Thermal Characteristics of Coconut Shells as Boiler Fuel

IF 2.4 Q3 ENERGY & FUELS
M. Yulianto, E. Hartulistiyoso, L. Nelwan, S. Agustina, C. Gupta
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引用次数: 1

Abstract

Agricultural waste products, such as wood, rice husk, corn waste, and coconut shells, are abundantly available  and can potentially be used as an energy source, particularly  for direct combustion in boilers. Because coconut production increases every year, it would be useful to find an alternative use for coconut shells, which are a type of coconut waste. As coconut shells can be used as fuel in boilers, the aim of this study was to evaluate the thermal characteristics of coconut shells in this regard. This study used experimental results to evaluate the performance of a boiler when coconut shells were used as solid fuel. The variations in feed rate were 5, 7.5, and 10 kg/h, and the water flow rates varied between 1 litre per minute (lpm), 2 lpm, and  3 lpm. Temperature data were collected every second via data acquisition , and the mass flow rate of the flue gas was collected every 5 min using a pitot tube equation. One of the parameters evaluated in determining the success of coconut shells as boiler fuel is the thermal efficiency of the boiler. The results showed that the maximum thermal efficiency reached approximately 62.04%, and the maximum flue gas temperature was approximately 500 ℃ for a biomass mass flow rate of 7.5 kg/h. The maximum water temperature of the boiler was 99 ℃, which was reached at a minimum water flow rate of 1 lpm. The results showed that coconut shells are suitable for use as boiler fuel. 
椰壳作为锅炉燃料的热特性
农业废物,如木材、稻壳、玉米废料和椰子壳,可大量使用,并有可能用作能源,特别是用于锅炉中的直接燃烧。因为椰子产量每年都在增加,所以找到椰子壳的替代用途是有用的,椰子壳是一种椰子废料。由于椰子壳可以用作锅炉中的燃料,本研究的目的是评估椰子壳在这方面的热特性。本研究使用实验结果来评估椰子壳用作固体燃料时锅炉的性能。进料速率的变化为5、7.5和10kg/h,水流量在每分钟1升(lpm)、每分钟2升和每分钟3升之间变化。通过数据采集每秒收集一次温度数据,并使用皮托管方程每5分钟收集一次烟气的质量流速。在确定椰子壳作为锅炉燃料的成功性时评估的参数之一是锅炉的热效率。结果表明,当生物质质量流量为7.5kg/h时,最大热效率约为62.04%,最大烟气温度约为500℃。锅炉的最高水温为99℃,这是在最小水流量为1 lpm时达到的。结果表明,椰子壳适合用作锅炉燃料。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
4.50
自引率
16.00%
发文量
83
审稿时长
8 weeks
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