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ID number:810649
 
Evaluation:
Published: 11.04.2023.
Language: Latvian
Level: College/University
Literature: n/a
References: Not used
Extract

1. Laboratorijas darbs (Sprādzienbīstamība un ugunsbīstamība)
Dots:

Vģ= 9000m3 ε= 0,7
Benzols (C6H6) Attālums no sprādziena 2m (L)
Tuzliesm= -11⁰C Tspg= 2000K
T0= 25⁰C ρg= 760kg/m3
Ttelpa= 25⁰C P0= 101kPa
Va= 2m3 Pmax= 900kPa


1. Aprēķināt sprādziena pārspiedienu ΔP (kPa) un noteikt, kādus postījumus sprādziens nodarīs ēkai.

ΔP = (Pmax – P0) * ((m * z) / (Vb * ρgt)) * (100 / Cst) * (1/ Kn) =
= (900 – 101) * ((1064 * 0,3) / (7200 * 3,45)) * (100 / 2,68) * (1 / 3) = 98,38 kPa…

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