The poor thermal properties of biogas, such as spark and flame point and heating value, cause the auto-ignition problem in an internal combustion engine. This increases the consumption of fuel and hydrocarbon emissions. It is required to improve the engine output aspects and minimize emissions in diesel engine mode. In this regard, an attempt was made in which biogas was produced from the mixture of silkworm larval litter and cashew nut fruit. Different blends of diesel and biogas were used to power a single-cylinder four-stroke diesel engine. The engine has experimented at a constant compression ratio of 16 and speed of 1500 rpm with varying load conditions of 20%, 40%, 60%, 80%, and 100%. Various parameters such as brake thermal efficiency, brake specific fuel consumption, heat release maximum pressure were determined at different loading conditions. Exhaust gases were subjected to emission analysis. From the results, it was observed that brake thermal efficiency was reduced from 22% (100% diesel) to 17% (70% diesel+30% biogas) at 80% load condition. There was a reduction in NOx and CO levels when the engine was operated with dual-fuel mode.

沼气的热性能差，例如火花，火焰点和热值，会引起内燃机的自燃问题。这增加了燃料和碳氢化合物排放的消耗。在柴油发动机模式下，需要改善发动机输出方面并最小化排放。在这方面，人们尝试从蚕幼虫幼崽和腰果果实的混合物中产生沼气。柴油和沼气的不同混合物用于驱动单缸四冲程柴油发动机。发动机已经以16的恒定压缩比和1500 rpm的速度进行了实验，并在20％，40％，60％，80％和100％的变化负载条件下进行了试验。各种参数，例如制动器热效率，制动器比油耗，在不同的负载条件下确定了放热最大压力。对废气进行排放分析。从结果可以看出，在80％的负载条件下，制动器的热效率从22％（100％柴油）降低到17％（70％柴油+ 30％沼气）。当发动机以双燃料模式运行时，NOx和CO含量降低。