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Experimental investigation of jojoba as a renewable energy source

机译：霍霍巴作为可再生能源的实验研究

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This work examined jojoba (oil and cake) as possible alternative fuel sources. Jojoba is a shrub that grows very well in deserts and its cake is the solid part produced upon processing of the jojoba seeds for oil extraction. In this study, pure jojoba oil and 50/50 blends with diesel fuel were tested as fuels in a single cylinder diesel engine. The diesel fuel was the baseline of comparison throughout the runs. The cake was tested for both direct combustion (pellets) and as a substrate for biogas production. The pellets were formed by compacting the cake in cylindrical dies using a hydraulic press while the biogasification was conducted in an anaerobic digester model Bioflo 110 from Brunswick. The findings indicate that the optimum injection pressure for jojoba oil in the engine is 210 bars at which engine speed was maximum (2700 rpm), NO_x and CO emissions as well as exhaust temperature were minimum. Using jojoba cake for biogasification resulted in a yield of about 600 ml biogas per 400 g of jojoba cake. Burning jojoba compacted cake (pellets) for direct combustion in a stove indicated that jojoba cake sustained a temperature in excess of 300 ℃ for a reasonable amount of time and that the cake was very competitive to wood and has energy content more than most types of wood. Overall, it may be stated that both jojoba oil and cake hold real promise as alternative energy sources.
机译：这项工作检查了荷荷巴油（油和蛋糕）作为可能的替代燃料来源。霍霍巴油是一种灌木，在沙漠中生长良好，其蛋糕是加工霍霍巴油用于提取种子时产生的固体部分。在这项研究中，将纯霍霍巴油和50/50的柴油混合物作为单缸柴油发动机的燃料进行了测试。柴油是整个运行过程中比较的基准。测试了滤饼的直接燃烧（小丸）和作为沼气生产的底物。通过使用液压机将饼在圆柱形模具中压实而形成团粒，同时在来自Brunswick的厌氧消化池型号Bioflo 110中进行生物气化。研究结果表明，发动机中霍霍巴油的最佳喷射压力为210巴，此时发动机转速最大（2700 rpm），NO_x和CO排放以及排气温度最小。使用霍霍巴饼进行生物气化，每400克霍霍巴饼产生约600毫升沼气。在炉子中燃烧霍霍巴紧实饼（小丸）直接燃烧表明，霍霍巴饼在一段合理的时间内能承受超过300℃的温度，并且该饼对木材具有很强的竞争力，并且比大多数类型的木材具有更高的能量含量。总的来说，可以说荷荷巴油和蛋糕作为替代能源都具有真正的前景。

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