Abstract This paper discusses the performance, exhaust emissions and combustion of a diesel generator fueled with two different biodiesels, and their blends. In the experiments, animal fat biodiesel (AFB) obtained from beef bone marrow, vegetable oil biodiesel (VOB) derived from safflower/canola oil mixture, and ultra-low-sulfur diesel (ULSD) were used as pure. In addition, 50% by volume of AFB was mixed with ULSD (AFB50), and 50% by volume of VOB was mixed with ULSD (VOB50). All engine tests were conducted at a constant engine speed of 1500 rpm for three different diesel generator loads (3.6, 7.2, and 10.8 kW). According to the results, when the AFB and its blend were used as fuel in a diesel generator, it was determined that cylinder gas pressure (CP) and net heat release rate (HRR) values were higher, and raised earlier in all loads compared with VOB and ULSD. Moreover, the values of mean gas temperature (MGT) and exhaust gas temperature (EGT) were increased with the use of AFB compared to other test fuels, whereas thermal efficiency (TE), carbon monoxide (CO) and hydro carbon (HC) emission decreased in general. The carbon dioxide (CO2) emission was also higher than ULSD, but remained lower than VOB. The nitrogen oxide (NOx) emission was found to show a similar change in all types of fuel.

中文翻译：

---

牛骨髓生物柴油在柴油发电机中的性能、排放和燃烧特性评估

摘要 本文讨论了以两种不同生物柴油及其混合物为燃料的柴油发电机的性能、废气排放和燃烧。在实验中，使用了从牛骨髓中提取的动物脂肪生物柴油 (AFB)、从红花/菜籽油混合物中提取的植物油生物柴油 (VOB) 和超低硫柴油 (ULSD)。另外，50体积％的AFB与ULSD(AFB50)混合，50体积％的VOB与ULSD(VOB50)混合。所有发动机测试均在 1500 rpm 的恒定发动机转速下针对三种不同的柴油发电机负载（3.6、7.2 和 10.8 kW）进行。根据结果​​，当 AFB 及其混合物用作柴油发电机中的燃料时，确定气缸气体压力 (CP) 和净热释放率 (HRR) 值较高，与 VOB 和 ULSD 相比，在所有负载中提早提早。此外，与其他测试燃料相比，使用 AFB 后平均气体温度 (MGT) 和废气温度 (EGT) 值增加，而热效率 (TE)、一氧化碳 (CO) 和碳氢化合物 (HC) 排放普遍下降。二氧化碳 (CO2) 排放量也高于 ULSD，但仍低于 VOB。发现氮氧化物 (NOx) 排放在所有类型的燃料中都显示出类似的变化。