本文選題：自保溫墻板 + 傳熱系數(shù)��； 參考：《河南大學(xué)》2014年碩士論文

【摘要】：能源是維持人類(lèi)文明的主要因素，節(jié)能環(huán)保成為了一個(gè)世界性的研究課題。據(jù)研究表明，每年建筑能耗占全社會(huì)能耗的28%左右，而外墻耗能占建筑總能耗的20%到30%。因此，研制新型保溫圍護(hù)體系是解決建筑能耗問(wèn)題的主要途徑之一。本研究根據(jù)現(xiàn)代已有研究成果，自住創(chuàng)新提出了以聚苯板作為保溫夾心層的陶�；炷凛p質(zhì)自保溫復(fù)合墻板，兩種板層通過(guò)高分子塑料纖維連接在一起，使各個(gè)板層成為能協(xié)同工作的整體，保證墻板既具有良好的熱工性能又具有優(yōu)良的力學(xué)性能。 本研究的創(chuàng)新點(diǎn)在于選取自保溫體系作為研究對(duì)象，選取保溫性能優(yōu)秀的聚苯板和兼保溫與承重性能為一體的陶�；炷磷鳛閴Π宓闹黧w材料，通過(guò)采取有效構(gòu)造措施減少由熱橋效應(yīng)引起的能源消耗，理論分析與模擬試驗(yàn)數(shù)據(jù)分析相結(jié)合，同時(shí)利用ANSYS有限元分析軟件進(jìn)行建模分析，得出了各個(gè)分析結(jié)果的一致性，全面論證此新型保溫墻板的研究?jī)r(jià)值和應(yīng)用意義。 本文研究的重點(diǎn)是輕質(zhì)自保溫復(fù)合墻板的保溫性能和力學(xué)性能。陶�；炷潦潜狙芯繅Π宓闹饕兄夭牧希疚氖紫扔懻摿似滟|(zhì)輕、高強(qiáng)，保溫的性質(zhì)。采用兩種方法求出了，一定強(qiáng)度等級(jí)下的陶�；炷恋膹椥阅Ａ浚约吧钊敕治隽藫饺氲姆勖夯覍�(duì)其抗?jié)B性能的影響。在研究本輕質(zhì)自保溫復(fù)合墻板的熱工性能，首先通過(guò)理論計(jì)算兩種類(lèi)型墻板的傳熱系數(shù)。本研究自保溫墻板與泡沫混凝土自保溫墻板相比，傳熱系數(shù)小了很多，理論證明了本研究自保溫墻板保溫性能和耐久性的優(yōu)越性。然后通過(guò)熱工性能檢測(cè)試驗(yàn)，研究分析了在墻板兩側(cè)不同的穩(wěn)態(tài)溫度下各板層的溫度分布與保溫夾心層厚度的關(guān)系；通過(guò)試驗(yàn)數(shù)據(jù)建立了溫度場(chǎng)模擬圖形，引入了一個(gè)溫度場(chǎng)正切因子的概念，確定了一定墻板厚度下，所使用保溫夾心層的尺寸。對(duì)本自保溫復(fù)合墻板的傳熱系數(shù)理論計(jì)算值與試驗(yàn)值進(jìn)行對(duì)比分析，找到了小偏差的原因。最后通過(guò)有限元模擬軟件進(jìn)行分析，輸出的溫度場(chǎng)圖表與通過(guò)試驗(yàn)數(shù)據(jù)建立的溫度場(chǎng)圖形，誤差允許范圍內(nèi)完全吻合。在研究本輕質(zhì)自保溫復(fù)合墻板的力學(xué)性能，主要從軸心受壓和恒定軸壓比下的水平受力兩個(gè)方面進(jìn)行研究，兩種試驗(yàn)都采用時(shí)間控制加載的方式。描述了墻板的破壞形態(tài)，，分析了在加載過(guò)程中，墻板的位移曲線(xiàn)和荷載曲線(xiàn)，測(cè)得了本自保溫墻板設(shè)定厚度尺寸下的極限承載力。 綜合以上分析得出，本研究輕質(zhì)自保溫復(fù)合墻板的保溫性能復(fù)合國(guó)家相關(guān)規(guī)范對(duì)圍護(hù)結(jié)構(gòu)節(jié)能不小于65%節(jié)能標(biāo)準(zhǔn)以及力學(xué)性能的要求，證實(shí)了其在實(shí)際工程中應(yīng)用的可行性。
[Abstract]:Energy is the main factor to maintain human civilization, energy conservation and environmental protection has become a worldwide research topic. According to the research, the energy consumption of the building accounts for about 28% of the total energy consumption of the whole society every year, while the energy consumption of the exterior wall accounts for 20% to 30% of the total energy consumption of the building. Therefore, the development of new insulation envelope system is one of the main ways to solve the problem of building energy consumption. In this study, according to the existing research results, a novel composite wall board of ceramic grain concrete with polystyrene as the insulation sandwich layer is proposed. The two kinds of panels are connected together by polymer plastic fiber. Each layer can work together as a whole to ensure that the wall board has good thermal performance and excellent mechanical performance. The innovation of this study is to select the self-insulation system as the research object, the polystyrene board with excellent thermal insulation performance and the ceramsite concrete as the main material of the wall board. By taking effective construction measures to reduce the energy consumption caused by the heat bridge effect, the theoretical analysis is combined with the simulation test data analysis. At the same time, the ANSYS finite element analysis software is used to model and analyze the energy consumption, and the consistency of the analysis results is obtained. The research value and application significance of this new type insulation wall board are demonstrated in an all-round way. This paper focuses on the thermal insulation and mechanical properties of lightweight self-insulating composite wall panels. Ceramsite concrete is the main load-bearing material in this study. The properties of lightweight, high-strength and heat preservation are discussed in this paper. The elastic modulus of ceramsite concrete with a certain strength grade and the influence of fly ash on its impermeability are calculated by two methods. In order to study the thermal performance of the lightweight self-insulating composite wall panel, the heat transfer coefficient of two types of wall panels is calculated theoretically. The heat transfer coefficient of the self-insulating wall board is much smaller than that of the foamed concrete wall board. The theory proves the superiority of the research on the thermal insulation performance and durability of the self-insulating wall board. Then, through the test of thermal performance, the relationship between the temperature distribution of each layer and the thickness of the insulation sandwich layer under the different steady temperature on both sides of the wall board is studied and analyzed, and the simulation pattern of the temperature field is established through the test data. A concept of tangent factor of temperature field is introduced, and the size of the insulation sandwich layer is determined under certain wall thickness. The theoretical calculation value of heat transfer coefficient and the experimental value of the self-insulating composite wall panel are compared and analyzed, and the reasons for the small deviation are found. Finally, through the finite element simulation software analysis, the output temperature field diagram and the temperature field graph established through the test data, the error is completely consistent within the allowable range. In this paper, the mechanical properties of the lightweight self-insulating composite wallboard are studied mainly from two aspects: axial compression and horizontal force under constant axial compression ratio. Both tests adopt time-controlled loading mode. The failure mode of the wall panel is described and the displacement curve and load curve of the wall board during the loading process are analyzed. The ultimate bearing capacity of the self-insulating wall panel is measured under the given thickness size. According to the above analysis, the thermal insulation performance of light-weight self-insulating composite wall panel is studied. The requirements of the national code for energy saving of envelope structure are not less than 65%, and the requirement of mechanical properties is proved, which proves the feasibility of its application in practical engineering.
【學(xué)位授予單位】：河南大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：TU551

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 趙鐵軍,朱金銓,馮乃謙;大摻量粉煤灰對(duì)混凝土滲透性的影響[J];粉煤灰綜合利用;1997年01期

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