ventilation in schoolrooms can be assumed, therefore the recommendation on modern energy saving system of mechanical ventilation is in the end of this paper.

scholarly journals Towards an Adaptation of Efficient Passive Design for Thermal Comfort Buildings

2021 ◽  
Vol 13 (17) ◽  
pp. 9570
Author(s):  
Ghada Elshafei ◽  
Silvia Vilcekova ◽  
Martina Zelenakova ◽  
Abdelazim M. Negm
Keyword(s):  
Wind Speed ◽  
Thermal Comfort ◽  
Natural Ventilation ◽  
Meteorological Data ◽  
Green Building ◽  
Climatic Conditions ◽  
Indoor Climate ◽  
Indoor Thermal Comfort ◽  
Passive Design ◽  
Different Shapes

This paper discusses the effect of various climatic conditions that pertain to passive design measurements and their relationships with building configurations to improve indoor thermal comfort based on the different climate zones in Egypt to support Egypt’s sustainability agenda 2030. We find the most appropriate design settings that can increase the indoor thermal comfort, such as building orientation and shape. These settings can be modeled using DesignBuilder software combined with Egyptian meteorological data. This software is used accompanied by computational fluid dynamics to numerically assess the outcomes of different changes, by simulating indoor climate condition factors such as wind speed and temperature. Natural ventilation simulations were performed for four different shapes to create comprehensive dataset scenarios covering a general range of shapes and orientations. Seven scenarios were optimized to put forward a series of building bioclimatic design approaches for the different characteristic regions. The results indicated that the temperature decreased by about 3.2%, and the air velocity increased within the study domain by 200% in the best and the worst cases, respectively, of the four different shapes. The results of the study gave evidence that the configuration of buildings, direction, and wind speed are very important factors for defining the natural ventilation within these domains to support the green building concept and the sustainable design for a better lifestyle.

scholarly journals Analysis of tourism potential for Crete island, Greece

2013 ◽  
Vol 13 (2) ◽  
pp. 14-149 ◽  
Keyword(s):  
Wind Speed ◽  
Thermal Comfort ◽  
Air Temperature ◽  
Meteorological Parameters ◽  
Thermal Sensation ◽  
Research Unit ◽  
Wave Radiation ◽  
Thermal Indices ◽  
Crete Island ◽  
Tourism Potential

To describe the tourism potential of an area, not only single meteorological parameters have to be taken into account, but also thermal sensation and people’s thermal comfort. The latter can be estimated by the use of human energy balance models and the derived thermal indices, which comprise all relevant meteorological parameters like air temperature, air humidity, wind speed, and short and long wave radiation fluxes. This paper makes an attempt to assess and analyze climatological parameters and the thermal comfort of Crete, its variations and trends for the period of time 1955-2001. In addition, a definition and quantification of the island’s tourism potential is carried out. Long term data from several stations are used from the existing climatic and synoptic network of Crete, including daily mean, maximum and minimum temperature, relative humidity, wind speed, and cloud cover over the whole island, in order to derive the daily Physiologically Equivalent Temperature (PET) and precipitation. In addition, possible trends of thermal comfort and precipitation on an annual and seasonal basis are analyzed. Additionally, data of the 10-minutes climatology of the Climate Research Unit of the University of Norwich have been processed in order to create high resolution (1 km) mean monthly maps for climatological parameters such as air temperature, precipitation and Physiologically Equivalent Temperature.

scholarly journals KENYAMANAN TERMAL ADAPTIF MAHASISWA DI UNIVERSITAS SAINS DAN TEKNOLOGI JAYAPURA

2021 ◽  
Vol 9 (1) ◽  
pp. 17-23
Author(s):  
Indah Sari Zulfiana
Keyword(s):  
Thermal Comfort ◽  
Air Temperature ◽  
Adaptive Behavior ◽  
Environmental Parameters ◽  
Thermal Conditions ◽  
Climatic Conditions ◽  
High Humidity ◽  
Air Velocity ◽  
Adaptive Thermal Comfort ◽  
Thermal Preferences

To get good quality learning, a comfortable study room is needed both visually, audally and thermally. Thermal comfort is greatly influenced by the climatic conditions of a region. In areas with high daily air temperature, high humidity and low air velocity, it is difficult to produce thermal comfort with natural air conditioning. Jayapura City is one of the cities in Indonesia with daily air temperature and high humidity and low air velocity. Therefore, adaptive processes are needed to achieve thermal comfort in spaces, including study rooms. Each human's adaptive thermal comfort is different according to local climatic conditions. The purpose of this study was to determine the adaptive thermal comfort of students in naturally ventilated classrooms at the Jayapura University of Science and Technology (USTJ) in the city of Jayapura, Papua, namely students 'neutrality, acceptance and thermal preferences, as well as students' adaptive behavior in achieving thermal comfort. This research was conducted in one of USTJ's classrooms in Jayapura, Papua. Four environmental parameters were measured, namely temperature, humidity, wind speed, and mean radiant temperature (MRT). The data were obtained through filling out a questionnaire to 100 USTJ students during the space measurement. Thermal neutrality data were analyzed using regression analysis using SPSS software, while thermal acceptance and preference and adaptive behavior were analyzed based on the results of the questionnaire answers. The results showed that USTJ students' thermal neutrality was at 29.°C Ta or 29.55°C Top. all students can accept the thermal conditions of the room, but 59% of students choose to want the room to be cooler due to their thermal preferences. The adaptive behavior that is carried out is turning on the fan, picking up objects to be used as a fan, leaving the room and drinking more often.

scholarly journals KAJIAN PENGGUNAAN VENTILASI ALAMI TERHADAP KENYAMANAN TERMAL RUANG KELAS (Studi Kasus : Sdn Pondok Jagung 1 Tangerang Selatan)

Vitruvian ◽  
2019 ◽  
Vol 8 (3) ◽  
pp. 141
Author(s):  
Abdullah Yeny ◽  
Muhammad Syarif Hidayat
Keyword(s):  
Wind Speed ◽  
Data Collection ◽  
Thermal Comfort ◽  
Air Temperature ◽  
Quantitative Method ◽  
Comfort Zone ◽  
Collection Method ◽  
Infrared Thermometer ◽  
Qualitative And Quantitative ◽  
Measurement Tools

ABSTRAKPenelitian ini bertujuan untuk mengetahui pengaruh kenyamanan termal para siswa dalam ruang kelas serta untuk mengetahui seberapa besar pengaruh bukaan terhadap kenyamanan termal siswa di ruang kelas. Objek dari penlitian ini adalah tiga ruang kelas di SDN Pondok Jagung 1, Kota Tangerang Selatan.  Kelas yang diteliti adalah dua kelas di lantai satu dan satu kelas di lantai dua. Metode yang digunakan dalam penelitian ini adalah metode kualitatif dan kuantitatif yang digunakan sebagai metode pengumpulan data. Yaitu berupa kuesioner (Kualitatif) dan pengukuran kenyamanan termal menggunakan alat pengukuran (kuantitatif) berupa kecepatan angin (Anemometer Vane Probe), pengukuran suhu permukaan (Infrared Thermometer) dan pengukuran kelembapan ruangan. (Dry and Wet). Pengukuran yang dilakukan mengggunakan tiga experiemen yaitu dengan ventilasi tertutup semua, ventilasi terbuka menyilang dan ventilasi terbuka semua. Dari hasil tersebut maka dapat disimpulkan bahwa semakin banyak ventilasi yang terbuka maka semakin rendah nilai PMV yang diperoleh karena suhu udara akan semakin dinging. Kemudian semakin banyak ventilasi yang dibuka maka nilai PPD (%) akan semakin menurun. Sehingga benyaknya ventilasi pada ruangan akan mempengaruhi kenyamanan termal ruangan. Sedangkan nilai kenyamanan termal yang diperoleh adalah kelas 3A dan 3B belum memnuhi kenyamanan termal. Namun kelas 4A adalah kelas yang paling mendekati zona Kenyamanan termal. Kata Kunci : Kenyamanan Termal, PMV, Ruang Kelas.  ABSTRACTThis study aims to determine the effect of thermal comfort of students in the classroom and to find out how much influence the openings to the thermal comfort of students in the classroom. The object of this research is three classrooms in SDN Pondok Jagung 1, Kota Tangerang Selatan. The researches are two classes on the first floor and one class on the second floor. The method used in this research is qualitative and quantitative method used as data collection method. Namely the questionnaire (Qualitative) and thermal comfort measurements using measurement tools (quantitative) in the form of wind speed (Anemometer Vane Probe), measurement of surface temperature (Infrared Thermometer) and humidity measurement of the room. (Dry and Wet). Measurements were made using three experi- ences: all closed ventilation, open cross ventilation and all open ventilation. From these results it can be concluded that the more open ventilation, the lower the PMV values is obtained because the air temperature will be more dinging. Then the more ventilation opened then the value of PPD (%) will decrease further. So that the ventilation in the room will affect the thermal comfort of the room. While the thermal comfort value obtained is class 3A and 3B have not fulfilled thermal comfort. However class 4A is the class closest to the Thermal comfort zone.

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