Examinando por Autor "Mulozi, Lungowe"
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- ÍtemRestringidoPotential of cashew nut shell liquid (CNSL) as an alternative to kerosene for lighting.(Universidad EARTH, 2018-12) Mulozi, Lungowe; Linkimer, MildredThe world dependency on petroleum and fossil fuels such as coal is about 80 % today. It is universally approved that fossil fuels are finite. Increase in the petroleum prices and environmental problems have been driving forces to find alternative and renewable energy resources. Biodiesel has attracted the attention of many researchers due to various advantages associated with its usages. The objective of this work was to analyze the potential of Cashew Nut Shell liquid (CNSL) as an alternative to Kerosene for lighting in Mongu, western Province of Zambia. The potential of using CNSL and its various blends with ethanol and kerosene to replace the use of kerosene in kerosene wick burners was evaluated. The blends tested were 30 %, 50 % and 70 % of CNSL in ethanol and kerosene. Kerosene and ethanol were bought from the local markets while CNSL was extracted using the traditional open pan roasting method. To examine the lighting potential of the blends, a standardized burning time (≥ 10 minutes) was set according to the literature. Effects of kerosene and ethanol on the physical chemical properties and consequently lighting potential of cashew nut shell liquid (CNSL) were studied and compared with kerosene and ethanol. The results show that CNSL and its blends with ethanol and kerosene cannot be successfully used as an alternative fuel in kerosene wick burners because they do not meet the good quality biodiesel standards (viscosity between 3.5 mm2 /s and 5 mm2 /s, density between 0.86 g/cm3 and 0.9 g/cm3 and flash point of 101 °C minimum). However it was found that addition of additives improved the lighting potential. Some physical and chemical composition of the biodiesel, mainly viscosity, shown to be a major drawback for biodiesels. Techniques that improves biodiesel viscosity are highly recommended for future research works to improve biodiesel quality before blending.