Ati Rosemary Mohd Ariffin

Energy audit and prospective energy conservation - Studies at residential college buildings in a tropical region

Purpose – The purpose of this paper is to present the efficiency of electricity use and potential of electricity reduction at 12 residential colleges located at University of Malaya Campus, Kuala Lumpur.Design/methodology/approach – The work presented applies an energy audit when energy consumption data were collected and analysed for a five‐year period. The total savings of electricity used at residential colleges were identified through the difference between average total energy use in a year (kWh) and minimum electricity usage.Findings – The study finds that residential colleges with special features of building layout and arrangement performed better with regard to electricity consumption due to the prior groups superior utilisation of day lighting and natural ventilation. The floor area of the rooms, volume, density, enclosure and facade design, including window design, window area, and window‐to‐wall ratio also influenced the total electricity usage of the residential college buildings. Also, thro...

Satisfaction and perception of residents towards bioclimatic design strategies: Residential college buildings

Successful implementation of bioclimatic design strategies not only reduces energy use, but more importantly increases the resident’s satisfaction. A post-occupancy evaluation, a form of survey method, was used in assessing the satisfaction and perception of residents in two residential colleges, at the University of Malaya, Kuala Lumpur. Both Case Study A (CS-A) and Case Study B (CS-B) represent the uppermost and moderate implementation of bioclimatic design strategies. The results showed that 414 questionnaires were retrieved fully filled by occupants at CS-A while 155 respondents from CS-B returned their questionnaire. The questionnaire was based on a 5-point Likert scale. Respondents were asked to rate the levels of satisfaction and perception with various aspects of the building, including the immediate environment. A detailed survey on thermal comfort had also been done by adopting the predicted mean vote index. As initial findings, the implementations of bioclimatic design strategies at the selected residential colleges were able to provide comfort for the residents.

Energy performance: A comparison of four different multi-residential building designs and forms in the equatorial region

Building sector has been identified as a major energy consumer with nearly half of the worlds energy used is associated with providing environmental conditioning in buildings. Approximately, two third of this is for heating, cooling and mechanical ventilation. Therefore, there is a need for optimizing the building design which collaborates with surrounding environment in enhances the energy conservation programme. Energy consumption evaluation and audits for buildings is the most important step that can contribute to energy conservation. As preliminary studies to this research, four low-rise residential college buildings with specific layout were selected in finding the relationship between green/passive building strategies and energy performance. The study initial approach was to critically analyse the design of the selected buildings through scaled drawings and site visits. Comparison of the two were carefully made to obtain current and post renovation conditions and surroundings as most of the drawings were drawn 30 to 40 years back. The elements of bioclimatic design were implemented as matrixes or criteria, particularly on natural ventilation and day lighting. Then, the energy performance was crucially audited to find out Building Energy Performance (BEP) acknowledged as energy use per unit floor area, and Energy Efficiency Index (EEI) to elaborate the kWh/m2/year of each residential college for five years duration. As initial findings, the implementations of appropriate green building strategies is able to provide positive impacts to the overall energy performance of the residential colleges.

Constructing a Mixed Methods Research Design Exploration of an Architectural Intervention

The aim of this methodological description is to illustrate the application of mixed methods research in architectural design using a hybrid model consisting of a taxonomy development model and an embedded quasi-experimental model. The research employed qualitative and quantitative methods to explore the design of an architectural intervention and determine its effectiveness in improving environmental knowledge, attitudes, and behavior among primary school students. It also outlined strategies adopted to overcome the challenges related to the use of a hybrid design. Combining sequential and embedded mixed methods designs is a relatively new approach in architectural research, providing new insights that contribute to future mixed methods exploration in the field of design and planning.

Advocating Universal Design Features for Kuala Lumpur Accessible Tourism

Accessible tourism is where the tourist destinations and facilities provided by the host country or place are barrier-free to all users especially persons with disabilities (PWDs). Kuala Lumpur (KL) being a developing city is still working on providing seamless mobility and improvement on the accessibility to the PWDs when they travel especially after being declared to be barrier-free city in 2010. This study aims to investigate the provision and the quality of facilities accessible by the PWDs in the selected tourist attraction buildings in the city of KL.

Building Energy Index and Students’ Perceived Performance in Public University Buildings

Numerous studies have shown that students’ learning experience is closely associated with the physical comfort level of their teaching and learning environment. The different strategies or allocation of air-conditioning, mechanical ventilation (ACMV) and lighting systems contribute greatly to the energy performances in the buildings. This study explores the relationship between electricity consumption of the academic buildings of a public university in an urban context and its students’ perceived performance. It seeks to find the answer patterns from unsuspected subjects; whether there is a difference between a lower energy-use building and a higher energy-use building. To achieve the objective, the study adopts the quantitative method of assessing students’ perceived performance through questionnaire survey. The questionnaires, adopted from Building Use Studies, UK, were distributed randomly through convenience sampling to students from two academic buildings in the campus. Both buildings were selected through purposive sampling method with specific inclusion and exclusion criteria. Subsequently, power and energy logger was installed into the same buildings to monitor electricity consumption at specific intervals. For comparison, building energy index (BEI) for each building was calculated. The study found that the building that scored higher in students’ performance, also has higher calculated BEI. As control for indoor comfort account for more than half of the total electricity consumption, the result suggested that electricity consumption influences students’ performance positively. The study also revealed that both buildings’ calculated BEI were lower than recommended by many standards. This suggests that these buildings have extremely high potential of achieving green building status. If executed properly, the university campus, which equates the size of a small city, may achieve green campus status sooner than expected and may lead others in the flagship project towards a low-carbon university campus.

Physical environment as a 3-D textbook: design and development of a prototype

The use of the physical environment as a three-dimensional (3-D) textbook is not a common practice in educational facilities design. Previous researches documented that little progress has been made to incorporate environmental education (EE) into architecture, especially among the conventional designers who are often constrained by the budget and building area requirements. This article presents an exploratory project to develop a prototype for the 3-D textbook. The author does not formulate ideas and concept based on the pre-determined specs in a design brief. Instead, the design solution evolved through a qualitative case study conducted at the Green School in Bali, Indonesia. Data were collected through a series of interviews and on-site observations. The qualitative findings uncovered four design features for the 3-D textbook. A prototype was subsequently developed using the design features as a blueprint. The prototype serves as a testing ground for new ideas as well as a platform to promote awareness and acceptance of the 3-D textbook among the practitioners. Consequently, this article attempted a significant proposition to bring together architecture and EE, thus potentially contributing to a field of knowledge that embraces design and education.