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In order to adapt to the development of various air-conditioning came into being. Such as inverter air conditioner, it is a popular trend in air conditioning consumption, low saving and environmental protection, energy consumption; CFC-free air conditioning, the birth of a major environmental problem by the current global challenges, CFC-free air conditioning is awaited products; air-conditioned comfort to give a lot of development, healthy development is one of the themes of air conditioning, people have become increasingly demanding quality of life; the development of more than a drag from a reflection of the enormous changes in our living environment, but also pointed out the direction for their own development .
The design for the Shanghai-Xin building air conditioning systems engineering. This design is the multi-purpose building including the office buildings, restaurants, shopping malls , office areas are mostly smaller, mutually connected with each room, air conditioning system should be selected to achieve independent control of each room, considering various factors, determine the selection of vrv and fresh air system. in the room to arranged ceiling vrv indoor units, using concealed form. The centralized system is set to vrv with independent air system and vrv with the total heat exchanger, fresh air unit introduced fresh air from the outside treatment to the indoor state point , does not bear the indoor load. Vrv indoor undertake indoor cooling load. Total heat exchanger does not undertake interior and new wind load, vrv indoor interior bear the entire load. Vrv indoor unit plus an independent air system and lower total heat exchanger outlet sent by the louvers. Vrv complete selection of indoor and outdoor units on the basis of the calculation of the cooling load. It is determined by the load of the gas-liquid pipe of the indoor unit, branch pipes and condenser specification to determine air flow through the duct specifications.
目录
1设计依据 1
1.1国家主要规范和行业标准 1
1.2设计范围 1
1.3建筑围护结构的热工性能 1
1.4设计原则 1
1.5设计参数 1
1.5.1室外设计参数： 1
1.5.2室内设计参数 2
2空调冷负荷计算 3
2.1冷负荷计算依据和公式 3
2.1.1外墙和屋面传热冷负荷计算公式 3
2.1.2外窗的温差传热冷负荷 3
2.1.3外窗太阳辐射冷负荷 3
2.1.4内围护结构的传热冷负荷 4
2.1.5人体冷负荷 4
2.1.6灯光冷负荷 5
2.1.7设备冷负荷 5
2.1.8渗透空气显热冷负荷 6
2.1.9食物的显热散热冷负荷 6
2.1.10散湿量与潜热冷负荷 6
2.2热负荷计算依据和公式 8
2.2.1围护物的基本耗热量Qj的计算 8
2.2.2附加耗热量 9
2.2.3通过门、窗缝隙的冷风渗透耗热量Q2(W) 9
2.2.4外门开启冲入冷风耗热量Q3(W) 10
2.2.5单层厂房的大门开启冲入冷风耗热量Q3(W) 11
3新风负荷计算 12
3.1新风量的确定 12
3.2夏季空调新风冷负荷的计算 12
3.3新风机组的选型 12
3.4全热换热器的选型 13
4气流组织设计 14
4.1气流组织设计原则 14
4.2气流组织设计计算 14
4.2.1送风口设置 14
4.2.2回风口的设置 14
4.3空调风道水力计算 15
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