scholarly journals Daylighting Evaluation and Optimisation of Window to Wall Ratio for Lecture Theatre in the Tropical Climate

2021 ◽  
Vol 8 (1) ◽  
pp. 20-35
Author(s):  
Moses Iorakaa Ayoosu ◽  
◽  
Yaik-Wah Lim ◽  
Pau Chung Leng ◽  
Olusegun Moses Idowu ◽  
...  
Keyword(s):  
Architectural Design ◽  
Spatial Configuration ◽  
Tropical Climate ◽  
Base Case ◽  
Floor Plan ◽  
Humid Climate ◽  
Design For Sustainability ◽  
Ceiling Height ◽  
Lecture Theatre ◽  
Hot Humid Climate

A base case model is a more potent dose for applied research; the passive architectural design for sustainability requires optimised experiments. However, experimenting with physical developments require construction and deconstruction until they achieved the optimal scenario. These wastes resources and time; hence, base models' development as useful instruments in the optimisation design process is desirable. Lecture theatres in universities have no specific design model whereby optimising one may not apply to the other. Therefore, this research evaluated a base model for lecture theatre regarding spatial configuration, daylighting potentials, and optimised window-to-wall ratio (WWR) for tropical daylighting. A study of ten existing lecture theatres in eight universities within eight states in Nigeria's hot-humid climate was analysed descriptively for the base model. The study employed Simulations with IES-VE software. The daylighting performance analysis adopted the daylighting rule of thumb, daylight factor, work plane illuminance (WPI), and WPI ratio. The results show that a typical lecture theatre in the study area has a dimensional configuration of 12×20 m floor plan, 6 m ceiling height, and a window wall ratio (WWR) of 13%. In the deduced base model, 4H was required for adequate daylighting against the thumb's 2.5 H daylighting rule. The research concludes a low window-wall ratio with poor daylighting quality and quantities in the base model; therefore, it implies that the daylighting was not a criterion in the designs. However, the experiment revealed a progression in daylighting performance with an increase in WWR from the base case until 30% WWR. Beyond that, there was a decline in the daylighting performance. Therefore, 30% WWR was optimal for daylighting performance in lecture theatre retrofitting within the tropical climate.

scholarly journals PRINSIP DESAIN ARSITEKTUR BIOKLIMATIK PADA IKLIM TROPIS

2019 ◽  
Vol 6 (2) ◽  
pp. 87
Author(s):  
Jarwa Prasetya Sih Handoko ◽  
Ikaputra Ikaputra
Keyword(s):  
Architectural Design ◽  
Design Principles ◽  
Tropical Climate ◽  
Climatic Conditions ◽  
Building Envelope ◽  
Natural Conditions ◽  
Humid Climate ◽  
Hot Arid Climate ◽  
Hot Humid Climate ◽  
Tropical Climates

Arsitektur Bioklimatik adalah adalah suatu pendekatan desain yang mengarahkan arsitek untuk mendapatkan penyelesaian desain dengan mempertimbangkan hubungan antara bentuk arsitektur dengan lingkungan iklim daerah tersebut. Pendekatan ini menekankan pada aspek pemenuhan kesehatan dan kenyamanan ruangan bagi pengguna dan minimalisasi penggunaan energi pada bangunan. Sedangkan Tropis merujuk pada terminologi letak geografis daerah di sekitar equator diantara Garis Tropic of Cancer dan Tropic of Capricorn. Kajian ini membahas prinsip desain Arsitektur Bioklimatik pada iklim tropis. Dengan demikian dapat disusun theoritical framework terkait prinsip desain arsitektur pada iklim tropis. Metode yang digunakan pada kajian ini dengan menggunakan studi referensi. Dari kajian ini dapat disimpulkan bahwa Prinsip Desain Arsitektur Bioklimatik pada Iklim Tropis terdiri dari 2 (dua) tipe meliputi Prinsip desain untuk bangunan pada daerah Iklim Tropika Basah ( Hot humid Climate ) dan Prinsip desain untuk bangunan pada daerah iklim Tropika kering ( Hot Arid Climate ). Hal ini menyesuaikan kondisi iklim dimana bangunan tersebut didesain.PRINCIPLES OF BIOCLIMATIC ARCHITECTURAL DESIGN IN THE TROPICAL CLIMATE The growth of building construction that does not consider natural conditions causes the potential for environmental degradation due to energy consumption in buildings, which and results in the depletion of natural resource. In addition to the occurrence of global climate change phenomena that foster energy-intensive for buildings to fulfill the physical comfort. This condition raises awareness of the importance of architectural design based on local natural conditions including local climatic conditions or the utilization of bioclimatic potential. Bioclimatic Architecture is a design approach that directs architects to get a design finish by considering the relationship between architectural forms and the climate environment of the area. This study discusses the principles of Bioclimatic Architecture design in tropical climates. Thus the theoretical framework is expected to be arranged related to the principles of architectural design in tropical climates. Tropical climate refers to the terminology of the geographical location of the area around the equator between the Tropic of Cancer and Tropic of Capricorn Lines. The method used in this study is a literature study or reference study. From this study it can be concluded that the principles of Bioclimatic Architectural Design in Tropical Climates consist of 2 (two) types, including design principles for buildings in the Hot Humid Climate area which has 2 seasons and design principles for buildings in dry tropical climate regions (Hot Arid Climate) with 4 seasons. These two design principles are influenced by several different climatic conditions between these two climatic regions. These two regions generally have high air temperatures; the difference is the diurnal temperature difference between the two climate regions. This condition requires a different response, especially in the design of the building envelope, where the design of the building envelope influences the level of heat gain and heat loss in the effort to create indoor thermal comfort in the building.

scholarly journals Indoor Thermal Performance of Ventilated Dwellings Using Fly Screens in the Hot-Humid Climate of Chennai, India

2009 ◽  
Vol 4 (2) ◽  
pp. 150-157 ◽  
Author(s):  
Vijayalaxmi J ◽  
S.P Sekar
Keyword(s):  
Solar Radiation ◽  
Air Temperature ◽  
Thermal Performance ◽  
Indoor Air ◽  
Tropical Climate ◽  
Summer Period ◽  
Humid Climate ◽  
Floor Area ◽  
Hot Humid Climate ◽  
Heating Up

In a hot-humid tropical climate, indoor thermal performance can be enhanced by comfort ventilation. Indoor ventilation depends upon building opening size. But risks involved in providing openings include ingress of mosquitoes and insects which thrive in the tropical climate. A practical and prevalent option to prevent insects in ventilated dwellings of the tropical, hot-humid city of Chennai, India is through the use of fly screens. Fly screens, when used over openings, prevent a certain quantum of solar radiation and wind from entering inside the rooms. Reduced direct solar radiation prevents the indoors from heating up, while reduced wind movement prevents the cross ventilation. Therefore, it is important to know the indoor thermal performance of ventilated rooms in the presence of fly screens with changing opening sizes. The criterion to evaluate indoor thermal performance in this paper is indoor air temperature. The aim of this research is to investigate the influence of fly screens on openings with varying sizes, in a naturally ventilated dwelling in the hot-humid climate of Chennai, India, during the summer period. The results of the study show that fly screens raise the indoor air temperature when openings are in the range of 100% to 35% of the room floor area. There is no significant change in the indoor air temperature when the opening sizes are less than 30% of the room floor area.

scholarly journals Daylighting Performance Assessment of Side-Lit University Lecture Theatres in the Hot-Humid Climate of Makurdi in Nigeria

2020 ◽  
Vol 8 (5) ◽  
pp. 4584-4589
Keyword(s):  
Teaching And Learning ◽  
Digital Camera ◽  
Visual Comfort ◽  
State University ◽  
Humid Climate ◽  
Post Occupancy Evaluation ◽  
Evaluation Approach ◽  
Lighting Conditions ◽  
Lecture Theatre ◽  
Hot Humid Climate

Daylighting is required to enhance visual comfort; whereas its illumination provides renewable functional interior lighting for specific programmes. Hence, this study examines the levels of daylight illumination for teaching and learning in two lecture theatres each located at the Federal University of Agriculture Makurdi (UAM) and Benue State University Makurdi (BSU) in Makurdi, Nigeria. The two buildings selected for the daylighting performance employed post-occupancy evaluation approach. A digital camera was employed to take photographs, whereas digital light meters were employed to evaluate the levels of illumination on the work plane. The results showed that 80% of the study space has inadequate indoor daylight illumination quantity and distribution as well as poor daylight ratios of 1.1and 0.9 for UAM lecture theatre and BSU lecture theatre, respectively Hence, the lighting conditions in the selected buildings fall short of the international lighting benchmarks (IESNA). Therefore, a pragmatic daylight design strategy is required to enhance daylight levels in the lecture theatres for energy-saving and visual comfort as well as onwards design and fusion in the national building code.

FIELD ASSESSMENT OF BLACK SPOT RESISTANCE IN ROSES IN A HOT HUMID CLIMATE

2010 ◽  
pp. 115-120 ◽  
Author(s):  
D.H. Byrne ◽  
N. Anderson ◽  
M. Orwat ◽  
V. Soules
Keyword(s):  
Black Spot ◽  
Humid Climate ◽  
Field Assessment ◽  
Hot Humid Climate

scholarly journals Greenhouse Daylight Illuminance for Users’ Satisfaction in Hot and Humid Climate

2021 ◽  
Vol 6 (16) ◽  
pp. 81-91
Author(s):  
Amalina Safiah Jasni ◽  
Sabarinah Sh Ahmad ◽  
Mariam Felani Shaari ◽  
Ricardo B Sánchez
Keyword(s):  
Energy Efficient ◽  
Publishing House ◽  
Humid Climate ◽  
Energy Efficient Buildings ◽  
Design Attributes ◽  
International Publishing ◽  
Hot And Humid Climate ◽  
Daylight Performance ◽  
Hot Humid Climate ◽  
Open Access Article

The greenhouse is vital to protect indoor crops from the harsh hot-humid climate. This study firstly identifies design attributes of greenhouses such as dimension, shapes, orientation, and shading. Secondly, it assesses the impacts of design attributes on the greenhouse daylight performance using VeluxVisualizer. The results showed an increase in the number of skylights caused higher average daylight illuminance in the greenhouse. All the models passed the requirement for plants with small sunlight claim between 7 and 9 hours per day. This study paves the way for energy-efficient buildings with the aid of building simulation to benefit the users. Keywords: Greenhouse Design Features, Daylight Simulation, Hot and Humid Climate eISSN: 2398-4287© 2021. The Authors. Published for AMER ABRA cE-Bs by e-International Publishing House, Ltd., UK. This is an open access article under the CC BYNC-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/Africans/Arabians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia. DOI: https://doi.org/10.21834/ebpj.v6i16.2711

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