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设计总说明本设计为广东珠江宏发商场空调工程设计，通过设计将为商场内的人员提供舒适的工作、消费环境。本设计结合商场空调的特点，根据广东地区的能源结构与能源使用现状及目前的经济发展水平，在满足人体热舒适、提高工作效率的前提下，充分考虑了整个中央空调系统的节能减排。23986
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空调系统方案的论证和冷水机组的选型；制冷机房的设计；空调机组的选型，风系统和水系统的设计；然后绘制出每一层的层风管布置图、水管布置图、机房布置图和水系统图。
首先要进行负荷计算，空调冷负荷主要由围护结构、外窗太阳辐射、人体散热、照明、设备器具管道等内部散热、食物、渗透空气等散热形成的，空调的负荷计算主要包括空调冷负荷的计算、新风负荷的计算、湿负荷的计算、热负荷的计算等，本设计的负荷计算主要采用计算机软件进行。进行计算前要根据所给出的建筑条件图进行房间编号，再根据空调冷负荷的构成统计房间尺寸、门窗尺寸、围护结构的传热系数、房间的朝向、传热面积、室外气象条件、室内设计参数等信息。经计算得出，该商场的总冷负荷为1656.918KW，最大负荷时刻出现在下午19：00。
其次要确定建筑物的空调系统类型，根据设计建筑的本身用途，通过研究各种空调系统的特点选定建筑的中央空调系统。
根据给定的设计参数和计算出的参数，查找相应的资料手册，进行系统的水力计算，在水力计算中，根据已绘出的系统草图，确定系统的最不利管段，标注最不利管段的节点，采用假定流速法进行分段的水力计算，得出整个管路的管径和整个管路的水力损失，对于管路水力损失较大的管段进行管径调整，得出合理的沿程总水力损失。根据计算的沿程水力损失，合理估算局部水头损失所占的份额，确定总水力损失，根据各种设备选型的计算公式，经计算后选定水力机械，确定合适的泵和风机的型号。将数据汇总编制成EXCEL表格形式。
此外还要考虑整个系统水质的处理，根据规范和要求设置水处理设备，包括软化水箱、自动加药桶和补水供水设备等。毕业论文
通过方案比较，在负荷计算的基础上，主楼采用了集中式空调系统形式。每层单设新风机组,保证室内湿度和新风量的要求。冷冻水由地下室的冷冻机房供应，采用了闭式异程两管制水系统。设计工程中考虑了消声、减振和保温等措施。
Design General Information Abstract
This air-conditioning systems design is for Guangdong Pearl River Hongfa market ，and it will be afford a comfortable working environment for indoor staff. The design combines features of air-conditioned market building, according to Tong Xiang region's energy structure and energy situation and the current level of economic development, from the perspective of energy-saving design, providing people with a comfortable, safe and healthy working environment.
The mall has three floors, a total construction area of 5910 m ². The air conditioning design is mainly for market. For the office staff, visitors and other staff’s provide a comfortable and healthy environment. According the architectural design of the different parts of the structural features, it takes full account of the indoor environment of comfort.
First ,the load calculation must be carried on, air conditioning cooling load is mainly composed of palisade structure, outside the window the sun radiation, the body heat, lighting, equipment pipe such as internal cooling, food, such as infiltration air cooling, air conditioning load calculation mainly includes the calculation of air conditioning cooling load, the new wind load and moisture load calculation, the calculation of heat load, the design load calculation is mainly using computer software. Calculated according to the figure construction conditions of given before the room number, and then according to the composition of air conditioning cooling load room size, the size of the doors and Windows, the heat transfer coefficient of enclosure structure, of the front of room, heat transfer area, outdoor meteorological conditions, the information such as indoor design parameters. According to the energy efficiency design standards, combining with calculation software, adopts the method of harmonic response or radiant time series method calculates the hourly cooling load of the whole office. By the calculation, the store's total cooling load of 1656.918 KW, maximum load moment appeared clearly in the afternoon.
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