kurtyna powietrzna, jako bariera w przypadku pożaru

Budownictwo i Architektura 13(4) (2014) 15-22

.XUW\QDSRZLHWU]QDMDNREDULHUDZSU]\SDGNXSRDUXGrzegorz Krajewski1

1,QVW\WXW7HFKQLNL%XGRZODQHM=DNDG%DGD2JQLRZ\FKXO.VDZHUyZ-656 Warszawa, e-mail: [email protected]

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Grzegorz Krajewski16

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kurtyn do celw w\G]LHOHQLD VWUHI QLH]DG\PLRQ\FK Z F]DVLH SRDUX 1D SRGVWDZLHdotychczas zdobytej wiedzy jedyna zastosowana kurtyna powietrzna w tunelu drogowym ]QDMGXMHVLZH)UDQFMLZ3DU\XQDF]HQLXWUDV\$L$6WUXPLHNXUW\Q\QDFK\ORQ\MHVW SRG NWHP ]D SUGNR QD Z\ORFLH Z\QRVL PV 6]F]HOQR NXUW\Q\ VLJDSUDNW\F]QLHSU]\UyQLF\FLQLHQLDGR3D>@

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Fizyka Budowli Kurtyna powietrzna, jako bariera w przypadku poaru 17

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kurtyn do celw w\G]LHOHQLD VWUHI QLH]DG\PLRQ\FK Z F]DVLH SRDUX 1D SRGVWDZLHdotychczas zdobytej wiedzy jedyna zastosowana kurtyna powietrzna w tunelu drogowym ]QDMGXMHVLZH)UDQFMLZ3DU\XQDF]HQLXWUDV\$L$6WUXPLHNXUW\Q\QDFK\ORQ\MHVW SRG NWHP ]D SUGNR QD Z\ORFLH Z\QRVL PV 6]F]HOQR NXUW\Q\ VLJDSUDNW\F]QLHSU]\UyQLF\FLQLHQLDGR3D>@

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2. Charakterystyka kurtyny powietrznejKurtyna powietrzna jest sztucznie wytworzonym sWUXPLHQLHP SRZLHWU]D RGG]LDXM

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cztery podstawowe strefy [2}: potencMDOQ\ UG]H VWUHI SU]HMFLRZ VWUHI UR]ZLQLWi VWUHI UR]SUDV]DMFD]DPLHUDQLDVWUXPLHQLD=QDMRPRFKDUDNWHU\VW\NLQLQLHMV]\FKVWUHIMHVWQLH]EGQDGRSURZDG]HQLDDQDOL]GRW\F]F\FKV]F]HOQRFLNXUW\Q\SRZLHWU]QHMMDNLMHM]DFKRZDSRGZS\ZHPRGG]LD\ZDQLDF]\QQLNyZ]HZQWU]Q\FK

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3. Metodyka prowadzenia analiz

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Air barriers used for separating smoke free zones in case of fire in tunnel

Grzegorz Krajewski1

1,QVW\WXW7HFKQLNL%XGRZODQHM=DNDG%DGD2JQLRZ\FKXO.VDZHUyZ-656 Warszawa, e-mail: [email protected]

Abstract: The aim of this paper is to take the advantage of CFD application in calcu-lating, optimising, and designing air curtains used to separate smoke free zones in case of fire in tunnel. Air curtains can be a good solution in case when the usage of solid obstruc-tions is not feasible(for example in a big tunnel). A properly designed air curtain produces a pressure drop which prevents transversal flow through the opening. An accurate CFD calculation of an air curtain is challenging because of the high air velocity and relatively thin nozzle. Most air curtains are tested on scaled down models which are difficult to extrapolate. Tests in a real scale model are performed and the tests results are used to verify the chosen turbulence model. The intention of this paper is to present the comparison between the CFD calculations and tests results.

kurtyna powietrzna, jako bariera w przypadku pożaru

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