新型墙体材料全生命周期能耗研究

发布时间：2018-02-24 19:00

本文关键词： 墙体材料生产能耗使用能耗节能建筑能耗模拟　出处：《湖北工业大学》2013年硕士论文　论文类型：学位论文

【摘要】：由于城市建设的飞速发展，对新型墙体材料的运用越来越多，也就带来建筑节能工程设计发展，同时也涌现出了许多建筑能耗问题。作为工程设计的一个重要部分，建筑节能设计涉及的技术领域非常广泛，既包括墙体材料方面的课题，更有建筑能耗模拟研究的课题。本文通过阅读大量参考文献，调查分析四种墙体材料的生产能耗和物耗，运用ANSYS软件对墙体的节能性能进行分析。并以监利市监利·银湖城项目中一栋高层居民建筑为模型，运用理论分析和数值模拟分析方法，比较了四种外墙在使用过程中的夏季制冷冬季采暖的能耗。主要工作和结论如下：（1）对四种新型墙体材料的生产原料以及生产工艺进行分析，对它们在生产过程中的物耗和能耗进行测算。数据分析结果，生产单位体积泡沫混凝土的能耗、物耗最小，近似为350Kw·h、水泥323kg、粉煤灰54kg，蒸压砂加气混凝土砌块的是600Kw·h，蒸压加气混凝土砌块的是650Kw·h，，蒸压灰砂砖的是510Kw·h。（2）为了比较这四种墙体材料在节能性能上的优劣，运用ANSYS软件进行有限元热分析，模拟在室外温度36度，室内温度25度的情况下，计算墙体各个节点的温度。得出结论，蒸压加气混凝土砌块内温度分布均匀，隔热性能较好。蒸压砂加气混凝土砌块与泡沫混凝土内温度分布均匀，温度下降较快且相似，隔热性能更好。蒸压灰砂砖内部温度较高，但在保温砂浆层温度下降较快，影响保温砂浆使用寿命；（3）本文对节能设计原理进行分析，掌握对节能设计影响的因素，通过能耗计算结果，进行节能设计优化。根据四个季节的气候特点模拟，以及每天24小时温度辐射等进行模拟。能耗计算得到的能耗数据，对建筑节能数据进行分析整理，掌握使用过程中不同墙材建筑的能耗量，并进行比较。得出结论，四种新型墙体材料全生命周期能耗总量最低的是由泡沫混凝土作为墙体的建筑，蒸压砂加气混凝土砌块、蒸压加气混凝土砌块、蒸压灰砂砖，能耗量依次增高。蒸压灰砂砖与加气混凝土墙体相比较，可得只需要在生产中多投入些能耗，在使用过程中我们能够得到高回报。
[Abstract]:With the rapid development of urban construction, more and more new wall materials have been used, which has brought about the development of building energy saving engineering design, and at the same time, a lot of building energy consumption problems have emerged, which is an important part of engineering design. The design of building energy conservation involves a wide range of technical fields, including the subject of wall materials and the subject of building energy consumption simulation. This paper, by reading a large number of references, investigates and analyzes the production energy consumption and material consumption of four kinds of wall materials. Using ANSYS software to analyze the energy saving performance of the wall, and taking a high-rise residential building in Jianli 路Yinhu City Project of Jianli City as a model, using theoretical analysis and numerical simulation analysis method. The energy consumption of four kinds of exterior walls in summer refrigeration and winter heating is compared. The main work and conclusions are as follows:. This paper analyzes the raw materials and production process of four new wall materials, and calculates the material consumption and energy consumption in the production process. The results show that the energy consumption per unit volume of foamed concrete is the smallest. About 350 KW 路h, 323kg cement, 54kg fly ash, 600kw 路h autoclaved sand aerated concrete block, 650Kw 路h autoclaved aerated concrete block, 510Kw 路h autoclaved lime sand brick. In order to compare the advantages and disadvantages of the four kinds of wall materials in energy saving performance, the finite element thermal analysis is carried out by using ANSYS software, and the temperature of each node of the wall is calculated under the condition of outdoor temperature of 36 degrees and indoor temperature of 25 degrees. The temperature distribution in autoclaved aerated concrete block is uniform, and the thermal insulation property is better. The temperature distribution of autoclaved sand aerated concrete block and foam concrete block is uniform, the temperature drop is faster and similar, the thermal insulation property is better, and the internal temperature of autoclaved lime sand brick is higher. However, the temperature of the insulating mortar layer decreases rapidly, which affects the service life of the insulating mortar. This paper analyzes the principle of energy saving design, grasps the factors that affect energy saving design, optimizes the energy saving design through the result of energy consumption calculation, and simulates the climate characteristics of four seasons. The energy consumption data obtained from the energy consumption calculation, the analysis and arrangement of the building energy saving data, the mastery of the energy consumption of different wall buildings in the process of use, and the comparison between them, are concluded. The lowest total energy consumption in the whole life cycle of the four new wall materials is the building with foam concrete as the wall, autoclaved sand aerated concrete block, autoclaved aerated concrete block, autoclaved lime sand brick, Compared with the aerated concrete wall, autoclaved lime-sand brick can only put in more energy consumption in production, and we can get a high return in the process of use.
【学位授予单位】：湖北工业大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU201.5

【参考文献】