Study on measurement of gas temperature and pressure after explosion in closed cavity at small-scaled distance

ZHANG Jijun; ZHANG Dongliang; ZHAO Jianwei; ZHANG Baoguo; CUI Yunxiao

doi:10.11883/bzycj-2018-0039

Volume 39 Issue 2

Feb. 2019

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Article Navigation > Explosion And Shock Waves > 2019 > 39(2): 024103

ZHANG Jijun, ZHANG Dongliang, ZHAO Jianwei, ZHANG Baoguo, CUI Yunxiao. Study on measurement of gas temperature and pressure after explosion in closed cavity at small-scaled distance[J]. Explosion And Shock Waves, 2019, 39(2): 024103. doi: 10.11883/bzycj-2018-0039

Citation:

ZHANG Jijun, ZHANG Dongliang, ZHAO Jianwei, ZHANG Baoguo, CUI Yunxiao. Study on measurement of gas temperature and pressure after explosion in closed cavity at small-scaled distance[J]. Explosion And Shock Waves, 2019, 39(2): 024103. doi: 10.11883/bzycj-2018-0039

Citation:

ZHANG Jijun, ZHANG Dongliang, ZHAO Jianwei, ZHANG Baoguo, CUI Yunxiao. Study on measurement of gas temperature and pressure after explosion in closed cavity at small-scaled distance[J]. Explosion And Shock Waves, 2019, 39(2): 024103. doi: 10.11883/bzycj-2018-0039

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Study on measurement of gas temperature and pressure after explosion in closed cavity at small-scaled distance

doi: 10.11883/bzycj-2018-0039

Northwest Institute of Nuclear Technology, Xi'an 710024, Shaanxi, China

Received Date: 2018-01-29
Rev Recd Date: 2018-05-07
Publish Date: 2019-02-05

Abstract

Abstract

For the purpose of accurate measurement of temperature and pressure changes in cavity explosion, a gas temperature and pressure after explosion measurement system was built for closed explosion based on K-type thermocouple and pressure transmitter. By designing a heat-insulation protection device, sensors' sensitive areas and signal modulation modules were installed in two different seal cavities independently. By doing this, sensors' survival under blast wave was raised. Sensors and the protect device were tested at the scaled distance of 0.86 m/kg^1/3. Gas temperature and pressure after explosion efficient changing progress was gained and sensors can be restored to the initial state. The test result shows that by installing K-type thermocouple and pressure transmitter to proper protecting device, gas temperature and pressure changing progress after explosion can be measured at small scaled closed explosion.
- closed explosion,
- temperature measurement,
- pressure,
- measurement,
- K-type thermocouple,
- heat-insulation protection,
- small-scaled distance,
- closed cavity

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References

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