珠江水作为冷水机组冷却水的经济性能研究
Economics and performance of using Pearl River water as cooling water for chillers
摘要：
以广州地铁海珠广场站为例，对珠江水作为冷水机组冷却水和使用冷却塔循环冷却水的性能进行了分析，比较了珠江沿岸其他地点的珠江水温度与冷却塔出水温度。研究结果表明，7月份之前珠江水温度低于冷却塔出水温度，这段时间气温较低，空调负荷较低；7—10月，尤其是7，8月，随着气温升高珠江水温度高于冷却塔出水温度，同时由于珠江水杂质较多等问题，采用珠江水作为冷却水没有显著的经济优势。
Abstract：
Taking the Haizhu Square station of Guangzhou Metro as an example, analyses the performance of chillers using Pearl River water and circulating water of cooling tower and compares temperatures of the river water and circulating water of cooling tower in different places along the bank line. The results show that temperature of the river water is lower than that of circulating water of cooling tower before July and the cooing load of air conditioning system is lower due to lower environment temperature; and that temperature of the river water is higher than that of circulating water of cooling tower from July to October, especially in July and August, together with the problem of higher impurity content in the river water, indicating that using Pearl River water as cooling water for chillers has no obvious economic advantage.
Keywords:Pearl River water, cooling water, chiller, cooling tower