scholarly journals Thermal-comfort evaluation of and plan for public space of Maling Village, Henan, China

PLoS ONE ◽  
2021 ◽  
Vol 16 (9) ◽  
pp. e0256439
Author(s):  
Qindong Fan ◽  
Fengtian Du ◽  
Hu Li ◽  
Chenming Zhang
Keyword(s):  
Thermal Comfort ◽  
Public Space ◽  
Thermal Environment ◽  
Outdoor Environment ◽  
Spatial Form ◽  
Outdoor Activities ◽  
Comfort Index ◽  
The Village ◽  
Microclimate Environment

The thermal environment of village public space affects the comfort of people ’ s outdoor activities, and then affects the willingness of residents to outdoor activities, which has an important impact on the villagers’ quality of life. Previously published studies of thermal comfort mostly focused on the evaluation of thermal comfort index, few studies on the application of thermal comfort planning. The study was carried out in Maling Village, Changdai Town, Mengjin County, Luoyang City, Henan Province, China. Square, street, green space were chosen as three typical public spaces where thermal comfort indexes were measured by questionnaire survey and field measurement during summer. Subsequently, the village’s microclimate environment was simulated with ArcGIS 10.6 and ENVI-met. The results indicate that during the summer, the influences of temperature, solar radiation, wind speed, and relative humidity on the subjective comfort conditions of the outdoor environment gradually decreased. The spatial form of village has an important influence on thermal comfort. Finally, based on the results, this study put forward the thermal comfort process and planning scheme of the village outdoor space.

scholarly journals Application of thermal comfort assessment models to indoor areas near glazed walls – experimental evaluation

2021 ◽  
Vol 20 (1) ◽  
pp. 106-127
Author(s):  
António Manuel Figueiredo Freitas Oliveira ◽  
◽  
Helena Corvacho ◽  
Keyword(s):  
Solar Radiation ◽  
Thermal Comfort ◽  
Thermal Environment ◽  
National Laboratory ◽  
Environmental Parameters ◽  
Outdoor Environment ◽  
Assessment Model ◽  
Indoor Space ◽  
The Impact ◽  
Indoor Spaces

In this paper, some of the results of an experimental study are presented. Its purpose was to better understand the impact of glazing on thermal comfort of users of indoor spaces (living and working), especially in the areas near glazed walls. Glazed elements, such as windows and glazed doors, allow visual access to the outdoor environment and the entrance of natural light and solar heat gains but they are often the cause of unwanted heat losses and gains and are disturbing elements in obtaining thermal comfort, both in global terms and in what concerns local discomfort due to radiant asymmetries and/or air draughts. Furthermore, solar radiation directly affecting users in the vicinity of glazing can also cause discomfort. These disturbances are recognized by users, both on cold winter days and on hot summer days. To assess thermal comfort or thermal neutrality of a person in a particular indoor space, it is important to know their location within that space. Thus, in order to adequately assess thermal comfort in the areas near the glazing, the indoor thermal environment must be characterized for this specific location. In this study, two indoor spaces (a classroom and an office-room) of a school building were monitored at different periods of the year. The measurements of the environmental parameters were performed both in the center of the rooms and in the areas near the glazing. Five models of thermal comfort assessment were then applied to the results, in order to compare the comfort conditions between the two studied locations and to evaluate the applicability of these models to the areas close to glazed walls. It was observed there was clearly a greater variability of comfort conditions in the vicinity of the glazed walls when compared to the center of the rooms. The application of thermal comfort assessment models to the two studied rooms was able to reveal the differences between the two compared locations within each space. It was also possible to show the effect of incoming solar radiation and the influence of the geometry of the spaces and of the ratio between glazed area and floor area by comparing the results for both spaces. The assessment model proposed by LNEC (Portuguese National Laboratory of Civil Engineering) proved to be the most adapted to Portuguese users’ habits.

scholarly journals THERMAL COMFORT INVESTIGATION ON HOLY MOSQUE IN BANDUNG Case Study : Lautze 2 Mosque Bandung

2020 ◽  
Vol 2 (1) ◽  
pp. 82
Author(s):  
Agung Prabowo
Keyword(s):  
Thermal Comfort ◽  
Quantitative Research ◽  
Thermal Environment ◽  
Tropical Climate ◽  
Air Humidity ◽  
Air Velocity ◽  
Related Factors ◽  
Climate Conditions ◽  
Comfort Index ◽  
Main Factors

Abstract -Thermal comfort is a state of mind that expresses satisfaction with the thermal environment. There are two main categories in the effort to obtain a comfort index; empirical and analytical. Empirical is based on social surveys, while analysis is based on the physics principle of heat flow.Bandung city is one of the historical cities in Indonesia which has many historical heritage buidings. One of them which is commonly known as colonial buildings in Bandung is Lautze 2 Mosque, located at Tamblong Street in the city center of Bandung. This research was conducted to analyze the thermal comfort in the Lautze 2 Mosque Bandung. The analytical method used in this study is a quantitative research method by measuring the main factors namely air temperature, air humidity and air velocity. The main factors become obstacles to get thermal comfort data at the Lautze 2 Mosque Bandung is the location of buildings located in areas with tropical climate conditions with high air temperatures, high air humidity, and low air velocitys.The research conclude that thermal comfort in the Lautze 2 Mosque Bandung building can be categorized as uncomfortable, it can be seen from the measurement results of related factors, namely the temperature and humidity that exceeds the comfort limit and the low air velocity in the building becomes an obstacle to obtain thermal comfort. Keywords: colonial buildings, mosque, thermal comfort, tropical climate.

scholarly journals Study of Universal Thermal Comfort Index in Hosing Estate Public Space in Bangkok, Thailand

2021 ◽  
Vol 21 (2) ◽  
pp. 10-18
Author(s):  
Pitiwat Wattanachai ◽  
Chawanat Sundaranaga ◽  
Thidarat Kridakorn Na Ayutthaya ◽  
Non Phichetkunbodee ◽  
Damrongsak Rinchumphu
Keyword(s):  
Thermal Comfort ◽  
Public Space ◽  
Public Spaces ◽  
Thermal Reduction ◽  
External Temperature ◽  
Comfort Index ◽  
Large Trees ◽  
Public Areas ◽  
Outdoor Comfort ◽  
Air Circulation

A lower external temperature increases comfort and reduces the chance of heat stress; it can be impacted by the density of the urban area, and this is an important issue for the residents in housing estate developments. Therefore, to sustainably reduce this issue, the external temperature is important to manage for urban public spaces’ development. This article reports the results of studies on increasing thermal comfort in public areas by adding different types of shading into computer programs, Rhinoceros and Grasshopper, to calculate the Universal Thermal Comfort Index (UTCI). Increasing the outdoor comfort can be done by adding shaded areas via large trees that can result in thermal reduction and humidity increase, but they do not obstruct air circulation. The result can be used as a guideline for the design of public spaces in housing estates to meet the outdoor comfort efficiently and support the users’ expectations.

scholarly journals Importance of Behavioral Adjustments for Adaptive Thermal Comfort in a Condominium with HEMS System

2020 ◽  
Vol 15 (3) ◽  
pp. 163-170
Author(s):  
Rajan KC ◽  
Hom Bahadur Rijal ◽  
Masanori Shukuya ◽  
Kazui Yoshida
Keyword(s):  
Thermal Comfort ◽  
Air Temperature ◽  
Energy Use ◽  
Thermal Environment ◽  
Residential Buildings ◽  
Outdoor Environment ◽  
Adaptive Behaviors ◽  
Outdoor Air ◽  
Indoor Thermal Environment ◽  
Indoor Thermal Comfort

The energy use in residential dwellings has been increasing due to increasing use of modern electric appliances to make the lifestyle easier, entertaining and better. One of the major purposes of indoor energy use is for improving indoor thermal environment for adjusting thermal comfort. Along with the use of passive means like the use of mechanical devices, the occupants in any dwellings use active means such as the use of natural ventilation, window opening, and clothing adjustment. In fact, the use of active means when the outdoor environment is good enough might be more suitable to improve indoor thermal environment than the use of mechanical air conditioning units, which necessarily require electricity. Therefore, the people in developing countries like Nepal need to understand to what extent the occupants can use active means to manage their own indoor thermal comfort. The use of active means during good outdoor environment might be an effective way to manage increasing energy demand in the future. We have made a field survey on the occupants’ adaptive behaviors for thermal comfort in a Japanese condominium equipped with Home Energy Management System (HEMS). Online questionnaire survey was conducted in a condominium with 356 families from November 2015 to October 2016 to understand the occupants’ behaviors. The number of 17036 votes from 39 families was collected. The indoor air temperature, relative humidity and illuminance were measured at the interval of 2-10 minutes to know indoor thermal environmental conditions. The occupants were found using different active behaviors for thermal comfort adjustments even in rather harsh summer and winter. Around 80% of the occupants surveyed opened windows when the outdoor air temperature was 30⁰C in free running (FR) mode and the clothing insulation was 0.93 clo when the outdoor air temperature was 0⁰C. The result showed that the use of mechanical heating and cooling was not necessarily the first priority to improve indoor thermal environment. Our result along with other results in residential buildings showed that the adaptive behaviors of the occupants are one of the primary ways to adjust indoor thermal comfort. This fact is important in enhancing the energy saving building design.

scholarly journals REDESAIN RUANG TERBUKA HIJAU KAMPUS UNSRAT BERDASARKAN EVALUASI KENYAMANAN TERMAL DENGAN INDEKS DISC

EUGENIA ◽  
2017 ◽  
Vol 23 (2) ◽  
Author(s):  
Fabiola B. Saroinsong ◽  
J. I. Kalangi ◽  
Prestin Babo
Keyword(s):  
Thermal Comfort ◽  
General Framework ◽  
Climate Changes ◽  
Landscape Design ◽  
Master Plan ◽  
Sustainable Cities ◽  
University Campus ◽  
Outdoor Activities ◽  
Outdoor Spaces

ABSTRACT Outdoor spaces are important to sustainable cities because they accommodate outdoor activities and contribute greatly to the quality of urban living.During the last decade, interest in the assessment of thermal comfort has increased because of climate changes and increased heat stress in cities. Greenspaces that provide a pleasurable thermal comfort experience for users effectively improve their quality of livability and productivity. However, current investigations lack a general framework for the use of thermal comfort assessment, such as in making master plan or designing better greenspace. This paper discusses greenspace of Sam Ratulangi University Campus relating to thermal comfort. It provides knowledge of thermal comfort investigation and landscape design review. The results of thermal comfort assessment, among 11 observed plots, only greenspace at FMIPA is categorized as comfortablespot. Greenspaces at FAPET and FEB are not really comfortable, those at BNI and FKM A and FKM B are not comfortable and those at FATEK, FAPERTA, FISIP, FH, FKM A are categorized as very uncomfortable spots. We suggest some options for redesigningof uncomfortable and very uncomfortable greenspace spots.Keywords: greenspace, outdoor, termal comfort

scholarly journals IDENTIFIKASI KENYAMANAN TERMAL BANGUNAN (STUDI KASUS: RUANG KULIAH KAMPUS IPB BARANANGSIANG DAN DARMAGA BOGOR)IDENTIFICATION OF BUILDING THERMAL COMFORT (Case Study: Classrooms in IPB Banangsiang and Darmaga Campuses)

Agromet ◽  
2010 ◽  
Vol 24 (1) ◽  
pp. 14 ◽  
Author(s):  
Rendy Kurnia ◽  
Sobri Effendy ◽  
Laras Tursilowati
Keyword(s):  
Thermal Comfort ◽  
Effective Temperature ◽  
Urban Areas ◽  
Thermal Environment ◽  
Physical Development ◽  
Lecture Hall ◽  
Campus Environment ◽  
Surrounding Areas ◽  
The City

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.

scholarly journals Evaluasi Kenyamanan Termal dan Kualitas Estetika pada Beberapa Taman Kota Banda Aceh.

2019 ◽  
Author(s):  
Azwinur
Keyword(s):  
Thermal Comfort ◽  
Aesthetic Quality ◽  
City Parks ◽  
Scenic Beauty ◽  
Comfort Index ◽  
Humidity Index ◽  
Vegetation Water ◽  
The Aesthetic ◽  
Banda Aceh

Abstract This research focuses on three city parks in Banda Aceh City, that are Taman Putroe Phang, Lapangan Blang Padang, and Hutan Kota BNI. The purposes of this research are to identify the characteristic of city parks existing condition, to analyze the thermal comfort index and aesthetic quality, as well as to suggest the recommendation of city parks improvement for the future. The method on this research using descriptive method through the calculation of Thermal Humidity Index (THI), Scenic Beauty Estimation (SBE), and questionnaires to the perceptions and preferences of visitors. Based on THI calculation, thermal comfort index on research sites classified in the category of quite comfortable. The part of city parks that represent the best of thermal comfort index is the area which has trees as the dominant vegetation. Based on the aesthetic quality evaluation, there are several factors that affect the aesthetic quality of the three research locations, that are the neatness; the combination of landscape element which consist of vegetation, water, and also pavement; as well as the arrangement of landscape that involves the principle of design. Based on visitor questionnaires, it is known that the visitors want some additional facilities to support their activities, and increasing the uses of flowering plants as well as shade plants to enhance the aesthetic quality and convenience of city parks.

scholarly journals Analyzing the Effect of Water Body on the Thermal Environment and Comfort at Indoor and Outdoor Spaces in Tropical University Campus

2021 ◽  
Vol 12 (10) ◽  
pp. 282-288
Author(s):  
Farhadur Reza ◽  
◽  
Shoichi Kojima ◽  
Wataru Ando
Keyword(s):  
Thermal Comfort ◽  
Thermal Environment ◽  
Outdoor Thermal Comfort ◽  
University Campus ◽  
Clothing Insulation ◽  
Comfort Index ◽  
Outdoor Spaces ◽  
Globe Temperature ◽  
And Performance ◽  
University Spaces

Water bodies play a significant role in its surrounding thermal environment. Thermal comfort in university spaces is critical that affects the students’ health and performance as well as the staffs. This study investigated thermal environment and comfort near lakeside and non-lakeside tropical university spaces. Standard Effective Temperature (SET*) have been calculated using recorded air temperature, relative humidity, globe temperature, air velocity, clothing insulation and metabolic rate to evaluate the thermal comfort in outdoor and indoor spaces. The effects of weather parameters have been clearly visible on the comfort index. The calculated SET* values indicate that the outdoor thermal comfort near a lake is much closer to the standard comfort zone than non-lakeside outdoor space. In the case of indoor thermal comfort, however, slightly a different scenario has been observed. To achieve the desirable indoor thermal environment, some design considerations are recommended based on findings.

scholarly journals Microclimate Environmental Assessment and Impact of Mountain City Pedestrian Streets in Summer

2020 ◽  
Vol 172 ◽  
pp. 11001
Author(s):  
Ke Xiong ◽  
Zhenjing Yang ◽  
Canhua Cheng
Keyword(s):  
Thermal Comfort ◽  
Environmental Assessment ◽  
Thermal Environment ◽  
Climate Index ◽  
View Factor ◽  
City Street ◽  
Thermal Climate ◽  
The One ◽  
Microclimate Environment ◽  
Important Form

In mountainous cities, walking is an important form of transportation. The microclimate environment of pedestrian streets in summer affects the comfort of pedestrians, especially in hot summer cities. Besides, there are many height differences in mountainous city pedestrian streets, while existing researches of the thermal environment were mainly aimed at plain cities. We used typology to analyze different spatial patterns and tested microclimate of five kinds of streets in the Shanchengxiang of Chongqing. Then the universal thermal climate index (UTCI) was used to evaluate the thermal comfort of different spatial spaces. Firstly, the thermal environment of the mountain city street in summer is extremely uncomfortable and needs to be improved. Secondly, the sky view factor (SVF) has a great impact on the street thermal environment. Among all kinds of streets, the one-sided open B-N (SVF = 0.474) has the worst thermal environment, with an average UTCI of 44.7℃. However, the two-sided enclosed B2-B2 (SVF = 0.052) represents a better thermal environment, with an average UTCI of 35.5℃. The R2 value of 0.88 reflects that the linear correlation between UTCI and SVF is larger than that of H/W, whose R2 value is mere 0.04. Finally, different interfaces and enclosure forms have a great impact on space thermal comfort. This study quantifies the parameters that influence the design of pedestrian streets in mountain cities from the perspective of outdoor microclimate environmental assessment and provide a reference for the sustainable design of regional streets.

Impact of Outdoor Environments on the Quality of Life

2018 ◽  
Vol 3 (10) ◽  
pp. 36-46
Author(s):  
Muhammad Abu Eusuf ◽  
MA Mohit ◽  
MMR Sami Eusuf ◽  
Mansor Ibrahim
Keyword(s):  
Quality Of Life ◽  
Urban Space ◽  
Thermal Environment ◽  
Publishing House ◽  
Outdoor Environment ◽  
Outdoor Thermal Environment ◽  
Outdoor Environments ◽  
International Publishing ◽  
Open Access Article

The characteristics of outdoor environment in urban spaces and morphology distress the quality of life (QoL) of urban dwellers and visitors. The main purpose of this study is to develop an extensive hypothesis on the parametric evaluation related to the adaptation of the urban environment and dweller’s QoL by methodical literature review, field observation and proposal on an alternative design strategy. The parameters include microclimate, urban space and traffic, waste management and other influencing factors are desired to envisage for effective investigation. Factors play a key role on the variation of QoL and instinctively affect the dwellers approach and comportment.    Keywords: Outdoor thermal environment; microclimate; urban space and urban community; human attitude and behaviour. eISSN 2514-751X © 2018. The Authors. Published for AMER ABRA cE-Bs by e-International Publishing House, Ltd., UK. This is an open-access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia. DOI: https://doi.org/10.21834/aje-bs.v3i10.311

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