This paper aims to determine the performance of the air well system in a hot and humid tropical climate with existing full-scale air well of single-storey terraced house. The application of air well in residential building widely applied in a traditional building, especially in the Middle East and Europe countries. However, resulted from the development, the application of passive cooling strategies such as air well is gradually replaced by a mechanical cooling system. The aim of the study is to investigate the cooling system role in tropics, where hot and humid climate the overheating of building interior are a critical dilemma due to solar penetration through building fenestration. A field measurement has been carried out in a single storey terraced house with built-in air well in Kuching, Sarawak for 5 days. The field measurement investigates the thermal performance of the single-storey terrace house air well under tropical context. The investigation was measured with U-12 HOBO data logger for temperature and humidity while the air velocity was measured with HD32.3 DeltaOhm measurement logger. Both types of the instrument placed in the air well in a vertical position while another U12 HOBO datalogger placed in a test room with window connected to air well. The outdoor weather data set were measured with HOBO U30. Findings show that the under Malaysia tropical climate, the mean air velocity induced by the air well throughout the measurement days marked as 0.91m/s while during the hottest hour of the measurement days, the air velocity induced in the upper air well could reach 1.09m/s with an outdoor air temperature of 33.6°C and solar radiation of 198 Wh/m². The findings of the study have explained the effectiveness of the air well in providing the thermal performance in the indoor environment and further study on modification of the air well configuration could enhance the airflow and air temperature
Office occupants’ have always preferred workplaces that have windows that connects them to the outside. Window access to the outside can influence occupants’ satisfaction with the combination of other workplace features. This study aims to identify the window and view factors relationship in the workplace, to confirm the reliability and validity of the measurement and structural model. Adopting a cross-sectional survey design, primary data from five offices in the Kogi State of Nigeria with 267 respondents were collected by using the convenience sampling method and analysis was performed with the Statistical Package for Social Science version 23 and AMOS 22.0 version as the modelling tool. The study identified eleven vital factors that are interrelated in the relationship between windows and view in the workplace. They are referred to as latent construct namely; Window distance (WDB), Seating arrangement (SAB), Room height (FHB), Office size (OSB), Window position (WPB), Window Sill level (WLC), Window size (SWC), Window type (TWC), View content (CVC), View satisfaction (VSC), and Occupants’ satisfaction (SAT). The result showed a valid model using the Structural Equation Model, and the effect of the current workplace negligence on occupants’. This study improves the existing knowledge on the window and view relationship in the workplace, and provide suggestions for Facility Managers, Architects, and Interior Designers on maintaining a healthy workplace environment
The urban historic district is one of the man-made places with strong genius loci through its cultural heritage character and values. Architectural heritages are the core element constituting its urban fabric character. However, the emergence of infill buildings that intervene in the urban historic fabric with their conspicuous contrast faç ade architectural design threatens the genius loci of the urban historic districts. Therefore, this paper aims to systematically review the contextual architectural design criteria of infill building faç ade in urban historic districts. Using the content analysis method, this paper extracts the previous scholars' studies on heritage conservation guidelines, contextual infill building faç ade design approaches and the design criteria for the contextual infill building faç ade design in urban historic districts to answer the highlighted issues. In an urban historic district, the contemporary architectural intervention, especially the infill building faç ade design, must critically consider and respond to the existing urban fabric that has long been characterized by the place's genius loci to sustain its cultural heritage character and values. The infill building faç ade design must appropriately be articulated by balancing "compatibility" and "differentiation" elements in its architectural design as well as consider creating a "bond" and having family resemblance with the existing urban fabric of the historic district.
Surrogate view is an element that helps to improve the indoor quality in a windowless office. This study proposed the preference of surrogate view among different types of office workers as an immediate solution in windowless office. Through the survey the most preferred surrogate view among indoor and outdoor workers are the window with sea view 2.95 and 2.86 in the mean. The preferences among worker who spent less than and more than 3 hours are the view to sea which took 2.89 and 2.95 in the mean. The preferences among worker who with and without usage of computer are the view to sea which took 2.96 and 2.88 in the mean
Studies have shown that a very wide range of parameters affect thermal comfort of building occupants. Heat transfer through the roofs has been identified as one of the causes of overheating in building interiors. Building Performance Simulation tools can be used to determine appropriate roof design parameters with optimum thermal performance in tropical climates like Nigeria. However, ensuring the reliability of the simulation results is essential for both occupants and designers. Therefore, this study seeks to verify and validate the accuracy of simulation results of DesignBuilder as a simulation tool for the present research works on roof thermal performance. The study primarily focuses on the impact of roof design on the air temperature in the indoor learning environment. Validation is examined by comparing the measured daily indoor air temperature of Kofar Wambai Secondary School Classroom, Bauchi city data and the simulation results. Comparative analysis indicate that the % deviation of field measured and simulated results for the tested days (18th and 21st September, 2018) were 2.39% and 1.25% respectively. The R2 results indicated 99% and 75% correlation between the simulated and measured indoor temperature on the tested days.These results agreed with the recommendations of a study by (Andelkovic et al, 2016) which reported that the marginal value of R2 for measurements and simulations validation is R2 ≥ 75%. Therefore, DesignBuilder can be employed to evaluate roof thermal performance as well as predict indoor air temperature of classroom buildings.
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