冷却塔全运行周期内动态出水温度计算方法

冷却水的进水温度受到多方面因素的影响，其值在空调运行周期内是动态变化的。以重庆地区的冷却塔空调系统为研究对象，针对不同类型的公共建筑，提出了在不同运行模式下的全运行周期内冷却水温度的动态计算方法。该计算方法同时考虑了气象参数、负荷率及冷却塔运行模式对冷却水温度的影响。同时对不同类型建筑在不同影响因素下的冷却水温度进行了动态计算，以计算结果为基础，提出了冷却塔出水温度与负荷率的关系。最后通过实验对所提出的计算方法进行验证。计算值与实验值的平均相对误差小于5%。

Calculation of Cooling Water Outlet Temperature in Full Operational Cycle

Cooling water inlet temperature is also affected by many other factors, and its value in the air conditioning running cycle is dynamic. In this paper, several cooling tower systems in Chongqing area was researched, and for different types of public buildings, the dynamic calculation method under different operation modes was presented, within the entire operating cycles of these systems. This method takes into consideration not only meteorological parameters, loading rate but also the influence of operation mode on the cooling water temperature. At the same time, for different types of buildings under various influences from associated factors, the cooling water temperature was calculated dynamically. Based on the calculation result the relationship between cooling tower outlet temperature and loading rate was proposed. Finally the validation experiments for the proposed calculation method was done with the result showing that the average relative error between calculated values and experimental ones is less than 5%.