本文選題：地下車庫 + 火災(zāi)　； 參考：《西華大學(xué)》2014年碩士論文

【摘要】：隨著社會(huì)的發(fā)展，城市轎車保有量持續(xù)增加，停車難已經(jīng)成為一個(gè)社會(huì)問題。為此，地下車庫已成為越來越重要的公共設(shè)施。 由于地下車庫空間受限，進(jìn)出口不多，自然通風(fēng)條件差，火災(zāi)一旦發(fā)生，人員及財(cái)產(chǎn)損失巨大。因此研究火災(zāi)的發(fā)展規(guī)律以及消防措施對(duì)火災(zāi)的影響效果意義重大。 本文利用FDS建立了一個(gè)大型車庫的三維簡化模型。研究了沒有排煙、有排煙，，排煙+水噴淋等三種條件下的火災(zāi)場景。主要分析不同場景下煙氣發(fā)展規(guī)律，溫度、氣體濃度、能見度等火災(zāi)參數(shù)的變化規(guī)律。在此基礎(chǔ)上考察排煙設(shè)施和噴淋設(shè)施的控制效果，所有數(shù)值計(jì)算在西華大學(xué)先進(jìn)計(jì)算中心完成。 研究結(jié)果表明：排煙系統(tǒng)可以直接排出室內(nèi)高溫有毒氣體，降低煙氣濃度，有效改善能見度。自動(dòng)噴淋能夠明顯的降低室內(nèi)火場溫度，提高煙氣層高度，而且與機(jī)械排煙系統(tǒng)共同作用時(shí)，對(duì)火災(zāi)的控制效果更好，有利于人員的疏散和消防撲救工作。該研究可為防火設(shè)計(jì)和消防評(píng)估提供參考，對(duì)減少火災(zāi)對(duì)人類造成的危害具有重大意義。
[Abstract]:With the development of society, the number of urban cars keeps increasing, and parking difficulty has become a social problem. To this end, underground garage has become more and more important public facilities. Because the underground garage space is limited, the entrance and outlet is not much, the natural ventilation condition is poor, once the fire occurs, the loss of personnel and property is huge. Therefore, it is of great significance to study the development law of fire and the effect of fire prevention measures. In this paper, FDS is used to establish a three-dimensional simplified model of a large garage. The fire scene under three conditions of no exhaust smoke and exhaust water spray was studied. The variation of fire parameters, such as smoke development, temperature, gas concentration, visibility and so on, is analyzed in different scenarios. On this basis, the control effects of smoke exhaust facilities and sprinkler facilities were investigated. All numerical calculations were performed at the Advanced Computing Center of Xihua University. The results show that the smoke exhaust system can directly discharge the indoor high temperature toxic gas, reduce the smoke concentration, and improve the visibility effectively. Automatic spraying can obviously reduce the indoor fire temperature, improve the height of smoke layer, and when combined with the mechanical smoke exhaust system, the fire control effect is better, which is conducive to the evacuation of personnel and fire fighting work. This study can provide a reference for fire prevention design and fire assessment, and is of great significance to reduce the harm caused by fire to human beings.
【學(xué)位授予單位】：西華大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TU926;TU998.1

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