本文選題：熱舒適性　切入點(diǎn)：氣流組織　出處：《北方工業(yè)大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著國民經(jīng)濟(jì)的發(fā)展,人們對空調(diào)建筑室內(nèi)熱舒適性的要求日漸提高,同時對室內(nèi)熱舒適性的研究也不斷加深,但目前單獨(dú)針對辦公室工位熱舒適性的研究較少。隨著房價的逐年攀升,辦公樓的租金上漲,為了使有限的辦公面積得到充分地利用,辦公室內(nèi)的工位布置越來越密集,因為空調(diào)氣流組織不佳導(dǎo)致室內(nèi)熱舒適性降低的問題日益突出,不僅影響人員的工作效率,而且長期處在這樣的辦公環(huán)境下也不利于人員的身心健康。本文針對辦公樓空調(diào)系統(tǒng),研究辦公室內(nèi)空調(diào)系統(tǒng)的氣流組織與室內(nèi)工位熱舒適性。近年來,利用CFD軟件來數(shù)值模擬分析室內(nèi)空調(diào)熱舒適性的研究和處理相關(guān)實際工程問題正在興起。它可以對室內(nèi)氣流組織分布的情況進(jìn)行數(shù)值模擬和預(yù)測,方便迅速、經(jīng)濟(jì)可靠,能為設(shè)計部門提供較全面可信的技術(shù)分析結(jié)果。本課題開展了以下相關(guān)研究:1)分析了影響空調(diào)室內(nèi)熱舒適性的六大因素,通過問卷調(diào)查方式,研究分析了四種典型空調(diào)形式下辦公室工位的熱舒適性情況。2)通過現(xiàn)場實驗測試的方式,測試當(dāng)空調(diào)開啟室內(nèi)達(dá)到穩(wěn)定狀態(tài)時工位處氣流組織的相關(guān)參數(shù),結(jié)合問卷調(diào)查結(jié)果、通過分析測試數(shù)據(jù)對辦公室內(nèi)工位空調(diào)的熱舒適性進(jìn)行評價。針對辦公樓建筑,提出了空調(diào)工位滿意率的新概念,來對辦公室內(nèi)空調(diào)氣流組織形式和工位布局合理性進(jìn)行分析和評價。3)對文中研究的四種典型空調(diào)形式辦公室建立物理模型進(jìn)行數(shù)值模擬,利用模擬結(jié)果與實測數(shù)據(jù)進(jìn)行比較分析,驗證模型的可靠性,再通過數(shù)值模擬的方式對這四種類型辦公室的空調(diào)氣流組織進(jìn)行改進(jìn)和優(yōu)化分析:針對立柜式空調(diào)送風(fēng)和風(fēng)機(jī)盤管側(cè)送風(fēng)空調(diào)不舒適的兩個房間提出了氣流組織的改進(jìn)方案;在房間進(jìn)深大、層高低的建筑條件限制下,采用散流器結(jié)合百葉側(cè)送風(fēng)的方式,室內(nèi)的熱舒適性能夠達(dá)到相關(guān)標(biāo)準(zhǔn)要求,工位滿意率高,為后面的設(shè)計人員遇見類似的情況提供參考;在老舊建筑改造中,如果采用百葉上送風(fēng)的方式將會造成室內(nèi)空調(diào)的熱舒適性較差。4)通過上述實測與理論研究,進(jìn)行了空調(diào)熱舒適性評價,結(jié)合熱舒適性評價提出了工位空調(diào)熱舒適性優(yōu)化方案。如果辦公室空調(diào)形式選擇不合理,導(dǎo)致室內(nèi)氣流組織分布不佳、影響人員熱舒適性時要么優(yōu)化室內(nèi)空調(diào)氣流組織形式,要么改變工位布局才能保證工位空調(diào)熱舒適性。5)分析了在實際工程中空調(diào)室內(nèi)氣流組織的主要分布形式,對工程中出現(xiàn)的空調(diào)熱舒適性不佳的原因進(jìn)行了總結(jié),并提出了工位熱舒適性優(yōu)化方法。隨著計算機(jī)技術(shù)的發(fā)展以及對室內(nèi)熱舒適性的深入研究,在辦公室建筑和其它類型建筑的空調(diào)系統(tǒng)的設(shè)計時,采用CFD模擬技術(shù)對優(yōu)化氣流組織設(shè)計、提高室內(nèi)空調(diào)熱舒適性將發(fā)揮越來越大的作用。
[Abstract]:With the development of national economy, the demand for indoor thermal comfort of air-conditioned buildings is increasing, and the research on indoor thermal comfort is also deepening. However, there are few researches on the thermal comfort of office space alone. With the price of house rising year by year and the rent of office building rising, in order to make full use of the limited office space, the layout of the office space is more and more intensive. Because the poor airflow organization of air conditioning leads to the decrease of indoor thermal comfort, the problem is becoming increasingly prominent, which not only affects the working efficiency of personnel, In this paper, the airflow organization and thermal comfort of the air conditioning system in the office building are studied in the light of the air conditioning system in the office building, and the thermal comfort of the indoor air conditioning system is also studied in recent years. Using CFD software to simulate and analyze the thermal comfort of indoor air conditioning and to deal with related practical engineering problems are emerging. It can simulate and predict the distribution of indoor air flow, which is convenient, rapid, economical and reliable. Can provide a more comprehensive and credible technical analysis results for the design department. This paper has carried out the following related research: 1) analyzed the six major factors that affect the thermal comfort of the air-conditioning room, and through the way of questionnaire, This paper studies and analyzes the thermal comfort of office stations under four typical air conditioning forms. 2) by the way of field test, the relevant parameters of airflow distribution in the air conditioning station are tested when the air conditioning open room reaches a stable state, and the results of the questionnaire survey are combined with the results of the questionnaire survey. Based on the analysis of test data, the thermal comfort of air conditioning station in office is evaluated. A new concept of satisfaction rate of air conditioning station is put forward for office buildings. To analyze and evaluate the air flow organization and the rationality of the station layout in the office. 3) to simulate the physical model of the four typical air conditioning forms studied in this paper. The reliability of the model is verified by comparing the simulation results with the measured data. Through the numerical simulation of the air flow organization of the four types of air conditioning improvement and optimization analysis: for the vertical cabinet type air supply air conditioning and fan coil unit side air supply air conditioning is not comfortable in two rooms put forward the air flow organization improvement scheme; Under the restriction of the building condition of deep room and high and low floor, the indoor thermal comfort can reach the relevant standard, and the satisfaction rate of the work station is high by adopting the way of diffuser combined with the shutter side air supply. To provide a reference for the latter designers to meet similar situations; in the old building renovation, if the air supply mode of the shutters is adopted, the thermal comfort of indoor air conditioning will be poor. 4) through the above measurement and theoretical research, The thermal comfort evaluation of air conditioning is carried out, and the optimal scheme of thermal comfort of station air conditioning is put forward. If the air conditioning form in office is not reasonable, the distribution of indoor air flow is not good. In order to ensure the thermal comfort of air conditioning station, the main distribution forms of indoor air flow organization in practical engineering are analyzed when the thermal comfort of personnel is affected either by optimizing the air flow organization form of indoor air conditioning or by changing the layout of work station. The causes of poor thermal comfort of air conditioning in engineering are summarized, and the optimization method of thermal comfort of working station is put forward. With the development of computer technology and the deep research on indoor thermal comfort, In the design of air conditioning system of office buildings and other types of buildings, the use of CFD simulation technology will play a more and more important role in optimizing the air flow organization design and improving the thermal comfort of indoor air conditioning.
【學(xué)位授予單位】：北方工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TU831

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