scholarly journals Field Measurement and Subjects' Votes Assessment on Thermal Comfort in High-rise Hostels in Malaysia

2008 ◽  
Vol 17 (4) ◽  
pp. 334-345 ◽  
Author(s):  
N.D. Dahlan ◽  
P.J. Jones ◽  
D.K. Alexander ◽  
E. Salleh ◽  
D. Dixon
Keyword(s):  
Thermal Comfort ◽  
Field Measurement ◽  
High Rise

scholarly journals Analyzing Atrium Volume Designs for Hot and Humid Climates

2019 ◽  
Vol 11 (22) ◽  
pp. 6213
Author(s):  
Aram ◽  
Alibaba
Keyword(s):  
Thermal Comfort ◽  
User Satisfaction ◽  
Simulation Models ◽  
Thermal Simulation ◽  
Simulation Software ◽  
Humid Climate ◽  
High Rise ◽  
North East ◽  
Software Models ◽  
Hot And Humid Climates

The objective of this research was to determine the proper thermal comfort in an atrium design for single-floor, medium-rise, and high-rise buildings based on different proportions, placements, window opening ratios, and internal condition systems. EDSL Tas software was used for the dynamic thermal simulation software models, and all were analyzed based on ASHRAE 55, ISO 7730, and EN 15251 standards to determine which dynamic thermal simulation models had thermal comfort in a hot and humid climate throughout the year. This research found that for naturally conditioned single-floor and medium-rise buildings, when the atrium proportion was 1/2 of the office proportion at the southeast and center atrium location, respectively, had maximum user satisfaction. When the building’s internal spaces were mechanically conditioned with a 1/3 and 1/4 atrium proportion of the office proportion in single-floor and medium-rise buildings, respectively, thermal comfort was acceptable, especially when the atrium was located in the center for single-floor and in the northeast for medium-rise buildings. However, the naturally conditioned high-rise building with a north-east atrium that was 1/4 of the office proportion and a mechanically conditioned high-rise with a center atrium 1/3 of the office proportion had the minimum dissatisfaction throughout the year.

Field measurement of wind-induced stress on glass facade of a coastal high-rise building

2011 ◽  
Vol 54 (10) ◽  
pp. 2587-2596 ◽  
Author(s):  
ZhengNong Li ◽  
DieFeng Luo ◽  
WenHai Shi ◽  
ZhiQi Li ◽  
XiaoHan Liang
Keyword(s):  
Field Measurement ◽  
High Rise ◽  
High Rise Building ◽  
Induced Stress ◽  
Glass Facade ◽  
Glass Façade

scholarly journals The Impact of Local Materials on the Improvement of the Thermal Comfort in Building

2020 ◽  
pp. 22-35
Author(s):  
Amadou Oumarou Fati ◽  
Bonkaney Abdou Latif ◽  
Ouedraogo Souleymane ◽  
S. M. Ky. Thierry ◽  
Mamadou Lewamy ◽  
...  
Keyword(s):  
Thermal Comfort ◽  
Energy Demand ◽  
Building Materials ◽  
Building Design ◽  
Temporal Variations ◽  
Raw Material ◽  
High Rise ◽  
Energy Demands ◽  
The Impact ◽  
Local Materials

The increasing energy demands in the building sector is considered as a main issue and has result both in the energy shortage and also environmental impact such as climate change and global warming. This demand is always increasing due to the high-rise level and also the need of thermal comfort. This paper aims to describe a passive approach to reduce the energy demand for a building through an improvement of the design of the thermal envelope. Within this work, we utilized the thermophysical properties of four building materials: three local materials (compressed earth, lateritic, and raw material) and one modern (Hollow cement) and an energy analysis of the building has been carried out. The numerical optimization of the building design has been performed dynamically by COMSOL Multiphysics software: case study of Ouagadougou and surface is 100m2. Also, the temporal variations in the inside of the room as well as the temperature of the walls and the ceiling with four different materials have been determined. The result shows that, for BLT, the maximum obtained around 22H is 308K, for Adobe it is 309K around 18H30, for BTC it was 309.2K at 20H and finally for cement block it is 310K around 18H. The mean average temperature of the building is low when we use local materials instead of modern one. Then, we conclude that, the use of local materials in the building design is an option for reducing the heat transfer into the room and at the energy consumption.

scholarly journals Investigate the impact of a low u-value framing condition and an insulated curb condition at cantileverd concrete balcony slabs in high-rise MURBS

2021 ◽  
Author(s):  
Chafik Murad
Keyword(s):  
Energy Efficiency ◽  
Thermal Comfort ◽  
Thermal Performance ◽  
Concrete Surface ◽  
Technical Performance ◽  
High Rise ◽  
Surface Temperatures ◽  
U Value ◽  
Thermal Bridging ◽  
The Impact

Cantilevered concrete balcony slabs are being investigated in high-rise (MURBs) to control thermal bridging in terms of energy efficiency and thermal comfort where the use of a proprietary thermal break was the prime application as a solution to improving energy efficiency. This MRP investigated the thermal performance of using a lower U-value framed glazing condition and an insulated curb condition and developed assemblies in scenarios that were simulated in THERM, and focused on the technical performance of thermal comfort benefit of insulated curb condition of 12.7 mm thick EPS. Concrete surface temperatures were significantly increased in values from 4.8 °C to 9.6 °C and from 6.2 °C to 10.0 °C above balcony slab and from 6.7 °C to 10.8 °C below slab when an insulated curb condition was used in conventional scenarios and in a lower U-value framed condition scenario with no proprietary thermal break added. U-values are reduced 10% to 18% for the upper surface of balcony slab and 4% reduction of the overall U-values when an insulated curb condition is incorporated.

scholarly journals Assessment of Physiological Equivalent Temperature (PET) in Transitional Spaces of a High-Rise Building

2016 ◽  
Vol 1 (1) ◽  
pp. 348
Author(s):  
Nooriati Taib ◽  
Zalila Ali
Keyword(s):  
Thermal Comfort ◽  
Natural Ventilation ◽  
Publishing House ◽  
Office Building ◽  
Equivalent Temperature ◽  
Energy Usage ◽  
Physiological Equivalent Temperature ◽  
High Rise ◽  
Transitional Spaces ◽  
International Publishing

One passive approach that can significantly reduce energy usage in high-rise buildings is through the creation of non-air conditioned spaces such as transitional spaces. Optimizing passive design would reduce wastage associated with the building’s energy consumption. The study measures the thermal comfort of three types of transitional spaces (sky court, balcony, and rooftop) in a high-rise office building. Based on the assessment of Physiological Equivalent Temperature (PET), the outcome showed significant differences in PET in all locations in both wet and dry season. The effectiveness of such area can be improved with the contributions of landscape, maximizing natural ventilation and day lighting where possible.© 2016. The Authors. Published for AMER ABRA by e-International Publishing House, Ltd., UK. 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.Keywords: Thermal comfort; transitional spaces; high-rise; Physiological Equivalent Temperature

scholarly journals In-situ Measurement of Pedestrian Outdoor Thermal Comfort in Universities Campus of Malaysia

2019 ◽  
Author(s):  
Nurnida Elmira Othman ◽  
Sheikh Ahmad Zaki ◽  
Nurul Huda Ahmad ◽  
Azli Razak
Keyword(s):  
Thermal Comfort ◽  
Field Measurement ◽  
Thermal Sensation ◽  
Outdoor Thermal Comfort ◽  
View Factor ◽  
Thermal Preference ◽  
Equivalent Temperature ◽  
Physiological Equivalent Temperature ◽  
Sky View Factor

The present study is intended to evaluate an outdoor thermal comfort at two universities campus in Malaysia. Field measurement and questionnaire survey were conducted simultaneously to assess the microclimatic condition and pedestrian thermal sensation. A total of 3033 samples were collected at seven different sky view factor (SVF) values that range from 0.2 to 0.9. The physiological equivalent temperature (PET) was estimated to evaluate outdoor thermal comfort. It was observed that at a highly shaded area (SVF < 0.35) the respondent’s thermal sensation vote (TSV) are neutral (> 25%), acceptable for thermal acceptance vote (TAV) (> 50%) and no change (> 50%) for thermal preference vote (TPV). For moderate shaded (0.35 ≤ SVF ≤ 0.70) TSV was voted as hot (> 25%), acceptable for TAV (40%), and prefer slightly cooler for TPV (>50%). For less shaded area (0.70 < SVF ≤ 1), TSV was voted as hot and very hot (> 25%), acceptable for TAV (>40%) and prefer slightly cooler for TPV (> 40%). Moreover, the PET value increases simultaneously with the increase of SVF. Results thus suggest that at any given activities such as sitting, walking, and standing also caused effects slightly on the way people thermally perceive it during the on-campus daytime.

The effect of building envelope on the thermal comfort and energy saving for high-rise buildings in hot–humid climate

2016 ◽  
Vol 53 ◽  
pp. 1508-1519 ◽  
Author(s):  
Seyedehzahra Mirrahimi ◽  
Mohd Farid Mohamed ◽  
Lim Chin Haw ◽  
Nik Lukman Nik Ibrahim ◽  
Wardah Fatimah Mohammad Yusoff ◽  
...  
Keyword(s):  
Thermal Comfort ◽  
Energy Saving ◽  
Building Envelope ◽  
Humid Climate ◽  
High Rise ◽  
Hot Humid Climate
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