Project

SUSTAINABLE GREEN ENVIRONMENT

Goal: Bonding with nature

Date: 1 January 2015 - 31 December 2023

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Project log

Aliyah Nur Zafirah Sanusi
added 3 research items
This paper presents an investigation of Earth Pipe Cooling Technology, conducted in a university campus in Malaysia. It was intended to seek for a passive cooling alternative to air-conditioning. The technology, where the ground was used as a heat sink to produce cooler air, has not been investigated systematically in hot and humid countries. In this work, air and soil temperatures were measured. At 1 m underground, the result is most significant, where the soil temperature is 6 °C and 9 °C lower than the maximum ambient temperature during wet and hot and dry season, respectively. Polyethylene pipes were buried around 1.0 m underground and temperature drop between pipe inlet and outlet were compared. A significant temperature drop was found in these pipes: up to 6.4 °C and 6.9 °C depending on the season of the year. The result shows the potential of Earth Pipe in providing low energy cooling in Malaysia.
This chapter presents an extended exploration of the performance of low-energy earth–air heat exchanger (EAHE) cooling in hot and humid Malaysia from the published work of Sanusi (2013). The increasing demand of air-conditioning for cooling purposes motivates this investigation in search for better cooling alternatives. The passive technology, where soil underground was used as a heat sink to produce cooler air, has yet to be investigated further in hot and humid countries. This work, the passive technology, is tested by carrying out two interconnected field investigations: soil temperature measurement and the earth pipe cooling experiment for 1 year. In 1 year, soil temperature distribution at 1 m depth fluctuates, influenced by the different seasons in a year. However, the soil at 1 m depth is cooler than deeper soil during the wet season. Therefore, for investigating the EAHE cooling performance for 1 year, the pipe was buried at 1 m depth at the same test site. A significant temperature drop was found in the 1-m-depth-buried pipe: up to 6.3 and 8.6 °C, respective to the seasons of the year. Thermal comfort of air temperature at the buried pipe outlet was analyzed with Khedari thermal comfort chart, and the result has shown that the buried pipe outlet air temperatures are within the range of thermal comfort conditions for hot/humid countries. This study has showed a potential of earth pipe cooling technology in providing low-energy cooling in buildings in Malaysia.
Fadzidah Abdullah
added 5 research items
Urban parks varies in size ranging from 400-30 000 ha all over the world and one thing in common they possessed is that urban trees play an important role in mitigating the impacts of climate change by sequestering atmospheric carbon dioxide (CO2). Calculation of carbon (C) stored and sequestered by urban trees is the actual and critical assessment of the real potential role of an urban park in reducing atmospheric CO2. This study provides a case study of the quantification of C storage and sequestration by two urban parks with two different landscape setting design in Subang Jaya and Damansara, a rapidly urbanized and populated city in West coast of Malaysia. The C storage or sequestration rate was estimated by biomass equations, using field inventory and analysis survey data. The calculation of biomass provides reasonably accurate estimation of the amount of carbon that was sequestered from trees over the years. The findings revealed that different landscape setting design contribute to marked differences in carbon stored. Curvilinear landscape setting design was found to sequester more carbon compared to informal landscape setting even though total green and built up areas for both sites are similar. These findings provide insights and better understanding of the role of urban park as carbon sink.
The cultural landscape is regarded as being of the most complex designs which involves interactions between man, nature, cultural values and the associated built environment. Issues relating to the degradation of the cultural landscape are often caused by rapid urbanisation and industrialisation. The traditional Malay Landscape exists through harmoniously balanced interactions between man, nature and culture together with the traditional house, and contains unique and interesting features that have to be preserved as one of the most important cultural heritage sites. However, the preservation of heritage in Malaysia tends to focus more on architectural buildings rather than adopting a holistic approach that includes the surrounding environment of where the building is located. The absence of such approach has contributed towards the loss of the traditional Malay Landscape. This study highlights the changes and threats in the preservation of the traditional Malay Landscape by focusing on the preservation of a traditional house compound. The research employs a qualitative approach which involves site visits, interviews, and document analysis concerning the research topic. The old Malay villages located in Tumpat, Kelantan and Alor Gajah, Melaka have been selected as case studies. The findings reveal that the changes and threats include four underlying aspects; Unsuitable and inappropriate uses, Ownership Problems, Inadequate fund and consultation and Current development trends. The study concludes that the traditional Malay Landscape is facing numerous changes and threats in terms of its physical characteristics, environmental aspects and cultural values. In addition, the study reveals that traditional Malay landscape is not seen here as an integrating, holistic concept.
The study is intended to evaluate the comfort level of learning environment in three naturally ventilated colonial schools in Malaysia through the voice of students aged between 13 and 17. This study focuses on the influence of the colonial school classrooms physical environment towards the students’ comfort and behaviour. The research has two objectives: To evaluate post-occupancy comfort level and behavior in the naturally ventilated colonial schools and to suggest design elements that could improve the comfort level of a school classroom. Observations and investigations were conducted in three colonial schools; Victoria Institution, Methodist Girls Secondary School and Maxwell Secondary School in the morning session, between 7:45 a.m. and 1:00 p.m. Survey questionnaires were distributed to one classroom of each school and simultaneously, an inventory of each classroom physical environment was recorded. It was found that the observed classroom differs slightly in the window-to-wall ratio, window size and occupancy density, which have an impact on the indoor environment and the students’ comfort and behaviour. From the survey results, among the three schools, the students in the Methodist Girls Secondary School are mostly comfortable throughout the morning session. In conclusion, several design elements, which can be adopted from the architecture of the colonial period, that make them conducive to learning environment are window-to-wall ratio, window sizes and occupancy density.
Fadzidah Abdullah
added a project goal
Bonding with nature