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Full-Text Articles in Engineering
Potassium Hydroxide Catalyst Supported On Palm Shell Activated Carbon For Transesterification Of Palm Oil, Abdul Aziz Abdul Raman
Potassium Hydroxide Catalyst Supported On Palm Shell Activated Carbon For Transesterification Of Palm Oil, Abdul Aziz Abdul Raman
Abdul Aziz Abdul Raman
In this study, potassium hydroxide catalyst supported on palm shell activated carbon was developed for transesterification of palm oil. The Central Composite Design (CCD) of the Response Surface Methodology (RSM) was employed to investigate the effects of reaction temperature, catalyst loading and methanol to oil molar ratio on the production of biodiesel using activated carbon supported catalyst. The highest yield was obtained at 64.1 °C reaction temperature, 30.3 wt.% catalyst loading and 24:1 methanol to oil molar ratio. The physical and chemical properties of the produced biodiesel met the standard specifications. This study proves that activated carbon supported potassium hydroxide …
Economic Analysis Of End-Of-Life Computer Systems In Educational Institutions, Elif A. Kizilkaya, Surendra M. Gupta, Dincer Mehmet
Economic Analysis Of End-Of-Life Computer Systems In Educational Institutions, Elif A. Kizilkaya, Surendra M. Gupta, Dincer Mehmet
Surendra M. Gupta
In this paper we address the operational and economical aspects of EOL computer systems at educational institutions. To this end we present an actual case study of a major university in Boston and provide an economical analysis of different options such as disposal, disassembly, recycling, reuse and re-sale of these systems. We recommend a new procedure that will improve the collection and handling processes leading to a structured decision making methodology.
Inventory Balancing Of Post-Usage Components Of A Disassembly Line, Surendra M. Gupta, Badr O. Johar
Inventory Balancing Of Post-Usage Components Of A Disassembly Line, Surendra M. Gupta, Badr O. Johar
Surendra M. Gupta
In recent years, disassembly has gained a lot of attention due to its role in efficiently recovering valuable materials, parts, and subassemblies from end of life (EOL) products. This is due to the rigid environmental legislation, the economical and environmental benefits from reusing primary materials instead of virgin resources and the increase in environmental awareness and concerns of the consumers. However, the practice of recovering components and materials is challenging, as there are many associated complications that are unique to the disassembly process such as monitoring and controlling the inventory of core products and disassembled parts and the ability to …