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master's thesis
NUMERIČKA SIMULACIJA EKSPLOZIJE SMJESE ZRAKA I ISPARENOG UKAPLJENOG NAFTNOG PLINA
Slavonski Brod: Josip Juraj Strossmayer University of Osijek, Mechanical Engineering Faculty in Slavonski Brod, 2018. urn:nbn:hr:153:296650
Matić, Josip
Josip Juraj Strossmayer University of Osijek
Mechanical Engineering Faculty in Slavonski Brod

Institutional repository: Repository of Mechanical Engineering in Slavonski Brod

Cite this document

Matić, J. (2018). NUMERIČKA SIMULACIJA EKSPLOZIJE SMJESE ZRAKA I ISPARENOG UKAPLJENOG NAFTNOG PLINA (Master's thesis). Slavonski Brod: Josip Juraj Strossmayer University of Osijek, Mechanical Engineering Faculty in Slavonski Brod. Retrieved from https://urn.nsk.hr/urn:nbn:hr:153:296650

Matić, Josip. "NUMERIČKA SIMULACIJA EKSPLOZIJE SMJESE ZRAKA I ISPARENOG UKAPLJENOG NAFTNOG PLINA." Master's thesis, Josip Juraj Strossmayer University of Osijek, Mechanical Engineering Faculty in Slavonski Brod, 2018. https://urn.nsk.hr/urn:nbn:hr:153:296650

Matić, Josip. "NUMERIČKA SIMULACIJA EKSPLOZIJE SMJESE ZRAKA I ISPARENOG UKAPLJENOG NAFTNOG PLINA." Master's thesis, Josip Juraj Strossmayer University of Osijek, Mechanical Engineering Faculty in Slavonski Brod, 2018. https://urn.nsk.hr/urn:nbn:hr:153:296650

Matić, J. (2018). 'NUMERIČKA SIMULACIJA EKSPLOZIJE SMJESE ZRAKA I ISPARENOG UKAPLJENOG NAFTNOG PLINA', Master's thesis, Josip Juraj Strossmayer University of Osijek, Mechanical Engineering Faculty in Slavonski Brod, accessed 24 November 2024, https://urn.nsk.hr/urn:nbn:hr:153:296650

Matić J. NUMERIČKA SIMULACIJA EKSPLOZIJE SMJESE ZRAKA I ISPARENOG UKAPLJENOG NAFTNOG PLINA [Master's thesis]. Slavonski Brod: Josip Juraj Strossmayer University of Osijek, Mechanical Engineering Faculty in Slavonski Brod; 2018 [cited 2024 November 24] Available at: https://urn.nsk.hr/urn:nbn:hr:153:296650

J. Matić, "NUMERIČKA SIMULACIJA EKSPLOZIJE SMJESE ZRAKA I ISPARENOG UKAPLJENOG NAFTNOG PLINA", Master's thesis, Josip Juraj Strossmayer University of Osijek, Mechanical Engineering Faculty in Slavonski Brod, Slavonski Brod, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:153:296650

Metadata
TitleNUMERIČKA SIMULACIJA EKSPLOZIJE SMJESE ZRAKA I ISPARENOG UKAPLJENOG NAFTNOG PLINA
Title (english)NUMERICAL SIMULATION OF EXPLOSIVE MIXTURES OF AIR AND EVAPORATED LIQUEFIED PETROLEUM GAS
AuthorJosip Matić
MentorDražan Kozak (mentor)
Committee memberDražan Kozak (član povjerenstva)
Committee memberŽeljko Ivandić (predsjednik povjerenstva)
Committee memberMarija Živić (član povjerenstva)
GranterJosip Juraj Strossmayer University of Osijek
Mechanical Engineering Faculty in Slavonski Brod
Slavonski Brod
Defense date and country2018-09-12, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
Abstract
U radu je opisana numerička simulacija eksplozije smjese zraka i isparenog ukapljenog naftnog plina (UNP) TNT ekvivalentnim modelom, primjenom Autodyn hidrokoda. TNT ekvivalentni model se često koristi za modeliranje eksplozija oblaka pare. Kod TNT ekvivalentnog modela smatra se da je eksplozija ekvivalentna TNT eksploziji s jednakom energijom eksplozije. Kao referentni eksploziv odabran je TNT jer je najpoznatiji eksploziv u smislu poznavanja fizičkih svojstava udarnog vala. Nadalje, za mnoge eksplozive kao što su plinovite smjese, nisu poznati parametri Jones-Wilkins-Lee (JWL) jednadžbe stanja i uobičajeno je koristiti ekvivalentnu masu TNT-a. Za pretpostavljeni problem eksplozije smjese zraka i isparenog UNP promatrala se interakcija s betonskim zidom. Uz pretpostavku zida idealno krutim tijelom, dobivena je konzervativna procjena vrijednosti vršnog tlaka reflektiranog vala. Rezultati analize predstavljeni su u smislu vrijednosti vršnog tlaka reflektiranog vala i krivulja tlaka reflektiranog vala u nadzornim točkama. Analiza je pokazala da vršne vrijednosti tlaka reflektiranog vala znatno ovise o gustoći mreže, geometriji objekata refleksije i kutu upadnog vala.
Abstract (english)
In this paper, a numerical simulation of explosive mixture of air and evaporated liquefied petroleum gas using TNT equivalent model, using Autodyn hydrocode. The TNT equivalent model is often used to model the vapor cloud explosion. For the TNT equivalent model, it is considered that the explosion is equivalent to the TNT explosion with an equeal energy of the explosion. As a reference explosive, TNT was chosen because it is the most known explosive in terms of knowing the physical properties of the shock wave. Furthermore, for many explosives, such as gaseous mixtures, there are no known JWL parameters and it is common for an equivalet mass of TNT to be used. For the alleged problem of a mixture of air and evaporated UNP blast, the interaction with the concrete wall of the gas storage was observed. Assuming that the wall was an ideal rigid body, a conservative estimate of the peak pressure of the refracted wave is obtained. Results of the analyses are presented in a term of peak values of pressure of the refleted wave and the curve of the pressure of reflected wave at the control points. The analysis has shown that the peak reflected pressure greatly depends on the density of the grid, geometry of objects of reflection and the angle of incidence.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:153:296650
Study programmeTitle: Graduate Study Mechanical Engineering; specializations in: Design and Product Development, Manufacturing Logistics, Materials Engineering, Engineering Technologies, Power Engineering
Course: Design and Product Development
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to students and staff of home institution
Terms of useLicence In copyright icon
Created on2018-09-13 12:42:01