兼容火箭推进剂的燃料电池混合能源系统

Fuel cell hybrid energy system compatible with rocket propellant

针对使用液氢/液氧的重型火箭发动机上存在氢氧蒸发气体无法有效利用的问题,提出了一种与火箭推进剂兼容的氢氧燃料电池混合能源系统设计方案。混合能源系统以满足负载使用需求为主要目标,综合考虑氢氧燃料电池效率和锂电池使用寿命,制定了混合能源系统的控制策略以及混合能源系统评价函数。基于MATLAB的仿真分析结果表明,在火箭上使用混合能源系统比单一的锂电池减重约940 kg,系统比能量提高约214.5%,且可以与箭上生命保障、环境热控系统相结合,具有广阔的实际应用前景。

Aiming at the problem that hydrogen and oxygen vapor cannot be effectively utilized in heavy-duty rocket engines using liquid hydrogen/liquid oxygen,a design scheme for a hydrogen and oxygen fuel cell hybrid energy system compatible with rocket propellant was proposed.The main goal of the hybrid energy system is to meet the demand for load usage.Considering the efficiency of hydrogen and oxygen fuel cells and the service life of lithium batteries,the control strategy and evaluation function of the hybrid energy system are formulated.The simulation analysis results based on MATLAB show that using hybrid energy systems on rockets reduces the weight by about 940 kg compared to a single lithium battery,and increases the specific energy of the system by about 214.5%.It can be combined with life support and environmental control systems on rockets,and has broad practical application prospects.