摘要：The attractiveness of biodiesel as an alternative fuel compared to fossil fuels because it has many advantages such as the availability of abundant raw materials, more environmentally friendly, high combustion efficiency, low sulphur content, high cetane number and biodegradability. Making biodiesel from straight vegetable oil (VGO) has been done through the catalytic hydrogenation process. A VGO of callophylum inophyllum oil was treated via degumming and neutralisation to remove all impurities before hydroprocessing. Hydroprocessing was carried out in a 500ml autoclave at 30 – 50 MPa of initial hydrogen pressure, 300 – 400oC of reaction temperature and equipped with stirrer and cooling system. NiMo/Al2O3 catalyst was activated with CS2 mixture at 370oC prior to the reaction. Some physical and chemical properties of the catalytic hydroprocessing product have been investigated in accordance to ASTM standard. The measurement result of product varies according to the operation condition. The result showed that callophyllum inophyllum oil can be used as raw material for biodiesel production over NiMo/Al2O3. Sulfided NiMo/Al2O3 catalysts are preferred due to high diesel yield.
其他摘要：This paper discusses the importance of understanding the ecology as part of architectural education. Rather than focusing on the heat phenomenon as frequently researched, this paper explores the opposite ideas by identifying the concept of cool pocket and designing it as a mean for heat mitigation in a tropical built environment. Recent researches show that providing a microclimate that responds human thermal comfort can contribute to the building energy performance and at the same time promote activities in outdoor space. The relation and interaction among various microclimate factors with the land, water body, arrangement of vegetations, building’s geometry and configurations, create different scenarios of the thermal condition, including possible cool pocket. Using air temperature and wind as indicators, possibilities of cool pocket will be explored and investigated through CFD Simulation. The result shows the importance of ecological understanding as part of designing cool pocket in a tropical context in a learning process and scenario-based simulation in developing design strategies.
