Liquid Fueled Engine Test Stand Testing, data acquisition, - - PowerPoint PPT Presentation

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Liquid Fueled Engine Test Stand Testing, data acquisition, - - PowerPoint PPT Presentation

Jan 02, 2024 304 likes •756 views

Liquid Fueled Engine Test Stand Testing, data acquisition, integration platform for liquid propellent based rocket components Project Overview and motivation PSAS Goal Send a rocket above the 100 km Krmn line The future of Portland

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Liquid Fueled Engine Test Stand

Testing, data acquisition, integration platform for liquid propellent based rocket components

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Project Overview and motivation

PSAS Goal Send a rocket above the 100 km Kármán line

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  • LV-3 (Launch Vehicle 3, current design)
  • Spring Launch
  • 6” diameter
  • Carbon Fiber construction
  • Solid Rocket motor
  • Testing platform for airframe

technologies § Electronic Nosecone Separation Ring (ENSR) § Reaction Control System (RCS)

The future of Portland State Aerospace Society Rockets

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  • LV-4 (Launch Vehicle 4) - larger version of

LV-3 with:

  • 100km launch capability
  • Switch to Liquid Fuel to maintain single

stage construction

  • Technologies Enabling LV-4:

§ Reaction Control System § Cryogenic Carbon Fiber Tanks § Electric Propellent Feed § Thrust Vanes or Gimballing § Engine Throttling

The future of Portland State Aerospace Society Rockets

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  • 2.2 kN thrust ground-test engine
  • Liquid Oxygen(LOX) + Isopropyl alcohol

(IPA)

  • Liquid Oxygen centered pintle injection
  • Gaseous Oxygen spark-torch ignition
  • Regeneratively cooled

combustion chamber

  • Direct Metal Laser Sintering 3D-printed

AlSi10Mg § Thank you i3DMFG!

Liquid Fuel Engine Test Stand

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Engine Design

Fuel port LOX Port Cooling Channels Pintle Fuel Metering Annular Orifice

Liquid Fuel Engine Test Stand

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Pintle Injector

Active sub-project

  • Prototype has been

produced

  • Manufacturing

process for design has been documented

Liquid Fuel Engine Test Stand

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Pintle Injector

Cold Flow Test Jig

  • Test Jig has been built
  • Test procedure is

under development

Project is being overseen by an industry advisor Liquid Fuel Engine Test Stand

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Purpose: To allow for the safe

testing and flight integration of liquid propellant engines and related technologies. Liquid Fuel Engine Test Stand

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General requirements: Data and Analysis

  • Controlled Remotely By a Computer
  • Measure engine performance characteristics

Liquid Fuel Engine Test Stand

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General requirements: Functionality

  • Deliver propellants to test engine
  • Provide a reliable source of ignition
  • Modular, used for multiple engines

Liquid Fuel Engine Test Stand

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Lox Handling with the Air National Guard General requirements: Safety

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General requirements: Safety

  • Physical design to mitigate hazards
  • Default to failsafe mode
  • Computerized safety procedure
  • Physically isolatable from computer

Liquid Fuel Engine Test Stand

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Documentation and Safety

  • Identify potential hazards
  • Storage and transportation best practices

Liquid Fuel Engine Test Stand

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Documentation and Safety

  • University Risk Management Meetings

○ Insurance ○ SOP’s and documentation ○ Transportation

Liquid Fuel Engine Test Stand

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Test Stand Design: FEA Liquid Fuel Engine Test Stand

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Frame Construction Liquid Fuel Engine Test Stand

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Piping and Instrumentation Diagram (P&ID)

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P&ID:

Pressure Panel

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P&ID:

Pressure Panel

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Piping and Instrumentation Diagram (P&ID)

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P&ID:

Pressure Feed System

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P&ID:

Pressure Feed System

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Piping and Instrumentation Diagram (P&ID)

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P&ID:

Fuel Line

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Piping and Instrumentation Diagram (P&ID)

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P&ID:

LOX Line

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Piping and Instrumentation Diagram (P&ID)

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P&ID:

Igniter

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P&ID:

Igniter Testing

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Piping and Instrumentation Diagram (P&ID)

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P&ID:

Purge Line

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New Member Orientation

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TSAR - Test Stand Automation and Regulation

  • Control of the firing sequence from desktop

application via Wifi

  • Separate sensing from engine control
  • Engine control microprocessor written in C for

fast failure detection

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Real Time Calculations

  • Thrust
  • Mass Flow Rate
  • Temperature
  • Critical Pressures
  • And More!
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Bill of Materials

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Bill of Materials (Continued)

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Bill of Materials (Continued...)

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What's Next for LFETS?

  • Test the Pintle
  • Test and refine Augmented Spark Igniter
  • Main Fuel Valve (hydraulic load testing)
  • Main LOX Valve (Code and refine, test with LN2)
  • Capacitive LOX Fill Level Sensor
  • LOX safe Cavitating Venturi (flow rate sensor)
  • Final build, testing and analysis of stand
  • Live Engine Test

Test Stand Projects

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Future Test Stand flight hardware integration

Electronic Feed System (EFS) Cryogenic Carbon Fiber Fuel Tank (CFT)

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Our thanks to Oregon Space Grant Consortium and NASA for their support.