Hello friends,
We have chilled water system having hot and cold well. The return line is coming from a height of 30 mtrs. It looses its return head pressure (around 3 bar) in Hot well. Again secondary pumps have to pump from 0 bar to 5 bar in the supply header consuming much energy. As a energy conservation project, whether the chilled water system can be modified to closed loop to get the benefit of return water head pressure. Really will be there any energy saving. The water flow rate through chilled water system is around 600kl/hr.