Two-Stage Plasma Compression Driver for Vessel Stress Balancing
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Solution Overview
Problem
Existing plasma compression systems face challenges in providing sufficient power within a short time frame while managing high outward stresses on the vessel due to recoil forces and pressure buildup, leading to complex and expensive vessel designs.
Innovation Solution
A two-stage plasma compression driver with a driver piston and a pusher piston, where the pusher bore is smaller and lighter, amplifying power delivery through a compressible fluid and magnetic field, and an annular face surface counteracts outward pressure on the vessel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the compression operation time is reduced to compress plasma within milliseconds, then the plasma compression speed is improved, but the power requirement increases proportionally
Solution Approach 1:
The compression driver is segmented into two stages: a driver stage that builds pressure and a pusher stage that delivers the compression impulse. This segmentation allows the system to accumulate energy over a longer period then deliver it in a short, high-power pulse, achieving fast compression without requiring proportionally high continuous power.
Solution Approach 2:
The driver piston performs preliminary action by compressing the compression fluid in the compression chamber before the pusher piston is activated. This preliminary compression stores energy in the compression fluid, which is then rapidly transferred to the pusher piston to achieve the final plasma compression impulse, reducing the peak power requirement.
2Speed
If the compression operation happens quickly in the order of milliseconds, then the plasma compression speed is improved, but the outward stress on the vessel increases due to recoil force and pressure buildup
Solution Approach 1:
The compression driver is segmented into two stages: a driver stage that builds pressure and a pusher stage that delivers the compression impulse. This segmentation allows the system to accumulate energy over a longer period then deliver it in a short, high-power pulse, achieving fast compression without requiring proportionally high continuous power.
Solution Approach 2:
The driver piston performs preliminary action by compressing the compression fluid in the compression chamber before the pusher piston is activated. This preliminary compression stores energy in the compression fluid, which is then rapidly transferred to the pusher piston to achieve the final plasma compression impulse, reducing the peak power requirement.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Reduces stress on the vessel by balancing inward and outward forces, enabling efficient plasma compression within milliseconds with reduced vessel complexity and cost.
Implementation Method 1
compression of the compression fluid or magnetic field by the driver piston moving towards the pusher piston applies pressure on the pusher piston
Implementation Method 2
applies pressure on the pusher piston, such that the pusher piston pushes the liquid medium into the vessel
Implementation Method 3
the pusher piston pushes the liquid medium into the vessel to collapse the liquid liner and compress the plasma
Implementation Method 4
Plasma contained in a cavity within a liquid liner can be compressed by imploding the liquid liner
Data Source
Figure 1
Figure 2
Figure 3(A)~3(B)
AI summary
A plasma compression driver is connected to a plasma containment vessel containing a liquid medium that forms a liquid liner containing plasma, and comprises a pair of coaxially aligned pistons that are sequentially driven towards the liquid liner. A pusher bore containing a pusher piston is coaxial with and has a smaller diameter than a driver bore containing a driver piston such that an interconnecting annular face surface is defined at the junction of the driver and pusher bores. During the compression operation, a prime mover accelerates the driver piston towards the pusher piston and compresses a compression fluid, which accelerates the pusher piston and pushes the liquid medium in the pusher bore into the vessel, causing the liquid liner to collapse, and compressing the plasma. Outward forces on the vessel wall caused by compression driver recoil and increased vessel pressure is counteracted by an inward force applied by the compression fluid on the annular face surface during the compression operation.