1、微胶囊固体推进剂技术,多用途,节约成本,绿色洁净,1,空间推进系统 www.sps.aero,微胶囊推进剂药粒包含特定比例的完全燃烧所必须的全部组分,2,Microcell Propellant Grains Can Be Packed to Minimize Voids By Using Various Grain Sizes,3,通过超临界技术制备胶囊颗粒: 150nm With 5-10 nm thickness,标准表面积: 2-4 Nanometer,Actual Nanoparticles with Tailored Uniform Coatings,4,Numerous Prop
2、ellant Material Combinations Can Be Formulated Into MFCs Providing a Selection of ISPs.(cont),5,Figure 1. Legend Std A (Red) - Peacekeeper Propellant Std B (Red) - Shuttle Propellant Green A - ADN Based Propellant (Single Phase Flow, No Pollutants) Green B - HNF Based Propellant (Single Phase Flow,
3、No Pollutants) HE/LD A- High Energy, Low Density ADN Formulation HE/LD B - High Energy, Low Density HNF Formulation HE/LD C - High Energy, Low Density AN/CL-20 Formulation HE/HD A - High Energy, Compact Engine ADN Formulation HE/HD B - High Energy, Compact Engine HNF Formulation,and Burn Rates,6,Mul
4、ti-layering of Differently Formulated MFCs Can Be Used to establish a Mission specific trust profile,7,Operational Benefits of Using MFCs in Rockets, Missiles, and Space Launch Vehicles,Enables A Seven Day Pour and Launch Using Precast “Stackable” Motors Predictive Modeling Enables Mission Specific
5、Motor Design Selection, Propellant Blending, and Mission Launch Vehicle Configuration Tailoring Mission Specific “Throttle” Profiles Can Be “Hardwired” Into the Launch Vehicle Motors Propellants Can Meet Differing Critical Mission Requirements Using The Same Launch Vehicle Configuration Reduces Laun
6、ch Operations Manpower Requirements Various MFC Formulations Can Be Stored for Rapid Grain Casting Potential for Both Significant Reductions in Cost of Operations and Significant Enhancement in Capabilities,8,cont,Solution for Critical Launch Vehicle/Motor Performance Issues Like Destructive Harmoni
7、cs/Vibration Microcell Solid Propellants Can Be Used For: Motors Using Conventional Grain Casting Experimental Motors/Engines Allows a New Approach to Development of Combined Cycle Engines for Aerospace-planes, Hypersonic Vehicles, and Fly-back Booster Applications, JATO, Aircraft Cruise Assist Allo
8、ws for “Pre-programmed” Smart Thrust Sequences for All Types of Missiles.,9,Unique Characteristics/Features of SPSs Microcellular Propellants,SPS Microcells- Allow for the safe combination of a large variety of highly energetic oxidizers and fuels Allow for balancing the chemical ingredients with hi
9、gh accuracy to optimal performance on a per microcell basis Possess a perfect micron thin protection barrier of low energy polymer fuel, integral to the Microcell, which prevents the highly energetic ingredients from mixing and destabilizing the propellant prior to controlled ignition Control the ig
10、nition temperature of the Microcell, and maintain that temperature by restricting Microcell ignition to the barrier/oxidizer reactions Provide a “thick” shell or rind of outermost layer polymeric (fuel) material which can strongly chemically bound to neighboring Microcells, polymeric propellant bind
11、er, and rocket motor casings Standardize the chemical identity of the Microcell outer rind polymeric (fuel) material so that all completed Microcells are externally identical Provide the ability to pre-produce and “stockpile” microcells in safe and secure storage facilities Provide the ability to sh
12、ip the protected environment and safe, essentially insensitive, Microcellular propellants to offsite storage facilities using conventional hazardous chemical shipping procedures Allows production of Green Propellants for all uses,10,Unique Advantages of SPSs MFC Manufacturing Process,SPS Supercritic
13、al Fluid Production Technology for Microcells Features Process a wide variety of solid, liquid, insoluble nanoparticulate, or in situ produced fuels, oxidizers, and burning moderatorsSimultaneously “grow” the Microcells and purify the components used in the production of the Microcell “Grow” balance
14、d composition Microcells to extremely small target dimensions with both high accuracy and reproducibility Simultaneously control the solubility of multiple components in the manufacture of Microcells to allow compounding of oxidizer and fuel components providing intimate and uniform mixtures of diff
15、erent oxidizers, oxidizers and burn rate modifiers, or other propellant Exclude moisture during the manufacturing process of Microcells Produce solid rocket propellants using a completely “green” manufacturing technology in commercial quantities,11,Non-Aerospace Commercial Applications,Fossil Fuels,
16、Energy Intensive Processes,Waste Generating Chemistry,Earth Systems Illiterate,Renewable Feedstocks,Renewable Energy,Atom Economy (zero waste),Earth Systems Literate,Life Cycle Analysis,Toxicology,Renewable Chemical Feedstock,Renewable Fuels,Green Chemistry & Engineering,Reduced Energy Intensity,Sus
17、tainability Education,Carbon Management,Current Paradigm,Ideal Vision,2005,2025,2105,2005 2025: Continued use of fossil fuels,2025 2105: Phase out of fossil fuels,Year:,12,Non-Aerospace Applications,Non-petroleum based replacement for jet fuel in commercial and military Aviation Emergency inflation
18、devices such as safe, programmable, automobile airbag restraint systems Rechargeable hydrogen storage devices Ordnance Water resistant explosives and gun propellants Pharmaceutical Applications - Controlled Release drug delivery systems for drug therapy Agricultural Applications Combined time releas
19、e fertilizer/pest control Electrical storage devices Spherical capacitors,13,Summary,SPS Microcell Grain Casting Technology Features Standardize grain casting procedures, regardless of Microcell internal composition Maximize the amount of highly energetic materials in cast solid propellant grains Fi
20、ll and pack the bi-modal distributions of Microcells to maximum packing density in solid propellant grain molds before casting Chemically fuse the Microcells, and Microcells and binder, by pressure infusion of a low viscosity energetic pre-polymer binder which fills the empty spaces between particle
21、s Enhance strength of case-to-grain bonding Multi-layer externally identical Microcells with different lifting powers (Isp and Thrust) and burn rates, thereby producing propellant grains with built in burn profiling (throttling) Provide propellant grains that will demonstrate exceptional reproducibi
22、lity in performance due to the exceptional uniformity of energetic materials distributed within the grain Allow casting of propellant grains at a processing facility at the launch site Can be used in existing solid rocket engines as a current propellant replacement and for either expendable or re-usable launch vehicle boosters with little or no changes to the motor design /hardware Could potentially allow casting of very large rocket engines without segmentation of the engine at a launch site as is currently required,14,