Fluidic Variable Inertia Flywheel
Fluidic Variable Inertia Flywheel
复制标题
流体可变惯性飞轮
DOI：
10.2514/6.2009-4501
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
J. Ven
中科院分区：
文献类型：
--
作者：
J. Ven
从混合动力汽车到非高峰电力再到旋转机械，储能对于许多应用都很重要。飞轮提供了高能量密度和高功率密度的组合，这是其他能量存储介质无法达到的。在许多情况下，以恒定角速度储存能量是可取的。这项工作提出了一种新型的自控式射流变惯量飞轮，可以在一定的储能范围内保持恒定的角速度。流体飞轮使用活塞将充满液体的腔室与排入大气的腔室分开。由于恒力弹簧反作用的液体的径向压力梯度，在活塞上产生力平衡。添加到系统中的能量以两种形式存储：增加恒定角速度下的飞轮的动能和增加恒定力弹簧的势能。设计实例表明，射流飞轮具有恒定的角速度，其质量转动惯量比常规飞轮小一个数量级。这项前景看好的技术可以实现简单的恒定角速度能量存储系统，但还需要在许多领域进行进一步的工作。
Energy storage is important for many applications from hybrid vehicles to off-peak electric power to rotating machinery. A flywheel offers the combination of high energy density and high power density not attainable with other energy storage medium. In many situations, it is desirable to store energy at a constant angular velocity. This work proposes a novel self-governing fluidic variable inertia flywheel that can maintain a constant angular velocity across a range of energy storage. The fluidic flywheel uses a piston to separate the liquid filled chamber from a chamber vented to atmosphere. A force balance is created on the piston due to the radial pressure gradient of the liquid reacted by a constant force spring. Energy added to the system is stored in equally two forms: increases the kinetic energy of the flywheel at a constant angular velocity and increasing the potential energy of the constant force spring. A design example demonstrates that the fluidic flywheel enables a constant angular velocity with an order of magnitude lower mass moment of inertia than a conventional flywheel. This promising technology enables a simple constant angular velocity energy storage system, yet requires future work in numerous areas.