Economics and performance of using Pearl River water as cooling water for chillers

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.