Measurement of Solid Propellant Burning Rate using Stojan Vessel

Hong-Min Shim; Sung June Kim; Byoung Sun Min; Sung Min Myung

doi:10.6108/KSPE.2025.29.5.036

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2025 Vol.29, Issue 5 Preview Page Next Page

RESEARCH PAPERS

Measurement of Solid Propellant Burning Rate using Stojan Vessel Stojan vessel을 이용한 고체 추진제 연소속도 측정 연구

31 October 2025. pp. 36-46

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Abstract

The strand burner is a device commonly used to measure the burning rate of solid propellants, offering a simple measurement principle and easy calculation of burning rates. However, for propellants such as double- base propellants that exhibit complex burning behavior depending on pressure, numerous tests are required. In this work, a Stojan vessel capable of obtaining the pressure-dependent burning rates of solid propellants in a single test was used to measure and analyze the burning rates of three types of propellants. For HTPB-based solid propellants, the burning rates obtained from the Stojan-vessel were slower than those measured with the strand burner, though the difference decreased as the pressure increased. In contrast, for NEPE-based solid propellants, the difference in burning rate was smaller at low pressures but relatively larger at high pressures. The pressure exponent calculated using the Stojan vessel was higher than that obtained with the strand burner.

Keywords

Stojan Vessel

Closed Bomb

Burning Rate

Solid Propellant

스트랜드 버너는 고체 추진제의 연소속도를 측정하기 위한 장치로 측정 원리가 단순하고 연소속도 계산이 쉽지만, 복기 추진제처럼 압력에 따른 복잡한 연소 거동을 보이는 추진제에 대해서는 많은 횟수의 시험이 필요하다. 본 연구에서는 한 번의 시험만으로도 압력에 따른 고체 추진제의 연소속도를 획득할 수 있는 스토얀 베슬을 사용하여 3종의 추진제에 대해 연소속도 측정 및 분석을 수행하였다. 그 결과 HTPB계 고체 추진제의 경우 스토얀 베슬로 계산된 연소속도가 스트랜드 버너로 구한 것보다 느렸으며 압력이 증가할수록 그 차이는 감소하였다. 반면 NEPE계 추진제의 경우 연소속도 차이는 저압에서 작았지만, 고압으로 갈수록 상대적으로 커졌다. 스토얀 베슬로 계산한 압력지수는 스트랜드 버너로 구한 것보다 큰 값을 가졌다.

키워드

스토얀 베슬

밀폐용기

연소속도

고체 추진제

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Information

Publisher :The Korean Society of Propulsion Engineers
Publisher(Ko) :한국추진공학회
Journal Title :Journal of the Korean Society of Propulsion Engineers
Journal Title(Ko) :한국추진공학회지
Volume : 29
No :5
Pages :36-46
Received Date : 2025-05-06
Revised Date : 2025-07-18
Accepted Date : 2025-08-21
DOI :https://doi.org/10.6108/KSPE.2025.29.5.036

Journal of the Korean Society of Propulsion Engineers ISSN:1226-6027(Print) 2288-4548(Online) 한국추진공학회지

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