41 research outputs found

    Perumahan Terupaya: Kaitan Antara Ruang Dan Aktiviti

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    This survey is about affordable housing that covers relation betweens the need of space and activit), E.t the low cost housing area. The location of the survey is Kuching ( Petra Jaya Phase IT Low Cost Housing Area) and Siol Kanan Low Cost Housing Area (Taman Sukrna ). This survey concentrates on the real affordable phase of the occupants at the survey area after they live at the house within certain period. The affordable phase is related with the need of the space and activity and its effect to the house renovation .The eadystage of the survey is to make reference towards the survey theory and to get data from the related department that involves with housing. Apart from that, the preparation and the distribution of the questionaire to the respondents at the survey area was done in order to analyse it based on the objective of the survey. Kajian ini adalah mengenai perumahan terupaya merangkumi perkaitan di antara keperluan ruang dan aktiviti di kawasan perumahan kos rendah. Lokasi kajian yang di pilih terletak di di bandaraya Kuching iaitu kawasan Perumahan Kos Rendah Petra Jaya Fasa II dan Perumahan Kos Rendah Siol Kanan (Taman Sukma). Kajian ini lebih tertumpu kepada tahap keupayaan sebenar penghuni di kawasan kajian setelah meIidllduk.i nl1nah berkenaan dalam tempoh masa tertentu. Tahap terupaya dikaitkan dengan keperluan ruang dan aktiviti dan kesannya terhadap pengubahsuaian rumah . . Peringkat awal kajian adalah membuat rujukan terhadap teori kajian di samping mendapatkan data-data daripada jabatan yang berkaitan dengan perumahan. Selain daripada ini, penyediaan dan pengedaran borang kaji selidik kepada responden-responden di kawasan kajian juga dijalankan bagi penganalisan berlandaskan objektif yang telah ditentukan

    Procurement Performance and Supplier Management Measurement Issues: A Case of Malaysian Private Company

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    The rising material and operational cost for manufacturers in medical device industry is of concern to many organizations. As such, its imperative measurement of procurement and supplier performance established which will enable competitive advantage and provide a framework to stakeholders for continuous improvement. The main objective of this paper is to develop a procurement and supplier performance measurement system at ABC Sdn Bhd (not real name). By conducting literature reviews in procurement performance measurement and supplier performance measurement. Key components of supply chain together with the resources, procedures and output, a model is been developed. Additionally, a system has been established with a set of generic measures and six perspectives. The case study conducted at the ABC Sdn Bhd. Medical applies to model develop to describe the procurement department within the supply chain activities. Results shows supply chain department has already made a good progress in measuring procurement process through the implementation of supplier development program. Data that are manually collected but not properly utilized. Few areas need to measure include cycle time of delivery, order processing time, effectiveness, efficiency and reliability. Though a lot of hard work was involved, the advantages of establishing a measurement system outweigh the costs and efforts involved in its implementation. Results of key performance index measurements provide stakeholders with critical information on efficiency and effectiveness of the procurement departments work

    Área de janela e dimensões de ambientes para iluminação natural e eficiência energética: literatura versus simulação computacional

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    Windows may be responsible for a major part of heat gains or losses in a building. If not carefully considered, windows may often contribute to a high energy consumption in a building. Large window areas may provide good daylight provision and a good view, but they also allow for correspondingly large heat gains or losses that will affect the energy consumption of the building. This paper compares results obtained from computer simulation by using the VisualDOE programme with information obtained in the literature about window area for view and also about room dimensions to allow for a better daylight provision. It is concluded that window areas recommended for view tends to be larger than those recommended for energy efficiency and are therefore not adequate. This implies that by specifying a minimum window area for view rather than a window area to optimise the energy efficiency of the building, might incur a higher energy consumption. It was also verified that shallow rooms, as recommended in the literature for better daylight provision, are not appropriate to allow for low energy consumption.As janelas podem ser responsáveis por grande parte dos ganhos ou perdas de calor em edificações. Quando suas dimensões não são cuidadosamente determinadas, as janelas podem contribuir para aumentar o consumo de energia de edificações de forma significativa. Janelas amplas podem proporcionar níveis mais altos de iluminação natural e melhor vista para o exterior, mas também podem permitir maiores ganhos ou perdas de calor, o que refletirá no consumo de energia de edificações condicionadas artificialmente. Este artigo confronta resultados obtidos através de simulações computacionais utilizando o programa VisualDOE com informações obtidas na literatura sobre área de janela para se garantir vista para o exterior e também sobre dimensões adequadas para se permitir o melhor aproveitamento de iluminação natural. Conclui-se que as áreas de janelas recomendadas na literatura para garantir vista para o exterior são, na maior parte dos casos, inadequadas, pois tendem a ser maiores do que aquelas obtidas nas simulações para garantir eficiência energética. Também se constata que ambientes de pouca profundidade, como o recomendado na literatura para se permitir melhor aproveitamento da iluminação natural, não são os mais adequados para se garantir menor consumo de energia

    Performance of Low Cost Alternative Radiant Cooling Panel in Malaysia

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    Radiant panel cooling is still considered uncommon in Malaysia due to unavailability of local manufacturers with limited architects or engineers who are familiar in the system. The initial construction cost for radiant cooling system may be higher than air system and not forgetting the need for a smaller supplementary air system to dehumidify the air to avoid condensation which is an inherited problem of the system in hot and humid region. Promotion and public awareness is lacking in the country and very much dependable on government demonstration program of green technology application where only a few governments owned building having such system. With the aim of long term energy and cost saving this study looks into the development of custom design and locally assembled low cost radiant cooling panel and how its performance in comparison to its overseas and more expensive counterpart could help in provide alternative cheaper building cooling system. Custom build cooling panels with selected materials were constructed and tested to find out its cooling capacity. Finite Element Method (FEM) software was used to establish a design chart to assist in the design and sizing of the alternative radiant panel for Malaysian residential house. The experiment shows that cooling performance in term of mean surface temperature and its cooling capacity is almost identical to its overseas counterpart. Use of cooling radiant panel with free night cooling of water as its chill water supply shows a significant energy saving potential while at the same time provide an acceptable room thermal comfort. Given the local made product having similar performance and suits local condition the technology could grow and be applied with confidence.       Â

    A literature review on the improvement strategies of passive design for the roofing system of the modern house in a hot and humid climate region

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    Increase of indoor temperature compared with outdoor temperature is a major concern in modern house design.Occupants suffer from this uncomfortable condition because of overheating indoor temperature.Poor passive design causes heat to be trapped, which influences the rise in indoor temperature.The upper part, which covers the area of the roof, is the most critical part of the house that is exposed to heat caused by high solar radiation and high emissivity levels.During daytime, the roof accumulates heat, which increases the indoor temperature and affects the comfort level of the occupants.To maintain the indoor temperature within the comfort level, most house designs usually depend on mechanical means by using fans or air conditioning systems.The dependence on a mechanical ventilation system could lead to additional costs for its installation, operation, and maintenance. Thus, this study concentrates on reviews on passive design and suggests recommendations for future developments.New proposals or strategies are proposed to improve the current passive design through ventilated and cool roof systems. It is possible to achieve the comfort level inside a house throughout the day by reducing the transmitted heat into the indoor environment and eliminating the internal hot air.These recommendations could become attractive strategies in providing a comfortable indoor temperature to the occupants as well as in minimizing energy consumption

    Procurement performance and supplier management measurement issues: a case of Malaysian private company

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    The rising material and operational cost for manufacturers in medical device industry is of concern to many organizations. As such, it’s imperative measurement of procurement and supplier performance established which will enable competitive advantage and provide a framework to stakeholders for continuous improvement. The main objective of this paper is to develop a procurement and supplier performance measurement system at ABC Sdn Bhd (not real name). By conducting literature reviews in procurement performance measurement and supplier performance measurement. Key components of supply chain together with the resources, procedures and output, a model is been developed. Additionally, a system has been established with a set of generic measures and six perspectives. The case study conducted at the ABC Sdn Bhd. Medical applies to model develop to describe the procurement department within the supply chain activities. Results shows supply chain department has already made a good progress in measuring procurement process through the implementation of supplier development program. Data that are manually collected but not properly utilized. Few areas need to measure include cycle time of delivery, order processing time, effectiveness, efficiency and reliability.Though a lot of hard work was involved, the advantages of establishing a measurement system outweigh the costs and efforts involved in its implementation. Results of key performance index measurements provide stakeholders with critical information on efficiency and effectiveness of the procurement department’s work

    Technology acceptance: Malaysian industrialised building system (IBS) case

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    In embracing globalisation, it is necessary for all industries, including the AEC/FM industry, to be equipped with relevant technology.One such technology available for the sector is the industrialised building system (IBS).Since 1998, a substantial work of campaign in order to encourage the use of IBS in Malaysia has been done by Construction Industry Development Board (CIDB). For example providing large funds for research, creating standard through various training and promotional programmes. Previous studies have shown that using IBS can enhanced the management of project quality, automatically save cost and led to less rectification work of construction project. However, result revealed the adoption of IBS in Malaysia construction industry is still far from government desired. Disintegration among stakeholders during the design stage has been identified as one major barrier for implementing IBS. As such, this paper explores the potential solutions to reduce disintegration.The research presented uses focus groups to obtain qualitative data.It was found that increased collaboration and team integration, such as team accountability, structural organisation and operation in terms of work processes and environment will enhance the IBS adoption in the Malaysian construction industry

    A Passive Malaysian Residential Building With A Hydronic Radiator

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    This paper presents a study to find a ‘green’ alternative to the conventional air conditioner seen on the walls of many residential buildings in Malaysia. EnergyPlus®, the official building simulation software of the US Department of Energy, is used to model a row of four units of modern low cost terrace housing, end walls facing East and West to minimize exposure to the sun’s ray. The high altitude of the tropical sun heats the metallic roofs to above 60°C during the day and the attic is naturally cooled by outdoor air infiltration through effective leakage area of 2342m2 per unit. Insulation of R-value 2.5 (m2.K)/W is added above the ceilings. Simulations are run with outdoor dry bulb temperatures that are exceeded, on average, by 0.4% (35 hours) in a year, for Kuching, in East Malaysia. Typical meteorological year data shows that the maximum nightly temperatures in Kuching are about 25°C and in West Malaysian cities with World Meteorological Organisation stations are about 26°C. When radiative heat loss to the dark night sky is included, water can be cooled to 25°C. Preliminary simulations verify that beam solar radiation enters through the windows, and external window shades lower the maximum indoor temperature in the hottest West end unit, unoccupied, by 0.6°C to 30.5°C. Night cooled water circulated to a hydronic radiator, then lowers the maximum ‘well-mixed’ operative temperature of the unit, occupied, to below 30.2°C. The indoor air is stratified to a hotter upper and a lower cooler layer, and the occupant’s environment is comfortable with air speeds of 0.8m/s

    A review study of maintenance and management issues in Malaysian commercial building towards sustainable future practice

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    Good management of the building will be able to influence the quality of the buildings that remain long, safe and beautiful without any damage and problems. This research paper aims to explore the issue of maintenance and management that appear in managing the commercial building in Malaysian construction and property industry. The data in this research has been gathered through the reviewing process of secondary data such as journals, proceeding, thesis etc. in the area that related to maintenance and management issue in commercial building. As highlighted by previous study, building a good management can ensure that the facilities available in the building are well and meet the standard. Thus, exposure to the problems and needs in the management of the building would be able to improve the quality of building management systems to be more effective and fulfil the client needs and features

    Reinventing traditional Malay house for sustainable housing design: Obstacle and proposed solution

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    Traditional Malay House design has the key of energy efficiency dwelling to create a sustainable housing. Today, modern houses are massively built replacing the Malaysia’s heritage house.Despite of this rapid development, the owners are aware on the drawback of this type of houses.Therefore, this study is conducted to investigate factors of developers reluctant to build the Traditional Malay House and correct the public misconception toward the housing perception.Survey questionnaire and in-depth interview were conducted.The results indicate that costing is the major problem for housing developers to construct Traditional Malay House
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