서지주요정보
Development and evaluation of Throttled Hydrogen Peroxide/Kerosene Bipropellant engine for landing vehicles = 착륙선을 위한 추력 조절 과산화수소/케로신 이원추진제 엔진의 개발 및 평가
서명 / 저자 Development and evaluation of Throttled Hydrogen Peroxide/Kerosene Bipropellant engine for landing vehicles = 착륙선을 위한 추력 조절 과산화수소/케로신 이원추진제 엔진의 개발 및 평가 / Vincent Mario Pierre Ugolini.
발행사항 [대전 : 한국과학기술원, 2025].
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8043577

소장위치/청구기호

학술문화관(도서관)2층 학위논문

DAE 25017

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초록정보

Several governmental agencies and private companies have recently gained interest in landing technologies to prepare exploration programs for the Moon and other celestial bodies. For this purpose, a hydrogen peroxide/kerosene liquid bipropellant thruster could propose an alternative to conventional toxic propellants. However, recent findings have highlighted the difficulty of using pulse throttling for lander demonstrators, while research using continuous throttling has mostly been performed on hybrid propulsion using hydrogen peroxide. In this thesis, a hydrogen peroxide/kerosene bipropellant thruster was controlled using a variable area cavitating venturi valve in the oxidizer feeding line. Monopropellant tests using hydrogen peroxide were performed to determine throttling instability, and then bipropellant tests were performed to gain insight into the behavior of such thrusters in transient conditions. Finally, experiments were performed to replicate the trajectory of a lander demonstrator.

최근 여러 정부 기관과 민간 기업이 달 및 기타 천체 탐사 프로그램을 준비하기 위해 착륙 기술에 관심을 가지기 시작하였다. 이를 위해, 과산화수소/등유 액체 이중 추진체 엔진이 기존의 유독한 추진체에 대한 대안으로 제안될 수 있다. 그러나 최근 연구 결과는 착륙선 시연기에서 펄스 스로틀링을 사용하는 것이 어렵다는 점을 강조하였다. 반면, 지속적인 스로틀링을 사용하는 연구는 주로 과산화수소를 사용하는 하이브리드 추진에 대해 수행되었다. 본 논문에서는 산화제 공급 라인에 가변 면적 공동 벤츄리 밸브를 사용하여 과산화수소/등유 이중 추진체 엔진을 제어하였다. 과산화수소를 사용하는 단일 추진체 시험을 통해 스로틀링 불안정을 확인한 후, 이중 추진체 시험을 통해 이러한 엔진이 과도 상태에서 어떻게 작동하는지에 대한 통찰을 얻었다.

서지기타정보

서지기타정보
청구기호 {DAE 25017
형태사항 vi, 103 p. : 삽화 ; 30 cm
언어 영어
일반주기 저자명의 한글표기: 뱅쌍 마리오 피에르 우골리니
지도교수의 영문표기: Kwon, Se Jin
지도교수의 한글표기: 권세진
수록잡지명: "Transient effects by pintle motion in cavitating venturi tube for throttled bipropellant thruster". Acta Astronautica, 225, 295-306(2024)
학위논문 학위논문(박사) - 한국과학기술원 : 항공우주공학과,
서지주기 References: p. 95-101
주제 Hydrogen peroxide
Kerosene
Throttling
Flow control valve
Lander
과산화수소
케로신
조절
조절밸브
착륙선
QR CODE

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이 주제의 인기대출도서

SLIM Lander [2]

Chang'e 3 Lander [3]

Nova-C propulsion system

Raptor engine system

TEC Lander

Lander propulsion system requirements

High-pressure-drop injector schematics ofRL10

Cross-sectional view ofa dual-plate injector [15]

Pintle injector [16]

RD-180 multiple chamber throttling

Comparison between Pulse and Continuous Throttling[11

Testbed madeby Moon Y.J.

Bipropellant thruster

Showerhead injector

Catalyst at final stage

Calculation of maximum pintle stroke

Flow control valve sketch

Oxidizer Valve Assembly

Oxidizer mass flow rate as a function of pintle stroke

PCFC valve in kerosene line

PCFC sketch

Kerosene mass flow rate as a function ofPCFC position

CVVD Pressure WSST for a stroke of1.25 mm

CVVD Pressure WSST for a stroke of1.25mm (Steady State only)

CVVD Pressure WSST for a stroke of2.5 mm

CVVD Pressure WSST for a stroke of2.5 mm (Steady State only)

CB Pressure WSST for a stroke of1.5 mm

CB Pressure WSST for a stroke of2.5 mm

Monopropellant Throttling Test CVVD Pressure WSST analysis

Monopropellant Throttling Test CB Pressure WSST analysis

Catalyst bed data when throttling before decomposition temperature

Thrust command for each experiment.

Temperature in C1,C2, C3

Command 1 Sequence

Command 2 Sequence

Command 3 Sequence

Variation of pressure during each experiment

Pressure data during C1 (a), C2(b), C3 (c)

Momentum ratio and Weber number during bipropellant sequences

Characteristic velocities and pintle stroke

Characteristic velocity (a) and 0/F ratio (b) in C1

Oxidizer (a) and fuel (b) mass flow rate during C1

Characteristic velocity (a) and 0/F ratio (b) in C2

Oxidizer (a) and fuel (b) mass flow rate during C2

Characteristic velocity (a) and 0/F ratio (b) in C3

Oxidizer (a) and fuel (b) mass flow rate during C3

Thrust and Chamber pressure during C1(a), C2(b), C3(c)

Pulse Width Modulation thruster used in DALBIT-1

Lander Demonstrator Mass Budget

Reinforcement learning components

Position and velocity requirements

Position and velocity for the short landing sequence

Thrust for the short landing sequence

Mass flow rate for the short landing sequence

Mass flow rate for short lander sequence (fuel constant)

Position and velocity results

Thrust sequence

Thrust during the experiment

Mass flow rate during the experiment

0/F Ratio

ISP during the experiment

Impact ofISP hypothesis on the thrust input

ISP shifts according to pintle stroke

Quantity ofpropellant used during the test

Demonstrator and Propellants Mass