成都市某科研办公楼空调系统设计 大学论文.doc

成都市某科研办公楼空调系统设计 摘要 本工程为成都市某科研办公楼空调系统设计，，A RESEARCH BUILDING IN CHENGDU Abstract This project is about the design of the air-conditioning system of a research building in chengdu city, this building total floor is space 9745m2 ,the first floor height is 5m ,from two floor to five floor the height is 4m, and the total height is 21m. this building is composed by Exhibition Room、office、changing room and so on. The total air conditioning area is 7210.19m2. According to the geographical position project, the cold load coefficient method is adopted to calculate timing cold load. The water chilling unit for cold source is chosen by considering engineering practical situation, energy conservation, environmental protection. According to the room function, the fresh air adding fan-coil system or all air system is used. In order to form good performance, the outdoor air is handled to enthalpy point of indoor air, and enters the fan outlet of fan-coil, and is mixed up with return air which was handled by fan-coil, and is sent into the room finally. Consumed velocity method is employed in the calculation of hydraulic and air system. Honye software is adopted. The chill water pipe design of the air conditioning is similar with the design of the heating water system. Gradient should be set up to exclude air from system, and set pressure device for the hydraulic system should be installed. For the humid behavior of fan-coil, coagulate water discharge pipeline should also be installed. Keywords：Fresh air adding fan-coil system; All air system; Assuming velocity method 摘要 I Abstract II 1工程概况 1 2设计依据 2 2.1设计任务书 2 2.2设计规范及标准 2 2.3设计计算参数 2 2.3.1室外气象参数 2 2.3.2室内设计参数 2 2.4相关参数的选取 3 3负荷计算 4 3.1冷负荷理论依据 4 3.1.1房间冷负荷的构成： 4 3.1.2房间湿负荷的构成： 4 3.2主要计算公式 4 3.2.1围护结构瞬变传热形成冷负荷的计算方法 4 3.2.2透过玻璃窗的日射得热引起的冷负荷 5 3.2.3设备散热形成的冷负荷 5 3.2.4照明散热形成的冷负荷 6 3.2.5人体散热形成的冷负荷 7 3.2.6新风冷负荷 7 3.2.7湿负荷 8 4空调系统方案的确定 9 4.1空调系统的选取 9 4.1.1空调系统的划分原则 9 4.1.2方案的比较 9 4.1.3系统的选择 10 4.2风机盘管加独立新风系统的处理过程以及送风参数计算 11 4.2.1风机盘管的选择计算