在液体碳氢燃料中添加高能金属或非金属的固体颗粒是提高燃料能量特性的重要手段，基于液体火箭发动机平台在余氧系数0.60～0.80范围内开展了纯液体燃料、含纳米铝/硼颗粒燃料的理论性能预示与燃烧试验研究，探究了在碳氢燃料中添加纳米铝颗粒和纳米硼颗粒的影响，对比了浆体分散方案与凝胶分散方案的效果。结果表明：添加10%纳米铝/硼颗粒分别导致燃烧效率下降1.2%/2.4%，对应发动机密度比冲分别提高6.5%/3.2%，添加纳米铝颗粒在工程应用中更具潜力；相比四环庚烷（QC）纯液体燃料，添加了20%纳米硼颗粒的QC+B浆体燃料燃烧效率平均下降9.1%，密度比冲平均降低0.9%，而添加了20%纳米硼颗粒的QC+B凝胶燃料燃烧效率平均仅下降5.8%，密度比冲平均提高3.9%，凝胶方案相比于浆体方案更利于充分发挥纳米颗粒的高能量密度特性。

Adding high-energy metallic or non-metallic solid particles to liquid hydrocarbon fuel is an important means to improve the energy characteristics of fuel. Based on the liquid rocket engine platform, the theoretical performance prediction and combustion test research of pure liquid fuel and fuel containing nano-aluminum/boron particles were carried out with residual oxygen coefficient of 0.60～0.80, and the influence of adding nano-aluminum particles and nano-boron par-ticles to hydrocarbon fuel was explored, the effects of slurry dispersion scheme and gel dispersion scheme were com-pared. The results show that the addition of 10% nano-aluminum/boron particles leads to a decrease in combustion efficiency of 1.2%/2.4% and the corresponding engine density specific impulse increased by 6.5%/3.2% respectively. The addition of nano-aluminum particles has more potential in engineering applications; Compared with QC pure liquid fuel, the combustion efficiency of QC+B slurry fuel with 20% nano-boron particles added decreases by 9.1% on aver-age, and the density specific impulse decreases by 0.9% on average, while the combustion efficiency of QC+B gel fuel with 20% nano-boron particles added decreases by 5.8% on average, and the density specific impulse increases by 3.9% on average. The gel scheme is more conducive to giving full play to the high energy density characteristics of nanoparticles than the slurry scheme.