Impact of building morphology and outdoor environment on light and thermal environment in campus buildings in cold region during winter

2021 ◽  
pp. 108074
Author(s):  
Shibo Wang ◽  
Bin Chen ◽  
Jian Suo ◽  
Joe R. Zhao
Keyword(s):  
Thermal Environment ◽  
Outdoor Environment ◽  
Cold Region

Effects of thermal environment on elderly in urban and rural houses during heating season in a severe cold region of China

2019 ◽  
Vol 198 ◽  
pp. 61-74 ◽  
Author(s):  
Huibo Zhang ◽  
Ya Chen ◽  
Jingwen Rui ◽  
Hiroshi Yoshino ◽  
Jinfeng Zhang ◽  
...  
Keyword(s):  
Thermal Environment ◽  
Heating Season ◽  
Cold Region

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 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.

Strategy for Application of Non-Wood Fibrous Material on Roofs at Rurual Areas in Cold Region

2015 ◽  
Vol 730 ◽  
pp. 105-108
Author(s):  
Xin Ran Wang ◽  
Yu Zhang
Keyword(s):  
Fibrous Material ◽  
Thermal Environment ◽  
Material Selection ◽  
Poor Quality ◽  
Engineering Practice ◽  
Construction Technology ◽  
Design Strategies ◽  
Cold Region ◽  
Climate Conditions ◽  
Insulation Performance

Large energy consumption, serious pollution and poor quality of indoor thermal environment are generally seen during construction in villages and towns in China nowadays, leading to poor building insulation performance. Envolope of enclosure of a buidling is key to its insulation performance. Material selection of building enclosures and green design of construction technology are the key to promoting insulation performance of the building as villages and towns in cold region are subject to special geographical position, climate conditions and economic factors. With a focus on research of traditional non-wood fibrous material modification with existing technology and the engineering practice in non-wood fibre roof in villages and towns of cold region, this paper came up with the prospects of its applicatin in the following design strategies including “ecological and conservation-oriented roofing with modified local materials, new hybrid roofing with simplified construction technology and paper tensioning roofing with innovative synthetic materials”.

Study on Thermal Environment of Traditional Architecture in Tropic Climate

2011 ◽  
Vol 243-249 ◽  
pp. 6857-6861 ◽  
Author(s):  
Li Juan Wang ◽  
Jia Ping Liu ◽  
Yan Feng Liu ◽  
Ying Ying Wang ◽  
Jing Chen
Keyword(s):  
Heat Stress ◽  
Wind Speed ◽  
Metabolic Rate ◽  
Natural Ventilation ◽  
Thermal Environment ◽  
Outdoor Environment ◽  
Stress Index ◽  
Traditional Architecture ◽  
Thermal Environments ◽  
Heat Stress Index

Haikou is located in tropic climates in China. The outdoor environment in summer is too harsh to stay here. However, the traditional architecture, namely arcade, still survives in the severe climate. Its indoor and outdoor parameters of arcade are tested in field to research its thermal environments. The heat stress index is used to study the adaptability mechanism of arcade and local human to hot and humid environment. It proves that the metabolic rate and wind velocity are main and adjustable factors to reduce heat stress in such wretched weather. On the condition of metabolic rate below 60met and wind speed above 0.7m/s, the healthy adult can work normally in the arcade or on the corridor. So the human in tropic area should keep their metabolic rate and period staying out in the summer daytime as less as possible, and the architects should make full use of the local wind speed to organize natural ventilation.

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

Study on Outdoor and Semi-Outdoor Thermal Comfort of College Campus in Central Taiwan

2014 ◽  
Vol 1030-1032 ◽  
pp. 624-628
Author(s):  
Wen Pei Sung ◽  
Shih Tai Hu ◽  
Yu Kuang Zhao ◽  
Lei Wei
Keyword(s):  
Thermal Comfort ◽  
Thermal Environment ◽  
Outdoor Environment ◽  
Outdoor Thermal Comfort ◽  
Small Island ◽  
Air Conditioner ◽  
Subtropical Zone ◽  
Outdoor Thermal Environment ◽  
Outdoor Comfort ◽  
Central Taiwan

Taiwan is a small island. Some of college campuses are very tiny with large hard pavement to cause un-comfortable outdoor environment. Most of faculty and students like to stay at classroom and use air-conditioner to establish comfort thermal environment. Thus, the outdoor and semi-outdoor thermal equipments are used to detect the parameters of weather. The test and analysis results show that hard pavements cause the un-comfortable outdoor comfort. Mean Radiant Temperatures of grass in summer is higher than the other pavement because that grass pavement is lack of moisture to causes bad outdoor thermal comfort. Therefore, the fine outdoor and semi-outdoor thermal comfort environment should consider the permeable pavement and grass with suitable moisture to cause better outdoor thermal environment and large arbores should be planted widely in campus to establish a better semi-outdoor thermal temperature in campus of the subtropical zone.

scholarly journals A PROPOSAL FOR THE THERMAL ENVIRONMENT OF GLASS-COVERED SPACES IN A COLD REGION

1999 ◽  
Vol 5 (7) ◽  
pp. 99-104
Author(s):  
Katsumi KUBOTA ◽  
Masamichi ENAI ◽  
Noboru ARATANI
Keyword(s):  
Thermal Environment ◽  
Cold Region

Field Measurement and Analysis of the Micro Climate of a Campus Square

2012 ◽  
Vol 610-613 ◽  
pp. 923-927
Author(s):  
Yan Yan Huang ◽  
Shi Chao Deng
Keyword(s):  
Wind Speed ◽  
Public Space ◽  
Thermal Environment ◽  
Environment Design ◽  
Cold Region ◽  
Actual Measurement ◽  
Data Collection And Analysis ◽  
Measurement And Analysis ◽  
Winter Cold

A square is an important multi-functional public space on campus, which can be used as a venue for traffic, gathering, recreational activities and cultural events, and thus the thermal environment of the campus square will directly influence the overall environmental quality of campus. This paper studies a campus square in the summer-hot and winter-cold region, selects typical positions to conduct actual measurement of parameters, such as temperature, relative humidity, wind speed and solar radiation, which indicate the thermal environment. Based on data collection and analysis, it is concluded that the thermal environment of the campus square is affected by microclimate factors such as the square underlying surface properties, vegetation and building and road orientations. This paper is aimed at exploring the regularity of the correlation between microclimate factors and thermal environment in order to facilitate the improvement of the thermal environment of the campus square, make it more comfortable and provide ideas for the landscape and architectural environment design.

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