scholarly journals On the temporal dimension of adaptive thermal comfort mechanisms in residential buildings

2019 ◽  
Vol 609 ◽  
pp. 042071 ◽  
Author(s):  
Jihye Ryu ◽  
Jungsoo Kim ◽  
Wonhwa Hong ◽  
Richard de Dear
Keyword(s):  
Thermal Comfort ◽  
Residential Buildings ◽  
Temporal Dimension ◽  
Adaptive Thermal Comfort

scholarly journals Theoretical Study on the Relationship of Building Thermal Insulation with Indoor Thermal Comfort Based on APMV Index and Energy Consumption of Rural Residential Buildings

2021 ◽  
Vol 11 (18) ◽  
pp. 8565
Author(s):  
Jinzhe Nie ◽  
Yuxin Pang ◽  
Congcong Wang ◽  
Han Zhang ◽  
Kuichao Yin
Keyword(s):  
Thermal Comfort ◽  
Air Temperature ◽  
Indoor Air ◽  
Residential Buildings ◽  
Field Investigation ◽  
Energy And Environment ◽  
Indoor Thermal Comfort ◽  
Adaptive Thermal Comfort ◽  
Insulation Thickness ◽  
The Relationship

In the field investigation of rural dwellings, it was found that thermal feelings are significantly different with varied envelopes even under the same indoor air temperature, and this paper explores the phenomenon in simulation. Based on building thermal investigations in several villages of North China, a typical energy and environment simulation model for rural residences was developed using DeST, and the hourly parameters of temperature and humidity were used to calculate the adaptive thermal comfort (APMV) of the rooms. The results show that the main reason for the different thermal comfort at the same air temperature is the large difference in the inner surface temperature. By adjusting the insulation thickness of the envelope structure, the relationship between it and the APMV value is obtained. By adjusting the insulation thickness of the enclosure structure and getting the correlation between it and the APMV value, it is obtained that when the heat transfer coefficient of the enclosure structure meets 0.5 W/ (m2−K), the indoors can be in thermal comfort. This paper considers that the indoor air temperature cannot represent the APMV to evaluate the indoor thermal comfort, and the APMV value should be used to evaluate the thermal comfort of the renovated building and calculate the corresponding energy saving rate.

scholarly journals Assessing the duality of thermal performance and energy efficiency of residential buildings in hot arid climate of Laghouat, Algeria

2019 ◽  
Vol 11 (1) ◽  
pp. 143-162 ◽  
Author(s):  
Darda Bencheikh ◽  
Madani Bederina
Keyword(s):  
Energy Efficiency ◽  
Thermal Comfort ◽  
Low Income ◽  
Energy Demand ◽  
Air Conditioning ◽  
Residential Buildings ◽  
Comfort Level ◽  
Adaptive Thermal Comfort ◽  
The Difference ◽  
American Society

Abstract Thermal comfort is the main driver of buildings energy consumption; it has been classified by building occupants to be of greater importance compared with visual and acoustic comfort. To respond correctly and quickly to the increase in energy price and pollution, thermal regulations and comfort approaches have emerged. This paper compares the thermal performances and energy demand of a vernacular and a low-income modern dwelling using two major thermal comfort approaches (Givoni’s approach and adaptive thermal comfort recommended by The American Society of Heating, Refrigerating and Air-Conditioning Engineers in ASHRAE standards 55-2010) and the energy professional’s method presented in the French Thermal Regulations RT2012. It shows the effectiveness of bioclimatic and passive strategies in reducing energy demand, increasing the thermal comfort level for the buildings, and therefore reducing greenhouse emissions. The results show that the vernacular house was comfortable during the warm day, which approved a 100% cooling energy efficiency (the thermal comfort has been achieved in a passive way), contrary to the contemporary dwelling, in which the use of air-conditioning modern systems was essential to meet the occupant needs in terms of thermal comfort. The difference between the houses’ energy performances was estimated, including a 39% reduction in energy demand.

scholarly journals Indoor environment and adaptive thermal comfort models in residential buildings in Tianjin, China

2017 ◽  
Vol 205 ◽  
pp. 1627-1634 ◽  
Author(s):  
Yangrui Song ◽  
Yuexia Sun ◽  
Shugang Luo ◽  
Jing Hou ◽  
Jungsoo Kim ◽  
...  
Keyword(s):  
Thermal Comfort ◽  
Indoor Environment ◽  
Residential Buildings ◽  
Adaptive Thermal Comfort

scholarly journals Field Study on Adaptive Thermal Comfort in Naturally Ventilated Secondary School Buildings in Nepal

2020 ◽  
Vol 15 (3) ◽  
pp. 317-325
Author(s):  
Mishan Shrestha ◽  
Hom B Rijal ◽  
Masanori Shukuya
Keyword(s):  
Secondary School ◽  
Thermal Comfort ◽  
Thermal Environment ◽  
Negative Impact ◽  
Residential Buildings ◽  
Temperate Climate ◽  
School Buildings ◽  
Preferred Temperature ◽  
Indoor Thermal Environment ◽  
Adaptive Thermal Comfort

Most of the classroom in Nepalese school buildings are thermally less acceptable due to the poor thermal insulation. They are extreme cold in winter and extreme hot in summer season leading for the discomfort in classroom. Thermally uncomfortable classroom causes the negative impact in the academic performance of students. Therefore, there should be serious attention to improve the indoor thermal environment of classroom. There are limited indoor thermal environment studies conducted in Nepalese residential buildings but not at all in school buildings yet. This study investigated the students’ perceptions on thermal comfort inside the classroom of secondary school buildings during the autumn season of 2017 in a temperate climate (Dhading, Kathmandu and Nuwakot districts) of Nepal. 22 classrooms (33 students in average in each class) of 8 school buildings with a total of 818 students aged 12-18 years, 329 (40%) males and 489 (60%) females were participated in the survey. The two simultaneous surveys: questionnaire survey and thermal measurement survey were conducted during the regular lesson periods in each classroom. Students voted at the beginning, in the middle and at the end of the class in minutes’ lecture. About 76% responses were found to be in either of slightly cold, neutral or slightly hot. The results show that the comfort temperature of students was around 28 °C, 26°C and 24°C in Dhading, Kathmandu and Nuwakot districts, respectively. However, the mean comfort temperature and preferred temperature was found to be around 27 °C and 26 °C respectively. The findings of this study may hopefully invoke the awareness of the school building designers, teachers and students to maintain the thermally comfortable school buildings without using mechanical system.

scholarly journals Heating and Cooling Degree-Days Climate Change Projections for Portugal

Atmosphere ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 715
Author(s):  
Cristina Andrade ◽  
Sandra Mourato ◽  
João Ramos
Keyword(s):  
Climate Change ◽  
High Resolution ◽  
Thermal Comfort ◽  
Energy Demand ◽  
Residential Buildings ◽  
Degree Days ◽  
Climate Change Projections ◽  
Heating And Cooling ◽  
Cooling Degree Days ◽  
Heating Energy Demand

Climate change is expected to influence cooling and heating energy demand of residential buildings and affect overall thermal comfort. Towards this end, the heating (HDD) and cooling (CDD) degree-days along with HDD + CDD were computed from an ensemble of seven high-resolution bias-corrected simulations attained from EURO-CORDEX under two Representative Concentration Pathways (RCP4.5 and RCP8.5). These three indicators were analyzed for 1971–2000 (from E-OBS) and 2011–2040, and 2041–2070, under both RCPs. Results predict a decrease in HDDs most significant under RCP8.5. Conversely, it is projected an increase of CDD values for both scenarios. The decrease in HDDs is projected to be higher than the increase in CDDs hinting to an increase in the energy demand to cool internal environments in Portugal. Statistically significant linear CDD trends were only found for 2041–2070 under RCP4.5. Towards 2070, higher(lower) CDD (HDD and HDD + CDD) anomaly amplitudes are depicted, mainly under RCP8.5. Within the five NUTS II

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